feat(argocd-image-updater): Add custom environment variables into deployment

Signed-off-by: Sergiy Gavrylenko <sgavrylenko@domovoy.org.ua>

charts/argocd-image-updater/templates/deployment.yaml

@@ -51,6 +51,12 @@ spec:
                 optional: true
           - name: IMAGE_UPDATER_LOGLEVEL
             value: {{ .Values.config.logLevel }}
+          {{- if .Values.config.customEnvVariables }}
+          {{- range $key, $value := .Values.config.customEnvVariables }}
+          - name: {{ $key }}
+            value: {{ $value | quote }}
+          {{- end }}
+          {{- end }}
           securityContext:
             {{- toYaml .Values.securityContext | nindent 12 }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"

charts/argocd-image-updater/values.yaml

@@ -39,6 +39,10 @@ config:
     # -- If specified, use an unencrypted HTTP connection to the ArgoCD API instead of TLS.
     plaintext: false
 
+  customEnvVariables:
+    # Add some custom variables e.g. set AWS region during retrieve the ECR token
+    # AWS_REGION: us-west-1
+
   # -- ArgoCD Image Update log level
   logLevel: "info"