Add app.kubernetes.io/name Label & Remove Vendor

The 'vendor=crunchydata' label has been removed from all PostgreSQL
Operator Monitoring resources.  This ensures that PostgreSQL Operator
Monitoring resources are not inadvertently deleted when uninstalling
the PostgreSQL Operator, specifically in scenarios where the same
namespace utilized to deploy the PostgreSQL Operator Monitoring
infrastructure is also utilized to deploy PostgreSQL clusters.

Additionally, all resources created by the PostgreSQL Operator
Monitoring installer now have the following label:

app.kubernetes.io/name=postgres-operator-monitoring

This new label allows all PostgreSQL Operator Monitoring resources
within a Kubernetes cluster to be easily identified, and is also a
recommended label for Kubernetes resources per the Kubernetes
documentation.  It should be noted that this label is already being
applied to any installation resources created by Helm (however, this
commit does change "metrics" to "monitoring" in the Chart name, and
therefore this label, for all PostgreSQL Operator Monitoring Helm
installation resources).

Also removes the "Disabling Default Dashboards" section from the
PostgreSQL Operator documentation since the 'grafana_dashboards'
installation setting this section references no longer exists (Grafana
dashboards are now customized solely via ConfigMaps).

Issue: [ch9190]
Issue: [ch9216]

Author: andrewlecuyer

docs/content/installation/metrics/metrics-configuration.md

@@ -116,29 +116,6 @@ and tag as needed to use the RedHat certified containers:
 Additionally, these same settings can be utilized as needed to support custom image names,
 tags, and additional container registries.
 
-## Disabling Default Dashboards
-
-By default, the following Grafana Dashboards are enabled as provided by the [pgmonitor project](https://github.com/CrunchyData/pgmonitor):
-
-- Bloat_Details.json
-- CRUD_Details.json
-- PGBackrest.json
-- PG_Details.json
-- PG_Overview.json
-- TableSize_Details.json
-
-Using the `grafana-dashboard` configuration setting, it is possible to customize this list
-of dashboards, and therefore further control which dashboards are loaded into Grafana
-(specifically via the `grafana-dashboards` ConfigMap) by default.  For instance, the following
-setting can be utilized to enable only a subset of the default dashboards defined above:
-
-```yaml
-grafana_dashboards:
-  - CRUD_Details.json
-  - PG_Details.json
-  - PG_Overview.json
-```
-
 ## Helm Only Configuration Settings
 
 When using Helm, the following settings can be defined to control the image prefix and image tag

installers/metrics/ansible/roles/pgo-metrics/defaults/main.yml

@@ -1,4 +1,6 @@
 ---
+app_name: postgres-operator-monitoring
+
 kubernetes_context: ""
 kubernetes_in_cluster: "false"
 openshift_host: ""

installers/metrics/ansible/roles/pgo-metrics/tasks/alertmanager.yml

@@ -28,7 +28,8 @@
       shell: |
         {{ kubectl_or_oc }} create configmap {{ alertmanager_configmap }} --dry-run --output=yaml \ \
           --from-file={{ alertmanager_output_dir }}/alertmanager.yml \
-        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml vendor=crunchydata \
+        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml \
+          app.kubernetes.io/name={{ app_name }} \
         | {{ kubectl_or_oc }} create --filename=- -n {{ metrics_namespace }}
       when: alertmanager_custom_config == ""
       register: create_alertmanager_result
@@ -45,7 +46,8 @@
       shell: |
         {{ kubectl_or_oc }} create configmap {{ alertmanager_rules_configmap }} --dry-run --output=yaml \
           --from-file={{ alertmanager_output_dir }}/crunchy-alert-rules-pg.yml \
-        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml vendor=crunchydata \
+        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml \
+          app.kubernetes.io/name={{ app_name }} \
         | {{ kubectl_or_oc }} create --filename=- -n {{ metrics_namespace }}
       when: alertmanager_custom_rules_config == ""
       register: create_alertmanager_result

installers/metrics/ansible/roles/pgo-metrics/tasks/grafana.yml

@@ -72,7 +72,8 @@
       shell: |
         {{ kubectl_or_oc }} create configmap {{ grafana_datasources_configmap }} --dry-run --output=yaml \
           --from-file={{ grafana_output_dir }}/crunchy_grafana_datasource.yml \
-        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml vendor=crunchydata \
+        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml \
+          app.kubernetes.io/name={{ app_name }} \
         | {{ kubectl_or_oc }} create --filename=- -n {{ metrics_namespace }}
       when: grafana_datasources_custom_config == ""
       register: create_grafana_datasources_result
@@ -86,7 +87,8 @@
           --from-file={{ grafana_output_dir }}/crunchy_grafana_dashboards.yml \
           --from-file={{ pgmonitor_grafana_dir }}/containers/ \
         | sed -e 's,${DS_PROMETHEUS},PROMETHEUS,' \
-        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml vendor=crunchydata \
+        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml \
+          app.kubernetes.io/name={{ app_name }} \
         | {{ kubectl_or_oc }} create --filename=- -n {{ metrics_namespace }}
       when: grafana_dashboards_custom_config == ""
       register: create_grafana_dashboards_result

installers/metrics/ansible/roles/pgo-metrics/tasks/prometheus.yml

@@ -69,7 +69,8 @@
       shell: |
         {{ kubectl_or_oc }} create configmap crunchy-prometheus --dry-run --output=yaml \
           --from-file={{ prom_output_dir }}/prometheus.yml \
-        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml vendor=crunchydata \
+        | {{ kubectl_or_oc }} label --filename=- --local --dry-run --output=yaml \
+          app.kubernetes.io/name={{ app_name }} \
         | {{ kubectl_or_oc }} create --filename=- -n {{ metrics_namespace }}
       when: prometheus_custom_config == ""
       register: create_prometheus_datasources_result

installers/metrics/ansible/roles/pgo-metrics/templates/alertmanager-deployment.json.j2

@@ -4,22 +4,22 @@
     "metadata": {
         "name": "crunchy-alertmanager",
         "labels": {
-            "vendor": "crunchydata"
+            "app.kubernetes.io/name": "{{ app_name }}"
         }
     },
     "spec": {
         "replicas": 1,
         "selector": {
           "matchLabels": {
             "name": "{{ alertmanager_service_name }}",
-            "vendor": "crunchydata"
+            "app.kubernetes.io/name": "{{ app_name }}"
           }
         },
         "template": {
             "metadata": {
                 "labels": {
                     "name": "{{ alertmanager_service_name }}",
-                    "vendor": "crunchydata"
+                    "app.kubernetes.io/name": "{{ app_name }}"
                 }
             },
             "spec": {

installers/metrics/ansible/roles/pgo-metrics/templates/alertmanager-pvc.json.j2

@@ -4,7 +4,7 @@
     "metadata": {
         "name": "alertmanagerdata",
         "labels": {
-            "vendor": "crunchydata"
+            "app.kubernetes.io/name": "{{ app_name }}"
         }
     },
     "spec": {

installers/metrics/ansible/roles/pgo-metrics/templates/alertmanager-rbac.json.j2

@@ -4,7 +4,7 @@
     "metadata": {
         "name": "alertmanager",
         "labels": {
-            "vendor": "crunchydata"
+            "app.kubernetes.io/name": "{{ app_name }}"
         }
     },
     "automountServiceAccountToken": false,

installers/metrics/ansible/roles/pgo-metrics/templates/alertmanager-service.json.j2

@@ -5,7 +5,7 @@
         "name": "{{ alertmanager_service_name }}",
         "labels": {
             "name": "{{ alertmanager_service_name }}",
-            "vendor": "crunchydata"
+            "app.kubernetes.io/name": "{{ app_name }}"
         }
     },
     "spec": {

installers/metrics/ansible/roles/pgo-metrics/templates/grafana-deployment.json.j2

@@ -4,22 +4,22 @@
     "metadata": {
         "name": "crunchy-grafana",
         "labels": {
-            "vendor": "crunchydata"
+            "app.kubernetes.io/name": "{{ app_name }}"
         }
     },
     "spec": {
         "replicas": 1,
         "selector": {
           "matchLabels": {
             "name": "{{ grafana_service_name }}",
-            "vendor": "crunchydata"
+            "app.kubernetes.io/name": "{{ app_name }}"
           }
         },
         "template": {
             "metadata": {
                 "labels": {
                     "name": "{{ grafana_service_name }}",
-                    "vendor": "crunchydata"
+                    "app.kubernetes.io/name": "{{ app_name }}"
                 }
             },
             "spec": {