-
- spec = {
- "version": 2,
- "containers": [
- {
- "name": self.framework.model.app.name,
- "image": "{}".format(config["image"]),
- "ports": ports,
- "kubernetes": kubernetes,
- "config": config_spec,
- }
- ],
- }
-
- return spec
-
- def on_config_changed(self, event):
- """Handle changes in configuration"""
- unit = self.model.unit
- unit.status = MaintenanceStatus("Applying new pod spec")
- self._apply_spec()
- unit.status = ActiveStatus("Ready")
-
- def on_start(self, event):
- """Called when the charm is being installed"""
- unit = self.model.unit
- unit.status = MaintenanceStatus("Applying pod spec")
- self._apply_spec()
- unit.status = ActiveStatus("Ready")
-
- def on_upgrade_charm(self, event):
- """Upgrade the charm."""
- unit = self.model.unit
- unit.status = MaintenanceStatus("Upgrading charm")
- self.on_start(event)
+ v = v.lower()
+ if v not in values.keys():
+ raise ValueError("value must be always, ifnotpresent or never")
+ return values[v]
+
+
+class PlaCharm(CharmedOsmBase):
+ def __init__(self, *args) -> NoReturn:
+ super().__init__(*args, oci_image="image")
+
+ self.kafka_client = KafkaClient(self, "kafka")
+ self.framework.observe(self.on["kafka"].relation_changed, self.configure_pod)
+ self.framework.observe(self.on["kafka"].relation_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 self.kafka_client.is_missing_data_in_unit():
+ 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()
+
+ # Build Container
+ container_builder = ContainerV3Builder(
+ self.app.name, image_info, config.image_pull_policy
+ )
+ 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_client.host,
+ "OSMPLA_MESSAGE_PORT": self.kafka_client.port,
+ # Database configuration
+ "OSMPLA_DATABASE_DRIVER": "mongo",
+ "OSMPLA_DATABASE_URI": config.mongodb_uri
+ or self.mongodb_client.connection_string,
+ "OSMPLA_DATABASE_COMMONKEY": config.database_commonkey,
+ }
+ )
+
+ container = container_builder.build()
+
+ # Add container to pod spec
+ pod_spec_builder.add_container(container)
+
+ return pod_spec_builder.build()