Add Mautrix Slack bridge

Signed-off-by: magic_rb <magic_rb@redalder.org>

flake.nix

@@ -67,6 +67,7 @@
         nixng/containers/ingress-toothpick
         nixng/containers/matrix/mautrix-signal
         nixng/containers/matrix/mautrix-discord
+        nixng/containers/matrix/mautrix-slack
         nixng/containers/matrix/mautrix-facebook
         nixng/containers/matrix/heisenbridge
         nixng/containers/matrix/synapse
@@ -90,6 +91,7 @@
         overlays/emacs-master-nativecomp
         overlays/zfs-relmount
         overlays/mautrix-discord.nix
+        overlays/mautrix-slack.nix
         overlays/getmail6
         overlays/maildrop
         overlays/courier-unicode.nix

nixng/containers/matrix/mautrix-slack/default.nix

@@ -0,0 +1,43 @@
+{ inputs, config, ... }:
+{
+  flake.nixngConfigurations.mautrixSlack = inputs.nixng.nglib.makeSystem {
+    system = "x86_64-linux";
+    name = "mautrix-slack";
+    inherit (inputs) nixpkgs;
+    config =
+      { pkgs, lib, ... }:
+      {
+        dumb-init = {
+          enable = true;
+          type.services = { };
+        };
+
+        init.services.mautrix-slack = {
+          enabled = true;
+          shutdownOnExit = true;
+          script =
+            let
+              inherit (lib)
+                getExe'
+                makeBinPath;
+              mautrix-slack = (pkgs.appendOverlays [ config.flake.overlays.mautrix-slack ]).mautrix-slack;
+            in
+              pkgs.writeShellScript "mautrix-slack"
+                ''
+                  DATA_DIR="/var/lib/mautrix-slack"
+                  CONFIG_FILE="$DATA_DIR/config.yaml"
+                  REGISTRATION_FILE="/var/lib/registrations/mautrix-slack.yaml"
+
+                  ${getExe' pkgs.envsubst "envsubst"} < ${./mautrix-slack.yaml} > "$CONFIG_FILE"
+                  chmod 755 "$CONFIG_FILE"
+
+                  export PATH="$PATH:${makeBinPath [ pkgs.lottieconverter ]};"
+
+                  [ -e "$REGISTRATION_FILE" ] || \
+                    ${getExe' mautrix-slack "mautrix-slack"} -c "$CONFIG_FILE" -r "$REGISTRATION_FILE" -g
+                  ${getExe' mautrix-slack "mautrix-slack"} -c "$CONFIG_FILE" -r "$REGISTRATION_FILE" -n
+                '';
+        };
+      };
+  };
+}

nixng/containers/matrix/mautrix-slack/mautrix-slack.yaml

@@ -0,0 +1,288 @@
+# Homeserver details.
+homeserver:
+    # The address that this appservice can use to connect to the homeserver.
+    address: https://matrix.redalder.org
+    # Publicly accessible base URL for media, used for avatars in relay mode.
+    # If not set, the connection address above will be used.
+    public_address: null
+    # The domain of the homeserver (also known as server_name, used for MXIDs, etc).
+    domain: matrix.redalder.org
+
+    # What software is the homeserver running?
+    # Standard Matrix homeservers like Synapse, Dendrite and Conduit should just use "standard" here.
+    software: standard
+    # The URL to push real-time bridge status to.
+    # If set, the bridge will make POST requests to this URL whenever a user's discord connection state changes.
+    # The bridge will use the appservice as_token to authorize requests.
+    status_endpoint: null
+    # Endpoint for reporting per-message status.
+    message_send_checkpoint_endpoint: null
+    # Does the homeserver support https://github.com/matrix-org/matrix-spec-proposals/pull/2246?
+    async_media: false
+
+# Application service host/registration related details.
+# Changing these values requires regeneration of the registration.
+appservice:
+    # The address that the homeserver can use to connect to this appservice.
+    address: http://localhost:29335
+
+    # The hostname and port where this appservice should listen.
+    hostname: 0.0.0.0
+    port: 29335
+
+    # Database config.
+    database:
+        # The database type. "sqlite3-fk-wal" and "postgres" are supported.
+        type: postgres
+        # The database URI.
+        #   SQLite: A raw file path is supported, but `file:<path>?_txlock=immediate` is recommended.
+        #           https://github.com/mattn/go-sqlite3#connection-string
+        #   Postgres: Connection string. For example, postgres://user:password@host/database?sslmode=disable
+        #             To connect via Unix socket, use something like postgres:///dbname?host=/var/run/postgresql
+        uri: postgres://mautrix-slack:${MAUTRIX_SLACK_APPSERVICE_DATABASE_PASSWORD}@127.0.0.1/mautrix-slack?sslmode=disable
+        # Maximum number of connections. Mostly relevant for Postgres.
+        max_open_conns: 10
+        max_idle_conns: 2
+        # Maximum connection idle time and lifetime before they're closed. Disabled if null.
+        # Parsed with https://pkg.go.dev/time#ParseDuration
+        max_conn_idle_time: null
+        max_conn_lifetime: null
+
+    # The unique ID of this appservice.
+    id: muslack
+    # Appservice bot details.
+    bot:
+        # Username of the appservice bot.
+        username: muslackbot
+        # Display name and avatar for bot. Set to "remove" to remove display name/avatar, leave empty
+        # to leave display name/avatar as-is.
+        displayname: Mautrix Slack bridge bot
+        avatar: mxc://maunium.net/pVtzLmChZejGxLqmXtQjFxem
+
+    # Whether or not to receive ephemeral events via appservice transactions.
+    # Requires MSC2409 support (i.e. Synapse 1.22+).
+    ephemeral_events: true
+
+    # Should incoming events be handled asynchronously?
+    # This may be necessary for large public instances with lots of messages going through.
+    # However, messages will not be guaranteed to be bridged in the same order they were sent in.
+    async_transactions: false
+
+    # Authentication tokens for AS <-> HS communication. Autogenerated; do not modify.
+    as_token: "${MAUTRIX_SLACK_APPSERVICE_AS_TOKEN}"
+    hs_token: "${MAUTRIX_SLACK_APPSERVICE_HS_TOKEN}"
+
+bridge:
+    # Localpart template of MXIDs for Slack users.
+    # {{.}} is replaced with the internal ID of the Slack user.
+    username_template: slack_{{.}}
+    # Displayname template for Slack users.
+    # TODO: document variables
+    displayname_template: '{{.RealName}} (S)'
+    bot_displayname_template: '{{.Name}} (bot)'
+    channel_name_template: '#{{.Name}}'
+
+    portal_message_buffer: 128
+
+    # Should the bridge send a read receipt from the bridge bot when a message has been sent to Slack?
+    delivery_receipts: true
+    # Whether the bridge should send the message status as a custom com.beeper.message_send_status event.
+    message_status_events: false
+    # Whether the bridge should send error notices via m.notice events when a message fails to bridge.
+    message_error_notices: true
+    # Should incoming custom emoji reactions be bridged as mxc:// URIs?
+    # If set to false, custom emoji reactions will be bridged as the shortcode instead, and the image won't be available.
+    custom_emoji_reactions: true
+
+    # Should the bridge sync with double puppeting to receive EDUs that aren't normally sent to appservices.
+    sync_with_custom_puppets: false
+    # Should the bridge update the m.direct account data event when double puppeting is enabled.
+    # Note that updating the m.direct event is not atomic (except with mautrix-asmux)
+    # and is therefore prone to race conditions.
+    sync_direct_chat_list: false
+    # Whether or not created rooms should have federation enabled.
+    # If false, created portal rooms will never be federated.
+    federate_rooms: true
+    # Whether to explicitly set the avatar and room name for private chat portal rooms.
+    # If set to `default`, this will be enabled in encrypted rooms and disabled in unencrypted rooms.
+    # If set to `always`, all DM rooms will have explicit names and avatars set.
+    # If set to `never`, DM rooms will never have names and avatars set.
+    private_chat_portal_meta: default
+
+    # Servers to always allow double puppeting from
+    double_puppet_server_map:
+        example.com: https://example.com
+    # Allow using double puppeting from any server with a valid client .well-known file.
+    double_puppet_allow_discovery: false
+    # Shared secrets for https://github.com/devture/matrix-synapse-shared-secret-auth
+    #
+    # If set, double puppeting will be enabled automatically for local users
+    # instead of users having to find an access token and run `login-matrix`
+    # manually.
+    login_shared_secret_map:
+        example.com: foobar
+
+    message_handling_timeout:
+        # Send an error message after this timeout, but keep waiting for the response until the deadline.
+        # This is counted from the origin_server_ts, so the warning time is consistent regardless of the source of delay.
+        # If the message is older than this when it reaches the bridge, the message won't be handled at all.
+        error_after: 10s
+        # Drop messages after this timeout. They may still go through if the message got sent to the servers.
+        # This is counted from the time the bridge starts handling the message.
+        deadline: 60s
+
+    # The prefix for commands. Only required in non-management rooms.
+    command_prefix: '!slack'
+    # Messages sent upon joining a management room.
+    # Markdown is supported. The defaults are listed below.
+    management_room_text:
+        # Sent when joining a room.
+        welcome: "Hello, I'm a Slack bridge bot."
+        # Sent when joining a management room and the user is already logged in.
+        welcome_connected: "Use `help` for help."
+        # Sent when joining a management room and the user is not logged in.
+        welcome_unconnected: "Use `help` for help, or `login-token` or `login-password` to log in."
+        # Optional extra text sent when joining a management room.
+        additional_help: ""
+
+    backfill:
+        # Allow backfilling at all? Requires MSC2716 support on homeserver.
+        enable: true
+
+        # Maximum number of conversations to fetch from Slack when syncing team from Slack.
+        # Must be 0-999
+        conversations_count: 200
+
+        # If a backfilled chat is older than this number of hours, mark it as read even if it's unread on Slack.
+        # Set to -1 to let any chat be unread.
+        unread_hours_threshold: 720
+
+        # Number of messages to immediately backfill when creating a portal.
+        immediate_messages: 10
+
+        # Settings for incremental backfill of history.
+        incremental:
+            # Maximum number of messages to backfill per batch.
+            messages_per_batch: 100
+            # The number of seconds to wait after backfilling the batch of messages.
+            post_batch_delay: 20
+            # The maximum number of messages to backfill per portal, split by the chat type.
+            # If set to -1, all messages in the chat will eventually be backfilled.
+            max_messages:
+                # Channels
+                channel: -1
+                # Group direct messages
+                group_dm: -1
+                # 1:1 direct messages
+                dm: -1
+
+    # End-to-bridge encryption support options.
+    #
+    # See https://docs.mau.fi/bridges/general/end-to-bridge-encryption.html for more info.
+    encryption:
+        # Allow encryption, work in group chat rooms with e2ee enabled
+        allow: false
+        # Default to encryption, force-enable encryption in all portals the bridge creates
+        # This will cause the bridge bot to be in private chats for the encryption to work properly.
+        default: false
+        # Whether to use MSC2409/MSC3202 instead of /sync long polling for receiving encryption-related data.
+        appservice: false
+        # Require encryption, drop any unencrypted messages.
+        require: false
+        # Enable key sharing? If enabled, key requests for rooms where users are in will be fulfilled.
+        # You must use a client that supports requesting keys from other users to use this feature.
+        allow_key_sharing: false
+        # Options for deleting megolm sessions from the bridge.
+        delete_keys:
+            # Beeper-specific: delete outbound sessions when hungryserv confirms
+            # that the user has uploaded the key to key backup.
+            delete_outbound_on_ack: false
+            # Don't store outbound sessions in the inbound table.
+            dont_store_outbound: false
+            # Ratchet megolm sessions forward after decrypting messages.
+            ratchet_on_decrypt: false
+            # Delete fully used keys (index >= max_messages) after decrypting messages.
+            delete_fully_used_on_decrypt: false
+            # Delete previous megolm sessions from same device when receiving a new one.
+            delete_prev_on_new_session: false
+            # Delete megolm sessions received from a device when the device is deleted.
+            delete_on_device_delete: false
+            # Periodically delete megolm sessions when 2x max_age has passed since receiving the session.
+            periodically_delete_expired: false
+            # Delete inbound megolm sessions that don't have the received_at field used for
+            # automatic ratcheting and expired session deletion. This is meant as a migration
+            # to delete old keys prior to the bridge update.
+            delete_outdated_inbound: false
+        # What level of device verification should be required from users?
+        #
+        # Valid levels:
+        #   unverified - Send keys to all device in the room.
+        #   cross-signed-untrusted - Require valid cross-signing, but trust all cross-signing keys.
+        #   cross-signed-tofu - Require valid cross-signing, trust cross-signing keys on first use (and reject changes).
+        #   cross-signed-verified - Require valid cross-signing, plus a valid user signature from the bridge bot.
+        #                           Note that creating user signatures from the bridge bot is not currently possible.
+        #   verified - Require manual per-device verification
+        #              (currently only possible by modifying the `trust` column in the `crypto_device` database table).
+        verification_levels:
+            # Minimum level for which the bridge should send keys to when bridging messages from WhatsApp to Matrix.
+            receive: unverified
+            # Minimum level that the bridge should accept for incoming Matrix messages.
+            send: unverified
+            # Minimum level that the bridge should require for accepting key requests.
+            share: cross-signed-tofu
+        # Options for Megolm room key rotation. These options allow you to
+        # configure the m.room.encryption event content. See:
+        # https://spec.matrix.org/v1.3/client-server-api/#mroomencryption for
+        # more information about that event.
+        rotation:
+            # Enable custom Megolm room key rotation settings. Note that these
+            # settings will only apply to rooms created after this option is
+            # set.
+            enable_custom: false
+            # The maximum number of milliseconds a session should be used
+            # before changing it. The Matrix spec recommends 604800000 (a week)
+            # as the default.
+            milliseconds: 604800000
+            # The maximum number of messages that should be sent with a given a
+            # session before changing it. The Matrix spec recommends 100 as the
+            # default.
+            messages: 100
+
+            # Disable rotating keys when a user's devices change?
+            # You should not enable this option unless you understand all the implications.
+            disable_device_change_key_rotation: false
+
+    # Settings for provisioning API
+    provisioning:
+        # Prefix for the provisioning API paths.
+        prefix: /_matrix/provision
+        # Shared secret for authentication. If set to "generate", a random secret will be generated,
+        # or if set to "disable", the provisioning API will be disabled.
+        shared_secret: generate
+
+    # Permissions for using the bridge.
+    # Permitted values:
+    #    relay - Talk through the relaybot (if enabled), no access otherwise
+    #     user - Access to use the bridge to chat with a Discord account.
+    #    admin - User level and some additional administration tools
+    # Permitted keys:
+    #        * - All Matrix users
+    #   domain - All users on that homeserver
+    #     mxid - Specific user
+    permissions:
+        "*": relay
+        "matrix.redalder.org": user
+        "@magic_rb:matrix.redalder.org": admin
+
+# Logging config. See https://github.com/tulir/zeroconfig for details.
+logging:
+    min_level: debug
+    writers:
+    - type: stdout
+      format: pretty-colored
+    - type: file
+      format: json
+      filename: ./logs/mautrix-discord.log
+      max_size: 100
+      max_backups: 10
+      compress: true

nixng/containers/matrix/synapse/postgresql.nix

@@ -47,6 +47,7 @@ makeSystem {
             "mautrix-signal" = { ENCODING = "UTF8"; TEMPLATE = "template0"; };
             "mautrix-whatsapp" = { ENCODING = "UTF8"; TEMPLATE = "template0"; };
             "mautrix-discord" = { ENCODING = "UTF8"; TEMPLATE = "template0"; };
+            "mautrix-slack" = { ENCODING = "UTF8"; TEMPLATE = "template0"; };
           };
           ensureExtensions = {};
           ensureUsers = [
@@ -70,6 +71,10 @@ makeSystem {
               name = "mautrix-discord";
               ensurePermissions."DATABASE \"mautrix-discord\"" = "ALL PRIVILEGES";
             }
+            {
+              name = "mautrix-slack";
+              ensurePermissions."DATABASE \"mautrix-slack\"" = "ALL PRIVILEGES";
+            }
           ];
         };
       };

overlays/mautrix-slack.nix

@@ -0,0 +1,39 @@
+# SPDX-FileCopyrightText: 2022 Richard Brežák <richard@brezak.sk>
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+{ inputs, ... }:
+{
+  flake.overlays.mautrix-slack =
+    final: prev:
+    let
+      inherit (prev.lib)
+        singleton;
+    in
+    {
+      mautrix-slack =
+        prev.buildGoModule rec {
+          pname = "mautrix-slack";
+          version = "0.6.3";
+
+          src = prev.fetchFromGitHub {
+            owner = "mautrix";
+            repo = "slack";
+            rev = "4530ff397d08d93b673cd71da4c2a75d969ca0df";
+            hash = "sha256-zq5Qzdw6MhBJDMmi2SWHTEyOghpfLiQOEf0e2Fn+ww8=";
+          };
+
+          buildInputs = singleton prev.olm;
+
+          vendorSha256 = "sha256-Adfz6mHYa22OqEZZHrvst31XdZFo7LuxQI20whq3Zes=";
+
+          doCheck = false;
+
+          meta = with prev.lib; {
+            homepage = "https://github.com/tulir/mautrix-slack";
+            description = "Matrix <-> Slack hybrid puppeting/relaybot bridge";
+            license = licenses.agpl3Plus;
+            maintainers = with maintainers; [ ];
+          };
+        };
+    };
+}

terranix/containers/matrix/default.nix

@@ -37,6 +37,14 @@ in
     mount_flags = [ "hard" "vers=4.2" "rsize=16384" "wsize=16384" "async" ];
   };
 
+  resource."nomad_volume"."matrix-mautrix-slack" = nfsVolume {
+    volume_name = "matrix-mautrix-slack";
+    access_mode = "single-node-writer";
+    server = "blowhole.hosts.in.redalder.org";
+    share = "/mnt/kyle/infrastructure/matrix/mautrix-slack";
+    mount_flags = [ "hard" "vers=4.2" "rsize=16384" "wsize=16384" "async" ];
+  };
+
   resource."nomad_volume"."matrix-mautrix-facebook" = nfsVolume {
     volume_name = "matrix-mautrix-facebook";
     access_mode = "single-node-writer";
@@ -93,6 +101,18 @@ in
     '';
   };
 
+  resource."vault_policy"."matrix-mautrix-slack-policy" = {
+    name = "matrix-mautrix-slack-policy";
+    policy = ''
+      path "kv/data/cluster/matrix/mautrix-slack/main" {
+        capabilities = ["read"]
+      }
+      path "kv/data/cluster/matrix/mautrix-slack/postgresql" {
+        capabilities = ["read"]
+      }
+    '';
+  };
+
   resource."vault_policy"."matrix-mautrix-facebook-policy" = {
     name = "matrix-mautrix-facebook-policy";
     policy = ''
@@ -132,6 +152,10 @@ in
       path "kv/data/cluster/matrix/mautrix-discord/postgresql" {
         capabilities = ["read"]
       }
+
+      path "kv/data/cluster/matrix/mautrix-slack/postgresql" {
+        capabilities = ["read"]
+      }
     '';
   };
 
@@ -161,6 +185,15 @@ in
     };
   };
 
+  resource."nomad_job"."matrix-mautrix-slack" = nomadJob {
+    jobspec = ./matrix-mautrix-slack.hcl;
+    vars = {
+      flake_ref = "${vars.flake_host}?ref=${vars.flake_ref}&rev=${vars.flake_rev}";
+      flake_sha = vars.flake_sha;
+      store_path = builtins.unsafeDiscardStringContext config'.flake.nixngConfigurations.mautrixSlack.config.system.build.toplevel;
+    };
+  };
+
   resource."nomad_job"."matrix-mautrix-facebook" = nomadJob {
     jobspec = ./matrix-mautrix-facebook.hcl;
     vars = {

terranix/containers/matrix/matrix-mautrix-slack.hcl

@@ -0,0 +1,118 @@
+variable "flake_ref" {
+  type = string
+}
+
+variable "flake_sha" {
+  type = string
+}
+
+variable "store_path" {
+  type = string
+}
+
+job "matrix-mautrix-slack" {
+  datacenters = [ "homelab-1" ]
+  type = "service"
+
+  group "mautrix-slack" {
+    count = 1
+
+    volume "matrix-mautrix-slack" {
+      type = "csi"
+      source = "matrix-mautrix-slack"
+      read_only = false
+
+      attachment_mode = "file-system"
+      access_mode     = "single-node-writer"
+    }
+
+    volume "matrix-registrations" {
+      type = "csi"
+      source = "matrix-registrations"
+      read_only = false
+
+      attachment_mode = "file-system"
+      access_mode     = "multi-node-multi-writer"
+    }
+
+    restart {
+      attempts = 5
+      delay = "5s"
+    }
+
+    network {
+      mode = "bridge"
+    }
+
+    service {
+      name = "matrix-mautrix-slack"
+      port = "29335"
+
+      # check {
+      #   type = "http"
+      #   address_mode = "alloc"
+      #   path = "/public"
+      #   port = "29319"
+      #   interval = "2s"
+      #   timeout = "2s"
+      # }
+
+      connect {
+        sidecar_service {
+          proxy {
+            upstreams {
+              destination_name = "matrix-postgresql"
+              local_bind_port  = 5432
+            }
+          }
+        }
+      }
+    }
+
+    task "mautrix-slack" {
+      driver = "docker"
+
+      volume_mount {
+        volume = "matrix-mautrix-slack"
+        destination = "/var/lib/mautrix-slack"
+        read_only = false
+      }
+
+      volume_mount {
+        volume = "matrix-registrations"
+        destination = "/var/lib/registrations"
+        read_only = false
+      }
+
+      config {
+        nix_flake_ref = "${var.flake_ref}#nixngConfigurations.mautrixSlack.config.system.build.toplevel"
+        nix_flake_sha = var.flake_sha
+        nix_flake_store_path = var.store_path
+        entrypoint = [ "init" ]
+      }
+
+      vault {
+        policies = ["matrix-mautrix-slack-policy"]
+      }
+
+      template {
+        data = <<EOF
+{{ with secret "kv/data/cluster/matrix/mautrix-slack/main" }}
+MAUTRIX_SLACK_APPSERVICE_AS_TOKEN={{ .Data.data.as_token }}
+MAUTRIX_SLACK_APPSERVICE_HS_TOKEN={{ .Data.data.hs_token }}
+{{ end }}
+{{ with secret "kv/data/cluster/matrix/mautrix-slack/postgresql" }}
+MAUTRIX_SLACK_APPSERVICE_DATABASE_PASSWORD={{ .Data.data.pgpass }}
+{{ end }}
+EOF
+        destination = "secrets/environment"
+        env = true
+      }
+
+      resources {
+        cpu = 256
+        memory = 256
+      }
+    }
+  }
+}

terranix/containers/matrix/matrix-synapse.hcl

@@ -157,6 +157,11 @@ EOF
               local_bind_port  = 29334
             }
 
+            upstreams {
+              destination_name = "matrix-mautrix-slack"
+              local_bind_port  = 29335
+            }
+
             upstreams {
               destination_name = "matrix-heisenbridge"
               local_bind_port  = 9898
@@ -314,6 +319,11 @@ EOF
               local_bind_port  = 29334
             }
 
+            upstreams {
+              destination_name = "matrix-mautrix-slack"
+              local_bind_port  = 29335
+            }
+
             upstreams {
               destination_name = "matrix-heisenbridge"
               local_bind_port  = 9898
@@ -471,6 +481,11 @@ EOF
               local_bind_port  = 29334
             }
 
+            upstreams {
+              destination_name = "matrix-mautrix-slack"
+              local_bind_port  = 29335
+            }
+
             upstreams {
               destination_name = "matrix-heisenbridge"
               local_bind_port  = 9898
@@ -628,6 +643,11 @@ EOF
               local_bind_port  = 29334
             }
 
+            upstreams {
+              destination_name = "matrix-mautrix-slack"
+              local_bind_port  = 29335
+            }
+
             upstreams {
               destination_name = "matrix-heisenbridge"
               local_bind_port  = 9898
@@ -782,6 +802,7 @@ alter user "synapse" with password '{{ with secret "kv/data/cluster/matrix/synap
 alter user "mautrix-facebook" with password '{{ with secret "kv/data/cluster/matrix/mautrix-facebook/postgresql" }}{{ .Data.data.pgpass }}{{ end }}';
 alter user "mautrix-signal" with password '{{ with secret "kv/data/cluster/matrix/mautrix-signal/postgresql" }}{{ .Data.data.pgpass }}{{ end }}';
 alter user "mautrix-discord" with password '{{ with secret "kv/data/cluster/matrix/mautrix-discord/postgresql" }}{{ .Data.data.pgpass }}{{ end }}';
+alter user "mautrix-slack" with password '{{ with secret "kv/data/cluster/matrix/mautrix-slack/postgresql" }}{{ .Data.data.pgpass }}{{ end }}';
 EOF
         destination = "secrets/init.sql"
         change_mode   = "noop"
@@ -854,6 +875,11 @@ EOF
               local_bind_port  = 29334
             }
 
+            upstreams {
+              destination_name = "matrix-mautrix-slack"
+              local_bind_port  = 29335
+            }
+
             upstreams {
               destination_name = "matrix-heisenbridge"
               local_bind_port  = 9898