Set up Docker Swarm and abra
Deploy coop-cloud/traefik
abra app new matrix-synapse --secrets (optionally with --pass if you'd like to save secrets in pass)
abra app config YOURAPPDOMAIN - be sure to change $DOMAIN to something that resolves to your Docker swarm box
abra app deploy YOURAPPDOMAIN
Create an initial user: abra app run YOURAPPDOMAIN app register_new_matrix_user -c /data/homeserver.yaml http://localhost:8008

Tips & Tricks

Create User

register_new_matrix_user -u <username> -k $(cat /var/run/secrets/registration) -p <password>

Set Admin User

abra app cmd YOURAPPDOMAIN db set_admin <adminuser>

Disabling federation

Use DISABLE_FEDERATION=1 to turn off federation listeners
Don't use compose.matrix.yml in your traefik config to keep the federation ports closed

Enabling federation

See #27 for more. Depending on your setup, using SERVE_SERVER_WELLKNOWN=true might work to start federating. Make sure you don't leave DISABLE_FEDERATION=1 set!

Getting client discovery on a custom domain

You'll need to deploy something like this. This could be implemented in this recipe but we haven't merged it in yet. Change sets are welcome.

Bridges

For all Bridges:

Setting it up is a bit of a chicken/egg & chasing cats moment.
Make sure to uncomment APP_SERVICES_ENABLED, HOMESERVER_URL, HOMESERVER_DOMAIN, compose.shared_secret_auth.yml, SHARED_SECRET_AUTH_ENABLED and SECRET_SHARED_SECRET_AUTH_VERSION
include the registration in synapse, e.g. APP_SERVICE_CONFIGS="[\"/telegram-data/registration.yaml\"]"
and set yourself as admin, e.g.: TELEGRAM_BRIDGE_PERMISSIONS="{ \"*\": \"relaybot\", \"@akadmin:example.com\": \"admin\"}"

Telegram bridging

You need to get your bot setup on the telegram side first by creating a telegram app and a telegram bot and have these values:

api_id: ...
api_hash: ...
telegram_bot_token: ...

Experimental script for a automated token replacement:

DOMAIN=<domain>
abra app secret insert $DOMAIN telegram_api_hash v1 <secret>
abra app secret insert $DOMAIN telegram_bot_token v1 <secret>
abra app secret generate -a $DOMAIN

abra app deploy $DOMAIN
abra app cmd -l $DOMAIN set_bridge_tokens telegram

Alternatively a manual guide for the necessary steps:

DOMAIN=<domain>
abra app secret insert $DOMAIN telegram_api_hash v1 <secret>
abra app secret insert $DOMAIN telegram_bot_token v1 <secret>
abra app secret generate -a $DOMAIN

abra app deploy $DOMAIN
abra app run $DOMAIN telegrambridge cat /data/registration.yaml
abra app undeploy $DOMAIN

abra app secret rm $DOMAIN telegram_as_token
abra app secret insert $DOMAIN telegram_as_token v1 <secret>

abra app secret rm $DOMAIN telegram_hs_token
abra app secret insert $DOMAIN telegram_hs_token v1 <secret>

abra app deploy $DOMAIN

Some helpful documentation:

Discord bridging

WIP docs

Just as messy as the Telegram bridging above! Rough guide:

get a local copy of config.yaml
fill it out with the values you need, all the discord token stuff, etc.
run mkdir -p data && cp config.yaml data/ then docker run --rm -v data:/data halfshot/matrix-appservice-discord:v1.0.0 sh -c "cd /data && node /build/src/discordas.js -r -u "http://discordbridge:9005" -c config.yaml"
this generates the app service registration configuration you need to feed to the homeserver
run secret generation for the discord_db_password, insert your discord_bot_token
run abra app cp <domain> discord-registration.yaml app:/discord-data (it has to be called discord-registration.yaml)
deploy the bridge & happy hacking

Some helpful documentation:

Signal bridging

Experimental script for a more automated token replacement:

DOMAIN=<domain>
abra app secret generate -a $DOMAIN
abra app deploy $DOMAIN
abra app cmd -l $DOMAIN set_bridge_tokens signal

Alternatively a manual guide for the necessary steps:

DOMAIN=<domain>
abra app secret insert $DOMAIN signal_hs_token v1 foo
abra app secret insert $DOMAIN signal_as_token v1 foo
abra app secret generate $DOMAIN -a
abra app deploy $DOMAIN
abra app run $DOMAIN signalbridge cat /data/registration.yaml

abra app secret rm $DOMAIN signal_as_token
abra app secret insert $DOMAIN signal_as_token v1 <secret>
abra app secret rm $DOMAIN signal_hs_token
abra app secret insert $DOMAIN signal_hs_token v1 <secret>

abra app deploy $DOMAIN

message @signalbot:example.com to test
See the docs for authentication