+++ /dev/null
-#!/usr/bin/env python3
-# Copyright 2020 Canonical Ltd.
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-#
-# For those usages not covered by the Apache License, Version 2.0 please
-# contact: legal@canonical.com
-#
-# To get in touch with the maintainers, please contact:
-# osm-charmers@lists.launchpad.net
-##
-
-import logging
-from typing import Any, Dict, List, NoReturn
-
-logger = logging.getLogger(__name__)
-
-
-def _validate_data(
- config_data: Dict[str, Any], relation_data: Dict[str, Any]
-) -> NoReturn:
- """Validate input data.
-
- Args:
- config_data (Dict[str, Any]): configuration data.
- relation_data (Dict[str, Any]): relation data.
- """
- config_validators = {
- "openstack_default_granularity": lambda value, _: (
- isinstance(value, int) and value > 0
- ),
- "global_request_timeout": lambda value, _: isinstance(value, int) and value > 0,
- "log_level": lambda value, _: (
- isinstance(value, str) and value in ("INFO", "DEBUG")
- ),
- "collector_interval": lambda value, _: isinstance(value, int) and value > 0,
- "evaluator_interval": lambda value, _: isinstance(value, int) and value > 0,
- "database_commonkey": lambda value, _: (
- isinstance(value, str) and len(value) > 0
- ),
- "vca_host": lambda value, _: isinstance(value, str) and len(value) > 0,
- "vca_user": lambda value, _: isinstance(value, str) and len(value) > 0,
- "vca_password": lambda value, _: isinstance(value, str) and len(value) > 0,
- "vca_cacert": lambda value, _: isinstance(value, str),
- }
- relation_validators = {
- "message_host": lambda value, _: isinstance(value, str) and len(value) > 0,
- "message_port": lambda value, _: isinstance(value, int) and value > 0,
- "database_uri": lambda value, _: (
- isinstance(value, str) and value.startswith("mongodb://")
- ),
- "prometheus_host": lambda value, _: isinstance(value, str) and len(value) > 0,
- "prometheus_port": lambda value, _: isinstance(value, int) and value > 0,
- }
- problems = []
-
- for key, validator in config_validators.items():
- valid = validator(config_data.get(key), config_data)
-
- if not valid:
- problems.append(key)
-
- for key, validator in relation_validators.items():
- valid = validator(relation_data.get(key), relation_data)
-
- if not valid:
- problems.append(key)
-
- if len(problems) > 0:
- raise ValueError("Errors found in: {}".format(", ".join(problems)))
-
-
-def _make_pod_ports(port: int) -> List[Dict[str, Any]]:
- """Generate pod ports details.
-
- Args:
- port (int): port to expose.
-
- Returns:
- List[Dict[str, Any]]: pod port details.
- """
- return [{"name": "mon", "containerPort": port, "protocol": "TCP"}]
-
-
-def _make_pod_envconfig(
- config: Dict[str, Any], relation_state: Dict[str, Any]
-) -> Dict[str, Any]:
- """Generate pod environment configuration.
-
- Args:
- config (Dict[str, Any]): configuration information.
- relation_state (Dict[str, Any]): relation state information.
-
- Returns:
- Dict[str, Any]: pod environment configuration.
- """
- envconfig = {
- # General configuration
- "ALLOW_ANONYMOUS_LOGIN": "yes",
- "OSMMON_OPENSTACK_DEFAULT_GRANULARITY": config["openstack_default_granularity"],
- "OSMMON_GLOBAL_REQUEST_TIMEOUT": config["global_request_timeout"],
- "OSMMON_GLOBAL_LOGLEVEL": config["log_level"],
- "OSMMON_COLLECTOR_INTERVAL": config["collector_interval"],
- "OSMMON_EVALUATOR_INTERVAL": config["evaluator_interval"],
- # Kafka configuration
- "OSMMON_MESSAGE_DRIVER": "kafka",
- "OSMMON_MESSAGE_HOST": relation_state["message_host"],
- "OSMMON_MESSAGE_PORT": relation_state["message_port"],
- # Database configuration
- "OSMMON_DATABASE_DRIVER": "mongo",
- "OSMMON_DATABASE_URI": relation_state["database_uri"],
- "OSMMON_DATABASE_COMMONKEY": config["database_commonkey"],
- # Prometheus configuration
- "OSMMON_PROMETHEUS_URL": f"http://{relation_state['prometheus_host']}:{relation_state['prometheus_port']}",
- # VCA configuration
- "OSMMON_VCA_HOST": config["vca_host"],
- "OSMMON_VCA_USER": config["vca_user"],
- "OSMMON_VCA_SECRET": config["vca_password"],
- "OSMMON_VCA_CACERT": config["vca_cacert"],
- }
-
- return envconfig
-
-
-def _make_startup_probe() -> Dict[str, Any]:
- """Generate startup probe.
-
- Returns:
- Dict[str, Any]: startup probe.
- """
- return {
- "exec": {"command": ["/usr/bin/pgrep python3"]},
- "initialDelaySeconds": 60,
- "timeoutSeconds": 5,
- }
-
-
-def _make_readiness_probe(port: int) -> Dict[str, Any]:
- """Generate readiness probe.
-
- Args:
- port (int): [description]
-
- Returns:
- Dict[str, Any]: readiness probe.
- """
- return {
- "tcpSocket": {
- "port": port,
- },
- "periodSeconds": 10,
- "timeoutSeconds": 5,
- "successThreshold": 1,
- "failureThreshold": 3,
- }
-
-
-def _make_liveness_probe(port: int) -> Dict[str, Any]:
- """Generate liveness probe.
-
- Args:
- port (int): [description]
-
- Returns:
- Dict[str, Any]: liveness probe.
- """
- return {
- "tcpSocket": {
- "port": port,
- },
- "initialDelaySeconds": 45,
- "periodSeconds": 10,
- "timeoutSeconds": 5,
- "successThreshold": 1,
- "failureThreshold": 3,
- }
-
-
-def make_pod_spec(
- image_info: Dict[str, str],
- config: Dict[str, Any],
- relation_state: Dict[str, Any],
- app_name: str = "mon",
- port: int = 8000,
-) -> Dict[str, Any]:
- """Generate the pod spec information.
-
- Args:
- image_info (Dict[str, str]): Object provided by
- OCIImageResource("image").fetch().
- config (Dict[str, Any]): Configuration information.
- relation_state (Dict[str, Any]): Relation state information.
- app_name (str, optional): Application name. Defaults to "mon".
- port (int, optional): Port for the container. Defaults to 8000.
-
- Returns:
- Dict[str, Any]: Pod spec dictionary for the charm.
- """
- if not image_info:
- return None
-
- _validate_data(config, relation_state)
-
- ports = _make_pod_ports(port)
- env_config = _make_pod_envconfig(config, relation_state)
-
- return {
- "version": 3,
- "containers": [
- {
- "name": app_name,
- "imageDetails": image_info,
- "imagePullPolicy": "Always",
- "ports": ports,
- "envConfig": env_config,
- }
- ],
- "kubernetesResources": {
- "ingressResources": [],
- },
- }
projects / osm / devops.git / blobdiff