Deploy Mattermost

Mattermost is an open source messaging platform with an easy-to-use and familiar web interface. It is customizable and can run as a simple standalone web server or as a complex, clustered, multi-process service connected to separate database, object storage, LDAP directory, search engine, and mail service, among other things. All of these configurations can be installed on Render.

In this tutorial, you'll run a Mattermost instance consisting of a Mattermost web service, a PostgreSQL database, and a MinIO object store backed by a persistent, snapshotted disk. Alternatively, if you just want Mattermost up and running, follow the one-click deploy steps.

One-Click Deploy

Click Deploy to Render below and follow the prompts to set up Mattermost on Render.

Manual Deploy

We'll be using github.com/render-examples/mattermost, so start by forking that repository.

Create the Database

Create a new PostgreSQL database on Render.

You'll need various properties from this database when you're creating the Mattermost service.

Create the MinIO Service

1. Go here to begin creating a new private service.

2. Use the forked Mattermost repository.

3. Add these two environment variables:

   Key	Value
   MINIO_ACCESS_KEY	Supply your own value or generate it
   MINIO_SECRET_KEY	Supply your own value or generate it

   These values will be needed for the Mattermost service later.

4. Add a disk with /data as the mount path.

5. Set the Docker build context directory to ./minio and the Dockerfile path to ./minio/Dockerfile.

6. Create the service.

Create the Mattermost Service

1. Go here to begin creating a new web service.

2. Use the forked Mattermost repository.

3. Add the following environment variables:

   Key	Value
   MM_SQLSETTINGS_DRIVERNAME	postgres
   MM_USERNAME	The username from the database created earlier
   MM_PASSWORD	The password from the database created earlier
   MM_DBNAME	The database name from the database created earlier
   DB_HOST	The hostname from the database created earlier
   MM_FILESETTINGS_DRIVERNAME	amazons3
   MM_FILESETTINGS_AMAZONS3BUCKET	mattermost
   MM_FILESETTINGS_AMAZONS3ACCESSKEYID	The MINIO_ACCESS_KEY from MinIO created earlier
   MM_FILESETTINGS_AMAZONS3SECRETACCESSKEY	The MINIO_SECRET_KEY from MinIO created earlier
   MM_FILESETTINGS_AMAZONS3ENDPOINT	The host:port from the MinIO created earlier
   MM_FILESETTINGS_AMAZONS3SSL	false

4. Add a disk with /mattermost/config as the mount path.

5. Set the Docker build context directory to ./app and the Dockerfile path to ./app/Dockerfile.

6. Create the service.

Your Mattermost cluster should be ready to use with regular backups and disk snapshots!