add docker-stack.yml for polipo

polipo/README.md

@@ -9,14 +9,16 @@ group.
 ## docker-compose.yml
 
 ```yaml
-polipo:
-  image: vimagick/polipo
-  command:
-    authCredentials=username:password
-    socksParentProxy=1.2.3.4:9050
-  ports:
-    - "8123:8123"
-  restart: always
+version: "3.8"
+services:
+  polipo:
+    image: vimagick/polipo
+    command:
+      authCredentials=username:password
+      socksParentProxy=1.2.3.4:9050
+    ports:
+      - "8123:8123"
+    restart: unless-stopped
 ```
 
 ## server

polipo/docker-compose.yml

@@ -1,8 +1,10 @@
-polipo:
-  image: vimagick/polipo
-  command:
-    authCredentials=username:password
-    socksParentProxy=1.2.3.4:9050
-  ports:
-    - "8123:8123"
-  restart: always
+version: "3.8"
+services:
+  polipo:
+    image: vimagick/polipo
+    command:
+      authCredentials=username:password
+      socksParentProxy=1.2.3.4:9050
+    ports:
+      - "8123:8123"
+    restart: unless-stopped

polipo/docker-stack.yml

@@ -0,0 +1,20 @@
+version: "3.8"
+
+services:
+
+  polipo:
+    image: vimagick/polipo
+    networks:
+      - host_network
+    deploy:
+      mode: global
+      placement:
+        constraints:
+          - node.role == worker
+      restart_policy:
+        condition: on-failure
+
+networks:
+  host_network:
+    external: true
+    name: host