Unable to access Wordpress site created as a Docker Stack [closed]
I am trying to create a Wordpress site inside a Docker stack composed of the following services:
-
wordpress
- the Wordpress site itself -
db
- the MySQL container
I have the following stack.yml
file:
version: '3.1'
networks:
abtehnic:
services:
db:
image: mysql:latest
restart: always
networks:
- abtehnic
environment:
MYSQL_ROOT_PASSWORD: XXXXX
MYSQL_DATABASE: wordpress
MYSQL_USER: wordpress
MYSQL_PASSWORD: barbu123
wordpress:
image: abtehnic-wordpress
depends_on:
- db
restart: always
ports:
- 80
environment:
WORDPRESS_DB_HOST: db:3306
WORDPRESS_DB_USER: wordpress
WORDPRESS_DB_PASSWORD: wordpress
WORDPRESS_DB_PASSWORD: barbu123
networks:
- abtehnic
volumes:
- ./source:/var/www/html
I deploy the stack with the following command:
$ docker stack deploy -c stack.yml abtehnic
The docker ps
command outputs the following:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
256e65fe2c4c mysql:latest "docker-entrypoint..." About a minute ago Up About a minute 3306/tcp abtehnic_db.1.mo0xp17adt2jocu9yivkzg19g
26481d8bab95 wordpress:4.8 "docker-entrypoint..." About a minute ago Up About a minute 80/tcp abtehnic_wordpress.1.tiikrjwm1kcmxjg7v74vrcquw
I am trying to find out the mapped port via:
$ docker port <container_id for wordpress>
and its output is empty. Also when I am running docker logs <container_id_for_wordpress>
I get the following:
Warning: mysqli::mysqli(): php_network_getaddresses: getaddrinfo failed: Name or service not known in - on line 22
Warning: mysqli::mysqli(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in - on line 22
MySQL Connection Error: (2002) php_network_getaddresses: getaddrinfo failed: Name or service not known
Warning: mysqli::mysqli(): (HY000/2002): Connection refused in - on line 22
MySQL Connection Error: (2002) Connection refused
Warning: mysqli::mysqli(): (HY000/2002): Connection refused in - on line 22
MySQL Connection Error: (2002) Connection refused
MySQL Connection Error: (2002) Connection refused
Warning: mysqli::mysqli(): (HY000/2002): Connection refused in - on line 22
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.3. Set the 'ServerName' directive globally to suppress this message
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.3. Set the 'ServerName' directive globally to suppress this message
[Sat Oct 28 16:05:32.189285 2017] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.10 (Debian) PHP/5.6.31 configured -- resuming normal operations
[Sat Oct 28 16:05:32.189321 2017] [core:notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND'
Here are my questions:
- Why can't the
wordpress
container access thedb
container? - Why isn't there any port that I can use to access the Wordpress site from my host?
depends_on:
- db
That just makes sure the database container is fully loaded before the wordpress container. You need to tell docker to link the db
container from the wordpress
container to reference it by name.
What docker-compose does under the hood is take the ip docker gives the db
container and add a /etc/hosts
entry to the wordpress
container so you can reference it by name.
So try adding this to the wordpress section
links:
- db