对象存储服务-minio

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世界上并没有完美的程序,但是我们并不因此而沮丧,因为写程序就是一个不断追求完美的过程。

以下内容多数来自官网及github:docs.min.io/cn/

MinIO 是一个基于Apache License v2.0开源协议的对象存储服务。它兼容亚马逊S3云存储服务接口,非常适合于存储大容量非结构化的数据,例如图片、视频、日志文件、备份数据和容器/虚拟机镜像等,而一个对象文件可以是任意大小,从几kb到最大5T不等。

docker构建服务:单体

docker pull minio/minio
docker run -p 9000:9000 minio/minio server /data

docker-compose集群+nginx负载均衡:

version: '3.7'

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:
  minio1:
    image: minio/minio:RELEASE.2020-10-18T21-54-12Z
    volumes:
      - data1-1:/data1
      - data1-2:/data2
    expose:
      - "9000"
    environment:
      MINIO_ACCESS_KEY: minio
      MINIO_SECRET_KEY: minio123
    command: server http://minio{1...4}/data{1...2}
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  minio2:
    image: minio/minio:RELEASE.2020-10-18T21-54-12Z
    volumes:
      - data2-1:/data1
      - data2-2:/data2
    expose:
      - "9000"
    environment:
      MINIO_ACCESS_KEY: minio
      MINIO_SECRET_KEY: minio123
    command: server http://minio{1...4}/data{1...2}
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  minio3:
    image: minio/minio:RELEASE.2020-10-18T21-54-12Z
    volumes:
      - data3-1:/data1
      - data3-2:/data2
    expose:
      - "9000"
    environment:
      MINIO_ACCESS_KEY: minio
      MINIO_SECRET_KEY: minio123
    command: server http://minio{1...4}/data{1...2}
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  minio4:
    image: minio/minio:RELEASE.2020-10-18T21-54-12Z
    volumes:
      - data4-1:/data1
      - data4-2:/data2
    expose:
      - "9000"
    environment:
      MINIO_ACCESS_KEY: minio
      MINIO_SECRET_KEY: minio123
    command: server http://minio{1...4}/data{1...2}
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  nginx:
    image: nginx:1.19.2-alpine
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "9002:9000"
    depends_on:
      - minio1
      - minio2
      - minio3
      - minio4

## By default this config uses default local driver,
## For custom volumes replace with volume driver configuration.
volumes:
  data1-1:
  data1-2:
  data2-1:
  data2-2:
  data3-1:
  data3-2:
  data4-1:
  data4-2:

nginx.conf

user  nginx;
worker_processes  auto;

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


events {
    worker_connections  1024;
}


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;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

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

    upstream minio {
        server minio1:9000;
        server minio2:9000;
        server minio3:9000;
        server minio4:9000;
    }

    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;

        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;
        }
    }
}

访问:其中9000为对外映射的端口,可以根据实际情况设置,比如我用docker-compose操作时,对外映射端口是9002

http://localhost:9000

Java客户端使用实例:
依赖:

<dependency>
     <groupId>io.minio</groupId>
     <artifactId>minio</artifactId>
     <version>7.1.4</version>
</dependency>

使用:

public class Test1 {
    MinioClient minioClient;

    /**
     * 创建客户端并连接服务器
     * @throws Exception
     */
    @Before
    public void test1() throws Exception{
        minioClient = MinioClient.builder().endpoint("http://192.168.2.45:9002")
                .credentials("minio", "minio123")
                .build();
    }

    /**
     * 创建桶
     */
    @Test
    public void test2() throws Exception {
        BucketExistsArgs bg = BucketExistsArgs.builder().bucket("test1").build();
        boolean b = minioClient.bucketExists(bg);
        if(b){
            System.out.println("bucket exists");
        }else{
            MakeBucketArgs mg = MakeBucketArgs.builder().bucket("test1").build();
            minioClient.makeBucket(mg);
        }
    }

    /**
     * 上传文件
     */
    @Test
    public void test3() throws Exception {
        minioClient.uploadObject(UploadObjectArgs.builder()
                .bucket("test1")
                .filename("G://hello.jpg")
                .object("hello-upload")
                .bucket("test1")
                .build());
    }

    /**
     * put上传
     */
    @Test
    public void test4() throws Exception {
        minioClient.putObject(PutObjectArgs.builder()
                .bucket("test1")
                .stream(new FileInputStream("G://hello.jpg"), 27066, 5*1024*1024)
                .object("hello-put")
                .build());
    }

    /**
     * 获取对象
     */
    @Test
    public void test5() throws Exception {
        try(InputStream in = minioClient.getObject(GetObjectArgs.builder()
                .bucket("test1")
                .object("hello-upload")
                .build())){
            System.out.println("getObject : " + in.read());
        }
    }

    /**
     * 获取桶bucket列表
     */
    @Test
    public void test6() throws Exception {
        List<Bucket> buckets = minioClient.listBuckets();
        buckets.forEach(bucket -> {
            System.out.println("bucket createDate : " + bucket.creationDate());
            System.out.println("bucket name : " + bucket.name());
        });
    }


    /**
     * 获取对象列表
     */
    @Test
    public void test7(){
        Iterable<Result<Item>> objs = minioClient.listObjects(ListObjectsArgs.builder()
                .bucket("test1")
                .prefix("hello")
                .build());
        objs.forEach(obj -> {
            try {
                System.out.println("obj name : " + obj.get().objectName());
                System.out.println("obj size : " + obj.get().size());
            } catch (Exception e){
                e.printStackTrace();
            }

        });
    }


    /**
     * 删除对象 删除桶
     * @throws Exception
     */
    @Test
    public void test8() throws Exception{
        minioClient.removeObjects(RemoveObjectsArgs.builder()
                .bucket("test1")
                .objects(Arrays.asList(new DeleteObject("hello-upload"), new DeleteObject("hello-put")))
                .build());
        minioClient.removeBucket(RemoveBucketArgs.builder().bucket("test1").build());
    }

    /**
     * 复制对象
     */
    @Test
    public void test9() throws Exception {
        minioClient.copyObject(CopyObjectArgs.builder()
                .bucket("test1")
                .object("hello-copy")
                .source(CopySource.builder()
                        .bucket("test1")
                        .object("hello-upload")
                        .build())
                .build());
    }

    /**
     * 下载对象
     */
    @Test
    public void test10() throws Exception{
        minioClient.downloadObject(DownloadObjectArgs.builder()
                .bucket("test1")
                .object("hello-upload")
                .filename("G://hello-file.jpg")
                .build());
    }

    /**
     * 获取对象的url
     */
    @Test
    public void test11() throws Exception{
        String url = minioClient.getObjectUrl("test1", "hello-upload");
        System.out.println("url : " + url);
    }

    /**
     * 以sql的形式获取对象的内容
     */
    @Test
    public void test12() throws Exception {
        SelectResponseStream responseStream = minioClient.selectObjectContent(SelectObjectContentArgs.builder()
                .bucket("test1")
                .object("hello-upload")
                .inputSerialization(new InputSerialization())
                .outputSerialization(new OutputSerialization(new Character('1')))
                .sqlExpression("select * from hello-upload")
                .build());
        byte[] buf = new byte[521];
        responseStream.read(buf);
        System.out.println(StrUtil.str(buf, CharsetUtil.CHARSET_UTF_8));
    }

    @Test
    public void test13() throws Exception{
        minioClient.removeObject(RemoveObjectArgs.builder().bucket("test1").object("hello").build());
        minioClient.removeObject(RemoveObjectArgs.builder().bucket("test1").object("hello1").build());
        minioClient.removeObject(RemoveObjectArgs.builder().bucket("test1").object("hello2").build());
        minioClient.removeObject(RemoveObjectArgs.builder().bucket("test1").object("hello3").build());
    }
}    

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