Synapse-Docker-Compose

Matrix Synapse Docker-Compose

1. Update docker-compose.yml
2. Update the hostname in swag/nginx/proxy-confs/synapse.subdomain.conf, swag/nginx/proxy-confs/element.subdomain.conf, and swag/nginx/proxy-confs/matrix-to.subdomain.conf approprieately.
3. Run docker-compose run --rm -e SYNAPSE_SERVER_NAME=yourdomain.tld -e SYNAPSE_REPORT_STATS=no synapse generate
4. Update ./files/homeserver.yaml
   • Update web_client_location to app.yourdomain.tld (Remember to remove the comment #)
   • Update public_baseurl to matrix.yourdomain.tld (Remember to remove the comment #)
   • Uncomment serve_server_wellknown to enable it and configure https://yourdoman.tld/.well-known/matrix/server for federation
   • Change pepper in your password config. Uncomment the setting to enable it.
   • Change the default database from SQLite to PostgreSQL
   • Configure the mail credentials if you have a mail server
   • Configure admin_contact in the homeserver blocking section
   • Enable encryption_enabled_by_default_for_room_type by default
   • Edit whatever else you might want to
5. Copy config.sample.json from https://github.com/vector-im/element-web to ./element/config.json and make the approriate adjustments
6. Tighten the Content Security Policy in swag/nginx/proxy-confs/element.subdomain.conf to suit your needs
7. Copy the config from https://github.com/matrix-org/pantalaimon to ./pantalaimon/pantalaimon.conf and edit it accordingly
8. Run docker-compose up and make sure nothing errors out. You can use docker-compose up -d to start it in the background if you want.
9. Uncomment the security options for postgres. Run docker-compose up -d again.
10. Create a user for mjolnir
11. Copy the config from https://github.com/matrix-org/mjolnir/blob/main/config/default.yaml to ./mjolnir/config/production.yaml and edit it accordingly. If you want Mjolnir to recieve reports instead of Synapse, make it listen on 0.0.0.0:8081. You will also need to uncomment the approprieate lines in ./swag/nginx/proxy-confs/synapse.subdomain.conf as well.

Notes

The CSP policies in swag/nginx/proxy-confs/element.subdomain.conf is slightly stricter on ArcticFoxes Element as it does not support third party servers:

add_header Content-Security-Policy "default-src 'none'; connect-src 'self' https://arcticfoxes.net https://matrix.arcticfoxes.net; font-src 'self'; img-src 'self' https://arcticfoxes.net https://matrix.arcticfoxes.net blob: data:; manifest-src 'self'; media-src 'self' https://matrix.arcticfoxes.net; script-src 'self' 'unsafe-eval' https://www.recaptcha.net https://www.gstatic.com; style-src 'self' 'unsafe-inline'; frame-src 'self' https://www.recaptcha.net blob:; frame-ancestors 'self'; block-all-mixed-content; base-uri 'none'";