Added files

.env.example

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+# Postgres
+POSTGRES_DB=synapse
+POSTGRES_USER=synapse
+POSTGRES_PASSWORD=changeme
+
+# Synapse
+SYNAPSE_SERVER_NAME=chat.example.com
+
+# Element Admin
+REACT_APP_SERVER=https://chat.example.com
+REACT_APP_REGISTRATION_ENABLED=false

.gitignore

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+postgres-data/
+synapse-data/
+.env
+element-config.json

docker-compose.yml

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+version: '3.8'
+services:
+  postgres:
+    image: postgres:14
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB}
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_INITDB_ARGS: "--encoding=UTF8 --locale=C"
+    volumes:
+      - ./postgres-data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+  synapse:
+    image: matrixdotorg/synapse:latest
+    restart: unless-stopped
+    depends_on:
+      - postgres
+    environment:
+      SYNAPSE_SERVER_NAME: ${SYNAPSE_SERVER_NAME}
+      SYNAPSE_REPORT_STATS: 'yes'
+      SYNAPSE_NO_TLS: 'true'
+    volumes:
+      - ./synapse-data:/data
+    ports:
+      - "8008:8008"
+  element-web:
+    image: vectorim/element-web:latest
+    restart: unless-stopped
+    depends_on:
+      - synapse
+    volumes:
+      - ./element-config.json:/app/config.json
+    ports:
+      - "8080:80"
+  element-admin:
+    image: awesometechnologies/synapse-admin:latest
+    container_name: element-admin
+    ports:
+      - 8081:80
+    environment:
+      - REACT_APP_SERVER=${REACT_APP_SERVER}
+      - REACT_APP_REGISTRATION_ENABLED=${REACT_APP_REGISTRATION_ENABLED}
+    restart: unless-stopped

element-config.json.example

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+{
+  "default_server_config": {
+    "m.homeserver": {
+      "base_url": "https://chat.example.com",
+      "server_name": "chat.example.com"
+    }
+  },
+  "disable_custom_urls": true,
+  "brand": "My Matrix Server",
+  "showLabsSettings": true,
+  "voip": {
+    "stun_servers": [
+      { "urls": ["stun:turn.example.com:3478"] }
+    ],
+    "turn_servers": [
+      {
+        "urls": [
+          "turn:turn.example.com:3478?transport=udp",
+          "turn:turn.example.com:3478?transport=tcp",
+          "turns:turn.example.com:5349?transport=tcp"
+        ],
+        "secret": "changeme",
+        "expiry": 86400000
+      }
+    ]
+  },
+  "webrtc": {
+    "livekit_url": "wss://chat.example.com:7880",
+    "jwt_url": "https://chat.example.com:8100"
+  },
+  "labs": {
+    "feature_custom_calls": true
+  }
+}