Custom open-webui Docker image; configuring MCP server directly inside open-webui DB; adding open-webui volume

Author: pavel-miniutka

.github/workflows/docker.yml

@@ -0,0 +1,38 @@
+name: Build & Push Proxy
+
+on:
+  push:
+    branches: [ "main" ]
+  release:
+    types: [published]
+  workflow_dispatch: 
+
+permissions:
+  contents: read
+  packages: write
+
+env:
+  IMAGE_NAME: ghcr.io/lsfusion/open-webui
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ./open-webui
+          push: true
+          tags: |
+            ${{ env.IMAGE_NAME }}:latest
+            ${{ env.IMAGE_NAME }}:${{ github.sha }}

docker-compose.yml

@@ -39,29 +39,33 @@ services:
       - mcp
     restart: unless-stopped
 
-  mcp-bridge:
-    image: ghcr.io/secretiveshell/mcp-bridge/mcp-bridge:0.5.1
-    volumes:
-      - ./mcp-bridge/config.json:/mcp_bridge/config.json:ro
-    environment:
-      MCP_BRIDGE__CONFIG__FILE: /mcp_bridge/config.json
-    depends_on:
-      - proxy-mcp
-      - mcp
-    expose:
-      - "9090"
-    restart: unless-stopped
+#  mcp-bridge:
+#    image: ghcr.io/secretiveshell/mcp-bridge/mcp-bridge:0.5.1
+#    volumes:
+#      - ./mcp-bridge/config.json:/mcp_bridge/config.json:ro
+#    environment:
+#      MCP_BRIDGE__CONFIG__FILE: /mcp_bridge/config.json
+#    depends_on:
+#      - proxy-mcp
+#      - mcp
+#    expose:
+#      - "9090"
+#    restart: unless-stopped
 
   openwebui:
-    image: ghcr.io/open-webui/open-webui:latest
-
+    image: ghcr.io/lsfusion/open-webui:latest
+    volumes:
+      - ./open-webui:/app/backend/data
     environment:
       - OPENAI_API_BASE_URL=https://${DOMAIN}/${OPENAI_PATH}/mcp/v1
 #    image: lobehub/lobe-chat:latest
 #    environment:
 #      - OPENAI_PROXY_URL=https://${DOMAIN}/${OPENAI_PATH}/v1
 #      - OPENAI_API_BASE_URL=https://${DOMAIN}/${OPENAI_PATH}/v1
       - DEFAULT_MODEL=${MODEL_ID}
+      - MCP_URL=http://proxy-mcp:8000
+      - MCP_ID=lsf-mcp
+      - MCP_NAME=lsFusion MCP
     expose:
 #      - "3210"
        - "8080"

open-webui/Dockerfile

@@ -0,0 +1,6 @@
+FROM ghcr.io/open-webui/open-webui:latest
+
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

open-webui/entrypoint.sh

@@ -0,0 +1,119 @@
+#!/bin/bash
+set -e
+
+DB_FILE="/app/backend/data/webui.db"
+START_SCRIPT="/app/backend/start.sh"
+
+MCP_ID="${MCP_ID:-default_id}"
+MCP_NAME="${MCP_NAME:-Default MCP}"
+MCP_URL="${MCP_URL:-http://localhost}"
+MCP_PATH="${MCP_PATH:-openapi.json}"
+
+mkdir -p /app/backend/data
+
+echo "Initializing OpenWebUI configuration..."
+
+NEED_INIT=0
+if [ ! -f "$DB_FILE" ]; then
+    echo "Database file not found, will initialize schema."
+    NEED_INIT=1
+else
+    echo "Database file exists, checking schema..."
+    if ! sqlite3 "$DB_FILE" "SELECT name FROM sqlite_master WHERE type='table' AND name='config';" | grep -q "config"; then
+        echo "Config table missing — need initialization."
+        NEED_INIT=1
+    fi
+fi
+
+if [ "$NEED_INIT" -eq 1 ]; then
+    echo "Running OpenWebUI once to auto-create schema..."
+
+    bash "$START_SCRIPT" &
+    PID=$!
+
+    echo "Waiting for database creation..."
+    while [ ! -f "$DB_FILE" ]; do
+        sleep 1
+    done
+
+    # waiting for config table
+    until sqlite3 "$DB_FILE" "SELECT name FROM sqlite_master WHERE type='table' AND name='config';" | grep -q "config"; do
+        sleep 1
+    done
+
+    echo "Schema ready. Killing bootstrap instance..."
+    kill $PID || true
+    sleep 2
+else
+    echo "Database schema already initialized. Skipping bootstrap."
+fi
+
+echo "Updating config table..."
+
+python3 <<EOF
+import sqlite3, json
+
+db = "${DB_FILE}"
+
+conn = sqlite3.connect(db)
+cur = conn.cursor()
+
+cur.execute("SELECT id, data FROM config LIMIT 1;")
+row = cur.fetchone()
+
+if row is None:
+    base = {"version": 0, "ui": {}, "tool_server": {"connections": []}}
+    cur.execute("INSERT INTO config (id, data, version) VALUES (1, ?, 0)", (json.dumps(base),))
+    conn.commit()
+    cur.execute("SELECT id, data FROM config LIMIT 1;")
+    row = cur.fetchone()
+
+config_id, data_json = row
+data = json.loads(data_json)
+
+tool_server = data.setdefault("tool_server", {})
+connections = tool_server.setdefault("connections", [])
+
+mcp_id   = "${MCP_ID}"
+mcp_name = "${MCP_NAME}"
+mcp_url  = "${MCP_URL}"
+mcp_path = "${MCP_PATH}"
+
+found = next((c for c in connections if c.get("url") == mcp_url), None)
+
+new_item = {
+    "url": mcp_url,
+    "path": mcp_path,
+    "type": "mcp",
+    "auth_type": "none",
+    "key": "",
+    "config": {
+        "enable": True,
+        "access_control": {
+            "read": {"group_ids": [], "user_ids": []},
+            "write": {"group_ids": [], "user_ids": []}
+        }
+    },
+    "spec_type": "url",
+    "spec": "",
+    "info": {
+        "id": mcp_id,
+        "name": mcp_name,
+        "description": ""
+    }
+}
+
+if found:
+    found.update(new_item)
+else:
+    connections.append(new_item)
+
+cur.execute("UPDATE config SET data = ? WHERE id = ?;", (json.dumps(data), config_id))
+conn.commit()
+conn.close()
+EOF
+
+echo "Config update complete."
+
+echo "Starting OpenWebUI..."
+exec bash "$START_SCRIPT"