Nexus3.x 的私有倉(cāng)庫(kù)

前些天發(fā)現(xiàn)了一個(gè)巨牛的人工智能學(xué)習(xí)網(wǎng)站，通俗易懂，風(fēng)趣幽默，忍不住分享一下給大家。點(diǎn)擊跳轉(zhuǎn)到教程。

使用 Docker 官方的 Registry 創(chuàng)建的倉(cāng)庫(kù)面臨一些維護(hù)問(wèn)題。比如某些鏡像刪除以后空間默認(rèn)是不會(huì)回收的，需要一些命令去回收空間然后重啟 Registry 程序。在企業(yè)中把內(nèi)部的一些工具包放入 Nexus 中是比較常見(jiàn)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(gè)軟件來(lái)管理?Docker?,?Maven?,?Yum?,?PyPI?等是一個(gè)明智的選擇。

啟動(dòng) 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(méi)有異常退出，那么你可以使用瀏覽器打開?http://YourIP:8081?訪問(wèn) Nexus 了。

第一次啟動(dòng) Nexus 的默認(rèn)帳號(hào)是?admin?密碼是?admin123?登錄以后點(diǎn)擊頁(yè)面上方的齒輪按鈕進(jìn)行設(shè)置。

?

（PS：我執(zhí)行到這 nexus3 容器顯示是啟動(dòng)狀態(tài)，但瀏覽器一直訪問(wèn)不成功，端口已開，查看日志才發(fā)現(xiàn)報(bào)錯(cuò)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(qǐng)給我講解一下。）

?

創(chuàng)建倉(cāng)庫(kù)

創(chuàng)建一個(gè)私有倉(cāng)庫(kù)的方法：?Repository->Repositories?點(diǎn)擊右邊菜單?Create repository?選擇?docker (hosted)

• Name: 倉(cāng)庫(kù)的名稱
• HTTP: 倉(cāng)庫(kù)單獨(dú)的訪問(wèn)端口
• Enable Docker V1 API: 如果需要同時(shí)支持 V1 版本請(qǐng)勾選此項(xiàng)（不建議勾選）。
• Hosted -> Deployment pollcy: 請(qǐng)選擇 Allow redeploy 否則無(wú)法上傳 Docker 鏡像。

其它的倉(cāng)庫(kù)創(chuàng)建方法請(qǐng)各位自己摸索，還可以創(chuàng)建一個(gè) docker (proxy) 類型的倉(cāng)庫(kù)鏈接到 DockerHub 上。再創(chuàng)建一個(gè) docker (group) 類型的倉(cāng)庫(kù)把剛才的 hosted 與 proxy 添加在一起。主機(jī)在訪問(wèn)的時(shí)候默認(rèn)下載私有倉(cāng)庫(kù)中的鏡像，如果沒(méi)有將鏈接到 DockerHub 中下載并緩存到 Nexus 中。

添加訪問(wèn)權(quán)限

菜單?Security->Realms?把 Docker Bearer Token Realm 移到右邊的框中保存。

添加用戶規(guī)則：菜單?Security->Roles->Create role?在?Privlleges?選項(xiàng)搜索 docker 把相應(yīng)的規(guī)則移動(dòng)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(xiàng)中選中剛才創(chuàng)建的規(guī)則移動(dòng)到右邊的窗口保存。

NGINX 加密代理

證書的生成請(qǐng)參見(jiàn)?私有倉(cāng)庫(kù)高級(jí)配置?里面證書生成一節(jié)。

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(cāng)庫(kù)是設(shè)置的 HTTP 選項(xiàng)的端口號(hào)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(méi)有 DNS 服務(wù)器做解析，請(qǐng)刪除此選項(xiàng)使用本機(jī) IP 地址訪問(wèn)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(jī)訪問(wèn)鏡像倉(cāng)庫(kù)

如果不啟用 SSL 加密可以通過(guò)前面章節(jié)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(wèn)就不能采用修改配置的訪問(wèn)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(jìn)行測(cè)試，用戶名密碼填寫上面 Nexus 中生成的。

?

?

轉(zhuǎn)自：https://yeasy.gitbooks.io/docker_practice/repository/nexus3_registry.html

總結(jié)

以上是生活随笔為你收集整理的Docker 环境：Nexus3.x 的私有仓库的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。