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Overview

MariaDB is an open-source relational database management system and a drop-in replacement for MySQL. This template deploys a single-replica MariaDB instance with persistent storage and an optional phpMyAdmin web interface for database management.
MariaDB on Control Plane operates as a single-replica deployment. Do not scale up the replica count, as this would result in multiple isolated instances rather than a replicated cluster.

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What Gets Created

  • MariaDB Workload — A single-replica MariaDB database container with configurable resources.
  • Volume Set — Persistent storage for MariaDB data, with optional autoscaling.
  • Secret — An opaque secret storing the database name, root password, and user credentials, injected into the container at startup.
  • Identity & Policy — An identity bound to the workload with reveal access to the database credentials secret.
  • phpMyAdmin Workload (optional) — A web-based database management interface. Enabled when enablePhpMyAdmin: true.
This template does not create a GVC. You must deploy it into an existing GVC.

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Installation

This template has no external prerequisites. To install, follow the instructions for your preferred method:

UI

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CLI

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Terraform

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Pulumi

Declare templates in your Pulumi programs

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Configuration

The default values.yaml for this template: 
image: mariadb:10

resources:
  minCpu: 100m
  minMemory: 128Mi
  maxCpu: 250m
  maxMemory: 264Mi

timeoutSeconds: 15

config:
  db: db
  rootPassword: root-pw
  user: user
  password: pw

volumeset:
  capacity: 10 # initial capacity in GiB (minimum is 10)
  autoscaling:
    enabled: false
    maxCapacity: 100 # Maximum capacity in GiB
    minFreePercentage: 10 # Trigger scaling when free space drops below this percentage
    scalingFactor: 1.2 # Multiply current capacity by this factor when scaling up

internalAccess:
  type: same-gvc # options: none, same-gvc, same-org, workload-list
  workloads: # Note: can only be used if type is same-gvc or workload-list
    #- //gvc/GVC_NAME/workload/WORKLOAD_NAME

enablePhpMyAdmin: true

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Credentials

  • config.db — Name of the database created on startup.
  • config.rootPassword — Password for the MariaDB root user. Change before deploying to production.
  • config.user — Name of the non-root database user created on startup.
  • config.password — Password for the non-root user. Change before deploying to production.
These values are only applied on first startup when the data directory is empty. Updating them after the initial deployment will have no effect on the running database. To change credentials or the database name on an existing instance, use MariaDB’s native commands (e.g. ALTER USER, RENAME DATABASE).

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Resources

  • resources.minCpu / resources.minMemory — Minimum CPU and memory guaranteed to the workload.
  • resources.maxCpu / resources.maxMemory — Maximum CPU and memory the workload can use.
  • timeoutSeconds — Workload timeout in seconds.

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Storage

  • volumeset.capacity — Initial volume size in GiB (minimum 10).
  • volumeset.autoscaling.enabled — Automatically expand the volume as it fills. When enabled:
    • maxCapacity — Maximum volume size in GiB.
    • minFreePercentage — Trigger a scale-up when free space drops below this percentage.
    • scalingFactor — Multiply the current capacity by this factor when scaling up.

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Internal Access

  • internalAccess.type — Controls which workloads can connect to MariaDB on port 3306:
TypeDescription
noneNo internal access allowed
same-gvcAllow access from all workloads in the same GVC
same-orgAllow access from all workloads in the same organization
workload-listAllow access only from specific workloads listed in workloads

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phpMyAdmin

  • enablePhpMyAdmin — When true, deploys a phpMyAdmin workload for browser-based database management. Disable by setting to false.

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Connecting to MariaDB

Once deployed, connect to the database from within the same GVC using: 
RELEASE_NAME-maria.GVC_NAME.cpln.local:3306

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External References

MariaDB Documentation

Official MariaDB documentation

phpMyAdmin Documentation

phpMyAdmin user documentation

MariaDB Template

View the source files, default values, and chart definition