-
-class PLACharm(CharmBase):
- state = StoredState()
-
- def __init__(self, framework, key):
- super().__init__(framework, key)
- self.state.set_default(spec=None)
-
- # Observe Charm related events
- self.framework.observe(self.on.config_changed, self.on_config_changed)
- self.framework.observe(self.on.start, self.on_start)
- self.framework.observe(self.on.upgrade_charm, self.on_upgrade_charm)
-
- def _apply_spec(self):
- # Only apply the spec if this unit is a leader.
- if not self.framework.model.unit.is_leader():
- return
- new_spec = self.make_pod_spec()
- if new_spec == self.state.spec:
- return
- self.framework.model.pod.set_spec(new_spec)
- self.state.spec = new_spec
-
- def make_pod_spec(self):
- config = self.framework.model.config
-
- ports = [
- {"name": "port", "containerPort": config["port"], "protocol": "TCP",},
- ]
-
- kubernetes = {
- "readinessProbe": {
- "tcpSocket": {"port": config["port"]},
- "timeoutSeconds": 5,
- "periodSeconds": 5,
- "initialDelaySeconds": 10,
+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):
+ 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()
+ and self.kafka_client.is_missing_data_in_app()
+ ):
+ 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,