- [matrixdotorg/synapse](https://hub.docker.com/r/matrixdotorg/synapse/) - the official [Synapse](https://github.com/element-hq/synapse) Matrix homeserver (optional)
- [certbot/certbot](https://hub.docker.com/r/certbot/certbot/) - the [certbot](https://certbot.eff.org/) tool for obtaining SSL certificates from [Let's Encrypt](https://letsencrypt.org/) (optional)
## Optional other container images we may use
These services are not part of our default installation, but can be enabled by [configuring the playbook](configuring-playbook.md) (either before the initial installation or any time later):
- [ewoutp/goofys](https://hub.docker.com/r/ewoutp/goofys/) - the [Goofys](https://github.com/kahing/goofys) Amazon [S3](https://aws.amazon.com/s3/) file-system-mounting program (optional)
- [etherpad/etherpad](https://hub.docker.com/r/etherpad/etherpad/) - the [Etherpad](https://etherpad.org) realtime collaborative text editor that can be used in a Jitsi audio/video call or integrated as a widget into Matrix chat rooms via the Dimension integration manager (optional)
- [devture/email2matrix](https://hub.docker.com/r/devture/email2matrix/) - the [Email2Matrix](https://github.com/devture/email2matrix) email server, which can relay email messages to Matrix rooms (optional)
- [devture/matrix-corporal](https://hub.docker.com/r/devture/matrix-corporal/) - [Matrix Corporal](https://github.com/devture/matrix-corporal): reconciliator and gateway for a managed Matrix server (optional)
- [zeratax/matrix-registration](https://hub.docker.com/r/devture/zeratax-matrix-registration/) - [matrix-registration](https://github.com/ZerataX/matrix-registration): a simple python application to have a token based Matrix registration (optional)
- [mautrix/telegram](https://mau.dev/mautrix/telegram/container_registry) - the [mautrix-telegram](https://github.com/mautrix/telegram) bridge to [Telegram](https://telegram.org/) (optional)
- [mautrix/gmessages](https://mau.dev/mautrix/gmessages/container_registry) - the [mautrix-gmessages](https://github.com/mautrix/gmessages) bridge to [Google Messages](https://messages.google.com/) (optional)
- [mautrix/whatsapp](https://mau.dev/mautrix/whatsapp/container_registry) - the [mautrix-whatsapp](https://github.com/mautrix/whatsapp) bridge to [Whatsapp](https://www.whatsapp.com/) (optional)
- [mautrix/facebook](https://mau.dev/mautrix/facebook/container_registry) - the [mautrix-facebook](https://github.com/mautrix/facebook) bridge to [Facebook](https://facebook.com/) (optional)
- [mautrix/twitter](https://mau.dev/mautrix/twitter/container_registry) - the [mautrix-twitter](https://github.com/mautrix/twitter) bridge to [Twitter](https://twitter.com/) (optional)
- [mautrix/hangouts](https://mau.dev/mautrix/hangouts/container_registry) - the [mautrix-hangouts](https://github.com/mautrix/hangouts) bridge to [Google Hangouts](https://en.wikipedia.org/wiki/Google_Hangouts) (optional)
- [mautrix/googlechat](https://mau.dev/mautrix/googlechat/container_registry) - the [mautrix-googlechat](https://github.com/mautrix/googlechat) bridge to [Google Chat](https://en.wikipedia.org/wiki/Google_Chat) (optional)
- [mautrix/instagram](https://mau.dev/mautrix/instagram/container_registry) - the [mautrix-instagram](https://github.com/mautrix/instagram) bridge to [Instagram](https://instagram.com/) (optional)
- [mautrix/signal](https://mau.dev/mautrix/signal/container_registry) - the [mautrix-signal](https://github.com/mautrix/signal) bridge to [Signal](https://www.signal.org/) (optional)
- [matrixdotorg/matrix-appservice-irc](https://hub.docker.com/r/matrixdotorg/matrix-appservice-irc) - the [matrix-appservice-irc](https://github.com/matrix-org/matrix-appservice-irc) bridge to [IRC](https://wikipedia.org/wiki/Internet_Relay_Chat) (optional)
- [matrix-org/matrix-appservice-discord](https://ghcr.io/matrix-org/matrix-appservice-discord) - the [matrix-appservice-discord](https://github.com/matrix-org/matrix-appservice-discord) bridge to [Discord](https://discordapp.com/) (optional)
- [matrixdotorg/matrix-appservice-slack](https://hub.docker.com/r/matrixdotorg/matrix-appservice-slack) - the [matrix-appservice-slack](https://github.com/matrix-org/matrix-appservice-slack) bridge to [Slack](https://slack.com/) (optional)
- [mx-puppet/discord/mx-puppet-discord](https://gitlab.com/mx-puppet/discord/mx-puppet-discord/container_registry) - the [mx-puppet-discord](https://gitlab.com/mx-puppet/discord/mx-puppet-discord) bridge to [Discord](https://discordapp.com) (optional)
- [mx-puppet/slack/mx-puppet-slack](https://gitlab.com/mx-puppet/slack/mx-puppet-slack/container_registry) - the [mx-puppet-slack](https://gitlab.com/mx-puppet/slack/mx-puppet-slack) bridge to [Slack](https://slack.com) (optional)
- [sorunome/mx-puppet-instagram](https://hub.docker.com/r/sorunome/mx-puppet-instagram) - the [mx-puppet-instagram](https://github.com/Sorunome/mx-puppet-instagram) bridge to [Instagram](https://www.instagram.com) (optional)
- [sorunome/mx-puppet-twitter](https://hub.docker.com/r/sorunome/mx-puppet-twitter) - the [mx-puppet-twitter](https://github.com/Sorunome/mx-puppet-twitter) bridge to [Twitter](https://twitter.com) (optional)
- [xangelix/mx-puppet-groupme](https://hub.docker.com/r/xangelix/mx-puppet-groupme) - the [mx-puppet-groupme](https://gitlab.com/xangelix-pub/matrix/mx-puppet-groupme) bridge to [GroupMe](https://groupme.com/) (optional)
- [icewind1991/mx-puppet-steam](https://hub.docker.com/r/icewind1991/mx-puppet-steam) - the [mx-puppet-steam](https://github.com/icewind1991/mx-puppet-steam) bridge to [Steam](https://steampowered.com) (optional)
- [jitsi/web](https://hub.docker.com/r/jitsi/web) - the [Jitsi](https://jitsi.org/) web UI (optional)
- [jitsi/jicofo](https://hub.docker.com/r/jitsi/jicofo) - the [Jitsi](https://jitsi.org/) Focus component (optional)
- [jitsi/prosody](https://hub.docker.com/r/jitsi/prosody) - the [Jitsi](https://jitsi.org/) Prosody XMPP server component (optional)
- [jitsi/jvb](https://hub.docker.com/r/jitsi/jvb) - the [Jitsi](https://jitsi.org/) Video Bridge component (optional)
- [anoa/matrix-reminder-bot](https://hub.docker.com/r/anoa/matrix-reminder-bot) - the [matrix-reminder-bot](https://github.com/anoadragon453/matrix-reminder-bot) bot for one-off & recurring reminders and alarms (optional)
- [moanos/matrix-registration-bot/](https://hub.docker.com/r/moanos/matrix-registration-bot/) - the [matrix-registration-bot](https://github.com/moan0s/matrix-registration-bot) bot (manage registration tokens for invitations to the server) (optional)
- [awesometechnologies/synapse-admin](https://hub.docker.com/r/awesometechnologies/synapse-admin) - the [synapse-admin](https://github.com/Awesome-Technologies/synapse-admin) web UI tool for administrating users and rooms on your Matrix server (optional)
- [prom/prometheus](https://hub.docker.com/r/prom/prometheus/) - [Prometheus](https://github.com/prometheus/prometheus/) is a systems and service monitoring system
- [prom/node-exporter](https://hub.docker.com/r/prom/node-exporter/) - [Prometheus Node Exporter](https://github.com/prometheus/node_exporter/) is an addon for Prometheus that gathers standard system metrics
- [grafana/grafana](https://hub.docker.com/r/grafana/grafana/) - [Grafana](https://github.com/grafana/grafana/) is a graphing tool that works well with the above two images. Our playbook also adds two dashboards for [Synapse](https://github.com/element-hq/synapse/tree/master/contrib/grafana) and [Node Exporter](https://github.com/rfrail3/grafana-dashboards)
- [matrixdotorg/sygnal](https://hub.docker.com/r/matrixdotorg/sygnal/) - [Sygnal](https://github.com/matrix-org/sygnal) is a reference Push Gateway for Matrix
- [binwiederhier/ntfy](https://hub.docker.com/r/binwiederhier/ntfy/) - [ntfy](https://ntfy.sh/) is a self-hosted, UnifiedPush-compatible push notifications server
- [cactuscomments/cactus-appservice](https://hub.docker.com/r/cactuscomments/cactus-appservice/) - [Cactus Comments](https://cactus.chat) a federated comment system built on Matrix