Immich: Add Immich installer configuration

Change-Id: I88796e42d0b0b14d84b094d4a1c5213b43c56f2a
diff --git a/charts/immich/templates/immich-config.yml b/charts/immich/templates/immich-config.yml
new file mode 100644
index 0000000..1a23cf9
--- /dev/null
+++ b/charts/immich/templates/immich-config.yml
@@ -0,0 +1,15 @@
+{{- if .Values.immich.configuration }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Release.Name }}-immich-config
+  labels:
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/name: {{ .Chart.Name }}
+    app.kubernetes.io/version: {{ .Chart.AppVersion }}
+    helm.sh/chart: {{ printf "%s-%s\n" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+data:
+  immich-config.yaml: |
+{{- .Values.immich.configuration | toYaml | nindent 4 }}
+{{- end }}