docker搭建minio及java sdk使用过程详解

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1minio简洁

MinIO 是一款高性能、分布式的对象存储系统. 它是一款软件产品, 可以100%的运行在标准硬件。即X86等低成本机器也能够很好的运行MinIO。

MinIO与传统的存储和其他的对象存储不同的是：它一开始就针对性能要求更高的私有云标准进行软件架构设计。因为MinIO一开始就只为对象存储而设计。所以他采用了更易用的方式进行设计，它能实现对象存储所需要的全部功能，在性能上也更加强劲，它不会为了更多的业务功能而妥协，失去MinIO的易用性、高效性。这样的结果所带来的好处是：它能够更简单的实现局有弹性伸缩能力的原生对象存储服务。

MinIO在传统对象存储用例（例如辅助存储，灾难恢复和归档）方面表现出色。同时，它在机器学习、大数据、私有云、混合云等方面的存储技术上也独树一帜。当然，也不排除数据分析、高性能应用负载、原生云的支持。

minio社区版本开源免费，在没有预算使用oss的时候可以考虑使用。

2 docker搭建minio

minio是支持云原生的，所以直接讲使用docker来搭建，当然也可以使用k8s，直接下载官方的chart使用即可。

2.1 单节点

单节点可以直接使用docker run启动即可

docker run \
  -p 9000:9000 \
  -p 9001:9001 \
  minio/minio server /data --console-address ":9001"

也可以使用docker-compose来运行。

编写docker-compose.yaml

version: '3'
services:
  minio:
    image: minio/minio
    hostname: "minio"
    ports:
      - 9000:9000 
      - 9001:9001
    environment:
      MINIO_ACCESS_KEY: admin #控制台登录账号
      MINIO_SECRET_KEY: 12345678 #控制台登录密码
    volumes:
      - ./data:/data      #存储路径         
      - ./config:/root/.minio/   #配置文件  
    command: server --console-address ':9001' /data  
    privileged: true
    restart: always

创建挂载的文件目录，运行docker-compos启动。

docker-compser up -d

输入ip:9001 输入admin/12345678进入控制台

控制台：

创建bucket，就可以上传文件了。

输入名称保存。

可以配置，相关策略，这里就不说明了。

可以上传下载操对象文件。

2.2 多节点部署

多节点部署使用docker-compse来模拟。创建4个节点，每个节点挂载两份数据。

编写docker-compose.yaml

version: '3'

# 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
    hostname: minio1
    volumes:
      - ./data1-1:/data1
      - ./data1-2:/data2
    expose:
      - "9000"
      - "9001"
    environment:
      MINIO_ROOT_USER: minio
      MINIO_ROOT_PASSWORD: minio123
    command: server --console-address ":9001" 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
    hostname: minio2
    volumes:
      - ./data2-1:/data1
      - ./data2-2:/data2
    expose:
      - "9000"
      - "9001"
    environment:
      MINIO_ROOT_USER: minio
      MINIO_ROOT_PASSWORD: minio123
    command: server --console-address ":9001" 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
    hostname: minio3
    volumes:
      - ./data3-1:/data1
      - ./data3-2:/data2
    expose:
      - "9000"
      - "9001"
    environment:
      MINIO_ROOT_USER: minio
      MINIO_ROOT_PASSWORD: minio123
    command: server --console-address ":9001" 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
    hostname: minio4
    volumes:
      - ./data4-1:/data1
      - ./data4-2:/data2
    expose:
      - "9000"
      - "9001"
    environment:
      MINIO_ROOT_USER: minio
      MINIO_ROOT_PASSWORD: minio123
    command: server --console-address ":9001" 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
    hostname: nginx
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "9000:9000"
      - "9001:9001"
    depends_on:
      - minio1
      - minio2
      - minio3
      - minio4

创建挂载的对应的data目录和nginx目录。

使用nginx负载均衡4个节点，创建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;
        server minio4:9000;
    }

    upstream console {
        ip_hash;
        server minio1:9001;
        server minio2:9001;
        server minio3:9001;
        server minio4:9001;
    }

    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;

        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;

        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;
        }
    }
}

运行。

docker-compser up -d

然后进入控制台，操作和单节点一样。

3 java sdk使用minio

sdk使用minio要先获取AccessKey和SecretKey。

在控制台生成。

项目pom文件引入。

<dependency>
    <groupId>io.minio</groupId>
    <artifactId>minio</artifactId>
    <version>8.3.0</version>
</dependency>

编写上传、下载、删除的接口。

package com.test.minio;

import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;

/**
 * 存储文件
 *
 * @author jiangyulu
 */
public interface FileService {
    /**
     * 上传文件
     *
     * @param inputStream inputStream
     * @param fdsFileName    fdsFileName
     * @param img         img
     * @return UUID
     */
    String upload(InputStream inputStream, String fdsFileName, boolean img);


    /**
     * 下载文件
     *
     * @param fdsFileName 文件在fds中的名称
     * @param fileName    重新指定的文件名
     * @param response    response
     */
    void download(String fdsFileName, String fileName, HttpServletResponse response);

    /**
     * 删除
     *
     * @param fdsFileName fdsFileName
     */
    void delete(String fdsFileName);
}

写实现类。

package com.test.minio.impl;


import com.test.minio.FileService;
import io.minio.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.UUID;


/**
 * @author jaingyulu
 */
@Slf4j
@Service("minio")
public class MinioFileServiceImpl implements FileService {

    @Value("{$minio.endpoint}")
    private String endpoint;

    @Value("{$minio.accessKeyId}")
    private String accessKeyId;

    @Value("{$minio.accessKeySecret}")
    private String accessKeySecret;

    @Value("{$minio.bucketName}")
    private String bucketName;


    @Override
    public String upload(InputStream inputStream, String fdsFileName, boolean img) {

        try {
            MinioClient minioClient =
                    MinioClient.builder()
                            .endpoint(endpoint)
                            .credentials(accessKeyId, accessKeySecret)
                            .build();

            boolean found =
                    minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
            if (found) {
                log.info("Bucket already exists.");
            } else {
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
            }

            if (!img) {
                minioClient.putObject(
                        PutObjectArgs.builder()
                                .bucket(bucketName)
                                .object(fdsFileName)
                                .stream(inputStream, inputStream.available(), -1)
                                .build());
            } else {
                minioClient.putObject(
                        PutObjectArgs.builder()
                                .bucket(bucketName)
                                .object(fdsFileName)
                                .stream(inputStream, inputStream.available(), -1)
                                .contentType("image/jpg")
                                .build());
            }

            inputStream.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return UUID.randomUUID().toString();
    }

    @Override
    public void download(String fdsFileName, String fileName, HttpServletResponse response) {
        InputStream in = null;
        try {
            MinioClient minioClient =
                    MinioClient.builder()
                            .endpoint(endpoint)
                            .credentials(accessKeyId, accessKeySecret)
                            .build();
            StatObjectResponse objectStat = minioClient.statObject(StatObjectArgs.builder().bucket(bucketName).object(fdsFileName).build());
            response.setContentType(objectStat.contentType());
            //response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
            in = minioClient.getObject(GetObjectArgs.builder().bucket(bucketName).object(fdsFileName).build());
            IOUtils.copy(in, response.getOutputStream());
        } catch (Exception e) {
            log.error(e.getMessage());
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    log.error(e.getMessage());
                }
            }
        }
    }

    @Override
    public void delete(String fdsFileName) {
        try {
            MinioClient minioClient =
                    MinioClient.builder()
                            .endpoint(endpoint)
                            .credentials(accessKeyId, accessKeySecret)
                            .build();
            minioClient.removeObject(RemoveObjectArgs.builder().bucket(bucketName).object(fdsFileName).build());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

以上完成了minio文件操作的基本功能，其他功能可以查看官方的文档。8.3.0版本sdk比起7.x的变化还是比较大的。

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