Merge branch 'feat/metrics-query-state' into 'master'

Feat: updated conditionals for metrics server installation

Closes platform-one/big-bang/apps/sandbox/metrics-server#4

See merge request platform-one/big-bang/bigbang!1801

chart/templates/metrics-server/gitrepository.yaml

-{{- if .Values.addons.metricsServer.enabled  }}
+{{- $enableFlag := .Values.addons.metricsServer.enabled | toString }}
+{{- $existingMetricsApi := (.Capabilities.APIVersions.Has "metrics.k8s.io/v1beta1") }}
+{{- $existingMetricsHelmRelease := (lookup "helm.toolkit.fluxcd.io/v2beta1" "HelmRelease" "bigbang" "metrics-server") }}
+{{- if or ( eq $enableFlag "true") (and (eq $enableFlag "auto") (or (not $existingMetricsApi) $existingMetricsHelmRelease)) }}
 apiVersion: source.toolkit.fluxcd.io/v1beta1
 kind: GitRepository
 metadata:

chart/templates/metrics-server/helmrelease.yaml

 {{- $fluxSettingsMetrics := merge .Values.addons.metricsServer.flux .Values.flux -}}
-{{- if .Values.addons.metricsServer.enabled }}
+{{- $enableFlag := .Values.addons.metricsServer.enabled | toString }}
+{{- $existingMetricsApi := (.Capabilities.APIVersions.Has "metrics.k8s.io/v1beta1") }}
+{{- $existingMetricsHelmRelease := (lookup "helm.toolkit.fluxcd.io/v2beta1" "HelmRelease" "bigbang" "metrics-server") }}
+{{- if or ( eq $enableFlag "true") (and (eq $enableFlag "auto") (or (not $existingMetricsApi) $existingMetricsHelmRelease)) }}
 apiVersion: helm.toolkit.fluxcd.io/v2beta1
 kind: HelmRelease
 metadata:

chart/templates/metrics-server/imagepullsecret.yaml

-{{- if .Values.addons.metricsServer.enabled }}
+{{- $enableFlag := .Values.addons.metricsServer.enabled | toString }}
+{{- $existingMetricsApi := (.Capabilities.APIVersions.Has "metrics.k8s.io/v1beta1") }}
+{{- $existingMetricsHelmRelease := (lookup "helm.toolkit.fluxcd.io/v2beta1" "HelmRelease" "bigbang" "metrics-server") }}
+{{- if or ( eq $enableFlag "true") (and (eq $enableFlag "auto") (or (not $existingMetricsApi) $existingMetricsHelmRelease)) }}
 {{- if ( include "imagePullSecret" . ) }}
 apiVersion: v1
 kind: Secret

chart/templates/metrics-server/namespace.yaml

-{{- if .Values.addons.metricsServer.enabled }}
+{{- $enableFlag := .Values.addons.metricsServer.enabled | toString }}
+{{- $existingMetricsApi := (.Capabilities.APIVersions.Has "metrics.k8s.io/v1beta1") }}
+{{- $existingMetricsHelmRelease := (lookup "helm.toolkit.fluxcd.io/v2beta1" "HelmRelease" "bigbang" "metrics-server") }}
+{{- if or ( eq $enableFlag "true") (and (eq $enableFlag "auto") (or (not $existingMetricsApi) $existingMetricsHelmRelease)) }}
 apiVersion: v1
 kind: Namespace
 metadata:

chart/templates/metrics-server/values.yaml

-{{- if .Values.addons.metricsServer.enabled }}
-{{- include "values-secret" (dict "root" $ "package" .Values.addons.metricsServer "name" "metrics" "defaults" (include "bigbang.defaults.metrics" .)) }}
+{{- $enableFlag := .Values.addons.metricsServer.enabled | toString }}
+{{- $existingMetricsApi := (.Capabilities.APIVersions.Has "metrics.k8s.io/v1beta1") }}
+{{- $existingMetricsHelmRelease := (lookup "helm.toolkit.fluxcd.io/v2beta1" "HelmRelease" "bigbang" "metrics-server") }}
+{{- if or ( eq $enableFlag "true") (and (eq $enableFlag "auto") (or (not $existingMetricsApi) $existingMetricsHelmRelease)) }}
+{{- include "values-secret" (dict "root" $ "package" .Values.addons.metricsServer "name" "metrics" "defaults" (include "bigbang.defaults.metrics-server" .)) }}
 {{- end }}
 
-{{- define "bigbang.defaults.metrics" -}}
+{{- define "bigbang.defaults.metrics-server" -}}
 # hostname is deprecated and replaced with domain. But if hostname exists then use it.
 {{- $domainName := default .Values.domain .Values.hostname }}
 domain: {{ $domainName }}
@@ -26,4 +29,4 @@ networkPolicies:
   enabled: {{ .Values.networkPolicies.enabled }}
   controlPlaneCidr: {{ .Values.networkPolicies.controlPlaneCidr }}
 
-{{- end }}
+{{- end }}
\ No newline at end of file

chart/values.yaml

@@ -1366,8 +1366,10 @@ addons:
   # Metrics Server
   #
   metricsServer:
-    # -- Toggle deployment of metrics server.
-    enabled: false
+    # -- Toggle deployment of metrics server
+    # Acceptable options are enabled: true, enabled: false, enabled: auto
+    # true = enabled / false = disabled / auto = automatic (Installs only if metrics API endpoint is not present)
+    enabled: auto
     git:
       repo: https://repo1.dso.mil/platform-one/big-bang/apps/sandbox/metrics-server.git
       path: "./chart"