Connecting to my local docker Database Instance from Table Plus

Question

I have created a local docker wordpress instance and I am trying to connect to the database with a SQL Client (in my case TablePlus) but I am having trouble.

I created the docker containers from a docker-compose.yml file shown here:

version: '3'

services:
   db:
     image: mysql:5.7
     volumes:
       - db_data:/var/lib/mysql
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: somewordpress
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: wordpress

   wordpress:
     depends_on:
       - db
     image: wordpress:latest
     ports:
       - "8028:80"
       - "8029:8029"

     volumes:
       - ./themes/travelmatic:/var/www/html/wp-content/themes/yadayada


     restart: always
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_USER: wordpress
       WORDPRESS_DB_PASSWORD: wordpress
       VIRTUAL_HOST: leasepilot.local

volumes:
    db_data:

I have tried any comibindation of wordpress and somewordpress in these fields:

I also have the option to connect over SSH but I don't feel I would need to do that?

1) What is the best way to debug this type of issue? 2) What are the creds? lol

Without a `ports:` declaration, your database will be inaccessible from outside of Docker. Finding the credentials is left as an exercise. — David Maze, Aug 08 '19 at 11:30

score 20 · Answer 1 · answered Oct 02 '20 at 12:25

There is another bit of information that should be added to the Praveen answer. If you have already mysql installed locally, on your computer/laptop, settings the db ports to:

- "3306:3306"

it won't work because TablePlus will connect to your local mysql instance. Instead you should set your Docker mysql on a different published port and access that from TablePlus.

For example, set these ports on your Dockerfile (published port is 3356):

"3356:3306"

Then set the same port on TablePlus:

score 13 · Accepted Answer · answered Aug 08 '19 at 11:51

Just as David has suggested in his comment, you need to add port mapping in docker-compose.yml. So, your modified docker-compose.yml would be something like this:

version: '3'

services:
   db:
     image: mysql:5.7
     volumes:
       - db_data:/var/lib/mysql
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: somewordpress
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: wordpress
     ports:
       - "3306:3306"   
   wordpress:
     depends_on:
       - db
     image: wordpress:latest
     ports:
       - "8028:80"
       - "8029:8029"

     volumes:
       - ./themes/travelmatic:/var/www/html/wp-content/themes/yadayada


     restart: always
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_USER: wordpress
       WORDPRESS_DB_PASSWORD: wordpress
       VIRTUAL_HOST: leasepilot.local

volumes:
    db_data:

And you have already provided the creds in the docker-compose.yml in environment variables.

Connecting to my local docker Database Instance from Table Plus

2 Answers2

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