compose-anything/apps/mattermost/README.md

Mattermost

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Mattermost is an open-source team collaboration platform that provides chat, file sharing, channels, and integrations. This Compose stack includes Mattermost plus PostgreSQL and is designed to start with a single docker compose up -d.

Quick Start

1. Copy the example environment file:

   cp .env.example .env
   

2. Edit .env if you want to change the port, site URL, or database password.

3. Start the stack:

   docker compose up -d
   

4. Open Mattermost:

   • http://localhost:8065

5. Complete the first-run wizard to create the initial system admin account.

Default Ports

Service	Port	Description
Mattermost	8065	Web UI and API
PostgreSQL	5432	Internal database only

Important Environment Variables

Variable	Description	Default
MATTERMOST_VERSION	Mattermost Team Edition image tag	11.3
MATTERMOST_PORT_OVERRIDE	Host port for Mattermost	8065
MATTERMOST_SITE_URL	Public URL used by Mattermost	http://localhost:8065
POSTGRES_DB	PostgreSQL database name	mattermost
POSTGRES_USER	PostgreSQL user	mmuser
POSTGRES_PASSWORD	PostgreSQL password	mmchangeit
MATTERMOST_ENABLE_LOCAL_MODE	Enables local mode for administrative commands	false
TZ	Container timezone	UTC

Volumes

• mattermost_postgres_data: PostgreSQL data.
• mattermost_config: Mattermost config directory.
• mattermost_data: Uploaded files and application data.
• mattermost_logs: Application logs.
• mattermost_plugins: Server-side plugins.
• mattermost_client_plugins: Webapp plugins.
• mattermost_bleve_indexes: Search indexes.

Notes

• The application depends on PostgreSQL and waits until the database is healthy before booting.
• The default setup uses Team Edition.
• If you expose Mattermost behind a reverse proxy or different hostname, update MATTERMOST_SITE_URL.

References

• Mattermost Repository
• Mattermost Team Edition Image