feat: add easy-dataset and mongodb-replicaset-single

src/mongodb-replicaset/README.md

@@ -20,24 +20,16 @@ This service sets up a MongoDB replica set with three members.
    docker compose up -d
    ```
 
-2. Connect to the primary node:
+   The services will automatically initialize the replica set through the `mongo-init` init container. This container:
+   - Waits for all MongoDB nodes to be healthy
+   - Connects to the primary node
+   - Initializes the replica set with internal container names
+   - Uses container-based networking for communication
+
+2. Verify the replica set status:
 
    ```bash
-   docker exec -it mongodb-replicaset-mongo1-1 mongosh
-   ```
-
-3. Initialize the replica set. **Remember to replace the host IP with your actual host IP.**
-
-   ```js
-   config = {
-     _id: "rs0",
-     members: [
-       {_id: 0, host: "192.168.31.38:27017"},
-       {_id: 1, host: "192.168.31.38:27018"},
-       {_id: 2, host: "192.168.31.38:27019"},
-     ]
-   }
-   rs.initiate(config)
+   docker exec -it mongodb-replicaset-mongo1-1 mongosh -u root -p password --authenticationDatabase admin --eval "rs.status()"
    ```
 
 ## Services

src/mongodb-replicaset/README.zh.md

@@ -20,24 +20,16 @@
    docker compose up -d
    ```
 
-2. 连接到主节点：
+   这些服务将通过 `mongo-init` init 容器自动初始化副本集。该容器会：
+   - 等待所有 MongoDB 节点就绪
+   - 连接到主节点
+   - 使用容器名初始化副本集
+   - 通过容器网络进行通信
+
+2. 验证副本集状态：
 
    ```bash
-   docker exec -it mongodb-replicaset-mongo1-1 mongosh
-   ```
-
-3. 初始化副本集。**请记得将 host IP 替换为你的实际主机 IP。**
-
-   ```js
-   config = {
-     _id: "rs0",
-     members: [
-       {_id: 0, host: "192.168.31.38:27017"},
-       {_id: 1, host: "192.168.31.38:27018"},
-       {_id: 2, host: "192.168.31.38:27019"},
-     ]
-   }
-   rs.initiate(config)
+   docker exec -it mongodb-replicaset-mongo1-1 mongosh -u root -p password --authenticationDatabase admin --eval "rs.status()"
    ```
 
 ## 服务

src/mongodb-replicaset/docker-compose.yaml

@@ -24,6 +24,12 @@ x-mongo: &mongo
       chown 999:999 /tmp/rs0.key
       export MONGO_INITDB_ROOT_USERNAME MONGO_INITDB_ROOT_PASSWORD MONGO_INITDB_DATABASE
       exec docker-entrypoint.sh mongod --replSet ${MONGO_REPLICA_SET_NAME:-rs0} --keyFile /tmp/rs0.key
+  healthcheck:
+    test: mongosh --eval "db.adminCommand('ping')"
+    interval: 5s
+    timeout: 3s
+    retries: 10
+    start_period: 30s
   deploy:
     resources:
       limits:
@@ -38,11 +44,75 @@ services:
     <<: *mongo
     ports:
       - "${MONGO_PORT_OVERRIDE_1:-27017}:27017"
+
   mongo2:
     <<: *mongo
     ports:
       - "${MONGO_PORT_OVERRIDE_2:-27018}:27017"
+
   mongo3:
     <<: *mongo
     ports:
       - "${MONGO_PORT_OVERRIDE_3:-27019}:27017"
+
+  mongo-init:
+    <<: *default
+    image: mongo:${MONGO_VERSION:-8.0.13}
+    depends_on:
+      mongo1:
+        condition: service_healthy
+      mongo2:
+        condition: service_healthy
+      mongo3:
+        condition: service_healthy
+    environment:
+      TZ: ${TZ:-UTC}
+      MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME:-root}
+      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD:-password}
+      MONGO_REPLICA_SET_NAME: ${MONGO_REPLICA_SET_NAME:-rs0}
+      MONGO_PORT_1: ${MONGO_PORT_OVERRIDE_1:-27017}
+      MONGO_PORT_2: ${MONGO_PORT_OVERRIDE_2:-27018}
+      MONGO_PORT_3: ${MONGO_PORT_OVERRIDE_3:-27019}
+      MONGO_HOST: ${MONGO_HOST:-mongo1}
+    volumes:
+      - ./secrets/rs0.key:/data/rs0.key:ro
+    entrypoint:
+      - bash
+      - -c
+      - |
+        set -e
+        echo "Waiting for MongoDB nodes to be ready..."
+        sleep 5
+
+        mongosh \
+          --host "mongodb://$${MONGO_INITDB_ROOT_USERNAME}:$${MONGO_INITDB_ROOT_PASSWORD}@$${MONGO_HOST}:$${MONGO_PORT_1}" \
+          --authenticationDatabase admin \
+          --eval "
+            const config = {
+              _id: '$${MONGO_REPLICA_SET_NAME}',
+              members: [
+                { _id: 0, host: 'mongo1:27017' },
+                { _id: 1, host: 'mongo2:27017' },
+                { _id: 2, host: 'mongo3:27017' }
+              ]
+            };
+
+            try {
+              const result = rs.status();
+              print('Replica set already initialized');
+            } catch (e) {
+              print('Initializing replica set...');
+              rs.initiate(config);
+              print('Replica set initialized successfully');
+            }
+          "
+
+        echo "Init container completed successfully"
+    deploy:
+      resources:
+        limits:
+          cpus: '0.25'
+          memory: 256M
+        reservations:
+          cpus: '0.10'
+          memory: 128M