Updated the template to use version 2 and templatized mongo on whether an external link is provided

templates/wekan/1/docker-compose.yml.tpl

@@ -0,0 +1,42 @@
+version: '2'
+services:
+  wekan:
+    image: mquandalle/wekan
+    restart: always
+    labels:
+      traefik.enable: true
+      traefik.alias: ${WEKAN_HOST}
+      traefik.domain: ${WEKAN_DOMAIN}
+      traefik.acme: true
+      traefik.port: 80
+    {{- if ne .Values.host_label ""}}
+      io.rancher.scheduler.affinity:host_label: ${host_label}
+    {{- end}}
+    environment:
+      MONGO_URL: "mongodb://mongo/${MONGO_DB}"
+      ROOT_URL: "http://${WEKAN_HOST}.${WEKAN_DOMAIN}"
+{{- if ne .Values.mongo_link ""}}
+    external_links:
+      - ${mongo_link}:mongo
+    tty: true
+{{- else}}
+  mongo:
+    command: mongod --storageEngine=wiredTiger
+    restart: always
+    environment:
+      MONGO_SERVICE_NAME: mongo
+      CATTLE_SCRIPT_DEBUG: ${debug}
+    tty: true
+    image: mongo:3.4
+    labels:
+      io.rancher.container.hostname_override: container_name
+    {{- if ne .Values.host_label ""}}
+      io.rancher.scheduler.affinity:host_label: ${host_label}
+    {{- end}}
+    volumes:
+      - mongodata:/data/db
+volumes:
+  mongodata:
+    driver: ${VOLUME_DRIVER}
+    per_container: true
+{{- end}}