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## |
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# Copyright 2019 Telefonica Investigacion y Desarrollo, S.A.U. |
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# This file is part of OSM |
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# All Rights Reserved. |
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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 |
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# 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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# For those usages not covered by the Apache License, Version 2.0 please |
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# contact with: nfvlabs@tid.es |
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## |
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import asyncio |
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from typing import Union |
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import os |
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import yaml |
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|
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from n2vc.k8s_helm_base_conn import K8sHelmBaseConnector |
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from n2vc.exceptions import K8sException |
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class K8sHelmConnector(K8sHelmBaseConnector): |
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|
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""" |
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#################################################################################### |
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################################### P U B L I C #################################### |
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#################################################################################### |
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""" |
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|
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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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helm_command: str = "/usr/bin/helm", |
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log: object = None, |
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on_update_db=None, |
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): |
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""" |
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Initializes helm connector for helm v2 |
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:param fs: file system for kubernetes and helm configuration |
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:param db: database object to write current operation status |
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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 on_update_db: callback called when k8s connector updates database |
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""" |
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|
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# parent class |
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K8sHelmBaseConnector.__init__( |
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self, |
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db=db, |
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log=log, |
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fs=fs, |
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kubectl_command=kubectl_command, |
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helm_command=helm_command, |
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on_update_db=on_update_db, |
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) |
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|
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self.log.info("Initializing K8S Helm2 connector") |
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|
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# initialize helm client-only |
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self.log.debug("Initializing helm client-only...") |
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command = "{} init --client-only {} ".format( |
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self._helm_command, |
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"--stable-repo-url {}".format(self._stable_repo_url) |
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if self._stable_repo_url |
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else "--skip-repos", |
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) |
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try: |
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asyncio.ensure_future( |
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self._local_async_exec(command=command, raise_exception_on_error=False) |
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) |
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# loop = asyncio.get_event_loop() |
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# loop.run_until_complete(self._local_async_exec(command=command, |
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# raise_exception_on_error=False)) |
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except Exception as e: |
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self.warning( |
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msg="helm init failed (it was already initialized): {}".format(e) |
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) |
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self.log.info("K8S Helm2 connector initialized") |
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async def install( |
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self, |
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cluster_uuid: str, |
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kdu_model: str, |
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kdu_instance: str, |
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atomic: bool = True, |
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timeout: float = 300, |
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params: dict = None, |
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db_dict: dict = None, |
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kdu_name: str = None, |
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namespace: str = None, |
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**kwargs, |
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): |
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""" |
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Deploys of a new KDU instance. It would implicitly rely on the `install` call |
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to deploy the Chart/Bundle properly parametrized (in practice, this call would |
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happen before any _initial-config-primitive_of the VNF is called). |
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:param cluster_uuid: UUID of a K8s cluster known by OSM |
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:param kdu_model: chart/reference (string), which can be either |
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of these options: |
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- a name of chart available via the repos known by OSM |
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(e.g. stable/openldap, stable/openldap:1.2.4) |
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- a path to a packaged chart (e.g. mychart.tgz) |
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- a path to an unpacked chart directory or a URL (e.g. mychart) |
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:param kdu_instance: Kdu instance name |
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:param atomic: If set, installation process purges chart/bundle on fail, also |
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will wait until all the K8s objects are active |
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:param timeout: Time in seconds to wait for the install of the chart/bundle |
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(defaults to Helm default timeout: 300s) |
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:param params: dictionary of key-value pairs for instantiation parameters |
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(overriding default values) |
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:param dict db_dict: where to write into database when the status changes. |
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It contains a dict with {collection: <str>, filter: {}, |
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path: <str>}, |
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e.g. {collection: "nsrs", filter: |
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{_id: <nsd-id>, path: "_admin.deployed.K8S.3"} |
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:param kdu_name: Name of the KDU instance to be installed |
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:param namespace: K8s namespace to use for the KDU instance |
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:param kwargs: Additional parameters (None yet) |
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:return: True if successful |
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""" |
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self.log.debug("installing {} in cluster {}".format(kdu_model, cluster_uuid)) |
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# sync local dir |
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self.fs.sync(from_path=cluster_uuid) |
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|
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# init env, paths |
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paths, env = self._init_paths_env( |
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cluster_name=cluster_uuid, create_if_not_exist=True |
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) |
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await self._install_impl( |
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cluster_uuid, |
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kdu_model, |
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paths, |
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env, |
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kdu_instance, |
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atomic=atomic, |
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timeout=timeout, |
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params=params, |
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db_dict=db_dict, |
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kdu_name=kdu_name, |
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namespace=namespace, |
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) |
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|
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# sync fs |
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self.fs.reverse_sync(from_path=cluster_uuid) |
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|
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self.log.debug("Returning kdu_instance {}".format(kdu_instance)) |
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return True |
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|
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async def inspect_kdu(self, kdu_model: str, repo_url: str = None) -> str: |
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self.log.debug( |
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"inspect kdu_model {} from (optional) repo: {}".format(kdu_model, repo_url) |
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) |
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return await self._exec_inspect_command( |
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inspect_command="", kdu_model=kdu_model, repo_url=repo_url |
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) |
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""" |
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#################################################################################### |
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################################### P R I V A T E ################################## |
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#################################################################################### |
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""" |
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|
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def _init_paths_env(self, cluster_name: str, create_if_not_exist: bool = True): |
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""" |
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Creates and returns base cluster and kube dirs and returns them. |
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Also created helm3 dirs according to new directory specification, paths are |
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returned and also environment variables that must be provided to execute commands |
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|
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Helm 2 directory specification uses helm_home dir: |
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The variables assigned for this paths are: |
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- Helm hone: $HELM_HOME |
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- helm kubeconfig: $KUBECONFIG |
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:param cluster_name: cluster_name |
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:return: Dictionary with config_paths and dictionary with helm environment variables |
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""" |
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base = self.fs.path |
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if base.endswith("/") or base.endswith("\\"): |
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base = base[:-1] |
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# base dir for cluster |
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cluster_dir = base + "/" + cluster_name |
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|
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# kube dir |
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kube_dir = cluster_dir + "/" + ".kube" |
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if create_if_not_exist and not os.path.exists(kube_dir): |
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self.log.debug("Creating dir {}".format(kube_dir)) |
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os.makedirs(kube_dir) |
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|
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# helm home dir |
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helm_dir = cluster_dir + "/" + ".helm" |
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if create_if_not_exist and not os.path.exists(helm_dir): |
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self.log.debug("Creating dir {}".format(helm_dir)) |
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os.makedirs(helm_dir) |
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config_filename = kube_dir + "/config" |
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|
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# 2 - Prepare dictionary with paths |
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paths = { |
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"kube_dir": kube_dir, |
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"kube_config": config_filename, |
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"cluster_dir": cluster_dir, |
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"helm_dir": helm_dir, |
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} |
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|
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for file_name, file in paths.items(): |
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if "dir" in file_name and not os.path.exists(file): |
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err_msg = "{} dir does not exist".format(file) |
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self.log.error(err_msg) |
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raise K8sException(err_msg) |
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|
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# 3 - Prepare environment variables |
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env = {"HELM_HOME": helm_dir, "KUBECONFIG": config_filename} |
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return paths, env |
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|
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async def _get_services(self, cluster_id, kdu_instance, namespace, kubeconfig): |
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# init config, env |
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paths, env = self._init_paths_env( |
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cluster_name=cluster_id, create_if_not_exist=True |
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) |
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|
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command1 = "env KUBECONFIG={} {} get manifest {} ".format( |
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kubeconfig, self._helm_command, kdu_instance |
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) |
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command2 = "{} get --namespace={} -f -".format(self.kubectl_command, namespace) |
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output, _rc = await self._local_async_exec_pipe( |
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command1, command2, env=env, raise_exception_on_error=True |
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) |
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services = self._parse_services(output) |
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|
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return services |
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|
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async def _cluster_init( |
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self, cluster_id: str, namespace: str, paths: dict, env: dict |
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): |
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""" |
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Implements the helm version dependent cluster initialization: |
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For helm2 it initialized tiller environment if needed |
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""" |
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|
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# check if tiller pod is up in cluster |
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command = "{} --kubeconfig={} --namespace={} get deployments".format( |
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self.kubectl_command, paths["kube_config"], namespace |
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) |
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output, _rc = await self._local_async_exec( |
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command=command, raise_exception_on_error=True, env=env |
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) |
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|
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output_table = self._output_to_table(output=output) |
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|
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# find 'tiller' pod in all pods |
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already_initialized = False |
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try: |
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for row in output_table: |
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if row[0].startswith("tiller-deploy"): |
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already_initialized = True |
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break |
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except Exception: |
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pass |
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|
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# helm init |
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n2vc_installed_sw = False |
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if not already_initialized: |
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self.log.info( |
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"Initializing helm in client and server: {}".format(cluster_id) |
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) |
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command = "{} --kubeconfig={} --namespace kube-system create serviceaccount {}".format( |
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self.kubectl_command, paths["kube_config"], self.service_account |
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) |
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_, _rc = await self._local_async_exec( |
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command=command, raise_exception_on_error=False, env=env |
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) |
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|
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command = ( |
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"{} --kubeconfig={} create clusterrolebinding osm-tiller-cluster-rule " |
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"--clusterrole=cluster-admin --serviceaccount=kube-system:{}" |
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).format(self.kubectl_command, paths["kube_config"], self.service_account) |
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_, _rc = await self._local_async_exec( |
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command=command, raise_exception_on_error=False, env=env |
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) |
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|
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command = ( |
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"{} --kubeconfig={} --tiller-namespace={} --home={} --service-account {} " |
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" {} init" |
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).format( |
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self._helm_command, |
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paths["kube_config"], |
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namespace, |
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paths["helm_dir"], |
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self.service_account, |
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"--stable-repo-url {}".format(self._stable_repo_url) |
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if self._stable_repo_url |
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else "--skip-repos", |
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) |
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0 |
_, _rc = await self._local_async_exec( |
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command=command, raise_exception_on_error=True, env=env |
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) |
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n2vc_installed_sw = True |
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else: |
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# check client helm installation |
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0 |
check_file = paths["helm_dir"] + "/repository/repositories.yaml" |
| 322 |
0 |
if not self._check_file_exists( |
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filename=check_file, exception_if_not_exists=False |
| 324 |
|
): |
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0 |
self.log.info("Initializing helm in client: {}".format(cluster_id)) |
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0 |
command = ( |
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|
"{} --kubeconfig={} --tiller-namespace={} " |
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|
"--home={} init --client-only {} " |
| 329 |
|
).format( |
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|
self._helm_command, |
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|
paths["kube_config"], |
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|
namespace, |
| 333 |
|
paths["helm_dir"], |
| 334 |
|
"--stable-repo-url {}".format(self._stable_repo_url) |
| 335 |
|
if self._stable_repo_url |
| 336 |
|
else "--skip-repos", |
| 337 |
|
) |
| 338 |
0 |
output, _rc = await self._local_async_exec( |
| 339 |
|
command=command, raise_exception_on_error=True, env=env |
| 340 |
|
) |
| 341 |
|
else: |
| 342 |
0 |
self.log.info("Helm client already initialized") |
| 343 |
|
|
| 344 |
0 |
repo_list = await self.repo_list(cluster_id) |
| 345 |
0 |
for repo in repo_list: |
| 346 |
0 |
if repo["name"] == "stable" and repo["url"] != self._stable_repo_url: |
| 347 |
0 |
self.log.debug("Add new stable repo url: {}") |
| 348 |
0 |
await self.repo_remove(cluster_id, "stable") |
| 349 |
0 |
if self._stable_repo_url: |
| 350 |
0 |
await self.repo_add(cluster_id, "stable", self._stable_repo_url) |
| 351 |
0 |
break |
| 352 |
|
|
| 353 |
0 |
return n2vc_installed_sw |
| 354 |
|
|
| 355 |
1 |
async def _uninstall_sw(self, cluster_id: str, namespace: str): |
| 356 |
|
# uninstall Tiller if necessary |
| 357 |
|
|
| 358 |
1 |
self.log.debug("Uninstalling tiller from cluster {}".format(cluster_id)) |
| 359 |
|
|
| 360 |
|
# init paths, env |
| 361 |
1 |
paths, env = self._init_paths_env( |
| 362 |
|
cluster_name=cluster_id, create_if_not_exist=True |
| 363 |
|
) |
| 364 |
|
|
| 365 |
1 |
if not namespace: |
| 366 |
|
# find namespace for tiller pod |
| 367 |
0 |
command = "{} --kubeconfig={} get deployments --all-namespaces".format( |
| 368 |
|
self.kubectl_command, paths["kube_config"] |
| 369 |
|
) |
| 370 |
0 |
output, _rc = await self._local_async_exec( |
| 371 |
|
command=command, raise_exception_on_error=False, env=env |
| 372 |
|
) |
| 373 |
0 |
output_table = self._output_to_table(output=output) |
| 374 |
0 |
namespace = None |
| 375 |
0 |
for r in output_table: |
| 376 |
0 |
try: |
| 377 |
0 |
if "tiller-deploy" in r[1]: |
| 378 |
0 |
namespace = r[0] |
| 379 |
0 |
break |
| 380 |
0 |
except Exception: |
| 381 |
0 |
pass |
| 382 |
|
else: |
| 383 |
0 |
msg = "Tiller deployment not found in cluster {}".format(cluster_id) |
| 384 |
0 |
self.log.error(msg) |
| 385 |
|
|
| 386 |
0 |
self.log.debug("namespace for tiller: {}".format(namespace)) |
| 387 |
|
|
| 388 |
1 |
if namespace: |
| 389 |
|
# uninstall tiller from cluster |
| 390 |
1 |
self.log.debug("Uninstalling tiller from cluster {}".format(cluster_id)) |
| 391 |
1 |
command = "{} --kubeconfig={} --home={} reset".format( |
| 392 |
|
self._helm_command, paths["kube_config"], paths["helm_dir"] |
| 393 |
|
) |
| 394 |
1 |
self.log.debug("resetting: {}".format(command)) |
| 395 |
1 |
output, _rc = await self._local_async_exec( |
| 396 |
|
command=command, raise_exception_on_error=True, env=env |
| 397 |
|
) |
| 398 |
|
# Delete clusterrolebinding and serviceaccount. |
| 399 |
|
# Ignore if errors for backward compatibility |
| 400 |
1 |
command = ( |
| 401 |
|
"{} --kubeconfig={} delete clusterrolebinding.rbac.authorization.k8s." |
| 402 |
|
"io/osm-tiller-cluster-rule" |
| 403 |
|
).format(self.kubectl_command, paths["kube_config"]) |
| 404 |
1 |
output, _rc = await self._local_async_exec( |
| 405 |
|
command=command, raise_exception_on_error=False, env=env |
| 406 |
|
) |
| 407 |
1 |
command = ( |
| 408 |
|
"{} --kubeconfig={} --namespace {} delete serviceaccount/{}".format( |
| 409 |
|
self.kubectl_command, |
| 410 |
|
paths["kube_config"], |
| 411 |
|
namespace, |
| 412 |
|
self.service_account, |
| 413 |
|
) |
| 414 |
|
) |
| 415 |
1 |
output, _rc = await self._local_async_exec( |
| 416 |
|
command=command, raise_exception_on_error=False, env=env |
| 417 |
|
) |
| 418 |
|
|
| 419 |
|
else: |
| 420 |
0 |
self.log.debug("namespace not found") |
| 421 |
|
|
| 422 |
1 |
async def _instances_list(self, cluster_id): |
| 423 |
|
# init paths, env |
| 424 |
1 |
paths, env = self._init_paths_env( |
| 425 |
|
cluster_name=cluster_id, create_if_not_exist=True |
| 426 |
|
) |
| 427 |
|
|
| 428 |
1 |
command = "{} list --output yaml".format(self._helm_command) |
| 429 |
|
|
| 430 |
1 |
output, _rc = await self._local_async_exec( |
| 431 |
|
command=command, raise_exception_on_error=True, env=env |
| 432 |
|
) |
| 433 |
|
|
| 434 |
1 |
if output and len(output) > 0: |
| 435 |
|
# parse yaml and update keys to lower case to unify with helm3 |
| 436 |
0 |
instances = yaml.load(output, Loader=yaml.SafeLoader).get("Releases") |
| 437 |
0 |
new_instances = [] |
| 438 |
0 |
for instance in instances: |
| 439 |
0 |
new_instance = dict((k.lower(), v) for k, v in instance.items()) |
| 440 |
0 |
new_instances.append(new_instance) |
| 441 |
0 |
return new_instances |
| 442 |
|
else: |
| 443 |
1 |
return [] |
| 444 |
|
|
| 445 |
1 |
def _get_inspect_command( |
| 446 |
|
self, show_command: str, kdu_model: str, repo_str: str, version: str |
| 447 |
|
): |
| 448 |
1 |
inspect_command = "{} inspect {} {}{} {}".format( |
| 449 |
|
self._helm_command, show_command, kdu_model, repo_str, version |
| 450 |
|
) |
| 451 |
1 |
return inspect_command |
| 452 |
|
|
| 453 |
1 |
def _get_get_command( |
| 454 |
|
self, get_command: str, kdu_instance: str, namespace: str, kubeconfig: str |
| 455 |
|
): |
| 456 |
1 |
get_command = "env KUBECONFIG={} {} get {} {} --output yaml".format( |
| 457 |
|
kubeconfig, self._helm_command, get_command, kdu_instance |
| 458 |
|
) |
| 459 |
1 |
return get_command |
| 460 |
|
|
| 461 |
1 |
async def _status_kdu( |
| 462 |
|
self, |
| 463 |
|
cluster_id: str, |
| 464 |
|
kdu_instance: str, |
| 465 |
|
namespace: str = None, |
| 466 |
|
yaml_format: bool = False, |
| 467 |
|
show_error_log: bool = False, |
| 468 |
|
) -> Union[str, dict]: |
| 469 |
1 |
self.log.debug( |
| 470 |
|
"status of kdu_instance: {}, namespace: {} ".format(kdu_instance, namespace) |
| 471 |
|
) |
| 472 |
|
|
| 473 |
|
# init config, env |
| 474 |
1 |
paths, env = self._init_paths_env( |
| 475 |
|
cluster_name=cluster_id, create_if_not_exist=True |
| 476 |
|
) |
| 477 |
1 |
command = ("env KUBECONFIG={} {} status {} --output yaml").format( |
| 478 |
|
paths["kube_config"], self._helm_command, kdu_instance |
| 479 |
|
) |
| 480 |
1 |
output, rc = await self._local_async_exec( |
| 481 |
|
command=command, |
| 482 |
|
raise_exception_on_error=True, |
| 483 |
|
show_error_log=show_error_log, |
| 484 |
|
env=env, |
| 485 |
|
) |
| 486 |
|
|
| 487 |
1 |
if yaml_format: |
| 488 |
1 |
return str(output) |
| 489 |
|
|
| 490 |
0 |
if rc != 0: |
| 491 |
0 |
return None |
| 492 |
|
|
| 493 |
0 |
data = yaml.load(output, Loader=yaml.SafeLoader) |
| 494 |
|
|
| 495 |
|
# remove field 'notes' |
| 496 |
0 |
try: |
| 497 |
0 |
del data.get("info").get("status")["notes"] |
| 498 |
0 |
except KeyError: |
| 499 |
0 |
pass |
| 500 |
|
|
| 501 |
|
# parse the manifest to a list of dictionaries |
| 502 |
0 |
if "manifest" in data: |
| 503 |
0 |
manifest_str = data.get("manifest") |
| 504 |
0 |
manifest_docs = yaml.load_all(manifest_str, Loader=yaml.SafeLoader) |
| 505 |
|
|
| 506 |
0 |
data["manifest"] = [] |
| 507 |
0 |
for doc in manifest_docs: |
| 508 |
0 |
data["manifest"].append(doc) |
| 509 |
|
|
| 510 |
|
# parse field 'resources' |
| 511 |
0 |
try: |
| 512 |
0 |
resources = str(data.get("info").get("status").get("resources")) |
| 513 |
0 |
resource_table = self._output_to_table(resources) |
| 514 |
0 |
data.get("info").get("status")["resources"] = resource_table |
| 515 |
0 |
except Exception: |
| 516 |
0 |
pass |
| 517 |
|
|
| 518 |
|
# set description to lowercase (unify with helm3) |
| 519 |
0 |
try: |
| 520 |
0 |
data.get("info")["description"] = data.get("info").pop("Description") |
| 521 |
0 |
except KeyError: |
| 522 |
0 |
pass |
| 523 |
|
|
| 524 |
0 |
return data |
| 525 |
|
|
| 526 |
1 |
def _get_helm_chart_repos_ids(self, cluster_uuid) -> list: |
| 527 |
0 |
repo_ids = [] |
| 528 |
0 |
cluster_filter = {"_admin.helm-chart.id": cluster_uuid} |
| 529 |
0 |
cluster = self.db.get_one("k8sclusters", cluster_filter) |
| 530 |
0 |
if cluster: |
| 531 |
0 |
repo_ids = cluster.get("_admin").get("helm_chart_repos") or [] |
| 532 |
0 |
return repo_ids |
| 533 |
|
else: |
| 534 |
0 |
raise K8sException( |
| 535 |
|
"k8cluster with helm-id : {} not found".format(cluster_uuid) |
| 536 |
|
) |
| 537 |
|
|
| 538 |
1 |
async def _is_install_completed(self, cluster_id: str, kdu_instance: str) -> bool: |
| 539 |
|
# init config, env |
| 540 |
0 |
paths, env = self._init_paths_env( |
| 541 |
|
cluster_name=cluster_id, create_if_not_exist=True |
| 542 |
|
) |
| 543 |
|
|
| 544 |
0 |
status = await self._status_kdu( |
| 545 |
|
cluster_id=cluster_id, kdu_instance=kdu_instance, yaml_format=False |
| 546 |
|
) |
| 547 |
|
|
| 548 |
|
# extract info.status.resources-> str |
| 549 |
|
# format: |
| 550 |
|
# ==> v1/Deployment |
| 551 |
|
# NAME READY UP-TO-DATE AVAILABLE AGE |
| 552 |
|
# halting-horse-mongodb 0/1 1 0 0s |
| 553 |
|
# halting-petit-mongodb 1/1 1 0 0s |
| 554 |
|
# blank line |
| 555 |
0 |
resources = K8sHelmBaseConnector._get_deep( |
| 556 |
|
status, ("info", "status", "resources") |
| 557 |
|
) |
| 558 |
|
|
| 559 |
|
# convert to table |
| 560 |
0 |
resources = K8sHelmBaseConnector._output_to_table(resources) |
| 561 |
|
|
| 562 |
0 |
num_lines = len(resources) |
| 563 |
0 |
index = 0 |
| 564 |
0 |
ready = True |
| 565 |
0 |
while index < num_lines: |
| 566 |
0 |
try: |
| 567 |
0 |
line1 = resources[index] |
| 568 |
0 |
index += 1 |
| 569 |
|
# find '==>' in column 0 |
| 570 |
0 |
if line1[0] == "==>": |
| 571 |
0 |
line2 = resources[index] |
| 572 |
0 |
index += 1 |
| 573 |
|
# find READY in column 1 |
| 574 |
0 |
if line2[1] == "READY": |
| 575 |
|
# read next lines |
| 576 |
0 |
line3 = resources[index] |
| 577 |
0 |
index += 1 |
| 578 |
0 |
while len(line3) > 1 and index < num_lines: |
| 579 |
0 |
ready_value = line3[1] |
| 580 |
0 |
parts = ready_value.split(sep="/") |
| 581 |
0 |
current = int(parts[0]) |
| 582 |
0 |
total = int(parts[1]) |
| 583 |
0 |
if current < total: |
| 584 |
0 |
self.log.debug("NOT READY:\n {}".format(line3)) |
| 585 |
0 |
ready = False |
| 586 |
0 |
line3 = resources[index] |
| 587 |
0 |
index += 1 |
| 588 |
|
|
| 589 |
0 |
except Exception: |
| 590 |
0 |
pass |
| 591 |
|
|
| 592 |
0 |
return ready |
| 593 |
|
|
| 594 |
1 |
def _get_install_command( |
| 595 |
|
self, |
| 596 |
|
kdu_model, |
| 597 |
|
kdu_instance, |
| 598 |
|
namespace, |
| 599 |
|
params_str, |
| 600 |
|
version, |
| 601 |
|
atomic, |
| 602 |
|
timeout, |
| 603 |
|
kubeconfig, |
| 604 |
|
) -> str: |
| 605 |
1 |
timeout_str = "" |
| 606 |
1 |
if timeout: |
| 607 |
1 |
timeout_str = "--timeout {}".format(timeout) |
| 608 |
|
|
| 609 |
|
# atomic |
| 610 |
1 |
atomic_str = "" |
| 611 |
1 |
if atomic: |
| 612 |
1 |
atomic_str = "--atomic" |
| 613 |
|
# namespace |
| 614 |
1 |
namespace_str = "" |
| 615 |
1 |
if namespace: |
| 616 |
1 |
namespace_str = "--namespace {}".format(namespace) |
| 617 |
|
|
| 618 |
|
# version |
| 619 |
1 |
version_str = "" |
| 620 |
1 |
if version: |
| 621 |
1 |
version_str = "--version {}".format(version) |
| 622 |
|
|
| 623 |
1 |
command = ( |
| 624 |
|
"env KUBECONFIG={kubeconfig} {helm} install {atomic} --output yaml " |
| 625 |
|
"{params} {timeout} --name={name} {ns} {model} {ver}".format( |
| 626 |
|
kubeconfig=kubeconfig, |
| 627 |
|
helm=self._helm_command, |
| 628 |
|
atomic=atomic_str, |
| 629 |
|
params=params_str, |
| 630 |
|
timeout=timeout_str, |
| 631 |
|
name=kdu_instance, |
| 632 |
|
ns=namespace_str, |
| 633 |
|
model=kdu_model, |
| 634 |
|
ver=version_str, |
| 635 |
|
) |
| 636 |
|
) |
| 637 |
1 |
return command |
| 638 |
|
|
| 639 |
1 |
def _get_upgrade_scale_command( |
| 640 |
|
self, |
| 641 |
|
kdu_model: str, |
| 642 |
|
kdu_instance: str, |
| 643 |
|
namespace: str, |
| 644 |
|
scale: int, |
| 645 |
|
version: str, |
| 646 |
|
atomic: bool, |
| 647 |
|
replica_str: str, |
| 648 |
|
timeout: float, |
| 649 |
|
resource_name: str, |
| 650 |
|
kubeconfig: str, |
| 651 |
|
) -> str: |
| 652 |
|
"""Generates the command to scale a Helm Chart release |
| 653 |
|
|
| 654 |
|
Args: |
| 655 |
|
kdu_model (str): Kdu model name, corresponding to the Helm local location or repository |
| 656 |
|
kdu_instance (str): KDU instance, corresponding to the Helm Chart release in question |
| 657 |
|
namespace (str): Namespace where this KDU instance is deployed |
| 658 |
|
scale (int): Scale count |
| 659 |
|
version (str): Constraint with specific version of the Chart to use |
| 660 |
|
atomic (bool): If set, upgrade process rolls back changes made in case of failed upgrade. |
| 661 |
|
The --wait flag will be set automatically if --atomic is used |
| 662 |
|
replica_str (str): The key under resource_name key where the scale count is stored |
| 663 |
|
timeout (float): The time, in seconds, to wait |
| 664 |
|
resource_name (str): The KDU's resource to scale |
| 665 |
|
kubeconfig (str): Kubeconfig file path |
| 666 |
|
|
| 667 |
|
Returns: |
| 668 |
|
str: command to scale a Helm Chart release |
| 669 |
|
""" |
| 670 |
|
|
| 671 |
|
# scale |
| 672 |
1 |
if resource_name: |
| 673 |
1 |
scale_dict = {"{}.{}".format(resource_name, replica_str): scale} |
| 674 |
|
else: |
| 675 |
1 |
scale_dict = {replica_str: scale} |
| 676 |
|
|
| 677 |
1 |
scale_str = self._params_to_set_option(scale_dict) |
| 678 |
|
|
| 679 |
1 |
return self._get_upgrade_command( |
| 680 |
|
kdu_model=kdu_model, |
| 681 |
|
kdu_instance=kdu_instance, |
| 682 |
|
namespace=namespace, |
| 683 |
|
params_str=scale_str, |
| 684 |
|
version=version, |
| 685 |
|
atomic=atomic, |
| 686 |
|
timeout=timeout, |
| 687 |
|
kubeconfig=kubeconfig, |
| 688 |
|
) |
| 689 |
|
|
| 690 |
1 |
def _get_upgrade_command( |
| 691 |
|
self, |
| 692 |
|
kdu_model, |
| 693 |
|
kdu_instance, |
| 694 |
|
namespace, |
| 695 |
|
params_str, |
| 696 |
|
version, |
| 697 |
|
atomic, |
| 698 |
|
timeout, |
| 699 |
|
kubeconfig, |
| 700 |
|
force: bool = False, |
| 701 |
|
) -> str: |
| 702 |
|
"""Generates the command to upgrade a Helm Chart release |
| 703 |
|
|
| 704 |
|
Args: |
| 705 |
|
kdu_model (str): Kdu model name, corresponding to the Helm local location or repository |
| 706 |
|
kdu_instance (str): KDU instance, corresponding to the Helm Chart release in question |
| 707 |
|
namespace (str): Namespace where this KDU instance is deployed |
| 708 |
|
params_str (str): Params used to upgrade the Helm Chart release |
| 709 |
|
version (str): Constraint with specific version of the Chart to use |
| 710 |
|
atomic (bool): If set, upgrade process rolls back changes made in case of failed upgrade. |
| 711 |
|
The --wait flag will be set automatically if --atomic is used |
| 712 |
|
timeout (float): The time, in seconds, to wait |
| 713 |
|
kubeconfig (str): Kubeconfig file path |
| 714 |
|
force (bool): If set, helm forces resource updates through a replacement strategy. This may recreate pods. |
| 715 |
|
Returns: |
| 716 |
|
str: command to upgrade a Helm Chart release |
| 717 |
|
""" |
| 718 |
|
|
| 719 |
1 |
timeout_str = "" |
| 720 |
1 |
if timeout: |
| 721 |
1 |
timeout_str = "--timeout {}".format(timeout) |
| 722 |
|
|
| 723 |
|
# atomic |
| 724 |
1 |
atomic_str = "" |
| 725 |
1 |
if atomic: |
| 726 |
1 |
atomic_str = "--atomic" |
| 727 |
|
|
| 728 |
|
# force |
| 729 |
1 |
force_str = "" |
| 730 |
1 |
if force: |
| 731 |
1 |
force_str = "--force " |
| 732 |
|
|
| 733 |
|
# version |
| 734 |
1 |
version_str = "" |
| 735 |
1 |
if version: |
| 736 |
1 |
version_str = "--version {}".format(version) |
| 737 |
|
|
| 738 |
|
# namespace |
| 739 |
1 |
namespace_str = "" |
| 740 |
1 |
if namespace: |
| 741 |
1 |
namespace_str = "--namespace {}".format(namespace) |
| 742 |
|
|
| 743 |
1 |
command = ( |
| 744 |
|
"env KUBECONFIG={kubeconfig} {helm} upgrade {namespace} {atomic} --output yaml {params} {timeout} {force}" |
| 745 |
|
"--reuse-values {name} {model} {ver}" |
| 746 |
|
).format( |
| 747 |
|
kubeconfig=kubeconfig, |
| 748 |
|
helm=self._helm_command, |
| 749 |
|
namespace=namespace_str, |
| 750 |
|
atomic=atomic_str, |
| 751 |
|
force=force_str, |
| 752 |
|
params=params_str, |
| 753 |
|
timeout=timeout_str, |
| 754 |
|
name=kdu_instance, |
| 755 |
|
model=kdu_model, |
| 756 |
|
ver=version_str, |
| 757 |
|
) |
| 758 |
1 |
return command |
| 759 |
|
|
| 760 |
1 |
def _get_rollback_command( |
| 761 |
|
self, kdu_instance, namespace, revision, kubeconfig |
| 762 |
|
) -> str: |
| 763 |
1 |
return "env KUBECONFIG={} {} rollback {} {} --wait".format( |
| 764 |
|
kubeconfig, self._helm_command, kdu_instance, revision |
| 765 |
|
) |
| 766 |
|
|
| 767 |
1 |
def _get_uninstall_command( |
| 768 |
|
self, kdu_instance: str, namespace: str, kubeconfig: str |
| 769 |
|
) -> str: |
| 770 |
1 |
return "env KUBECONFIG={} {} delete --purge {}".format( |
| 771 |
|
kubeconfig, self._helm_command, kdu_instance |
| 772 |
|
) |
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