from typing import NoReturn, Optional
from urllib.parse import urlparse
+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.grafana import GrafanaDashboardTarget
-from opslib.osm.interfaces.kafka import KafkaClient
from opslib.osm.interfaces.prometheus import PrometheusScrapeTarget
from opslib.osm.pod import (
ContainerV3Builder,
class KafkaExporterCharm(CharmedOsmBase):
+
+ on = KafkaEvents()
+
def __init__(self, *args) -> NoReturn:
super().__init__(*args, oci_image="image")
# Provision Kafka relation to exchange information
- 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.kafka = KafkaRequires(self)
+ self.framework.observe(self.on.kafka_available, self.configure_pod)
+ self.framework.observe(self.on.kafka_broken, self.configure_pod)
# Register relation to provide a Scraping Target
self.scrape_target = PrometheusScrapeTarget(self, "prometheus-scrape")
"""
missing_relations = []
- if (
- self.kafka_client.is_missing_data_in_unit()
- and self.kafka_client.is_missing_data_in_app()
- ):
+ if not self.kafka.host or not self.kafka.port:
missing_relations.append("kafka")
if missing_relations:
container_builder.add_command(
[
"kafka_exporter",
- f"--kafka.server={self.kafka_client.host}:{self.kafka_client.port}",
+ f"--kafka.server={self.kafka.host}:{self.kafka.port}",
]
)
container = container_builder.build()