feat: discord bridging

See https://git.coopcloud.tech/coop-cloud/matrix-synapse/issues/31

compose.discord.yml

@@ -0,0 +1,66 @@
+---
+version: "3.8"
+
+services:
+  app:
+    environment:
+      - APP_SERVICES_ENABLED
+      - APP_SERVICE_CONFIGS
+    volumes:
+      - discord-data:/discord-data
+
+  discordbridge:
+    image: halfshot/matrix-appservice-discord:v1.0.0
+    depends_on:
+      - discorddb
+    configs:
+      - source: discord_bridge_yaml
+        target: /data/config.yaml
+    environment:
+      - DISCORD_CLIENT_ID
+      - DISCORD_BRIDGE_ADMIN
+      - HOMESERVER_DOMAIN
+      - HOMESERVER_URL
+    secrets:
+      - discord_bot_token
+      - discord_db_password
+    volumes:
+      - discord-data:/data
+    networks:
+      - internal
+
+  discorddb:
+    image: postgres:13-alpine
+    secrets:
+      - discord_db_password
+    environment:
+      - LC_COLLATE=C
+      - LC_CTYPE=C
+      - POSTGRES_DB=discordbridge
+      - POSTGRES_INITDB_ARGS="-E \"UTF8\""
+      - POSTGRES_PASSWORD_FILE=/run/secrets/discord_db_password
+      - POSTGRES_USER=discordbridge
+    networks:
+      - internal
+    healthcheck:
+      test: ["CMD", "pg_isready", "-U", "synapse"]
+    volumes:
+      - discord-postgres:/var/lib/postgresql/data
+
+configs:
+  discord_bridge_yaml:
+    name: ${STACK_NAME}_discord_bridge_yaml_${DISCORD_BRIDGE_YAML_VERSION}
+    file: discord_bridge.yaml.tmpl
+    template_driver: golang
+
+volumes:
+  discord-data:
+  discord-postgres:
+
+secrets:
+  discord_db_password:
+    external: true
+    name: ${STACK_NAME}_discord_db_password_${SECRET_DISCORD_DB_PASSWORD_VERSION}
+  discord_bot_token:
+    external: true
+    name: ${STACK_NAME}_discord_bot_token_${SECRET_DISCORD_BOT_TOKEN_VERSION}