Copy over kah library

charts/library/common/templates/addons/promtail/_configmap.tpl

@@ -0,0 +1,35 @@
+{{/*
+The promtail config to be included.
+*/}}
+{{- define "common.addon.promtail.configmap" -}}
+{{- if .Values.addons.promtail.enabled }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "common.names.fullname" . }}-promtail
+  labels: {{- include "common.labels" $ | nindent 4 }}
+  annotations: {{- include "common.annotations" $ | nindent 4 }}
+data:
+  promtail.yaml: |
+    server:
+      http_listen_port: 9080
+      grpc_listen_port: 0
+    positions:
+      filename: /tmp/positions.yaml
+    {{- with .Values.addons.promtail.loki }}
+    client:
+      url: {{ . }}
+    {{- end }}
+    scrape_configs:
+    {{- range .Values.addons.promtail.logs }}
+    - job_name: {{ .name }}
+      static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: {{ .name }}
+          __path__: "{{ .path }}"
+    {{- end }}
+{{- end -}}
+{{- end -}}

charts/library/common/templates/addons/promtail/_container.tpl

@@ -0,0 +1,39 @@
+{{/*
+The promtail sidecar container to be inserted.
+*/}}
+{{- define "common.addon.promtail.container" -}}
+{{- if lt (len .Values.addons.promtail.volumeMounts) 1 }}
+{{- fail "At least 1 volumeMount is required for the promtail container" }}
+{{- end -}}
+name: promtail
+image: "{{ .Values.addons.promtail.image.repository }}:{{ .Values.addons.promtail.image.tag }}"
+imagePullPolicy: {{ .Values.addons.promtail.pullPolicy }}
+{{- with .Values.addons.promtail.securityContext }}
+securityContext:
+  {{- toYaml . | nindent 2 }}
+{{- end }}
+{{- with .Values.addons.promtail.env }}
+env:
+{{- range $k, $v := . }}
+  - name: {{ $k }}
+    value: {{ $v | quote }}
+{{- end }}
+{{- end }}
+args:
+{{- range .Values.addons.promtail.args }}
+- {{ . | quote }}
+{{- end }}
+- "-config.file=/etc/promtail/promtail.yaml"
+volumeMounts:
+  - name: promtail-config
+    mountPath: /etc/promtail/promtail.yaml
+    subPath: promtail.yaml
+    readOnly: true
+{{- with .Values.addons.promtail.volumeMounts }}
+  {{- toYaml . | nindent 2 }}
+{{- end }}
+{{- with .Values.addons.promtail.resources }}
+resources:
+  {{- toYaml . | nindent 2 }}
+{{- end }}
+{{- end -}}

charts/library/common/templates/addons/promtail/_promtail.tpl

@@ -0,0 +1,25 @@
+{{/*
+Template to render promtail addon
+It will include / inject the required templates based on the given values.
+*/}}
+{{- define "common.addon.promtail" -}}
+{{- if .Values.addons.promtail.enabled -}}
+  {{/* Append the promtail container to the additionalContainers */}}
+  {{- $container := include "common.addon.promtail.container" . | fromYaml -}}
+  {{- if $container -}}
+    {{- $_ := set .Values.additionalContainers "addon-promtail" $container -}}
+  {{- end -}}
+
+  {{/* Include the configmap if not empty */}}
+  {{- $configmap := include "common.addon.promtail.configmap" . -}}
+  {{- if $configmap -}}
+    {{- $configmap | nindent 0 -}}
+  {{- end -}}
+
+  {{/* Append the promtail config volume to the volumes */}}
+  {{- $volume := include "common.addon.promtail.volumeSpec" . | fromYaml -}}
+  {{- if $volume -}}
+    {{- $_ := set .Values.persistence "promtail-config" (dict "enabled" "true" "mountPath" "-" "type" "custom" "volumeSpec" $volume) -}}
+  {{- end -}}
+{{- end -}}
+{{- end -}}

charts/library/common/templates/addons/promtail/_volume.tpl

@@ -0,0 +1,7 @@
+{{/*
+The volume (referencing config) to be inserted into additionalVolumes.
+*/}}
+{{- define "common.addon.promtail.volumeSpec" -}}
+configMap:
+  name: {{ include "common.names.fullname" . }}-promtail
+{{- end -}}