Adding unbound as dns resolver

docs/compose/docker-compose.yml

@@ -1,4 +1,4 @@
-version: '2'
+version: '2.1'
 
 services:
 
@@ -27,12 +27,37 @@ services:
     - "$BIND_ADDRESS6:587:587"
     volumes:
       - "$ROOT/certs:/certs"
+    depends_on:
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - front
+
+  unbound:
+    image: mailu/unbound:$VERSION
+    restart: always
+    networks:
+      backend:
+        ipv4_address: ${IPV4_NETWORK:-172.22.1}.254
+        aliases:
+          - unbound
 
   redis:
     image: redis:alpine
     restart: always
     volumes:
       - "$ROOT/redis:/data"
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    depends_on:
+      - unbound
+    networks:
+      backend:
+        aliases:
+          - redis
 
   imap:
     image: mailu/dovecot:$VERSION
@@ -44,6 +69,13 @@ services:
       - "$ROOT/overrides:/overrides"
     depends_on:
       - front
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - imap
 
   smtp:
     image: mailu/postfix:$VERSION
@@ -54,6 +86,13 @@ services:
       - "$ROOT/overrides:/overrides"
     depends_on:
       - front
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - smtp
 
   antispam:
     image: mailu/rspamd:$VERSION
@@ -65,6 +104,13 @@ services:
       - "$ROOT/overrides/rspamd:/etc/rspamd/override.d"
     depends_on:
       - front
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - antispam
 
   antivirus:
     image: mailu/$ANTIVIRUS:$VERSION
@@ -72,6 +118,14 @@ services:
     env_file: .env
     volumes:
       - "$ROOT/filter:/data"
+    depends_on:
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - antivirus
 
   webdav:
     image: mailu/$WEBDAV:$VERSION
@@ -79,6 +133,14 @@ services:
     env_file: .env
     volumes:
       - "$ROOT/dav:/data"
+    depends_on:
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - webdav
 
   admin:
     image: mailu/admin:$VERSION
@@ -90,6 +152,13 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock:ro
     depends_on:
       - redis
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - admin
 
   webmail:
     image: "mailu/$WEBMAIL:$VERSION"
@@ -99,6 +168,13 @@ services:
       - "$ROOT/webmail:/data"
     depends_on:
       - imap
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - webmail
 
   fetchmail:
     image: mailu/fetchmail:$VERSION
@@ -106,3 +182,19 @@ services:
     env_file: .env
     volumes:
       - "$ROOT/data:/data"
+    depends_on:
+      - unbound
+    dns:
+      - ${IPV4_NETWORK:-172.22.1}.254
+    networks:
+      backend:
+        aliases:
+          - fetchmail
+
+networks:
+  backend:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        - subnet: ${IPV4_NETWORK:-172.22.1}.0/24