cephadm: change loki/promtail default image tags

This commit changes the default images for both loki and promtail
containers.
Also, to allow this update we need to update the configuration of loki
in order to add a new storage schema configuration:

```
    - from: 2024-05-03
      store: tsdb
      object_store: filesystem
      schema: v13
      index:
        prefix: index_
        period: 24h
```

This is because 3.0.0 uses new structured metadata.

See [1][2].

[1] https://grafana.com/docs/loki/latest/operations/storage/schema/
[2] https://grafana.com/docs/loki/latest/get-started/labels/structured-metadata/#when-to-use-structured-metadata

Fixes: https://tracker.ceph.com/issues/65784

Signed-off-by: Guillaume Abrioux <[email protected]>

Author: guits

src/cephadm/cephadmlib/constants.py

@@ -5,8 +5,8 @@
 DEFAULT_IMAGE_IS_MAIN = True
 DEFAULT_IMAGE_RELEASE = 'squid'
 DEFAULT_PROMETHEUS_IMAGE = 'quay.io/prometheus/prometheus:v2.43.0'
-DEFAULT_LOKI_IMAGE = 'docker.io/grafana/loki:2.4.0'
-DEFAULT_PROMTAIL_IMAGE = 'docker.io/grafana/promtail:2.4.0'
+DEFAULT_LOKI_IMAGE = 'docker.io/grafana/loki:3.0.0'
+DEFAULT_PROMTAIL_IMAGE = 'docker.io/grafana/promtail:3.0.0'
 DEFAULT_NODE_EXPORTER_IMAGE = 'quay.io/prometheus/node-exporter:v1.5.0'
 DEFAULT_ALERT_MANAGER_IMAGE = 'quay.io/prometheus/alertmanager:v0.25.0'
 DEFAULT_GRAFANA_IMAGE = 'quay.io/ceph/grafana:9.4.12'

src/pybind/mgr/cephadm/module.py

@@ -121,8 +121,8 @@ def os_exit_noop(status: int) -> None:
 DEFAULT_PROMETHEUS_IMAGE = 'quay.io/prometheus/prometheus:v2.43.0'
 DEFAULT_NODE_EXPORTER_IMAGE = 'quay.io/prometheus/node-exporter:v1.5.0'
 DEFAULT_NVMEOF_IMAGE = 'quay.io/ceph/nvmeof:1.2.5'
-DEFAULT_LOKI_IMAGE = 'docker.io/grafana/loki:2.4.0'
-DEFAULT_PROMTAIL_IMAGE = 'docker.io/grafana/promtail:2.4.0'
+DEFAULT_LOKI_IMAGE = 'docker.io/grafana/loki:3.0.0'
+DEFAULT_PROMTAIL_IMAGE = 'docker.io/grafana/promtail:3.0.0'
 DEFAULT_ALERT_MANAGER_IMAGE = 'quay.io/prometheus/alertmanager:v0.25.0'
 DEFAULT_GRAFANA_IMAGE = 'quay.io/ceph/grafana:9.4.12'
 DEFAULT_HAPROXY_IMAGE = 'quay.io/ceph/haproxy:2.3'

src/pybind/mgr/cephadm/templates/services/loki.yml.j2

@@ -26,3 +26,10 @@ schema_config:
       index:
         prefix: index_
         period: 24h
+    - from: 2024-05-03
+      store: tsdb
+      object_store: filesystem
+      schema: v13
+      index:
+        prefix: index_
+        period: 24h

src/pybind/mgr/cephadm/tests/test_services.py

@@ -1046,6 +1046,13 @@ def test_loki_config(self, _run_cephadm, cephadm_module: CephadmOrchestrator):
                       store: boltdb-shipper
                       object_store: filesystem
                       schema: v11
+                      index:
+                        prefix: index_
+                        period: 24h
+                    - from: 2024-05-03
+                      store: tsdb
+                      object_store: filesystem
+                      schema: v13
                       index:
                         prefix: index_
                         period: 24h""").lstrip()