Olares/docs/developer/develop/mw-integrate-with-mariadb.md

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2 3	Learn how to integrate your app with MariaDB service in beOS Pro.

Integrate with MariaDB

Use beOS Pro MariaDB middleware by declaring it in beOS ProManifest.yaml, then mapping the injected values to your container environment variables.

Install MariaDB service

Install the MariaDB service from Market.

1. Open Market from Launchpad and search for "MariaDB".
2. Click Get, then Install, and wait for the installation to complete.

Once installed, the service and its connection details will appear in the Middleware list in Control Hub.

Configure beOS ProManifest.yaml

In beOS ProManifest.yaml, add the required middleware configuration.

• Use the username field to specify the database username.
• Use the databases field to request one or more databases. Each database name is used as the key in .Values.mariadb.databases.

Example

middleware:
  mariadb:
    username: mariadbclient
    databases:
      - name: aaa

Map to environment variables

In your deployment YAML, map the injected .Values.mariadb.* fields to the container environment variables your app requires.

Example

containers:
  - name: my-app
    # For MariaDB, the corresponding value is as follows
    env:
      - name: MDB_HOST
        value: "{{ .Values.mariadb.host }}"
      
      - name: MDB_PORT
        value: "{{ .Values.mariadb.port }}"
      
      - name: MDB_USER
        value: "{{ .Values.mariadb.username }}"
      
      - name: MDB_PASSWORD
        value: "{{ .Values.mariadb.password }}"
      
      # Database Name
      # The database name configured in beOS ProManifest (e.g., aaa)
      - name: MDB_DB
        value: "{{ .Values.mariadb.databases.aaa }}"

MariaDB values reference

MariaDB values are predefined runtime values injected into values.yaml during deployment. They are system-managed and not user-editable.

Value	Type	Description
.Values.mariadb.host	String	MariaDB host.
.Values.mariadb.port	Number	MariaDB port.
.Values.mariadb.username	String	MariaDB username.
.Values.mariadb.password	String	MariaDB password.
.Values.mariadb.databases	Map<String,String>	Requested databases, keyed by database name. For example, a request for app_db is available at .Values.mariadb.databases.app_db.