### https://patroni.readthedocs.io/en/latest/rest_api.html

> curl -i http://localhost:8008/readiness
HTTP/1.0 200 OK


> curl -i http://localhost:8008/liveness
HTTP/1.0 200 OK


> curl -i http://localhost:8008/patroni
HTTP/1.0 200 OK
Server: BaseHTTP/0.6 Python/3.12.3
Date: Fri, 08 May 2026 15:36:46 GMT
Content-Type: application/json

{"state": "unknown", "role": "replica", "cluster_unlocked": true, "dcs_last_seen": 1778254602, "database_system_identifier": "7637152973093863500", "patroni": {"version": "3.2.2", "scope": "pgcluster", "name": "pg-knoten-01"}}


# Gibt nur "200" zurück, wenn der abgefragte Host "Leader" ist!
> curl -i http://localhost:8008/leader
HTTP/1.0 200 OK
Server: BaseHTTP/0.6 Python/3.12.3
Date: Sun, 10 May 2026 11:59:18 GMT
Content-Type: application/json

{"state": "running", "postmaster_start_time": "2026-05-08 21:07:24.936732+02:00", "role": "master", "server_version": 160013, "xlog": {"location": 22277144}, "timeline": 2, "dcs_last_seen": 1778414356, "database_system_identifier": "7637598528541987072", "patroni": {"version": "3.2.2", "scope": "pgcluster", "name": "pg-knoten-01"}}


> curl -i http://localhost:8008/metrics
HTTP/1.0 200 OK
Server: BaseHTTP/0.6 Python/3.12.3
Date: Fri, 08 May 2026 15:37:38 GMT
Content-Type: text/plain

# HELP patroni_version Patroni semver without periods.
# TYPE patroni_version gauge
patroni_version{scope="pgcluster",name="pg-knoten-01"} 030202
...


> curl -i http://localhost:8008/cluster
HTTP/1.0 200 OK
Server: BaseHTTP/0.6 Python/3.12.3
Date: Fri, 08 May 2026 15:40:49 GMT
Content-Type: application/json

{"members": [{"name": "pg-knoten-01", "role": "replica", "state": "running", "api_url": "http://pg-knoten-03:8008/patroni", "host": "pg-knoten-03", "port": 5432, "lag": "unknown"}], "scope": "pgcluster"}


> curl -i http://localhost:8008/history
HTTP/1.0 200 OK
Server: BaseHTTP/0.6 Python/3.12.3
Date: Fri, 08 May 2026 15:41:34 GMT
Content-Type: application/json

[]