sliding-sync-proxy: Add support for init containers.

charts/sliding-sync-proxy/templates/deployment.yaml

@@ -28,6 +28,24 @@ spec:
       {{- end }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      {{- if .Values.initContainers }}
+      initContainers:
+        {{- $initContainers := list }}
+        {{- range $index, $key := (keys .Values.initContainers | uniq | sortAlpha) }}
+          {{- $container := get $.Values.initContainers $key }}
+          {{- if not $container.name -}}
+            {{- $_ := set $container "name" $key }}
+          {{- end }}
+          {{- if $container.env -}}
+            {{- $_ := set $ "ObjectValues" (dict "envVars" $container.env) -}}
+            {{- $newEnv := fromYaml (include "lib.container.envVars" $) -}}
+            {{- $_ := unset $.ObjectValues "envVars" -}}
+            {{- $_ := set $container "env" $newEnv.env }}
+          {{- end }}
+          {{- $initContainers = append $initContainers $container }}
+        {{- end }}
+        {{- tpl (toYaml $initContainers) $ | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ .Chart.Name }}
           securityContext:

charts/sliding-sync-proxy/templates/lib/container/_env_vars.tpl

@@ -0,0 +1,43 @@
+{{/*
+Environment variables used by containers.
+*/}}
+{{- define "lib.container.envVars" -}}
+  {{- $values := .Values.env -}}
+  {{- if hasKey . "ObjectValues" -}}
+    {{- with .ObjectValues.envVars -}}
+      {{- $values = . -}}
+    {{- end -}}
+  {{- end -}}
+
+  {{- with $values -}}
+    {{- $result := list -}}
+    {{- range $k, $v := . -}}
+      {{- $name := $k -}}
+      {{- $value := $v -}}
+      {{- if kindIs "int" $name -}}
+        {{- $name = required "environment variables as a list of maps require a name field" $value.name -}}
+      {{- end -}}
+
+      {{- if kindIs "map" $value -}}
+        {{- if hasKey $value "value" -}}
+          {{- $envValue := $value.value | toString -}}
+          {{- $result = append $result (dict "name" $name "value" (tpl $envValue $)) -}}
+        {{- else if hasKey $value "valueFrom" -}}
+          {{- $result = append $result (dict "name" $name "valueFrom" $value.valueFrom) -}}
+        {{- else -}}
+          {{- $result = append $result (dict "name" $name "valueFrom" $value) -}}
+        {{- end -}}
+      {{- end -}}
+      {{- if not (kindIs "map" $value) -}}
+        {{- if kindIs "string" $value -}}
+          {{- $result = append $result (dict "name" $name "value" (tpl $value $)) -}}
+        {{- else if or (kindIs "float64" $value) (kindIs "bool" $value) -}}
+          {{- $result = append $result (dict "name" $name "value" ($value | toString)) -}}
+        {{- else -}}
+          {{- $result = append $result (dict "name" $name "value" $value) -}}
+        {{- end -}}
+      {{- end -}}
+    {{- end -}}
+    {{- toYaml (dict "env" $result) | nindent 0 -}}
+  {{- end -}}
+{{- end -}}

charts/sliding-sync-proxy/values.yaml

@@ -17,6 +17,15 @@ extraEnv: {}
   # SYNCV3_DEBUG: "true"
 
 imagePullSecrets: []
+#initContainers:
+#  01-init-db:
+#    image: ghcr.io/onedr0p/postgres-init:14.9
+#    imagePullPolicy: IfNotPresent
+#    envFrom: &envFrom
+#      - configMapRef:
+#          name: &configMap synapse-configmap
+#      - secretRef:
+#          name: &secret synapse-secret
 nameOverride: ""
 fullnameOverride: ""