def reconcile_backend_nodes()

in extras/postgres-hpa/helm-postgres-ha/pgpool-operator/pgpool.py [0:0]

• 25 lines of code
• 7 McCabe index (conditional complexity)

def reconcile_backend_nodes(logger, namespace, new, **_):
    replicas = new.get('spec', {}).get('replicas', 0) if new else 0
    hosts = [
        f"{i}:accounts-db-postgresql-{i}.accounts-db-postgresql-headless:5432" \
        for i in range(replicas)
    ]

    def propagate_hostenv(envvar, hosts):
        if envvar.name == "PGPOOL_BACKEND_NODES":
            return {
                "name": "PGPOOL_BACKEND_NODES",
                "value": ",".join(hosts),
            }
        return envvar

    try:
        pgpool = api.read_namespaced_deployment(name="accounts-db-pgpool", namespace=namespace)
        for container in pgpool.spec.template.spec.containers:
            container.env = [propagate_hostenv(envvar, hosts) for envvar in container.env]

        api.patch_namespaced_deployment(
            name="accounts-db-pgpool",
            namespace=namespace,
            body=pgpool
        )
        logger.info("PGPool deployment updated")
    except ApiException as e:
        raise kopf.TemporaryError("Error when calling AppsV1Api: %s\n" % e, delay=60)