搭建本地Maven仓库Nexus

使用 Docker 安装

$ docker volume create --name nexus_data

$ docker run -d -p 8081:8081--name nexus -v nexus_data:/nexus-data sonatype/nexus3

8081 是 Nexus UI 端口

使用 Docker Compose 安装

services:
    nexus:
        image: sonatype/nexus3
        platform: linux/amd64
        ports:
            - "8081:8081"
        volumes:
            - nexus_data:/nexus-data
            - /etc/localtime:/etc/localtime:ro

volumes:
    nexus_data:

访问并配置 Nexus

访问 http://127.0.0.1:8081/ 或者是 http://<your IP>:8081，用户名为 admin ，初始密码在容器里的 /nexus-data/admin.password 文件

docker ps

# docker-nexus-1 为容器名称
docker exec -it docker-nexus-1 cat /nexus-data/admin.password

登录之后，将密码修改为自己的密码，比如：admin。

开启匿名访问权限

依次点击【Security】–【Realms】,将【Docker Bearer Token Tealm】添加到右侧，然后保存。

创建 Maven 仓库

Nexus 提供三种类型的仓库：

hosted : 本地存储
proxy : 提供代理其他仓库的类型，如阿里云镜像加速器
groudp : 组类型，实质作用是组合多个仓库为一个地址

创建一个 maven(proxy) 仓库，名称：aliyun，Version Policy 选择 Mixed，URL 地址：https://maven.aliyun.com/nexus/content/groups/public/，并修改 maven-public 仓库，将 aliyun 加入 maven-public 的 Group 中。

注意：保持 hosted 仓库在 proxy 仓库之前，这样方便下载依赖时先从本地查找。

创建 Docker 仓库

先创建一个 blob store 用于存储 docker 文件。

然后，创建三个仓库：

创建一个 docker(hosted) 仓库，名称为：docker-local，Blob store 选择上面创建的 docker，选择 Allow anonymous docker pull 。
创建一个 docker(proxy) 仓库，名称为：docker-remote，地址填 https://docker.1panel.live/ 或其他代理地址也行，Docker Index 选择：User Docker Hub，Blob store 选择上面创建的 docker，选择 Allow anonymous docker pull。
创建一个 docker(group) 仓库，名称为：docker

修改 docker 配置：

vim /etc/docker/daemon.json

{
  "registry-mirrors" : [
    "https://docker-registry.chensoul.cc"
  ]
}

重启 docker。

配置反向代理

准备好 SSL 文件，放置 /etc/nginx/ssl 目录
使用源码编译安装 nignx，安装目录 /usr/local/nginx

修改 /usr/local/nginx/conf/nginx.conf 文件，添加 include /etc/nginx/conf.d/*.conf

#user  nobody;
worker_processes  1;

events {
    worker_connections  1024;
}

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

    sendfile        on;
    keepalive_timeout  65;

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

为 nexus 配置反向代理

/etc/nginx/conf.d/ 目录下添加 nexus.conf 文件：

server {
    listen 80;
    server_name nexus.chensoul.cc;
    rewrite ^ https://$http_host$request_uri? permanent;
}

server {
     listen 443 ssl;
     server_name nexus.chensoul.cc;
     ssl_certificate /etc/nginx/ssl/all.crt;
     ssl_certificate_key /etc/nginx/ssl/all.key;
     ssl_session_timeout 5m;
     ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
     ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE;
     ssl_prefer_server_ciphers on;

     client_max_body_size 1g;
     access_log /var/log/nginx/nexus.log;

     location / {
        proxy_pass     http://192.168.1.107:8081;
				proxy_read_timeout  90;
    		proxy_set_header Host $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;
     }
}

192.168.1.107 为 nexus 所在服务器的 IP 地址

为 docker 注册中心配置反向代理

参考 https://gist.github.com/abdennour/74c5de79e57a47f3351217d674238da8 ，在 /etc/nginx/conf.d/ 目录下添加 docker-registry.conf 文件：

server {
    listen 80;
    server_name docker-registry.chensoul.cc;
    rewrite ^ https://$http_host$request_uri? permanent;
}

server {
     listen 443 ssl;
     server_name docker-registry.chensoul.cc;
     ssl_certificate /etc/nginx/ssl/all.crt;
     ssl_certificate_key /etc/nginx/ssl/all.key;
     ssl_session_timeout 5m;
     ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
     ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE;
     ssl_prefer_server_ciphers on;

     access_log /var/log/nginx/docker-registry.log;

     # disable any limits to avoid HTTP 413 for large image uploads
     client_max_body_size 0;
     # required to avoid HTTP 411: see Issue #1486 (https://github.com/docker/docker/issues/1486)
     chunked_transfer_encoding on;

     location ~ ^/(v1|v2)/[^/]+/?[^/]+/blobs/ {
          if ($request_method ~* (POST|PUT|DELETE|PATCH|HEAD) ) {
              rewrite ^/(.*)$ /repository/docker-local/$1 last;
          }
          rewrite ^/(.*)$ /repository/docker/$1 last;
      }

      location ~ ^/(v1|v2)/ {
          if ($request_method ~* (POST|PUT|DELETE|PATCH) ) {
              rewrite ^/(.*)$ /repository/docker-local/$1 last;
          }
          rewrite ^/(.*)$ /repository/docker/$1 last;
      }

      location / {
          proxy_pass http://192.168.1.107:8081/;
          proxy_read_timeout  90;
          proxy_set_header Host $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 "http";
      }
}

如果使用 docker 中的 nginx 配置反向代理，则 docker-compose 文件如下：

services:
   nginx:
        image: nginx:1.27-alpine
        volumes:
            - ./nginx.conf:/etc/nginx/nginx.conf
        ports:
            - "80:80"
   
   nexus:
        image: sonatype/nexus3
        platform: linux/amd64
        ports:
            - "8081:8081"
        volumes:
            - nexus_data:/nexus-data
            - /etc/localtime:/etc/localtime:ro

volumes:
    nexus_data:

./nginx.conf 文件见上面。

测试

Maven 测试

配置maven的配置文件settings.xml：

<?xml version="1.0" encoding="UTF-8"?>
<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.2.0 http://maven.apache.org/xsd/settings-1.2.0.xsd" xmlns="http://maven.apache.org/SETTINGS/1.2.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <servers>
    <server>
      <username>nexus-release</username>
      <password>admin</password>
      <id>central</id>
    </server>
    <server>
      <username>nexus-snapshot</username>
      <password>admin</password>
      <id>snapshots</id>
    </server>
  </servers>
  
  <mirrors>     
    <mirror>  
        <id>nexus</id>  
        <name>nexus repository</name>  
        <url>https://nexus.chensoul.cc/repository/maven-public/</url>  
        <mirrorOf>central</mirrorOf>  
    </mirror>     
  </mirrors>
  
  <profiles>
    <profile>
      <repositories>
        <repository>
          <snapshots>
            <enabled>false</enabled>
          </snapshots>
          <id>central</id>
          <name>nexus-release</name>
          <url>https://nexus.chensoul.cc/repository/maven-release</url>
        </repository>
        <repository>
          <snapshots />
          <id>snapshots</id>
          <name>nexus-snapshot</name>
          <url>https://nexus.chensoul.cc/repository/maven-snapshot</url>
        </repository>
      </repositories>
      <pluginRepositories>
        <pluginRepository>
          <snapshots>
            <enabled>false</enabled>
          </snapshots>
          <id>central</id>
          <name>nexus-release</name>
          <url>https://nexus.chensoul.cc/repository/maven-release</url>
        </pluginRepository>
        <pluginRepository>
          <snapshots />
          <id>snapshots</id>
          <name>nexus-snapshot</name>
          <url>https://nexus.chensoul.cc/repository/maven-snapshot</url>
        </pluginRepository>
      </pluginRepositories>
      <id>nexus</id>
    </profile>
  </profiles>
  
  <activeProfiles>
    <activeProfile>nexus</activeProfile>
  </activeProfiles>
</settings>

docker 测试

docker login docker-registry.chensoul.cc

拉取镜像：

$ docker pull alpine:3.14
3.16: Pulling from library/alpine
550f8bf8502c: Pull complete
Digest: sha256:452e7292acee0ee16c332324d7de05fa2c99f9994ecc9f0779c602916a672ae4
Status: Downloaded newer image for alpine:3.16
docker.io/library/alpine:3.16

从日志可以看到是从 docker.io 下载镜像。

接下来，试试从 docker-registry.chensoul.cc 下载镜像

$ docker pull docker-registry.chensoul.cc/alpine:3.16
3.16: Pulling from alpine
Digest: sha256:452e7292acee0ee16c332324d7de05fa2c99f9994ecc9f0779c602916a672ae4
Status: Downloaded newer image for docker-registry.chensoul.cc/alpine:3.16
docker-registry.chensoul.cc/alpine:3.16

从日志可以看到是从 docker-registry.chensoul.cc 下载镜像，并且在 https://nexus.chensoul.cc/#browse/browse:docker 可以看到下载的镜像。

推送镜像：

$ docker tag alpine:3.16 docker-registry.chensoul.cc/alpine:3.16-custom

$ docker push docker-registry.chensoul.cc/alpine:3.16-custom
The push refers to repository [docker-registry.chensoul.cc/alpine]
edbfd2db8ef2: Pushed
3.16-custom: digest: sha256:4bdb4ac63839546daabfe0a267a363b3effa17ce02ac5f42d222174484c5686c size: 528

参考文章

nexus搭建docker私服