+++ /dev/null
-#!/usr/bin/env python3
-# Copyright 2021 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
-##
-
-# pylint: disable=E0213
-
-
-import logging
-from typing import NoReturn, Optional
-
-from charms.kafka_k8s.v0.kafka import KafkaEvents, KafkaRequires
-from ops.main import main
-from opslib.osm.charm import CharmedOsmBase, RelationsMissing
-from opslib.osm.interfaces.mongo import MongoClient
-from opslib.osm.pod import (
- ContainerV3Builder,
- PodRestartPolicy,
- PodSpecV3Builder,
-)
-from opslib.osm.validator import ModelValidator, validator
-
-
-logger = logging.getLogger(__name__)
-
-PORT = 9999
-
-
-class ConfigModel(ModelValidator):
- database_commonkey: str
- mongodb_uri: Optional[str]
- log_level: str
- image_pull_policy: str
- security_context: bool
-
- @validator("log_level")
- def validate_log_level(cls, v):
- if v not in {"INFO", "DEBUG"}:
- raise ValueError("value must be INFO or DEBUG")
- return v
-
- @validator("mongodb_uri")
- def validate_mongodb_uri(cls, v):
- if v and not v.startswith("mongodb://"):
- raise ValueError("mongodb_uri is not properly formed")
- return v
-
- @validator("image_pull_policy")
- def validate_image_pull_policy(cls, v):
- values = {
- "always": "Always",
- "ifnotpresent": "IfNotPresent",
- "never": "Never",
- }
- v = v.lower()
- if v not in values.keys():
- raise ValueError("value must be always, ifnotpresent or never")
- return values[v]
-
-
-class PlaCharm(CharmedOsmBase):
- on = KafkaEvents()
-
- def __init__(self, *args) -> NoReturn:
- super().__init__(*args, oci_image="image")
-
- self.kafka = KafkaRequires(self)
- self.framework.observe(self.on.kafka_available, self.configure_pod)
- self.framework.observe(self.on.kafka_broken, self.configure_pod)
-
- self.mongodb_client = MongoClient(self, "mongodb")
- self.framework.observe(self.on["mongodb"].relation_changed, self.configure_pod)
- self.framework.observe(self.on["mongodb"].relation_broken, self.configure_pod)
-
- def _check_missing_dependencies(self, config: ConfigModel):
- missing_relations = []
-
- if not self.kafka.host or not self.kafka.port:
- missing_relations.append("kafka")
- if not config.mongodb_uri and self.mongodb_client.is_missing_data_in_unit():
- missing_relations.append("mongodb")
-
- if missing_relations:
- raise RelationsMissing(missing_relations)
-
- def build_pod_spec(self, image_info):
- # Validate config
- config = ConfigModel(**dict(self.config))
-
- if config.mongodb_uri and not self.mongodb_client.is_missing_data_in_unit():
- raise Exception("Mongodb data cannot be provided via config and relation")
-
- # Check relations
- self._check_missing_dependencies(config)
-
- # Create Builder for the PodSpec
- pod_spec_builder = PodSpecV3Builder(
- enable_security_context=config.security_context
- )
-
- # Add secrets to the pod
- mongodb_secret_name = f"{self.app.name}-mongodb-secret"
- pod_spec_builder.add_secret(
- mongodb_secret_name,
- {
- "uri": config.mongodb_uri or self.mongodb_client.connection_string,
- "commonkey": config.database_commonkey,
- },
- )
-
- # Build Container
- container_builder = ContainerV3Builder(
- self.app.name,
- image_info,
- config.image_pull_policy,
- run_as_non_root=config.security_context,
- )
- container_builder.add_port(name=self.app.name, port=PORT)
- container_builder.add_envs(
- {
- # General configuration
- "ALLOW_ANONYMOUS_LOGIN": "yes",
- "OSMPLA_GLOBAL_LOG_LEVEL": config.log_level,
- # Kafka configuration
- "OSMPLA_MESSAGE_DRIVER": "kafka",
- "OSMPLA_MESSAGE_HOST": self.kafka.host,
- "OSMPLA_MESSAGE_PORT": self.kafka.port,
- # Database configuration
- "OSMPLA_DATABASE_DRIVER": "mongo",
- }
- )
-
- container_builder.add_secret_envs(
- secret_name=mongodb_secret_name,
- envs={
- "OSMPLA_DATABASE_URI": "uri",
- "OSMPLA_DATABASE_COMMONKEY": "commonkey",
- },
- )
-
- container = container_builder.build()
-
- # Add Pod restart policy
- restart_policy = PodRestartPolicy()
- restart_policy.add_secrets(secret_names=(mongodb_secret_name,))
- pod_spec_builder.set_restart_policy(restart_policy)
-
- # Add container to pod spec
- pod_spec_builder.add_container(container)
-
- return pod_spec_builder.build()
-
-
-if __name__ == "__main__":
- main(PlaCharm)
projects / osm / devops.git / blobdiff