[Helm] Adding support for plugins configuration

k8s/helm/templates/_helpers.tpl

@@ -84,3 +84,78 @@ Create a list of pod names based the number of replica.
 {{- end }}
 {{- join "," $names -}}
 {{- end }}
+
+{{/*
+Preparing a list of plugin ports to build plugin configurations.
+*/}}
+{{- define "_arcadedb.plugin.ports" -}}
+  {{- range $plugin, $config := .Values.arcadedb.plugins -}}
+    {{- if $config.enabled }}
+      {{- $port := int 0}}
+      {{- if eq $plugin "gremlin" }}
+        {{- $port = default 8082 $config.port }}
+      {{- else if eq $plugin "postgres" }}
+        {{- $port = default 5432 $config.port}}
+      {{- else if eq $plugin "mongo" }}
+        {{- $port = default 27017 $config.port }}
+      {{- else if eq $plugin "redis" }}
+        {{- $port = default 6379 }}
+      {{- else if eq $plugin "prometheus" }}
+        {{/*
+        Prometheus does not use a port in the plugin configuration. It is accessible from /prometheus endpoint.
+        */}}
+        {{- $port = -1 }}
+      {{- else }}
+        {{- if not $config.port }}
+          {{- fail (printf "Custom plugin '%s' has no port specified." $plugin) -}}
+        {{- end }}
+      {{- end }}
+{{ $plugin }}:
+  port: {{ $port }}
+  class: {{ default "" $config.class }}
+    {{- end }}
+  {{- end }}
+{{- end }}
+
+{{/*
+Create a comma separated list of plugins to be enabled in arcadedb
+*/}}
+{{- define "arcadedb.plugin.parameters" -}}
+{{- $plugins := list -}}
+  {{- range $plugin, $config := (include "_arcadedb.plugin.ports" . | fromYaml) }}
+    {{- if eq $plugin "gremlin" }}
+      {{- $plugins = append $plugins "GremlinServer:com.arcadedb.server.gremlin.GremlinServerPlugin" }}
+    {{- else if eq $plugin "postgres" }}
+      {{- $plugins = append $plugins "Postgres:com.arcadedb.postgres.PostgresProtocolPlugin" }}
+- {{- printf " -Darcadedb.postgres.port=%d" (int $config.port) -}}
+    {{- else if eq $plugin "mongo" }}
+      {{- $plugins = append $plugins "MongoDB:com.arcadedb.mongo.MongoDBProtocolPlugin" }}
+- {{- printf " -Darcadedb.mongo.port=%d" (int $config.port) -}}
+    {{- else if eq $plugin "redis" }}
+      {{- $plugins = append $plugins "Redis:com.arcadedb.redis.RedisProtocolPlugin" }}
+- {{- printf " -Darcadedb.redis.port=%d" (int $config.port) -}}
+    {{- else if eq $plugin "prometheus" }}
+      {{- $plugins = append $plugins "Prometheus:com.arcadedb.metrics.prometheus.PrometheusMetricsPlugin" }}
+    {{- else }}
+      {{- $plugins = append $plugins (printf "%s:%s" $plugin $config.class) }}
+    {{- end }}
+{{- end }}
+{{- if gt (len $plugins) 0 }}
+- {{- printf " -Darcadedb.server.plugins=%s" (join "," $plugins) -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create service configuration for the enabled plugins
+*/}}
+{{- define "arcadedb.plugin.service" -}}
+  {{- $plugins := (include "_arcadedb.plugin.ports" . | fromYaml) }}
+  {{- range $plugin, $config := $plugins }}
+    {{- if (gt (int $config.port) 0) }}
+- port: {{ $config.port }}
+  targetPort: {{ $config.port }}
+  protocol: TCP
+  name: {{ $plugin }}-port
+    {{- end -}}
+  {{- end -}}
+{{- end -}}

k8s/helm/templates/service.yaml

@@ -39,5 +39,6 @@ spec:
       targetPort: rpc
       protocol: TCP
       name: rpc
+    {{- include "arcadedb.plugin.service" . | nindent 4 }}
   selector:
     {{- include "arcadedb.selectorLabels" . | nindent 4 }}

k8s/helm/templates/statefulset.yaml

@@ -60,6 +60,7 @@ spec:
             {{- with .Values.arcadedb.extraCommands }}
             {{- toYaml . | nindent 12 }}
             {{- end }}
+            {{- include "arcadedb.plugin.parameters" . | nindent 12 }}
           {{- with .Values.livenessProbe }}
           livenessProbe:
             {{- toYaml . | nindent 12 }}

k8s/helm/values.yaml

@@ -28,6 +28,40 @@ arcadedb:
         ## @param arcadedb.credentials.rootPassword.secret.key Key to use in existing secret
         key: null
 
+  ## @section arcadedb.plugins in this section you can enable and configure the plugins available in ArcadeDB.
+  plugins: {}
+    # gremlin:
+    ## @param arcadedb.plugins.gremlin.enabled Enable Gremlin plugin
+    # enabled: true
+    ## @param arcadedb.plugins.gremlin.port Port for Gremlin HTTP service
+    # port: 8082
+    # postgres:
+    ## @param arcadedb.plugins.postgres.enabled Enable Postgres plugin
+    # enabled: true
+    ## @param arcadedb.plugins.postgres.port Port for Postgres service
+    # port: 5432
+    # mongo:
+    ## @param arcadedb.plugins.mongo.enabled Enable Mongo plugin
+    # enabled: false
+    ## @param arcadedb.plugins.mongo.port Port for Mongo service
+    # port: 27017
+    # redis:
+    ## @param arcadedb.plugins.redis.enabled Enable Redis plugin
+    # enabled: false
+    ## @param arcadedb.plugins.redis.port Port for Redis service
+    # port: 6379
+    # prometheus:
+    ## @param arcadedb.plugins.prometheus.enabled Enable Prometheus plugin
+    # enabled: false
+    ## The following plugin is commented out as they are an example how configure a custom plugin.
+    ## custom:
+    ## @param arcadedb.plugins.custom.enabled Enable custom plugin
+    ## enabled: false
+    ## @param arcadedb.plugins.custom.port Port for custom service
+    ## port: 1234
+    ## @param arcadedb.plugins.custom.class Class name for custom plugin
+    ## class: com.example.CustomPlugin
+
 ## @section image
 ## This sets the container image more information can be found here: https://kubernetes.io/docs/concepts/containers/images/
 image: