diff --git a/Mattermost b/Mattermost
new file mode 100644
index 0000000..489e2b7
--- /dev/null
+++ b/Mattermost
@@ -0,0 +1,73 @@
+services:
+  postgres:
+    image: postgres:17
+    container_name: mattermost-db
+    restart: unless-stopped
+
+    environment:
+      POSTGRES_DB: mattermost
+      POSTGRES_USER: mattermost
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      TZ: Europe/Berlin
+
+    volumes:
+      - mattermost-db:/var/lib/postgresql/data
+
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U mattermost -d mattermost"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+
+    networks:
+      - proxy
+
+  mattermost:
+    image: mattermost/mattermost-team-edition:latest
+    container_name: mattermost
+    restart: unless-stopped
+
+    depends_on:
+      postgres:
+        condition: service_healthy
+
+    environment:
+      TZ: Europe/Berlin
+
+      MM_SQLSETTINGS_DRIVERNAME: postgres
+      MM_SQLSETTINGS_DATASOURCE: postgres://mattermost:${POSTGRES_PASSWORD}@postgres:5432/mattermost?sslmode=disable&connect_timeout=10
+
+      MM_SERVICESETTINGS_SITEURL: https://chat.deinedomain.de
+
+    volumes:
+      - mattermost-config:/mattermost/config
+      - mattermost-data:/mattermost/data
+      - mattermost-logs:/mattermost/logs
+      - mattermost-plugins:/mattermost/plugins
+      - mattermost-clientplugins:/mattermost/client/plugins
+      - mattermost-bleve:/mattermost/bleve-indexes
+
+    ports:
+      - "8065:8065"
+
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8065/api/v4/system/ping"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+
+    networks:
+      - proxy
+
+networks:
+  proxy:
+    external: true
+
+volumes:
+  mattermost-db:
+  mattermost-config:
+  mattermost-data:
+  mattermost-logs:
+  mattermost-plugins:
+  mattermost-clientplugins:
+  mattermost-bleve:
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