Add synapse

synapse/README.md

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+# synapse
+
+A Matrix homeserver implementation developed by the matrix.org core team.
+
+## Important step when deploying
+This stacks the data to in a folder under /media/matrix/matrix_data.
+The database is stored in a named volume.

synapse/docker-compose.yaml

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+version: '3.3'
+
+services:
+  app:
+    image: matrixdotorg/synapse:${synapse_version:-latest}
+    restart: unless-stopped
+    volumes:
+      - /media/matrix/matrix_data:/data
+    networks:
+      - server
+
+  postgresql:
+    image: postgres:${postgres_version:-13}
+    restart: unless-stopped
+    environment:
+      - POSTGRES_PASSWORD=synapse
+      - POSTGRES_USER=synapse
+      - POSTGRES_DB=synapse
+      - POSTGRES_INITDB_ARGS=--encoding='UTF8' --lc-collate='C' --lc-ctype='C'
+      - VIRTUAL_HOST=matrix.jfreudenberger.de # the domain where the service should be reached
+      - VIRTUAL_PORT=80 # the port the service listens in the container
+      - LETSENCRYPT_HOST=matrix.jfreudenberger.de # the same domain as VIRTUAL_HOST; this enables ssl
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    networks:
+      - server
+
+volumes:
+  postgres_data:
+
+networks:
+   server:
+     external: false