This guide covers configuring continuous integration pipelines for projects that have a MariaDB dependency. If you’re new to Drone please read our Tutorial and build configuration guides first.

Basic Example

In the below example we demonstrate a pipeline that launches a MariaDB service container. The database server will be available at database:3306, where the hostname matches the service container name.

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kind: pipeline
name: default

steps:
- name: test
  image: mariadb
  commands:
  - sleep 15
  - mysql -u root -h database --execute="SELECT VERSION();"

services:
- name: database
  image: mariadb
  environment:
    MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
    MYSQL_DATABASE: test

Database Settings

The official MariaDB image provides environment variables used at startup to create the default username, password, database and more. Please see the official image documentation for more details.

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services:
- name: database
  image: mariadb
  environment:
    MYSQL_DATABASE: test
    MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'

Common Problems

Initialization

If you are unable to connect to the MariaDB container please make sure you are giving MariaDB adequate time to initialize and begin accepting connections.

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kind: pipeline
name: default

steps:
- name: test
  image: mariadb
  commands:
  - sleep 15
  - mysql -u root -h database

Incorrect Hostname

You cannot use 127.0.0.1 or localhost to connect with the MariaDB container. If you are unable to connect to MariaDB please verify you are using the correct hostname, corresponding with the name of the container.

Bad:

steps:
- name: test
  image: mariadb
  commands:
  - sleep 15
  - mysql -u root -h localhost

Good:

steps:
- name: test
  image: mariadb
  commands:
  - sleep 15
  - mysql -u root -h database

services:
- name: database
  image: mariadb