Refs #248 Split DNS into internal DNS (intdns) and Auto DNS (autodns)…

… to distinguish between PHP DNS queries and Host OS DNS queries
cytopia · Nov 6, 2018 · 7aaf2f0 · 7aaf2f0
1 parent cf328ef
commit 7aaf2f0
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Showing 3 changed files with 99 additions and 18 deletions.
diff --git a/docker-compose.override.yml-example b/docker-compose.override.yml-example
@@ -18,6 +18,5 @@ services:
         ipv4_address: 172.16.238.200
     # (Optional) For ease of use always automatically start these:
     depends_on:
-      - bind
       - php
       - httpd
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -25,17 +25,84 @@
 version: '2.1'
 
 
-################################################################################
+###################################################################################################
 # SERVICES
-################################################################################
+###################################################################################################
 services:
 
   # ------------------------------------------------------------
-  # Bind (DNS Server)
+  # Internal DNS for PHP container (Required)
   # ------------------------------------------------------------
-  bind:
+  # This container must always run and is only intended for the
+  # PHP-FPM container so that they are able to resolve custom
+  # DNS and direct all requests to the Devilbox http server.
+  intdns:
     image: cytopia/bind:0.15
     restart: always
+    environment:
+      ##
+      ## Debug?
+      ##
+      - DEBUG_ENTRYPOINT=${DEBUG_COMPOSE_ENTRYPOINT}
+
+      ##
+      ## ---- THIS LINE MAKES THE MAGIC HAPPEN ----
+      ##
+      ## Ensure all wildcard DNS requests from the PHP-Container
+      ## resolve to the Devilbox http server
+      ##
+      - WILDCARD_DNS=${TLD_SUFFIX:-loc}=172.16.238.11
+
+      ##
+      ## Add extra hosts to be resolvable
+      ##
+      - EXTRA_HOSTS=${EXTRA_HOSTS}
+
+      ##
+      ## Forwarding
+      ##
+      - DNS_FORWARDER=${BIND_DNS_RESOLVER:-8.8.8.8,8.8.4.4}
+
+      ##
+      ## Security
+      ##
+      - DNSSEC_VALIDATE=${BIND_DNSSEC_VALIDATE:-no}
+
+      ##
+      ## Time settings
+      ##
+      - TTL_TIME=${BIND_TTL_TIME}
+      - REFRESH_TIME=${BIND_REFRESH_TIME}
+      - RETRY_TIME=${BIND_RETRY_TIME}
+      - EXPIRY_TIME=${BIND_EXPIRY_TIME}
+      - MAX_CACHE_TIME=${BIND_MAX_CACHE_TIME}
+
+      ##
+      ## Query log
+      ##
+      - DOCKER_LOGS=${BIND_LOG_DNS_QUERIES}
+
+    dns:
+      - 127.0.0.1
+
+    # MacOS and Windows have this by default, this hack also allows it for Linux
+    extra_hosts:
+      docker.for.lin.host.internal: 172.16.238.1
+      docker.for.lin.localhost: 172.16.238.1
+
+    hostname: intdns
+    networks:
+      app_net:
+        ipv4_address: 172.16.238.100
+
+
+  # ------------------------------------------------------------
+  # AutoDNS: DNS for your host operating system (Optional)
+  # ------------------------------------------------------------
+  # This container is intended to provide Auto-DNS for your
+  # host operating system, if you wish so.
+  autodns:
+    image: cytopia/bind:0.15
     ports:
       # [local-machine:]local-port:docker-port
       - "${LOCAL_LISTEN_ADDR}${HOST_PORT_BIND:-1053}:53/tcp"
@@ -48,9 +115,17 @@ services:
       - DEBUG_ENTRYPOINT=${DEBUG_COMPOSE_ENTRYPOINT}
 
       ##
+      ## ---- THIS LINE MAKES THE MAGIC HAPPEN ----
+      ##
+      ## This line assigns the IP address on which the Devilbox is available
+      ## to your host operating system.
       ## Bind wildcard/host settings
       ##
-      - WILDCARD_DNS=${TLD_SUFFIX:-loc}=127.0.0.1
+      - WILDCARD_DNS=${TLD_SUFFIX:-loc}=${AUTODNS_HOST_ADDRESS}
+
+      ##
+      ## Add extra hosts to be resolvable
+      ##
       - EXTRA_HOSTS=${EXTRA_HOSTS}
 
       ##
@@ -85,10 +160,10 @@ services:
       docker.for.lin.host.internal: 172.16.238.1
       docker.for.lin.localhost: 172.16.238.1
 
-    hostname: bind
+    hostname: autodns
     networks:
       app_net:
-        ipv4_address: 172.16.238.100
+        ipv4_address: 172.16.238.101
 
 
   # ------------------------------------------------------------
@@ -199,7 +274,7 @@ services:
       - ${DEVILBOX_PATH}/ca:/ca:rw${MOUNT_OPTIONS}
 
     depends_on:
-      - bind
+      - intdns
 
 
   # ------------------------------------------------------------
@@ -291,7 +366,6 @@ services:
       - ${DEVILBOX_PATH}/ca:/ca:rw${MOUNT_OPTIONS}
 
     depends_on:
-      - bind
       - php
 
 
@@ -355,7 +429,6 @@ services:
       - ${HOST_PATH_MYSQL_DATADIR}/${MYSQL_SERVER}:/var/lib/mysql:rw${MOUNT_OPTIONS}
 
     depends_on:
-      - bind
       - php
       - httpd
 
@@ -392,7 +465,6 @@ services:
       - ${HOST_PATH_PGSQL_DATADIR}/${PGSQL_SERVER}:/var/lib/postgresql/data/pgdata:rw${MOUNT_OPTIONS}
 
     depends_on:
-      - bind
       - php
       - httpd
 
@@ -425,7 +497,6 @@ services:
       - ${DEVILBOX_PATH}/log/redis-${REDIS_SERVER}:/var/log/redis:rw${MOUNT_OPTIONS}
 
     depends_on:
-      - bind
       - php
       - httpd
 
@@ -453,7 +524,6 @@ services:
       - ${DEVILBOX_PATH}/log/memcd-${MEMCD_SERVER}:/var/log/memcd:rw${MOUNT_OPTIONS}
 
     depends_on:
-      - bind
       - php
       - httpd
 
@@ -481,14 +551,13 @@ services:
       - ${HOST_PATH_MONGO_DATADIR}/${MONGO_SERVER}:/data/db:rw${MOUNT_OPTIONS}
 
     depends_on:
-      - bind
       - php
       - httpd
 
 
-################################################################################
+###################################################################################################
 # NETWORK
-################################################################################
+###################################################################################################
 networks:
   app_net:
     driver: bridge

diff --git a/env-example b/env-example
@@ -628,7 +628,7 @@ HOST_PORT_MONGO=27017
 
 ################################################################################
 ###
-### 10. Bind Docker Settings
+### 10. AutoDNS Settings
 ###
 ################################################################################
 
@@ -637,6 +637,19 @@ HOST_PORT_MONGO=27017
 ###
 HOST_PORT_BIND=1053
 
+###
+### The IP address to which direct all DNS resolutions.
+###
+### This settings really depend on where you want to access your Devilbox projects
+### from your host computer's browser.
+###
+### If you access the Devilbox on 127.0.0.1, then set this to 127.0.0.1
+### If however you're running Docker Toolbox and the Devilbox IP address is something
+### like 192.168.99.100, then set it to 192.168.99.100. (Note, this is only an example)
+### In case of Docker Toolbox, you will have to find out the IP address first.
+###
+AUTODNS_HOST_ADDRESS=127.0.0.1
+
 ###
 ### Add comma separated DNS server from which you want to receive DNS
 ### You can also add DNS servers from your LAN (if any are available)