Nexus3.x 的私有倉庫
前些天發現了一個巨牛的人工智能學習網站,通俗易懂,風趣幽默,忍不住分享一下給大家。點擊跳轉到教程。
使用 Docker 官方的 Registry 創建的倉庫面臨一些維護問題。比如某些鏡像刪除以后空間默認是不會回收的,需要一些命令去回收空間然后重啟 Registry 程序。在企業中把內部的一些工具包放入 Nexus 中是比較常見的做法,最新版本?Nexus3.x
?全面支持 Docker 的私有鏡像。所以使用?Nexus3.x
?一個軟件來管理?Docker
?,?Maven
?,?Yum
?,?PyPI
?等是一個明智的選擇。
啟動 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 分鐘,如果?nexus3
?容器沒有異常退出,那么你可以使用瀏覽器打開?http://YourIP:8081
?訪問 Nexus 了。
第一次啟動 Nexus 的默認帳號是?admin
?密碼是?admin123
?登錄以后點擊頁面上方的齒輪按鈕進行設置。
?
(PS:我執行到這 nexus3 容器顯示是啟動狀態,但瀏覽器一直訪問不成功,端口已開,查看日志才發現報錯了:
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,如果你解決了請給我講解一下。)
?
創建倉庫
創建一個私有倉庫的方法:?Repository->Repositories
?點擊右邊菜單?Create repository
?選擇?docker (hosted)
- Name: 倉庫的名稱
- HTTP: 倉庫單獨的訪問端口
- Enable Docker V1 API: 如果需要同時支持 V1 版本請勾選此項(不建議勾選)。
- Hosted -> Deployment pollcy: 請選擇 Allow redeploy 否則無法上傳 Docker 鏡像。
其它的倉庫創建方法請各位自己摸索,還可以創建一個 docker (proxy) 類型的倉庫鏈接到 DockerHub 上。再創建一個 docker (group) 類型的倉庫把剛才的 hosted 與 proxy 添加在一起。主機在訪問的時候默認下載私有倉庫中的鏡像,如果沒有將鏈接到 DockerHub 中下載并緩存到 Nexus 中。
添加訪問權限
菜單?Security->Realms
?把 Docker Bearer Token Realm 移到右邊的框中保存。
添加用戶規則:菜單?Security->Roles
->Create role
?在?Privlleges
?選項搜索 docker 把相應的規則移動到右邊的框中然后保存。
添加用戶:菜單?Security->Users
->Create local user
?在?Roles
?選項中選中剛才創建的規則移動到右邊的窗口保存。
NGINX 加密代理
證書的生成請參見?私有倉庫高級配置
?里面證書生成一節。
NGINX 示例配置如下
upstream register
{server "YourHostName OR IP":5001; #端口為上面添加的私有鏡像倉庫是設置的 HTTP 選項的端口號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;#如果沒有 DNS 服務器做解析,請刪除此選項使用本機 IP 地址訪問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 主機訪問鏡像倉庫
如果不啟用 SSL 加密可以通過前面章節的方法添加信任地址到 Docker 的配置文件中然后重啟 Docker
使用 SSL 加密以后程序需要訪問就不能采用修改配置的訪問了。具體方法如下:
$ 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
?進行測試,用戶名密碼填寫上面 Nexus 中生成的。
?
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轉自:https://yeasy.gitbooks.io/docker_practice/repository/nexus3_registry.html