docker swarm 部署minio集群并配合nginx实现负载均衡

Minio

本示例compose文件会拉起3个节点的minio集群，节点用swarm node标签replica来标记。

docker-compose文件准备

docker-compose-minio-limit.yml （限制使用的内存和CPU）

version: '3.7'

# Settings and configurations that are common for all containers
x-minio-common: &minio-common
  image: quay.io/minio/minio:RELEASE.2023-06-19T19-52-50Z
  command: server --console-address ":9001" http://minio{1...3}/data{1...2}
  environment:
    MINIO_ROOT_USER: minioadmin
    MINIO_ROOT_PASSWORD: minioadmin
  networks:
    - minio_distributed
  healthcheck:
    test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
    interval: 30s
    timeout: 20s
    retries: 3

# starts 3 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:
  minio1:
    <<: *minio-common
    hostname: minio1
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
      resources:
        limits:
          memory: 800M
          cpus: "0.5"
      placement:
        constraints:
          - node.labels.minio.replica==1
    volumes:
      - minio1-data-1:/data1
      - minio1-data-2:/data2

  minio2:
    <<: *minio-common
    hostname: minio2
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
      resources:
        limits:
          memory: 800M
          cpus: "0.5"
      placement:
        constraints:
          - node.labels.minio.replica==2
    volumes:
      - minio2-data-1:/data1
      - minio2-data-2:/data2

  minio3:
    <<: *minio-common
    hostname: minio3
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
      resources:
        limits:
          memory: 800M
          cpus: "0.5"
      placement:
        constraints:
          - node.labels.minio.replica==3
    volumes:
      - minio3-data-1:/data1
      - minio3-data-2:/data2

  nginx:
    image: nginx:1.20-alpine
    hostname: nginx
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    networks:
      - minio_distributed
    ports:
      - "9000:9000"
      - "9001:9001"
    deploy:
      resources:
        limits:
          memory: 800M
          cpus: "0.5"
      placement:
        constraints:
          - node.labels.minio.replica==1
    depends_on:
      - minio1
      - minio2
      - minio3

## By default this config uses default local driver,
## For custom volumes replace with volume driver configuration.
volumes:
  minio1-data-1:
  minio1-data-2:
  minio2-data-1:
  minio2-data-2:
  minio3-data-1:
  minio3-data-2:

networks:
  minio_distributed:
    external: true # 用已经创建好的网络

nginx.conf

user  nginx;
worker_processes  auto;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
    worker_connections  4096;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;
    sendfile        on;
    keepalive_timeout  65;

    # include /etc/nginx/conf.d/*.conf;

    upstream minio {
        server minio1:9000;
        server minio2:9000;
        server minio3:9000;
    }

    upstream console {
        ip_hash;
        server minio1:9001;
        server minio2:9001;
        server minio3:9001;
    }

    server {
        listen       9000;
        listen  [::]:9000;
        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;

            proxy_connect_timeout 300;
            # Default is HTTP/1, keepalive is only enabled in HTTP/1.1
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            chunked_transfer_encoding off;

            proxy_pass http://minio;
        }
    }

    server {
        listen       9001;
        listen  [::]:9001;
        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-NginX-Proxy true;

            # This is necessary to pass the correct IP to be hashed
            real_ip_header X-Real-IP;

            proxy_connect_timeout 300;

            # To support websocket
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";

            chunked_transfer_encoding off;

            proxy_pass http://console;
        }
    }
}

准备工作

修改docker-compose-minio.yml里的配置信息

swarm节点标记replica
用户名密码，MINIO_ROOT_USER和MINIO_ROOT_PASSWORD
修改卷挂载，改到数据盘

创建专用网络：

docker network create --driver overlay minio_distributed

拉起服务

sudo docker stack deploy -c docker-compose-minio-new.yml minio
sudo docker stack ps minio查看服务状态

服务验证

登录控制台
访问 http://node1:9001输入上面的用户名和密码，登录成功界面。
登录其他节点控制台

问题排查

无法创建服务，没找到网卡，因为服务启动依赖网卡，重新再拉起一次，看到先创建网卡就好了：Creating network minio_minio_distributed。

Creating service minio_minio2
failed to create service minio_minio2: Error response from daemon: network minio_minio_distributed not found

参考官网

https://github.com/minio/minio/tree/master/docs/orchestration/docker-compose

posted on 2023-02-14 18:06 JentZhang 阅读(501) 评论(0) 编辑收藏举报