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# Copyright 2019 Canonical Ltd. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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|
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import asyncio |
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import os |
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import uuid |
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import yaml |
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import tempfile |
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import binascii |
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import base64 |
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|
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from n2vc.config import ModelConfig |
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from n2vc.exceptions import K8sException, N2VCBadArgumentsException |
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from n2vc.k8s_conn import K8sConnector |
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from n2vc.kubectl import Kubectl, CORE_CLIENT, RBAC_CLIENT |
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from .exceptions import MethodNotImplemented |
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from n2vc.utils import base64_to_cacert |
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from n2vc.libjuju import Libjuju |
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|
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from kubernetes.client.models import ( |
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V1ClusterRole, |
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V1ObjectMeta, |
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V1PolicyRule, |
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V1ServiceAccount, |
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V1ClusterRoleBinding, |
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V1RoleRef, |
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V1Subject, |
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) |
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|
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from typing import Dict |
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|
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SERVICE_ACCOUNT_TOKEN_KEY = "token" |
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SERVICE_ACCOUNT_ROOT_CA_KEY = "ca.crt" |
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RBAC_LABEL_KEY_NAME = "rbac-id" |
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|
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ADMIN_NAMESPACE = "kube-system" |
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RBAC_STACK_PREFIX = "juju-credential" |
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|
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# from juju.bundle import BundleHandler |
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# import re |
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# import ssl |
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# from .vnf import N2VC |
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|
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|
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def generate_rbac_id(): |
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return binascii.hexlify(os.urandom(4)).decode() |
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|
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class K8sJujuConnector(K8sConnector): |
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def __init__( |
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self, |
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fs: object, |
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db: object, |
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kubectl_command: str = "/usr/bin/kubectl", |
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juju_command: str = "/usr/bin/juju", |
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log: object = None, |
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loop: object = None, |
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on_update_db=None, |
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vca_config: dict = None, |
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): |
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""" |
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:param fs: file system for kubernetes and helm configuration |
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:param db: Database object |
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:param kubectl_command: path to kubectl executable |
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:param helm_command: path to helm executable |
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:param log: logger |
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:param: loop: Asyncio loop |
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""" |
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|
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# parent class |
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K8sConnector.__init__( |
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self, |
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db, |
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log=log, |
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on_update_db=on_update_db, |
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) |
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self.fs = fs |
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self.loop = loop or asyncio.get_event_loop() |
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self.log.debug("Initializing K8S Juju connector") |
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required_vca_config = [ |
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"host", |
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"user", |
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"secret", |
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"ca_cert", |
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] |
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if not vca_config or not all(k in vca_config for k in required_vca_config): |
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raise N2VCBadArgumentsException( |
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message="Missing arguments in vca_config: {}".format(vca_config), |
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bad_args=required_vca_config, |
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) |
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port = vca_config["port"] if "port" in vca_config else 17070 |
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url = "{}:{}".format(vca_config["host"], port) |
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model_config = ModelConfig(vca_config) |
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username = vca_config["user"] |
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secret = vca_config["secret"] |
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ca_cert = base64_to_cacert(vca_config["ca_cert"]) |
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self.libjuju = Libjuju( |
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endpoint=url, |
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api_proxy=None, # Not needed for k8s charms |
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model_config=model_config, |
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username=username, |
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password=secret, |
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cacert=ca_cert, |
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loop=self.loop, |
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log=self.log, |
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db=self.db, |
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) |
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self.log.debug("K8S Juju connector initialized") |
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# TODO: Remove these commented lines: |
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# self.authenticated = False |
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# self.models = {} |
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# self.juju_secret = "" |
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"""Initialization""" |
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async def init_env( |
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self, |
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k8s_creds: str, |
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namespace: str = "kube-system", |
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reuse_cluster_uuid: str = None, |
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) -> (str, bool): |
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""" |
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It prepares a given K8s cluster environment to run Juju bundles. |
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:param k8s_creds: credentials to access a given K8s cluster, i.e. a valid |
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'.kube/config' |
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:param namespace: optional namespace to be used for juju. By default, |
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'kube-system' will be used |
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:param reuse_cluster_uuid: existing cluster uuid for reuse |
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:return: uuid of the K8s cluster and True if connector has installed some |
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software in the cluster |
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(on error, an exception will be raised) |
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""" |
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# """Bootstrapping |
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# Bootstrapping cannot be done, by design, through the API. We need to |
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# use the CLI tools. |
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# """ |
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# """ |
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# WIP: Workflow |
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# 1. Has the environment already been bootstrapped? |
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# - Check the database to see if we have a record for this env |
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# 2. If this is a new env, create it |
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# - Add the k8s cloud to Juju |
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# - Bootstrap |
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# - Record it in the database |
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# 3. Connect to the Juju controller for this cloud |
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|
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# """ |
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# cluster_uuid = reuse_cluster_uuid |
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# if not cluster_uuid: |
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# cluster_uuid = str(uuid4()) |
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|
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################################################## |
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# TODO: Pull info from db based on the namespace # |
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################################################## |
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|
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################################################### |
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# TODO: Make it idempotent, calling add-k8s and # |
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# bootstrap whenever reuse_cluster_uuid is passed # |
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# as parameter # |
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# `init_env` is called to initialize the K8s # |
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# cluster for juju. If this initialization fails, # |
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# it can be called again by LCM with the param # |
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# reuse_cluster_uuid, e.g. to try to fix it. # |
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################################################### |
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# This is a new cluster, so bootstrap it |
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cluster_uuid = reuse_cluster_uuid or str(uuid.uuid4()) |
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# Is a local k8s cluster? |
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# localk8s = self.is_local_k8s(k8s_creds) |
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# If the k8s is external, the juju controller needs a loadbalancer |
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# loadbalancer = False if localk8s else True |
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# Name the new k8s cloud |
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# k8s_cloud = "k8s-{}".format(cluster_uuid) |
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# self.log.debug("Adding k8s cloud {}".format(k8s_cloud)) |
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# await self.add_k8s(k8s_cloud, k8s_creds) |
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|
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# Bootstrap Juju controller |
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# self.log.debug("Bootstrapping...") |
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# await self.bootstrap(k8s_cloud, cluster_uuid, loadbalancer) |
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# self.log.debug("Bootstrap done.") |
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|
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# Get the controller information |
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# Parse ~/.local/share/juju/controllers.yaml |
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# controllers.testing.api-endpoints|ca-cert|uuid |
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# self.log.debug("Getting controller endpoints") |
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# with open(os.path.expanduser("~/.local/share/juju/controllers.yaml")) as f: |
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# controllers = yaml.load(f, Loader=yaml.Loader) |
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# controller = controllers["controllers"][cluster_uuid] |
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# endpoints = controller["api-endpoints"] |
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# juju_endpoint = endpoints[0] |
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# juju_ca_cert = controller["ca-cert"] |
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|
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# Parse ~/.local/share/juju/accounts |
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# controllers.testing.user|password |
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# self.log.debug("Getting accounts") |
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# with open(os.path.expanduser("~/.local/share/juju/accounts.yaml")) as f: |
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# controllers = yaml.load(f, Loader=yaml.Loader) |
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# controller = controllers["controllers"][cluster_uuid] |
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# juju_user = controller["user"] |
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# juju_secret = controller["password"] |
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|
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# config = { |
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# "endpoint": juju_endpoint, |
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# "username": juju_user, |
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# "secret": juju_secret, |
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# "cacert": juju_ca_cert, |
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# "loadbalancer": loadbalancer, |
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# } |
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|
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# Store the cluster configuration so it |
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# can be used for subsequent calls |
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kubecfg = tempfile.NamedTemporaryFile() |
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with open(kubecfg.name, "w") as kubecfg_file: |
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kubecfg_file.write(k8s_creds) |
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kubectl = Kubectl(config_file=kubecfg.name) |
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|
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# CREATING RESOURCES IN K8S |
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rbac_id = generate_rbac_id() |
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metadata_name = "{}-{}".format(RBAC_STACK_PREFIX, rbac_id) |
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labels = {RBAC_STACK_PREFIX: rbac_id} |
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|
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# Create cleanup dictionary to clean up created resources |
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# if it fails in the middle of the process |
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cleanup_data = [] |
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try: |
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self._create_cluster_role( |
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kubectl, |
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name=metadata_name, |
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labels=labels, |
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) |
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cleanup_data.append( |
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{ |
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"delete": self._delete_cluster_role, |
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"args": (kubectl, metadata_name), |
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} |
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) |
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|
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self._create_service_account( |
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kubectl, |
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name=metadata_name, |
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labels=labels, |
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) |
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cleanup_data.append( |
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{ |
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"delete": self._delete_service_account, |
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"args": (kubectl, metadata_name), |
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} |
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) |
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|
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self._create_cluster_role_binding( |
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kubectl, |
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name=metadata_name, |
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labels=labels, |
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) |
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cleanup_data.append( |
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{ |
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"delete": self._delete_service_account, |
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"args": (kubectl, metadata_name), |
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} |
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) |
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token, client_cert_data = await self._get_secret_data( |
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kubectl, |
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metadata_name, |
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) |
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|
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default_storage_class = kubectl.get_default_storage_class() |
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await self.libjuju.add_k8s( |
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name=cluster_uuid, |
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rbac_id=rbac_id, |
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token=token, |
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client_cert_data=client_cert_data, |
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configuration=kubectl.configuration, |
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storage_class=default_storage_class, |
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credential_name=self._get_credential_name(cluster_uuid), |
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) |
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# self.log.debug("Setting config") |
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# await self.set_config(cluster_uuid, config) |
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|
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# Test connection |
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# controller = await self.get_controller(cluster_uuid) |
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# await controller.disconnect() |
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|
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# TODO: Remove these commented lines |
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# raise Exception("EOL") |
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# self.juju_public_key = None |
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# Login to the k8s cluster |
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# if not self.authenticated: |
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# await self.login(cluster_uuid) |
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|
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# We're creating a new cluster |
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# print("Getting model {}".format(self.get_namespace(cluster_uuid), |
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# cluster_uuid=cluster_uuid)) |
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# model = await self.get_model( |
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# self.get_namespace(cluster_uuid), |
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# cluster_uuid=cluster_uuid |
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# ) |
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|
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# Disconnect from the model |
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# if model and model.is_connected(): |
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# await model.disconnect() |
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|
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return cluster_uuid, True |
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except Exception as e: |
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self.log.error("Error initializing k8scluster: {}".format(e)) |
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if len(cleanup_data) > 0: |
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self.log.debug("Cleaning up created resources in k8s cluster...") |
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for item in cleanup_data: |
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delete_function = item["delete"] |
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delete_args = item["args"] |
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delete_function(*delete_args) |
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self.log.debug("Cleanup finished") |
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raise e |
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|
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"""Repo Management""" |
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|
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async def repo_add( |
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self, |
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name: str, |
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url: str, |
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_type: str = "charm", |
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): |
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raise MethodNotImplemented() |
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|
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1 |
async def repo_list(self): |
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raise MethodNotImplemented() |
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|
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1 |
async def repo_remove( |
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self, |
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name: str, |
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): |
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raise MethodNotImplemented() |
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|
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async def synchronize_repos(self, cluster_uuid: str, name: str): |
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""" |
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Returns None as currently add_repo is not implemented |
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""" |
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return None |
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|
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"""Reset""" |
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|
| 369 |
1 |
async def reset( |
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self, cluster_uuid: str, force: bool = False, uninstall_sw: bool = False |
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) -> bool: |
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"""Reset a cluster |
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|
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Resets the Kubernetes cluster by removing the model that represents it. |
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|
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:param cluster_uuid str: The UUID of the cluster to reset |
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:return: Returns True if successful or raises an exception. |
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""" |
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|
| 380 |
1 |
try: |
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# Remove k8scluster from database |
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# self.log.debug("[reset] Removing k8scluster from juju database") |
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# juju_db = self.db.get_one("admin", {"_id": "juju"}) |
| 384 |
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|
| 385 |
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# for k in juju_db["k8sclusters"]: |
| 386 |
|
# if k["_id"] == cluster_uuid: |
| 387 |
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# juju_db["k8sclusters"].remove(k) |
| 388 |
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# self.db.set_one( |
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# table="admin", |
| 390 |
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# q_filter={"_id": "juju"}, |
| 391 |
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# update_dict={"k8sclusters": juju_db["k8sclusters"]}, |
| 392 |
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# ) |
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# break |
| 394 |
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|
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# Destroy the controller (via CLI) |
| 396 |
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# self.log.debug("[reset] Destroying controller") |
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# await self.destroy_controller(cluster_uuid) |
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1 |
self.log.debug("[reset] Removing k8s cloud") |
| 399 |
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# k8s_cloud = "k8s-{}".format(cluster_uuid) |
| 400 |
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# await self.remove_cloud(k8s_cloud) |
| 401 |
|
|
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1 |
cloud_creds = await self.libjuju.get_cloud_credentials( |
| 403 |
|
cluster_uuid, |
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self._get_credential_name(cluster_uuid), |
| 405 |
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) |
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|
|
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1 |
await self.libjuju.remove_cloud(cluster_uuid) |
| 408 |
|
|
| 409 |
1 |
kubecfg = self.get_credentials(cluster_uuid=cluster_uuid) |
| 410 |
|
|
| 411 |
1 |
kubecfg_file = tempfile.NamedTemporaryFile() |
| 412 |
1 |
with open(kubecfg_file.name, "w") as f: |
| 413 |
1 |
f.write(kubecfg) |
| 414 |
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kubectl = Kubectl(config_file=kubecfg_file.name) |
| 415 |
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|
| 416 |
1 |
delete_functions = [ |
| 417 |
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self._delete_cluster_role_binding, |
| 418 |
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self._delete_service_account, |
| 419 |
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self._delete_cluster_role, |
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] |
| 421 |
|
|
| 422 |
1 |
credential_attrs = cloud_creds[0].result["attrs"] |
| 423 |
1 |
if RBAC_LABEL_KEY_NAME in credential_attrs: |
| 424 |
1 |
rbac_id = credential_attrs[RBAC_LABEL_KEY_NAME] |
| 425 |
1 |
metadata_name = "{}-{}".format(RBAC_STACK_PREFIX, rbac_id) |
| 426 |
1 |
delete_args = (kubectl, metadata_name) |
| 427 |
1 |
for delete_func in delete_functions: |
| 428 |
1 |
try: |
| 429 |
1 |
delete_func(*delete_args) |
| 430 |
0 |
except Exception as e: |
| 431 |
0 |
self.log.warning("Cannot remove resource in K8s {}".format(e)) |
| 432 |
|
|
| 433 |
1 |
except Exception as e: |
| 434 |
1 |
self.log.debug("Caught exception during reset: {}".format(e)) |
| 435 |
1 |
raise e |
| 436 |
1 |
return True |
| 437 |
|
# TODO: Remove these commented lines |
| 438 |
|
# if not self.authenticated: |
| 439 |
|
# await self.login(cluster_uuid) |
| 440 |
|
|
| 441 |
|
# if self.controller.is_connected(): |
| 442 |
|
# # Destroy the model |
| 443 |
|
# namespace = self.get_namespace(cluster_uuid) |
| 444 |
|
# if await self.has_model(namespace): |
| 445 |
|
# self.log.debug("[reset] Destroying model") |
| 446 |
|
# await self.controller.destroy_model(namespace, destroy_storage=True) |
| 447 |
|
|
| 448 |
|
# # Disconnect from the controller |
| 449 |
|
# self.log.debug("[reset] Disconnecting controller") |
| 450 |
|
# await self.logout() |
| 451 |
|
|
| 452 |
|
"""Deployment""" |
| 453 |
|
|
| 454 |
1 |
async def install( |
| 455 |
|
self, |
| 456 |
|
cluster_uuid: str, |
| 457 |
|
kdu_model: str, |
| 458 |
|
kdu_instance: str, |
| 459 |
|
atomic: bool = True, |
| 460 |
|
timeout: float = 1800, |
| 461 |
|
params: dict = None, |
| 462 |
|
db_dict: dict = None, |
| 463 |
|
kdu_name: str = None, |
| 464 |
|
namespace: str = None, |
| 465 |
|
) -> bool: |
| 466 |
|
"""Install a bundle |
| 467 |
|
|
| 468 |
|
:param cluster_uuid str: The UUID of the cluster to install to |
| 469 |
|
:param kdu_model str: The name or path of a bundle to install |
| 470 |
|
:param kdu_instance: Kdu instance name |
| 471 |
|
:param atomic bool: If set, waits until the model is active and resets |
| 472 |
|
the cluster on failure. |
| 473 |
|
:param timeout int: The time, in seconds, to wait for the install |
| 474 |
|
to finish |
| 475 |
|
:param params dict: Key-value pairs of instantiation parameters |
| 476 |
|
:param kdu_name: Name of the KDU instance to be installed |
| 477 |
|
:param namespace: K8s namespace to use for the KDU instance |
| 478 |
|
|
| 479 |
|
:return: If successful, returns ? |
| 480 |
|
""" |
| 481 |
1 |
bundle = kdu_model |
| 482 |
|
|
| 483 |
|
# controller = await self.get_controller(cluster_uuid) |
| 484 |
|
|
| 485 |
|
## |
| 486 |
|
# Get or create the model, based on the NS |
| 487 |
|
# uuid. |
| 488 |
|
|
| 489 |
1 |
if not db_dict: |
| 490 |
1 |
raise K8sException("db_dict must be set") |
| 491 |
1 |
if not bundle: |
| 492 |
1 |
raise K8sException("bundle must be set") |
| 493 |
|
|
| 494 |
1 |
if bundle.startswith("cs:"): |
| 495 |
1 |
pass |
| 496 |
1 |
elif bundle.startswith("http"): |
| 497 |
|
# Download the file |
| 498 |
1 |
pass |
| 499 |
|
else: |
| 500 |
1 |
new_workdir = kdu_model.strip(kdu_model.split("/")[-1]) |
| 501 |
1 |
os.chdir(new_workdir) |
| 502 |
1 |
bundle = "local:{}".format(kdu_model) |
| 503 |
|
|
| 504 |
1 |
self.log.debug("Checking for model named {}".format(kdu_instance)) |
| 505 |
|
|
| 506 |
|
# Create the new model |
| 507 |
1 |
self.log.debug("Adding model: {}".format(kdu_instance)) |
| 508 |
1 |
await self.libjuju.add_model( |
| 509 |
|
model_name=kdu_instance, |
| 510 |
|
cloud_name=cluster_uuid, |
| 511 |
|
credential_name=self._get_credential_name(cluster_uuid), |
| 512 |
|
) |
| 513 |
|
|
| 514 |
|
# if model: |
| 515 |
|
# TODO: Instantiation parameters |
| 516 |
|
|
| 517 |
|
""" |
| 518 |
|
"Juju bundle that models the KDU, in any of the following ways: |
| 519 |
|
- <juju-repo>/<juju-bundle> |
| 520 |
|
- <juju-bundle folder under k8s_models folder in the package> |
| 521 |
|
- <juju-bundle tgz file (w/ or w/o extension) under k8s_models folder |
| 522 |
|
in the package> |
| 523 |
|
- <URL_where_to_fetch_juju_bundle> |
| 524 |
|
""" |
| 525 |
1 |
try: |
| 526 |
1 |
previous_workdir = os.getcwd() |
| 527 |
1 |
except FileNotFoundError: |
| 528 |
1 |
previous_workdir = "/app/storage" |
| 529 |
|
|
| 530 |
1 |
self.log.debug("[install] deploying {}".format(bundle)) |
| 531 |
1 |
await self.libjuju.deploy( |
| 532 |
|
bundle, model_name=kdu_instance, wait=atomic, timeout=timeout |
| 533 |
|
) |
| 534 |
|
|
| 535 |
|
# Get the application |
| 536 |
|
# if atomic: |
| 537 |
|
# # applications = model.applications |
| 538 |
|
# self.log.debug("[install] Applications: {}".format(model.applications)) |
| 539 |
|
# for name in model.applications: |
| 540 |
|
# self.log.debug("[install] Waiting for {} to settle".format(name)) |
| 541 |
|
# application = model.applications[name] |
| 542 |
|
# try: |
| 543 |
|
# # It's not enough to wait for all units to be active; |
| 544 |
|
# # the application status needs to be active as well. |
| 545 |
|
# self.log.debug("Waiting for all units to be active...") |
| 546 |
|
# await model.block_until( |
| 547 |
|
# lambda: all( |
| 548 |
|
# unit.agent_status == "idle" |
| 549 |
|
# and application.status in ["active", "unknown"] |
| 550 |
|
# and unit.workload_status in ["active", "unknown"] |
| 551 |
|
# for unit in application.units |
| 552 |
|
# ), |
| 553 |
|
# timeout=timeout, |
| 554 |
|
# ) |
| 555 |
|
# self.log.debug("All units active.") |
| 556 |
|
|
| 557 |
|
# # TODO use asyncio.TimeoutError |
| 558 |
|
# except concurrent.futures._base.TimeoutError: |
| 559 |
|
# os.chdir(previous_workdir) |
| 560 |
|
# self.log.debug("[install] Timeout exceeded; resetting cluster") |
| 561 |
|
# await self.reset(cluster_uuid) |
| 562 |
|
# return False |
| 563 |
|
|
| 564 |
|
# Wait for the application to be active |
| 565 |
|
# if model.is_connected(): |
| 566 |
|
# self.log.debug("[install] Disconnecting model") |
| 567 |
|
# await model.disconnect() |
| 568 |
|
# await controller.disconnect() |
| 569 |
1 |
os.chdir(previous_workdir) |
| 570 |
1 |
return True |
| 571 |
|
|
| 572 |
1 |
async def instances_list(self, cluster_uuid: str) -> list: |
| 573 |
|
""" |
| 574 |
|
returns a list of deployed releases in a cluster |
| 575 |
|
|
| 576 |
|
:param cluster_uuid: the cluster |
| 577 |
|
:return: |
| 578 |
|
""" |
| 579 |
1 |
return [] |
| 580 |
|
|
| 581 |
1 |
async def upgrade( |
| 582 |
|
self, |
| 583 |
|
cluster_uuid: str, |
| 584 |
|
kdu_instance: str, |
| 585 |
|
kdu_model: str = None, |
| 586 |
|
params: dict = None, |
| 587 |
|
) -> str: |
| 588 |
|
"""Upgrade a model |
| 589 |
|
|
| 590 |
|
:param cluster_uuid str: The UUID of the cluster to upgrade |
| 591 |
|
:param kdu_instance str: The unique name of the KDU instance |
| 592 |
|
:param kdu_model str: The name or path of the bundle to upgrade to |
| 593 |
|
:param params dict: Key-value pairs of instantiation parameters |
| 594 |
|
|
| 595 |
|
:return: If successful, reference to the new revision number of the |
| 596 |
|
KDU instance. |
| 597 |
|
""" |
| 598 |
|
|
| 599 |
|
# TODO: Loop through the bundle and upgrade each charm individually |
| 600 |
|
|
| 601 |
|
""" |
| 602 |
|
The API doesn't have a concept of bundle upgrades, because there are |
| 603 |
|
many possible changes: charm revision, disk, number of units, etc. |
| 604 |
|
|
| 605 |
|
As such, we are only supporting a limited subset of upgrades. We'll |
| 606 |
|
upgrade the charm revision but leave storage and scale untouched. |
| 607 |
|
|
| 608 |
|
Scale changes should happen through OSM constructs, and changes to |
| 609 |
|
storage would require a redeployment of the service, at least in this |
| 610 |
|
initial release. |
| 611 |
|
""" |
| 612 |
1 |
raise MethodNotImplemented() |
| 613 |
|
# TODO: Remove these commented lines |
| 614 |
|
|
| 615 |
|
# model = await self.get_model(namespace, cluster_uuid=cluster_uuid) |
| 616 |
|
|
| 617 |
|
# model = None |
| 618 |
|
# namespace = self.get_namespace(cluster_uuid) |
| 619 |
|
# controller = await self.get_controller(cluster_uuid) |
| 620 |
|
|
| 621 |
|
# try: |
| 622 |
|
# if namespace not in await controller.list_models(): |
| 623 |
|
# raise N2VCNotFound(message="Model {} does not exist".format(namespace)) |
| 624 |
|
|
| 625 |
|
# model = await controller.get_model(namespace) |
| 626 |
|
# with open(kdu_model, "r") as f: |
| 627 |
|
# bundle = yaml.safe_load(f) |
| 628 |
|
|
| 629 |
|
# """ |
| 630 |
|
# { |
| 631 |
|
# 'description': 'Test bundle', |
| 632 |
|
# 'bundle': 'kubernetes', |
| 633 |
|
# 'applications': { |
| 634 |
|
# 'mariadb-k8s': { |
| 635 |
|
# 'charm': 'cs:~charmed-osm/mariadb-k8s-20', |
| 636 |
|
# 'scale': 1, |
| 637 |
|
# 'options': { |
| 638 |
|
# 'password': 'manopw', |
| 639 |
|
# 'root_password': 'osm4u', |
| 640 |
|
# 'user': 'mano' |
| 641 |
|
# }, |
| 642 |
|
# 'series': 'kubernetes' |
| 643 |
|
# } |
| 644 |
|
# } |
| 645 |
|
# } |
| 646 |
|
# """ |
| 647 |
|
# # TODO: This should be returned in an agreed-upon format |
| 648 |
|
# for name in bundle["applications"]: |
| 649 |
|
# self.log.debug(model.applications) |
| 650 |
|
# application = model.applications[name] |
| 651 |
|
# self.log.debug(application) |
| 652 |
|
|
| 653 |
|
# path = bundle["applications"][name]["charm"] |
| 654 |
|
|
| 655 |
|
# try: |
| 656 |
|
# await application.upgrade_charm(switch=path) |
| 657 |
|
# except juju.errors.JujuError as ex: |
| 658 |
|
# if "already running charm" in str(ex): |
| 659 |
|
# # We're already running this version |
| 660 |
|
# pass |
| 661 |
|
# finally: |
| 662 |
|
# if model: |
| 663 |
|
# await model.disconnect() |
| 664 |
|
# await controller.disconnect() |
| 665 |
|
# return True |
| 666 |
|
|
| 667 |
|
"""Rollback""" |
| 668 |
|
|
| 669 |
1 |
async def rollback( |
| 670 |
|
self, |
| 671 |
|
cluster_uuid: str, |
| 672 |
|
kdu_instance: str, |
| 673 |
|
revision: int = 0, |
| 674 |
|
) -> str: |
| 675 |
|
"""Rollback a model |
| 676 |
|
|
| 677 |
|
:param cluster_uuid str: The UUID of the cluster to rollback |
| 678 |
|
:param kdu_instance str: The unique name of the KDU instance |
| 679 |
|
:param revision int: The revision to revert to. If omitted, rolls back |
| 680 |
|
the previous upgrade. |
| 681 |
|
|
| 682 |
|
:return: If successful, returns the revision of active KDU instance, |
| 683 |
|
or raises an exception |
| 684 |
|
""" |
| 685 |
1 |
raise MethodNotImplemented() |
| 686 |
|
|
| 687 |
|
"""Deletion""" |
| 688 |
|
|
| 689 |
1 |
async def uninstall(self, cluster_uuid: str, kdu_instance: str) -> bool: |
| 690 |
|
"""Uninstall a KDU instance |
| 691 |
|
|
| 692 |
|
:param cluster_uuid str: The UUID of the cluster |
| 693 |
|
:param kdu_instance str: The unique name of the KDU instance |
| 694 |
|
|
| 695 |
|
:return: Returns True if successful, or raises an exception |
| 696 |
|
""" |
| 697 |
|
|
| 698 |
|
# controller = await self.get_controller(cluster_uuid) |
| 699 |
|
|
| 700 |
1 |
self.log.debug("[uninstall] Destroying model") |
| 701 |
|
|
| 702 |
1 |
await self.libjuju.destroy_model(kdu_instance, total_timeout=3600) |
| 703 |
|
|
| 704 |
|
# self.log.debug("[uninstall] Model destroyed and disconnecting") |
| 705 |
|
# await controller.disconnect() |
| 706 |
|
|
| 707 |
1 |
return True |
| 708 |
|
# TODO: Remove these commented lines |
| 709 |
|
# if not self.authenticated: |
| 710 |
|
# self.log.debug("[uninstall] Connecting to controller") |
| 711 |
|
# await self.login(cluster_uuid) |
| 712 |
|
|
| 713 |
1 |
async def exec_primitive( |
| 714 |
|
self, |
| 715 |
|
cluster_uuid: str = None, |
| 716 |
|
kdu_instance: str = None, |
| 717 |
|
primitive_name: str = None, |
| 718 |
|
timeout: float = 300, |
| 719 |
|
params: dict = None, |
| 720 |
|
db_dict: dict = None, |
| 721 |
|
) -> str: |
| 722 |
|
"""Exec primitive (Juju action) |
| 723 |
|
|
| 724 |
|
:param cluster_uuid str: The UUID of the cluster |
| 725 |
|
:param kdu_instance str: The unique name of the KDU instance |
| 726 |
|
:param primitive_name: Name of action that will be executed |
| 727 |
|
:param timeout: Timeout for action execution |
| 728 |
|
:param params: Dictionary of all the parameters needed for the action |
| 729 |
|
:db_dict: Dictionary for any additional data |
| 730 |
|
|
| 731 |
|
:return: Returns the output of the action |
| 732 |
|
""" |
| 733 |
|
|
| 734 |
|
# controller = await self.get_controller(cluster_uuid) |
| 735 |
|
|
| 736 |
1 |
if not params or "application-name" not in params: |
| 737 |
1 |
raise K8sException( |
| 738 |
|
"Missing application-name argument, \ |
| 739 |
|
argument needed for K8s actions" |
| 740 |
|
) |
| 741 |
1 |
try: |
| 742 |
1 |
self.log.debug( |
| 743 |
|
"[exec_primitive] Getting model " |
| 744 |
|
"kdu_instance: {}".format(kdu_instance) |
| 745 |
|
) |
| 746 |
1 |
application_name = params["application-name"] |
| 747 |
1 |
actions = await self.libjuju.get_actions(application_name, kdu_instance) |
| 748 |
1 |
if primitive_name not in actions: |
| 749 |
1 |
raise K8sException("Primitive {} not found".format(primitive_name)) |
| 750 |
1 |
output, status = await self.libjuju.execute_action( |
| 751 |
|
application_name, kdu_instance, primitive_name, **params |
| 752 |
|
) |
| 753 |
|
# model = await self.get_model(kdu_instance, controller=controller) |
| 754 |
|
|
| 755 |
|
# application_name = params["application-name"] |
| 756 |
|
# application = model.applications[application_name] |
| 757 |
|
|
| 758 |
|
# actions = await application.get_actions() |
| 759 |
|
# if primitive_name not in actions: |
| 760 |
|
# raise K8sException("Primitive {} not found".format(primitive_name)) |
| 761 |
|
|
| 762 |
|
# unit = None |
| 763 |
|
# for u in application.units: |
| 764 |
|
# if await u.is_leader_from_status(): |
| 765 |
|
# unit = u |
| 766 |
|
# break |
| 767 |
|
|
| 768 |
|
# if unit is None: |
| 769 |
|
# raise K8sException("No leader unit found to execute action") |
| 770 |
|
|
| 771 |
|
# self.log.debug("[exec_primitive] Running action: {}".format(primitive_name)) |
| 772 |
|
# action = await unit.run_action(primitive_name, **params) |
| 773 |
|
|
| 774 |
|
# output = await model.get_action_output(action_uuid=action.entity_id) |
| 775 |
|
# status = await model.get_action_status(uuid_or_prefix=action.entity_id) |
| 776 |
|
|
| 777 |
|
# status = ( |
| 778 |
|
# status[action.entity_id] if action.entity_id in status else "failed" |
| 779 |
|
# ) |
| 780 |
|
|
| 781 |
1 |
if status != "completed": |
| 782 |
1 |
raise K8sException( |
| 783 |
|
"status is not completed: {} output: {}".format(status, output) |
| 784 |
|
) |
| 785 |
|
|
| 786 |
1 |
return output |
| 787 |
|
|
| 788 |
1 |
except Exception as e: |
| 789 |
1 |
error_msg = "Error executing primitive {}: {}".format(primitive_name, e) |
| 790 |
1 |
self.log.error(error_msg) |
| 791 |
1 |
raise K8sException(message=error_msg) |
| 792 |
|
# finally: |
| 793 |
|
# await controller.disconnect() |
| 794 |
|
# TODO: Remove these commented lines: |
| 795 |
|
# if not self.authenticated: |
| 796 |
|
# self.log.debug("[exec_primitive] Connecting to controller") |
| 797 |
|
# await self.login(cluster_uuid) |
| 798 |
|
|
| 799 |
|
"""Introspection""" |
| 800 |
|
|
| 801 |
1 |
async def inspect_kdu( |
| 802 |
|
self, |
| 803 |
|
kdu_model: str, |
| 804 |
|
) -> dict: |
| 805 |
|
"""Inspect a KDU |
| 806 |
|
|
| 807 |
|
Inspects a bundle and returns a dictionary of config parameters and |
| 808 |
|
their default values. |
| 809 |
|
|
| 810 |
|
:param kdu_model str: The name or path of the bundle to inspect. |
| 811 |
|
|
| 812 |
|
:return: If successful, returns a dictionary of available parameters |
| 813 |
|
and their default values. |
| 814 |
|
""" |
| 815 |
|
|
| 816 |
1 |
kdu = {} |
| 817 |
1 |
if not os.path.exists(kdu_model): |
| 818 |
1 |
raise K8sException("file {} not found".format(kdu_model)) |
| 819 |
|
|
| 820 |
1 |
with open(kdu_model, "r") as f: |
| 821 |
1 |
bundle = yaml.safe_load(f.read()) |
| 822 |
|
|
| 823 |
|
""" |
| 824 |
|
{ |
| 825 |
|
'description': 'Test bundle', |
| 826 |
|
'bundle': 'kubernetes', |
| 827 |
|
'applications': { |
| 828 |
|
'mariadb-k8s': { |
| 829 |
|
'charm': 'cs:~charmed-osm/mariadb-k8s-20', |
| 830 |
|
'scale': 1, |
| 831 |
|
'options': { |
| 832 |
|
'password': 'manopw', |
| 833 |
|
'root_password': 'osm4u', |
| 834 |
|
'user': 'mano' |
| 835 |
|
}, |
| 836 |
|
'series': 'kubernetes' |
| 837 |
|
} |
| 838 |
|
} |
| 839 |
|
} |
| 840 |
|
""" |
| 841 |
|
# TODO: This should be returned in an agreed-upon format |
| 842 |
1 |
kdu = bundle["applications"] |
| 843 |
|
|
| 844 |
1 |
return kdu |
| 845 |
|
|
| 846 |
1 |
async def help_kdu( |
| 847 |
|
self, |
| 848 |
|
kdu_model: str, |
| 849 |
|
) -> str: |
| 850 |
|
"""View the README |
| 851 |
|
|
| 852 |
|
If available, returns the README of the bundle. |
| 853 |
|
|
| 854 |
|
:param kdu_model str: The name or path of a bundle |
| 855 |
|
|
| 856 |
|
:return: If found, returns the contents of the README. |
| 857 |
|
""" |
| 858 |
1 |
readme = None |
| 859 |
|
|
| 860 |
1 |
files = ["README", "README.txt", "README.md"] |
| 861 |
1 |
path = os.path.dirname(kdu_model) |
| 862 |
1 |
for file in os.listdir(path): |
| 863 |
1 |
if file in files: |
| 864 |
1 |
with open(file, "r") as f: |
| 865 |
1 |
readme = f.read() |
| 866 |
1 |
break |
| 867 |
|
|
| 868 |
1 |
return readme |
| 869 |
|
|
| 870 |
1 |
async def status_kdu( |
| 871 |
|
self, |
| 872 |
|
cluster_uuid: str, |
| 873 |
|
kdu_instance: str, |
| 874 |
|
) -> dict: |
| 875 |
|
"""Get the status of the KDU |
| 876 |
|
|
| 877 |
|
Get the current status of the KDU instance. |
| 878 |
|
|
| 879 |
|
:param cluster_uuid str: The UUID of the cluster |
| 880 |
|
:param kdu_instance str: The unique id of the KDU instance |
| 881 |
|
|
| 882 |
|
:return: Returns a dictionary containing namespace, state, resources, |
| 883 |
|
and deployment_time. |
| 884 |
|
""" |
| 885 |
1 |
status = {} |
| 886 |
|
# controller = await self.get_controller(cluster_uuid) |
| 887 |
|
# model = await self.get_model(kdu_instance, controller=controller) |
| 888 |
|
|
| 889 |
|
# model_status = await model.get_status() |
| 890 |
|
# status = model_status.applications |
| 891 |
1 |
model_status = await self.libjuju.get_model_status(kdu_instance) |
| 892 |
1 |
for name in model_status.applications: |
| 893 |
1 |
application = model_status.applications[name] |
| 894 |
1 |
status[name] = {"status": application["status"]["status"]} |
| 895 |
|
|
| 896 |
|
# await model.disconnect() |
| 897 |
|
# await controller.disconnect() |
| 898 |
|
|
| 899 |
1 |
return status |
| 900 |
|
|
| 901 |
1 |
async def get_services( |
| 902 |
|
self, cluster_uuid: str, kdu_instance: str, namespace: str |
| 903 |
|
) -> list: |
| 904 |
|
"""Return a list of services of a kdu_instance""" |
| 905 |
|
|
| 906 |
1 |
credentials = self.get_credentials(cluster_uuid=cluster_uuid) |
| 907 |
|
|
| 908 |
|
# config_path = "/tmp/{}".format(cluster_uuid) |
| 909 |
|
# config_file = "{}/config".format(config_path) |
| 910 |
|
|
| 911 |
|
# if not os.path.exists(config_path): |
| 912 |
|
# os.makedirs(config_path) |
| 913 |
|
# with open(config_file, "w") as f: |
| 914 |
|
# f.write(credentials) |
| 915 |
|
|
| 916 |
1 |
kubecfg = tempfile.NamedTemporaryFile() |
| 917 |
1 |
with open(kubecfg.name, "w") as kubecfg_file: |
| 918 |
1 |
kubecfg_file.write(credentials) |
| 919 |
1 |
kubectl = Kubectl(config_file=kubecfg.name) |
| 920 |
|
|
| 921 |
1 |
return kubectl.get_services( |
| 922 |
|
field_selector="metadata.namespace={}".format(kdu_instance) |
| 923 |
|
) |
| 924 |
|
|
| 925 |
1 |
async def get_service( |
| 926 |
|
self, cluster_uuid: str, service_name: str, namespace: str |
| 927 |
|
) -> object: |
| 928 |
|
"""Return data for a specific service inside a namespace""" |
| 929 |
|
|
| 930 |
1 |
credentials = self.get_credentials(cluster_uuid=cluster_uuid) |
| 931 |
|
|
| 932 |
|
# config_path = "/tmp/{}".format(cluster_uuid) |
| 933 |
|
# config_file = "{}/config".format(config_path) |
| 934 |
|
|
| 935 |
|
# if not os.path.exists(config_path): |
| 936 |
|
# os.makedirs(config_path) |
| 937 |
|
# with open(config_file, "w") as f: |
| 938 |
|
# f.write(credentials) |
| 939 |
|
|
| 940 |
1 |
kubecfg = tempfile.NamedTemporaryFile() |
| 941 |
1 |
with open(kubecfg.name, "w") as kubecfg_file: |
| 942 |
1 |
kubecfg_file.write(credentials) |
| 943 |
1 |
kubectl = Kubectl(config_file=kubecfg.name) |
| 944 |
|
|
| 945 |
1 |
return kubectl.get_services( |
| 946 |
|
field_selector="metadata.name={},metadata.namespace={}".format( |
| 947 |
|
service_name, namespace |
| 948 |
|
) |
| 949 |
|
)[0] |
| 950 |
|
|
| 951 |
|
# Private methods |
| 952 |
|
# async def add_k8s(self, cloud_name: str, credentials: str,) -> bool: |
| 953 |
|
# """Add a k8s cloud to Juju |
| 954 |
|
|
| 955 |
|
# Adds a Kubernetes cloud to Juju, so it can be bootstrapped with a |
| 956 |
|
# Juju Controller. |
| 957 |
|
|
| 958 |
|
# :param cloud_name str: The name of the cloud to add. |
| 959 |
|
# :param credentials dict: A dictionary representing the output of |
| 960 |
|
# `kubectl config view --raw`. |
| 961 |
|
|
| 962 |
|
# :returns: True if successful, otherwise raises an exception. |
| 963 |
|
# """ |
| 964 |
|
|
| 965 |
|
# cmd = [self.juju_command, "add-k8s", "--local", cloud_name] |
| 966 |
|
# self.log.debug(cmd) |
| 967 |
|
|
| 968 |
|
# process = await asyncio.create_subprocess_exec( |
| 969 |
|
# *cmd, |
| 970 |
|
# stdout=asyncio.subprocess.PIPE, |
| 971 |
|
# stderr=asyncio.subprocess.PIPE, |
| 972 |
|
# stdin=asyncio.subprocess.PIPE, |
| 973 |
|
# ) |
| 974 |
|
|
| 975 |
|
# # Feed the process the credentials |
| 976 |
|
# process.stdin.write(credentials.encode("utf-8")) |
| 977 |
|
# await process.stdin.drain() |
| 978 |
|
# process.stdin.close() |
| 979 |
|
|
| 980 |
|
# _stdout, stderr = await process.communicate() |
| 981 |
|
|
| 982 |
|
# return_code = process.returncode |
| 983 |
|
|
| 984 |
|
# self.log.debug("add-k8s return code: {}".format(return_code)) |
| 985 |
|
|
| 986 |
|
# if return_code > 0: |
| 987 |
|
# raise Exception(stderr) |
| 988 |
|
|
| 989 |
|
# return True |
| 990 |
|
|
| 991 |
|
# async def add_model( |
| 992 |
|
# self, model_name: str, cluster_uuid: str, controller: Controller |
| 993 |
|
# ) -> Model: |
| 994 |
|
# """Adds a model to the controller |
| 995 |
|
|
| 996 |
|
# Adds a new model to the Juju controller |
| 997 |
|
|
| 998 |
|
# :param model_name str: The name of the model to add. |
| 999 |
|
# :param cluster_uuid str: ID of the cluster. |
| 1000 |
|
# :param controller: Controller object in which the model will be added |
| 1001 |
|
# :returns: The juju.model.Model object of the new model upon success or |
| 1002 |
|
# raises an exception. |
| 1003 |
|
# """ |
| 1004 |
|
|
| 1005 |
|
# self.log.debug( |
| 1006 |
|
# "Adding model '{}' to cluster_uuid '{}'".format(model_name, cluster_uuid) |
| 1007 |
|
# ) |
| 1008 |
|
# model = None |
| 1009 |
|
# try: |
| 1010 |
|
# if self.juju_public_key is not None: |
| 1011 |
|
# model = await controller.add_model( |
| 1012 |
|
# model_name, config={"authorized-keys": self.juju_public_key} |
| 1013 |
|
# ) |
| 1014 |
|
# else: |
| 1015 |
|
# model = await controller.add_model(model_name) |
| 1016 |
|
# except Exception as ex: |
| 1017 |
|
# self.log.debug(ex) |
| 1018 |
|
# self.log.debug("Caught exception: {}".format(ex)) |
| 1019 |
|
# pass |
| 1020 |
|
|
| 1021 |
|
# return model |
| 1022 |
|
|
| 1023 |
|
# async def bootstrap( |
| 1024 |
|
# self, cloud_name: str, cluster_uuid: str, loadbalancer: bool |
| 1025 |
|
# ) -> bool: |
| 1026 |
|
# """Bootstrap a Kubernetes controller |
| 1027 |
|
|
| 1028 |
|
# Bootstrap a Juju controller inside the Kubernetes cluster |
| 1029 |
|
|
| 1030 |
|
# :param cloud_name str: The name of the cloud. |
| 1031 |
|
# :param cluster_uuid str: The UUID of the cluster to bootstrap. |
| 1032 |
|
# :param loadbalancer bool: If the controller should use loadbalancer or not. |
| 1033 |
|
# :returns: True upon success or raises an exception. |
| 1034 |
|
# """ |
| 1035 |
|
|
| 1036 |
|
# if not loadbalancer: |
| 1037 |
|
# cmd = [self.juju_command, "bootstrap", cloud_name, cluster_uuid] |
| 1038 |
|
# else: |
| 1039 |
|
# """ |
| 1040 |
|
# For public clusters, specify that the controller service is using a |
| 1041 |
|
# LoadBalancer. |
| 1042 |
|
# """ |
| 1043 |
|
# cmd = [ |
| 1044 |
|
# self.juju_command, |
| 1045 |
|
# "bootstrap", |
| 1046 |
|
# cloud_name, |
| 1047 |
|
# cluster_uuid, |
| 1048 |
|
# "--config", |
| 1049 |
|
# "controller-service-type=loadbalancer", |
| 1050 |
|
# ] |
| 1051 |
|
|
| 1052 |
|
# self.log.debug( |
| 1053 |
|
# "Bootstrapping controller {} in cloud {}".format(cluster_uuid, cloud_name) |
| 1054 |
|
# ) |
| 1055 |
|
|
| 1056 |
|
# process = await asyncio.create_subprocess_exec( |
| 1057 |
|
# *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE, |
| 1058 |
|
# ) |
| 1059 |
|
|
| 1060 |
|
# _stdout, stderr = await process.communicate() |
| 1061 |
|
|
| 1062 |
|
# return_code = process.returncode |
| 1063 |
|
|
| 1064 |
|
# if return_code > 0: |
| 1065 |
|
# # |
| 1066 |
|
# if b"already exists" not in stderr: |
| 1067 |
|
# raise Exception(stderr) |
| 1068 |
|
|
| 1069 |
|
# return True |
| 1070 |
|
|
| 1071 |
|
# async def destroy_controller(self, cluster_uuid: str) -> bool: |
| 1072 |
|
# """Destroy a Kubernetes controller |
| 1073 |
|
|
| 1074 |
|
# Destroy an existing Kubernetes controller. |
| 1075 |
|
|
| 1076 |
|
# :param cluster_uuid str: The UUID of the cluster to bootstrap. |
| 1077 |
|
# :returns: True upon success or raises an exception. |
| 1078 |
|
# """ |
| 1079 |
|
# cmd = [ |
| 1080 |
|
# self.juju_command, |
| 1081 |
|
# "destroy-controller", |
| 1082 |
|
# "--destroy-all-models", |
| 1083 |
|
# "--destroy-storage", |
| 1084 |
|
# "-y", |
| 1085 |
|
# cluster_uuid, |
| 1086 |
|
# ] |
| 1087 |
|
|
| 1088 |
|
# process = await asyncio.create_subprocess_exec( |
| 1089 |
|
# *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE, |
| 1090 |
|
# ) |
| 1091 |
|
|
| 1092 |
|
# _stdout, stderr = await process.communicate() |
| 1093 |
|
|
| 1094 |
|
# return_code = process.returncode |
| 1095 |
|
|
| 1096 |
|
# if return_code > 0: |
| 1097 |
|
# # |
| 1098 |
|
# if "already exists" not in stderr: |
| 1099 |
|
# raise Exception(stderr) |
| 1100 |
|
|
| 1101 |
1 |
def get_credentials(self, cluster_uuid: str) -> str: |
| 1102 |
|
""" |
| 1103 |
|
Get Cluster Kubeconfig |
| 1104 |
|
""" |
| 1105 |
1 |
k8scluster = self.db.get_one( |
| 1106 |
|
"k8sclusters", q_filter={"_id": cluster_uuid}, fail_on_empty=False |
| 1107 |
|
) |
| 1108 |
|
|
| 1109 |
1 |
self.db.encrypt_decrypt_fields( |
| 1110 |
|
k8scluster.get("credentials"), |
| 1111 |
|
"decrypt", |
| 1112 |
|
["password", "secret"], |
| 1113 |
|
schema_version=k8scluster["schema_version"], |
| 1114 |
|
salt=k8scluster["_id"], |
| 1115 |
|
) |
| 1116 |
|
|
| 1117 |
1 |
return yaml.safe_dump(k8scluster.get("credentials")) |
| 1118 |
|
|
| 1119 |
1 |
def _get_credential_name(self, cluster_uuid: str) -> str: |
| 1120 |
|
""" |
| 1121 |
|
Get credential name for a k8s cloud |
| 1122 |
|
|
| 1123 |
|
We cannot use the cluster_uuid for the credential name directly, |
| 1124 |
|
because it cannot start with a number, it must start with a letter. |
| 1125 |
|
Therefore, the k8s cloud credential name will be "cred-" followed |
| 1126 |
|
by the cluster uuid. |
| 1127 |
|
|
| 1128 |
|
:param: cluster_uuid: Cluster UUID of the kubernetes cloud (=cloud_name) |
| 1129 |
|
|
| 1130 |
|
:return: Name to use for the credential name. |
| 1131 |
|
""" |
| 1132 |
1 |
return "cred-{}".format(cluster_uuid) |
| 1133 |
|
|
| 1134 |
|
# def get_config(self, cluster_uuid: str,) -> dict: |
| 1135 |
|
# """Get the cluster configuration |
| 1136 |
|
|
| 1137 |
|
# Gets the configuration of the cluster |
| 1138 |
|
|
| 1139 |
|
# :param cluster_uuid str: The UUID of the cluster. |
| 1140 |
|
# :return: A dict upon success, or raises an exception. |
| 1141 |
|
# """ |
| 1142 |
|
|
| 1143 |
|
# juju_db = self.db.get_one("admin", {"_id": "juju"}) |
| 1144 |
|
# config = None |
| 1145 |
|
# for k in juju_db["k8sclusters"]: |
| 1146 |
|
# if k["_id"] == cluster_uuid: |
| 1147 |
|
# config = k["config"] |
| 1148 |
|
# self.db.encrypt_decrypt_fields( |
| 1149 |
|
# config, |
| 1150 |
|
# "decrypt", |
| 1151 |
|
# ["secret", "cacert"], |
| 1152 |
|
# schema_version="1.1", |
| 1153 |
|
# salt=k["_id"], |
| 1154 |
|
# ) |
| 1155 |
|
# break |
| 1156 |
|
# if not config: |
| 1157 |
|
# raise Exception( |
| 1158 |
|
# "Unable to locate configuration for cluster {}".format(cluster_uuid) |
| 1159 |
|
# ) |
| 1160 |
|
# return config |
| 1161 |
|
|
| 1162 |
|
# async def get_model(self, model_name: str, controller: Controller) -> Model: |
| 1163 |
|
# """Get a model from the Juju Controller. |
| 1164 |
|
|
| 1165 |
|
# Note: Model objects returned must call disconnected() before it goes |
| 1166 |
|
# out of scope. |
| 1167 |
|
|
| 1168 |
|
# :param model_name str: The name of the model to get |
| 1169 |
|
# :param controller Controller: Controller object |
| 1170 |
|
# :return The juju.model.Model object if found, or None. |
| 1171 |
|
# """ |
| 1172 |
|
|
| 1173 |
|
# models = await controller.list_models() |
| 1174 |
|
# if model_name not in models: |
| 1175 |
|
# raise N2VCNotFound("Model {} not found".format(model_name)) |
| 1176 |
|
# self.log.debug("Found model: {}".format(model_name)) |
| 1177 |
|
# return await controller.get_model(model_name) |
| 1178 |
|
|
| 1179 |
1 |
def get_namespace( |
| 1180 |
|
self, |
| 1181 |
|
cluster_uuid: str, |
| 1182 |
|
) -> str: |
| 1183 |
|
"""Get the namespace UUID |
| 1184 |
|
Gets the namespace's unique name |
| 1185 |
|
|
| 1186 |
|
:param cluster_uuid str: The UUID of the cluster |
| 1187 |
|
:returns: The namespace UUID, or raises an exception |
| 1188 |
|
""" |
| 1189 |
|
# config = self.get_config(cluster_uuid) |
| 1190 |
|
|
| 1191 |
|
# Make sure the name is in the config |
| 1192 |
|
# if "namespace" not in config: |
| 1193 |
|
# raise Exception("Namespace not found.") |
| 1194 |
|
|
| 1195 |
|
# TODO: We want to make sure this is unique to the cluster, in case |
| 1196 |
|
# the cluster is being reused. |
| 1197 |
|
# Consider pre/appending the cluster id to the namespace string |
| 1198 |
1 |
pass |
| 1199 |
|
|
| 1200 |
|
# TODO: Remove these lines of code |
| 1201 |
|
# async def has_model(self, model_name: str) -> bool: |
| 1202 |
|
# """Check if a model exists in the controller |
| 1203 |
|
|
| 1204 |
|
# Checks to see if a model exists in the connected Juju controller. |
| 1205 |
|
|
| 1206 |
|
# :param model_name str: The name of the model |
| 1207 |
|
# :return: A boolean indicating if the model exists |
| 1208 |
|
# """ |
| 1209 |
|
# models = await self.controller.list_models() |
| 1210 |
|
|
| 1211 |
|
# if model_name in models: |
| 1212 |
|
# return True |
| 1213 |
|
# return False |
| 1214 |
|
|
| 1215 |
|
# def is_local_k8s(self, credentials: str,) -> bool: |
| 1216 |
|
# """Check if a cluster is local |
| 1217 |
|
|
| 1218 |
|
# Checks if a cluster is running in the local host |
| 1219 |
|
|
| 1220 |
|
# :param credentials dict: A dictionary containing the k8s credentials |
| 1221 |
|
# :returns: A boolean if the cluster is running locally |
| 1222 |
|
# """ |
| 1223 |
|
|
| 1224 |
|
# creds = yaml.safe_load(credentials) |
| 1225 |
|
|
| 1226 |
|
# if creds and os.getenv("OSMLCM_VCA_APIPROXY"): |
| 1227 |
|
# for cluster in creds["clusters"]: |
| 1228 |
|
# if "server" in cluster["cluster"]: |
| 1229 |
|
# if os.getenv("OSMLCM_VCA_APIPROXY") in cluster["cluster"]["server"]: |
| 1230 |
|
# return True |
| 1231 |
|
|
| 1232 |
|
# return False |
| 1233 |
|
|
| 1234 |
|
# async def get_controller(self, cluster_uuid): |
| 1235 |
|
# """Login to the Juju controller.""" |
| 1236 |
|
|
| 1237 |
|
# config = self.get_config(cluster_uuid) |
| 1238 |
|
|
| 1239 |
|
# juju_endpoint = config["endpoint"] |
| 1240 |
|
# juju_user = config["username"] |
| 1241 |
|
# juju_secret = config["secret"] |
| 1242 |
|
# juju_ca_cert = config["cacert"] |
| 1243 |
|
|
| 1244 |
|
# controller = Controller() |
| 1245 |
|
|
| 1246 |
|
# if juju_secret: |
| 1247 |
|
# self.log.debug( |
| 1248 |
|
# "Connecting to controller... ws://{} as {}".format( |
| 1249 |
|
# juju_endpoint, juju_user, |
| 1250 |
|
# ) |
| 1251 |
|
# ) |
| 1252 |
|
# try: |
| 1253 |
|
# await controller.connect( |
| 1254 |
|
# endpoint=juju_endpoint, |
| 1255 |
|
# username=juju_user, |
| 1256 |
|
# password=juju_secret, |
| 1257 |
|
# cacert=juju_ca_cert, |
| 1258 |
|
# ) |
| 1259 |
|
# self.log.debug("JujuApi: Logged into controller") |
| 1260 |
|
# return controller |
| 1261 |
|
# except Exception as ex: |
| 1262 |
|
# self.log.debug(ex) |
| 1263 |
|
# self.log.debug("Caught exception: {}".format(ex)) |
| 1264 |
|
# else: |
| 1265 |
|
# self.log.fatal("VCA credentials not configured.") |
| 1266 |
|
|
| 1267 |
|
# TODO: Remove these commented lines |
| 1268 |
|
# self.authenticated = False |
| 1269 |
|
# if self.authenticated: |
| 1270 |
|
# return |
| 1271 |
|
|
| 1272 |
|
# self.connecting = True |
| 1273 |
|
# juju_public_key = None |
| 1274 |
|
# self.authenticated = True |
| 1275 |
|
# Test: Make sure we have the credentials loaded |
| 1276 |
|
# async def logout(self): |
| 1277 |
|
# """Logout of the Juju controller.""" |
| 1278 |
|
# self.log.debug("[logout]") |
| 1279 |
|
# if not self.authenticated: |
| 1280 |
|
# return False |
| 1281 |
|
|
| 1282 |
|
# for model in self.models: |
| 1283 |
|
# self.log.debug("Logging out of model {}".format(model)) |
| 1284 |
|
# await self.models[model].disconnect() |
| 1285 |
|
|
| 1286 |
|
# if self.controller: |
| 1287 |
|
# self.log.debug("Disconnecting controller {}".format(self.controller)) |
| 1288 |
|
# await self.controller.disconnect() |
| 1289 |
|
# self.controller = None |
| 1290 |
|
|
| 1291 |
|
# self.authenticated = False |
| 1292 |
|
|
| 1293 |
|
# async def remove_cloud(self, cloud_name: str,) -> bool: |
| 1294 |
|
# """Remove a k8s cloud from Juju |
| 1295 |
|
|
| 1296 |
|
# Removes a Kubernetes cloud from Juju. |
| 1297 |
|
|
| 1298 |
|
# :param cloud_name str: The name of the cloud to add. |
| 1299 |
|
|
| 1300 |
|
# :returns: True if successful, otherwise raises an exception. |
| 1301 |
|
# """ |
| 1302 |
|
|
| 1303 |
|
# # Remove the bootstrapped controller |
| 1304 |
|
# cmd = [self.juju_command, "remove-k8s", "--client", cloud_name] |
| 1305 |
|
# process = await asyncio.create_subprocess_exec( |
| 1306 |
|
# *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE, |
| 1307 |
|
# ) |
| 1308 |
|
|
| 1309 |
|
# _stdout, stderr = await process.communicate() |
| 1310 |
|
|
| 1311 |
|
# return_code = process.returncode |
| 1312 |
|
|
| 1313 |
|
# if return_code > 0: |
| 1314 |
|
# raise Exception(stderr) |
| 1315 |
|
|
| 1316 |
|
# # Remove the cloud from the local config |
| 1317 |
|
# cmd = [self.juju_command, "remove-cloud", "--client", cloud_name] |
| 1318 |
|
# process = await asyncio.create_subprocess_exec( |
| 1319 |
|
# *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE, |
| 1320 |
|
# ) |
| 1321 |
|
|
| 1322 |
|
# _stdout, stderr = await process.communicate() |
| 1323 |
|
|
| 1324 |
|
# return_code = process.returncode |
| 1325 |
|
|
| 1326 |
|
# if return_code > 0: |
| 1327 |
|
# raise Exception(stderr) |
| 1328 |
|
|
| 1329 |
|
# return True |
| 1330 |
|
|
| 1331 |
|
# async def set_config(self, cluster_uuid: str, config: dict,) -> bool: |
| 1332 |
|
# """Save the cluster configuration |
| 1333 |
|
|
| 1334 |
|
# Saves the cluster information to the Mongo database |
| 1335 |
|
|
| 1336 |
|
# :param cluster_uuid str: The UUID of the cluster |
| 1337 |
|
# :param config dict: A dictionary containing the cluster configuration |
| 1338 |
|
# """ |
| 1339 |
|
|
| 1340 |
|
# juju_db = self.db.get_one("admin", {"_id": "juju"}) |
| 1341 |
|
|
| 1342 |
|
# k8sclusters = juju_db["k8sclusters"] if "k8sclusters" in juju_db else [] |
| 1343 |
|
# self.db.encrypt_decrypt_fields( |
| 1344 |
|
# config, |
| 1345 |
|
# "encrypt", |
| 1346 |
|
# ["secret", "cacert"], |
| 1347 |
|
# schema_version="1.1", |
| 1348 |
|
# salt=cluster_uuid, |
| 1349 |
|
# ) |
| 1350 |
|
# k8sclusters.append({"_id": cluster_uuid, "config": config}) |
| 1351 |
|
# self.db.set_one( |
| 1352 |
|
# table="admin", |
| 1353 |
|
# q_filter={"_id": "juju"}, |
| 1354 |
|
# update_dict={"k8sclusters": k8sclusters}, |
| 1355 |
|
# ) |
| 1356 |
|
|
| 1357 |
|
# Private methods to create/delete needed resources in the |
| 1358 |
|
# Kubernetes cluster to create the K8s cloud in Juju |
| 1359 |
|
|
| 1360 |
1 |
def _create_cluster_role( |
| 1361 |
|
self, |
| 1362 |
|
kubectl: Kubectl, |
| 1363 |
|
name: str, |
| 1364 |
|
labels: Dict[str, str], |
| 1365 |
|
): |
| 1366 |
0 |
cluster_roles = kubectl.clients[RBAC_CLIENT].list_cluster_role( |
| 1367 |
|
field_selector="metadata.name={}".format(name) |
| 1368 |
|
) |
| 1369 |
|
|
| 1370 |
0 |
if len(cluster_roles.items) > 0: |
| 1371 |
0 |
raise Exception( |
| 1372 |
|
"Cluster role with metadata.name={} already exists".format(name) |
| 1373 |
|
) |
| 1374 |
|
|
| 1375 |
0 |
metadata = V1ObjectMeta(name=name, labels=labels, namespace=ADMIN_NAMESPACE) |
| 1376 |
|
# Cluster role |
| 1377 |
0 |
cluster_role = V1ClusterRole( |
| 1378 |
|
metadata=metadata, |
| 1379 |
|
rules=[ |
| 1380 |
|
V1PolicyRule(api_groups=["*"], resources=["*"], verbs=["*"]), |
| 1381 |
|
V1PolicyRule(non_resource_ur_ls=["*"], verbs=["*"]), |
| 1382 |
|
], |
| 1383 |
|
) |
| 1384 |
|
|
| 1385 |
0 |
kubectl.clients[RBAC_CLIENT].create_cluster_role(cluster_role) |
| 1386 |
|
|
| 1387 |
1 |
def _delete_cluster_role(self, kubectl: Kubectl, name: str): |
| 1388 |
0 |
kubectl.clients[RBAC_CLIENT].delete_cluster_role(name) |
| 1389 |
|
|
| 1390 |
1 |
def _create_service_account( |
| 1391 |
|
self, |
| 1392 |
|
kubectl: Kubectl, |
| 1393 |
|
name: str, |
| 1394 |
|
labels: Dict[str, str], |
| 1395 |
|
): |
| 1396 |
0 |
service_accounts = kubectl.clients[CORE_CLIENT].list_namespaced_service_account( |
| 1397 |
|
ADMIN_NAMESPACE, field_selector="metadata.name={}".format(name) |
| 1398 |
|
) |
| 1399 |
0 |
if len(service_accounts.items) > 0: |
| 1400 |
0 |
raise Exception( |
| 1401 |
|
"Service account with metadata.name={} already exists".format(name) |
| 1402 |
|
) |
| 1403 |
|
|
| 1404 |
0 |
metadata = V1ObjectMeta(name=name, labels=labels, namespace=ADMIN_NAMESPACE) |
| 1405 |
0 |
service_account = V1ServiceAccount(metadata=metadata) |
| 1406 |
|
|
| 1407 |
0 |
kubectl.clients[CORE_CLIENT].create_namespaced_service_account( |
| 1408 |
|
ADMIN_NAMESPACE, service_account |
| 1409 |
|
) |
| 1410 |
|
|
| 1411 |
1 |
def _delete_service_account(self, kubectl: Kubectl, name: str): |
| 1412 |
0 |
kubectl.clients[CORE_CLIENT].delete_namespaced_service_account( |
| 1413 |
|
name, ADMIN_NAMESPACE |
| 1414 |
|
) |
| 1415 |
|
|
| 1416 |
1 |
def _create_cluster_role_binding( |
| 1417 |
|
self, |
| 1418 |
|
kubectl: Kubectl, |
| 1419 |
|
name: str, |
| 1420 |
|
labels: Dict[str, str], |
| 1421 |
|
): |
| 1422 |
0 |
role_bindings = kubectl.clients[RBAC_CLIENT].list_cluster_role_binding( |
| 1423 |
|
field_selector="metadata.name={}".format(name) |
| 1424 |
|
) |
| 1425 |
0 |
if len(role_bindings.items) > 0: |
| 1426 |
0 |
raise Exception("Generated rbac id already exists") |
| 1427 |
|
|
| 1428 |
0 |
role_binding = V1ClusterRoleBinding( |
| 1429 |
|
metadata=V1ObjectMeta(name=name, labels=labels), |
| 1430 |
|
role_ref=V1RoleRef(kind="ClusterRole", name=name, api_group=""), |
| 1431 |
|
subjects=[ |
| 1432 |
|
V1Subject(kind="ServiceAccount", name=name, namespace=ADMIN_NAMESPACE) |
| 1433 |
|
], |
| 1434 |
|
) |
| 1435 |
0 |
kubectl.clients[RBAC_CLIENT].create_cluster_role_binding(role_binding) |
| 1436 |
|
|
| 1437 |
1 |
def _delete_cluster_role_binding(self, kubectl: Kubectl, name: str): |
| 1438 |
0 |
kubectl.clients[RBAC_CLIENT].delete_cluster_role_binding(name) |
| 1439 |
|
|
| 1440 |
1 |
async def _get_secret_data(self, kubectl: Kubectl, name: str) -> (str, str): |
| 1441 |
0 |
v1_core = kubectl.clients[CORE_CLIENT] |
| 1442 |
|
|
| 1443 |
0 |
retries_limit = 10 |
| 1444 |
0 |
secret_name = None |
| 1445 |
0 |
while True: |
| 1446 |
0 |
retries_limit -= 1 |
| 1447 |
0 |
service_accounts = v1_core.list_namespaced_service_account( |
| 1448 |
|
ADMIN_NAMESPACE, field_selector="metadata.name={}".format(name) |
| 1449 |
|
) |
| 1450 |
0 |
if len(service_accounts.items) == 0: |
| 1451 |
0 |
raise Exception( |
| 1452 |
|
"Service account not found with metadata.name={}".format(name) |
| 1453 |
|
) |
| 1454 |
0 |
service_account = service_accounts.items[0] |
| 1455 |
0 |
if service_account.secrets and len(service_account.secrets) > 0: |
| 1456 |
0 |
secret_name = service_account.secrets[0].name |
| 1457 |
0 |
if secret_name is not None or not retries_limit: |
| 1458 |
0 |
break |
| 1459 |
0 |
if not secret_name: |
| 1460 |
0 |
raise Exception( |
| 1461 |
|
"Failed getting the secret from service account {}".format(name) |
| 1462 |
|
) |
| 1463 |
0 |
secret = v1_core.list_namespaced_secret( |
| 1464 |
|
ADMIN_NAMESPACE, |
| 1465 |
|
field_selector="metadata.name={}".format(secret_name), |
| 1466 |
|
).items[0] |
| 1467 |
|
|
| 1468 |
0 |
token = secret.data[SERVICE_ACCOUNT_TOKEN_KEY] |
| 1469 |
0 |
client_certificate_data = secret.data[SERVICE_ACCOUNT_ROOT_CA_KEY] |
| 1470 |
|
|
| 1471 |
0 |
return ( |
| 1472 |
|
base64.b64decode(token).decode("utf-8"), |
| 1473 |
|
base64.b64decode(client_certificate_data).decode("utf-8"), |
| 1474 |
|
) |
| 1475 |
|
|
| 1476 |
1 |
@staticmethod |
| 1477 |
|
def generate_kdu_instance_name(**kwargs): |
| 1478 |
0 |
db_dict = kwargs.get("db_dict") |
| 1479 |
0 |
kdu_name = kwargs.get("kdu_name", None) |
| 1480 |
0 |
if kdu_name: |
| 1481 |
0 |
kdu_instance = "{}-{}".format(kdu_name, db_dict["filter"]["_id"]) |
| 1482 |
|
else: |
| 1483 |
0 |
kdu_instance = db_dict["filter"]["_id"] |
| 1484 |
0 |
return kdu_instance |
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