Self-host Matrix Synapse (Postgres) with Docker

A Matrix homeserver backed by Postgres, for self-hosted federated chat and voice/video signaling. This page describes the Levelrail template for Matrix Synapse (Postgres) (Communication). It deploys the services below as one Docker Compose app on your own server. Project site: https://element-hq.github.io/synapse/latest/. Recommended memory: about 1024 MiB.

Services, ports and volumes

Service	Image	Container ports	Volumes
`postgres`	`postgres:16-alpine`	none	`synapse_postgres_data -> /var/lib/postgresql/data`
`synapse`	`matrixdotorg/synapse:latest`	8008	`synapse_data -> /data`

Environment variables

Service	Variable	Value
`postgres`	`POSTGRES_DB`	Preset in the template
`postgres`	`POSTGRES_INITDB_ARGS`	Preset in the template
`postgres`	`POSTGRES_PASSWORD`	Generated at deploy
`postgres`	`POSTGRES_USER`	Preset in the template
`synapse`	`ADMIN_PASSWORD`	Generated at deploy
`synapse`	`ADMIN_USERNAME`	Generated at deploy
`synapse`	`DB_PASSWORD`	Generated at deploy
`synapse`	`ENABLE_REGISTRATION`	Preset in the template
`synapse`	`SYNAPSE_PUBLIC_BASEURL`	Preset in the template
`synapse`	`SYNAPSE_REPORT_STATS`	Preset in the template
`synapse`	`SYNAPSE_SERVER_NAME`	Preset in the template

Passwords and keys marked as generated are created for you when the app is deployed and stored as secrets. Values are not shown here.

Deploy Matrix Synapse (Postgres) with Levelrail

In the dashboard, open Apps, choose New app, then Browse templates, and select Matrix Synapse (Postgres). Review the Compose body and deploy. With the CLI:

levelrail-cli templates deploy matrix-synapse-postgres --name my-matrix-synapse-postgres

See the service template catalog for how templates work, and Getting started if you have not installed Levelrail yet.

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Self-host Matrix Synapse (Postgres) with Docker

Services, ports and volumes

Environment variables

Deploy Matrix Synapse (Postgres) with Levelrail

More Communication templates

​Services, ports and volumes

​Environment variables

​Deploy Matrix Synapse (Postgres) with Levelrail

​More Communication templates

Services, ports and volumes

Environment variables

Deploy Matrix Synapse (Postgres) with Levelrail

More Communication templates