check_service_active,
)
from charms.osm_vca_integrator.v0.vca import VcaDataChangedEvent, VcaRequires
+from charms.prometheus_k8s.v0.prometheus_scrape import MetricsEndpointProvider
from lightkube.models.core_v1 import ServicePort
from ops.charm import ActionEvent, CharmBase, CharmEvents
from ops.framework import EventSource, StoredState
GrafanaConfig,
GrafanaDataSourceHandler,
)
-from legacy_interfaces import KeystoneClient, PrometheusClient
+from legacy_interfaces import KeystoneClient
HOSTPATHS = [
HostPath(
),
]
SERVICE_PORT = 8000
+PROMETHEUS_RELATION = "metrics-endpoint"
logger = logging.getLogger(__name__)
super().__init__(*args)
self.kafka = KafkaRequires(self)
self.mongodb_client = DatabaseRequires(self, "mongodb", database_name="osm")
- self.prometheus_client = PrometheusClient(self, "prometheus")
+ self._set_metrics_endpoint_provider()
self.keystone_client = KeystoneClient(self, "keystone")
self.vca = VcaRequires(self)
self._observe_charm_events()
self.debug_mode = DebugMode(self, self._stored, self.container, HOSTPATHS)
self._patch_k8s_service()
+ def _set_metrics_endpoint_provider(self):
+ prometheus_jobs = [
+ {
+ "job_name": "mon_exporter",
+ "static_configs": [{"targets": ["*:{}".format(SERVICE_PORT)]}],
+ }
+ ]
+ refresh_events = [
+ self.on.mon_pebble_ready,
+ self.on.update_status,
+ ]
+ self.prometheus_metrics_endpoint = MetricsEndpointProvider(
+ self, jobs=prometheus_jobs, refresh_event=refresh_events
+ )
+
@property
def external_hostname(self) -> str:
"""External hostname property.
self.unit.status = e.status
def _on_required_relation_broken(self, _) -> None:
- """Handler for the kafka-broken event."""
+ """Handler for the relation-broken event."""
try:
check_container_ready(self.container)
check_service_active(self.container, self.service_name)
self.on.list_datasources_action: self._on_list_datasources_action,
self.on.delete_datasource_action: self._on_delete_datasource_action,
}
- for relation in [self.on[rel_name] for rel_name in ["prometheus", "keystone"]]:
+
+ for relation in [self.on[rel_name] for rel_name in [PROMETHEUS_RELATION, "keystone"]]:
event_handler_mapping[relation.relation_changed] = self._on_config_changed
event_handler_mapping[relation.relation_broken] = self._on_required_relation_broken
CharmError: if charm configuration is invalid.
"""
logger.debug("validating charm config")
+ self._validate_mandatory_config_is_set()
+ self._validate_urls_in_config()
+
+ def _validate_mandatory_config_is_set(self):
missing_configs = []
- grafana_configs = ["grafana-url", "grafana-user", "grafana-password"]
- for config in grafana_configs:
+ mandatory_configs = ["grafana-url", "grafana-user", "grafana-password", "prometheus-url"]
+ for config in mandatory_configs:
if not self.config.get(config):
missing_configs.append(config)
logger.warning(error_msg)
raise CharmError(error_msg)
- grafana_url = self.config["grafana-url"]
- if not self._is_valid_url(grafana_url):
- raise CharmError(f"Invalid value for grafana-url config: '{grafana_url}'")
+ def _validate_urls_in_config(self):
+ urls_to_validate = ["grafana-url", "prometheus-url"]
+ for param in urls_to_validate:
+ url = self.config[param]
+ if not self._is_valid_url(url):
+ raise CharmError(f"Invalid value for {param} config: '{url}'")
def _is_valid_url(self, url) -> bool:
return urlparse(url).hostname is not None
missing_relations.append("kafka")
if not self._is_database_available():
missing_relations.append("mongodb")
- if self.prometheus_client.is_missing_data_in_app():
+ if not self.framework.model.get_relation(PROMETHEUS_RELATION):
missing_relations.append("prometheus")
if self.keystone_client.is_missing_data_in_app():
missing_relations.append("keystone")
"OSMMON_DATABASE_DRIVER": "mongo",
"OSMMON_DATABASE_URI": self._get_mongodb_uri(),
"OSMMON_DATABASE_COMMONKEY": self.config["database-commonkey"],
- # Prometheus/grafana configuration
- "OSMMON_PROMETHEUS_URL": f"http://{self.prometheus_client.hostname}:{self.prometheus_client.port}",
- "OSMMON_PROMETHEUS_USER": self.prometheus_client.user,
- "OSMMON_PROMETHEUS_PASSWORD": self.prometheus_client.password,
+ # Prometheus configuration
+ "OSMMON_PROMETHEUS_URL": self.config.get("prometheus-url", ""),
+ "OSMMON_PROMETHEUS_USER": "",
+ "OSMMON_PROMETHEUS_PASSWORD": "",
+ # Grafana configuration
"OSMMON_GRAFANA_URL": self.config.get("grafana-url", ""),
"OSMMON_GRAFANA_USER": self.config.get("grafana-user", ""),
"OSMMON_GRAFANA_PASSWORD": self.config.get("grafana-password", ""),
"OSMMON_KEYSTONE_ENABLED": self.config["keystone-enabled"],
"OSMMON_KEYSTONE_URL": self.keystone_client.host,
+ # Keystone configuration
"OSMMON_KEYSTONE_DOMAIN_NAME": self.keystone_client.user_domain_name,
"OSMMON_KEYSTONE_SERVICE_PROJECT": self.keystone_client.service,
"OSMMON_KEYSTONE_SERVICE_USER": self.keystone_client.username,