Nexus3.x 的私有仓库
前些天发现了一个巨牛的人工智能学习网站,通俗易懂,风趣幽默,忍不住分享一下给大家。点击跳转到教程。
使用 Docker 官方的 Registry 创建的仓库面临一些维护问题。比如某些镜像删除以后空间默认是不会回收的,需要一些命令去回收空间然后重启 Registry 程序。在企业中把内部的一些工具包放入 Nexus 中是比较常见的做法,最新版本 Nexus3.x
全面支持 Docker 的私有镜像。所以使用 Nexus3.x
一个软件来管理 Docker
, Maven
, Yum
, PyPI
等是一个明智的选择。
启动 Nexus 容器
$ docker run -d --name nexus3 --restart=always \-p 8081:8081 \--mount src=nexus-data,target=/nexus-data \sonatype/nexus3
等待 3-5 分钟,如果 nexus3
容器没有异常退出,那么你可以使用浏览器打开 http://YourIP:8081
访问 Nexus 了。
第一次启动 Nexus 的默认帐号是 admin
密码是 admin123
登录以后点击页面上方的齿轮按钮进行设置。
(PS:我执行到这 nexus3 容器显示是启动状态,但浏览器一直访问不成功,端口已开,查看日志才发现报错了:
2018-07-02 01:34:34,175+0000 ERROR [FelixStartLevel] *SYSTEM org.sonatype.nexus.internal.orient.OrientBootstrap - Failed transition: NEW -> STARTED
java.lang.reflect.InvocationTargetException: nullat org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:45)at org.sonatype.nexus.common.stateguard.StateGuard$TransitionImpl.run(StateGuard.java:191)at org.sonatype.nexus.common.stateguard.TransitionsInterceptor.invoke(TransitionsInterceptor.java:56)at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:77)at com.google.inject.internal.InterceptorStackCallback.intercept(InterceptorStackCallback.java:55)at org.sonatype.nexus.internal.orient.OrientBootstrap$$EnhancerByGuice$$221620cd.start(<generated>)at org.sonatype.nexus.extender.NexusLifecycleManager.startComponent(NexusLifecycleManager.java:155)at org.sonatype.nexus.extender.NexusLifecycleManager.to(NexusLifecycleManager.java:95)at org.sonatype.nexus.extender.NexusContextListener.frameworkEvent(NexusContextListener.java:189)at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1429)at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.OutOfMemoryError: nullat sun.misc.Unsafe.allocateMemory(Native Method)at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:127)at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)at com.orientechnologies.common.directmemory.OByteBufferPool.allocateBuffer(OByteBufferPool.java:410)at com.orientechnologies.common.directmemory.OByteBufferPool.acquireDirect(OByteBufferPool.java:361)at com.orientechnologies.orient.core.storage.cache.local.OWOWCache.load(OWOWCache.java:841)at com.orientechnologies.orient.core.storage.cache.local.twoq.O2QCache.updateCache(O2QCache.java:1167)at com.orientechnologies.orient.core.storage.cache.local.twoq.O2QCache.doLoad(O2QCache.java:361)at com.orientechnologies.orient.core.storage.cache.local.twoq.O2QCache.allocateNewPage(O2QCache.java:412)at com.orientechnologies.orient.core.storage.impl.local.paginated.atomicoperations.OAtomicOperation.commitChanges(OAtomicOperation.java:434)at com.orientechnologies.orient.core.storage.impl.local.paginated.atomicoperations.OAtomicOperationsManager.endAtomicOperation(OAtomicOperationsManager.java:468)at com.orientechnologies.orient.core.storage.impl.local.paginated.atomicoperations.OAtomicOperationsManager.endAtomicOperation(OAtomicOperationsManager.java:412)at com.orientechnologies.orient.core.storage.impl.local.paginated.base.ODurableComponent.endAtomicOperation(ODurableComponent.java:113)at com.orientechnologies.orient.core.storage.impl.local.paginated.OPaginatedCluster.create(OPaginatedCluster.java:192)at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.addClusterInternal(OAbstractPaginatedStorage.java:4365)at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.doAddCluster(OAbstractPaginatedStorage.java:4346)at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.create(OAbstractPaginatedStorage.java:487)at com.orientechnologies.orient.core.storage.impl.local.paginated.OLocalPaginatedStorage.create(OLocalPaginatedStorage.java:129)at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.create(ODatabaseDocumentTx.java:438)at com.orientechnologies.orient.server.OSystemDatabase.init(OSystemDatabase.java:160)at com.orientechnologies.orient.server.OSystemDatabase.<init>(OSystemDatabase.java:44)at com.orientechnologies.orient.server.OServer.initSystemDatabase(OServer.java:1309)at com.orientechnologies.orient.server.OServer.activate(OServer.java:367)at org.sonatype.nexus.internal.orient.DatabaseServerImpl.doStart(DatabaseServerImpl.java:186)at org.sonatype.nexus.common.stateguard.StateGuardLifecycleSupport.start(StateGuardLifecycleSupport.java:67)at org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:39)at org.sonatype.nexus.common.stateguard.StateGuard$TransitionImpl.run(StateGuard.java:191)at org.sonatype.nexus.common.stateguard.TransitionsInterceptor.invoke(TransitionsInterceptor.java:56)at org.sonatype.nexus.internal.orient.OrientBootstrap.doStart(OrientBootstrap.java:73)at org.sonatype.nexus.common.stateguard.StateGuardLifecycleSupport.start(StateGuardLifecycleSupport.java:67)at org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:39)at org.sonatype.nexus.common.stateguard.StateGuard$TransitionImpl.run(StateGuard.java:191)at org.sonatype.nexus.common.stateguard.TransitionsInterceptor.invoke(TransitionsInterceptor.java:56)... 6 common frames omitted
原因不明,如果你解决了请给我讲解一下。)
创建仓库
创建一个私有仓库的方法: Repository->Repositories
点击右边菜单 Create repository
选择 docker (hosted)
- Name: 仓库的名称
- HTTP: 仓库单独的访问端口
- Enable Docker V1 API: 如果需要同时支持 V1 版本请勾选此项(不建议勾选)。
- Hosted -> Deployment pollcy: 请选择 Allow redeploy 否则无法上传 Docker 镜像。
其它的仓库创建方法请各位自己摸索,还可以创建一个 docker (proxy) 类型的仓库链接到 DockerHub 上。再创建一个 docker (group) 类型的仓库把刚才的 hosted 与 proxy 添加在一起。主机在访问的时候默认下载私有仓库中的镜像,如果没有将链接到 DockerHub 中下载并缓存到 Nexus 中。
添加访问权限
菜单 Security->Realms
把 Docker Bearer Token Realm 移到右边的框中保存。
添加用户规则:菜单 Security->Roles
->Create role
在 Privlleges
选项搜索 docker 把相应的规则移动到右边的框中然后保存。
添加用户:菜单 Security->Users
->Create local user
在 Roles
选项中选中刚才创建的规则移动到右边的窗口保存。
NGINX 加密代理
证书的生成请参见 私有仓库高级配置
里面证书生成一节。
NGINX 示例配置如下
upstream register
{server "YourHostName OR IP":5001; #端口为上面添加的私有镜像仓库是设置的 HTTP 选项的端口号check interval=3000 rise=2 fall=10 timeout=1000 type=http;check_http_send "HEAD / HTTP/1.0\r\n\r\n";check_http_expect_alive http_4xx;
}server {server_name YourDomainName;#如果没有 DNS 服务器做解析,请删除此选项使用本机 IP 地址访问listen 443 ssl;ssl_certificate key/example.crt;ssl_certificate_key key/example.key;ssl_session_timeout 5m;ssl_protocols TLSv1 TLSv1.1 TLSv1.2;ssl_ciphers HIGH:!aNULL:!MD5;ssl_prefer_server_ciphers on;large_client_header_buffers 4 32k;client_max_body_size 300m;client_body_buffer_size 512k;proxy_connect_timeout 600;proxy_read_timeout 600;proxy_send_timeout 600;proxy_buffer_size 128k;proxy_buffers 4 64k;proxy_busy_buffers_size 128k;proxy_temp_file_write_size 512k;location / {proxy_set_header Host $host;proxy_set_header X-Forwarded-Proto $scheme;proxy_set_header X-Forwarded-Port $server_port;proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;proxy_http_version 1.1;proxy_set_header Upgrade $http_upgrade;proxy_set_header Connection $connection_upgrade;proxy_redirect off;proxy_set_header X-Real-IP $remote_addr;proxy_pass http://register;proxy_read_timeout 900s;}error_page 500 502 503 504 /50x.html;
}
Docker 主机访问镜像仓库
如果不启用 SSL 加密可以通过前面章节的方法添加信任地址到 Docker 的配置文件中然后重启 Docker
使用 SSL 加密以后程序需要访问就不能采用修改配置的访问了。具体方法如下:
$ openssl s_client -showcerts -connect YourDomainName OR HostIP:443 </dev/null 2>/dev/null|openssl x509 -outform PEM >ca.crt
$ cat ca.crt | sudo tee -a /etc/ssl/certs/ca-certificates.crt
$ systemctl restart docker
使用 docker login YourDomainName OR HostIP
进行测试,用户名密码填写上面 Nexus 中生成的。
转自:https://yeasy.gitbooks.io/docker_practice/repository/nexus3_registry.html