一：Docker私有倉(cāng)庫(kù)安裝

1、 下載鏡像是有鏡像倉(cāng)庫(kù)：

[root@localhost ~]# systemctl start docker#如果已經(jīng)有鏡像了，強(qiáng)制刪除原來(lái)的鏡像的方式如下： [root@xxx-pub /]# docker rmi -f docker.io/registry Untagged: docker.io/registry:latest Untagged: docker.io/registry@sha256:51bb55f23ef7e25ac9b8313b139a8dd45baa832943c8ad8f7da2ddad6355b3c8 [root@xxx-pub /]##開(kāi)始下載最新的鏡像。 [root@localhost ~]# docker pull registry Using default tag: latest latest: Pulling from library/registry 4064ffdc82fe: Pull complete c12c92d1c5a2: Pull complete 4fbc9b6835cc: Pull complete 765973b0f65f: Pull complete 3968771a7c3a: Pull complete Digest: sha256:20bbbc0f6384cf7dc6e292ccbe75935b73c92ec776543c970904bc60feceb129 Status: Downloaded newer image for registry:latest [root@localhost ~]#

2、 啟動(dòng)并且掛載鏡像倉(cāng)庫(kù)到本地磁盤(pán)：

[root@xxx-pub /]# docker run -d -v /registry:/home/docker-registry -p 5000:5000 --restart=always --privileged=true --name registry registry:latest Unable to find image 'registry:latest' locally Trying to pull repository docker.io/library/registry ... latest: Pulling from docker.io/library/registry Digest: sha256:51bb55f23ef7e25ac9b8313b139a8dd45baa832943c8ad8f7da2ddad6355b3c8 Status: Downloaded newer image for docker.io/registry:latest b7bd2b14ed488936afe798be95f3cd56f604fb092d45cf6f4a58359bcad0d34c [root@xxx-pub /]#

-v /registry:/home/docker-registry：默認(rèn)情況下，會(huì)將倉(cāng)庫(kù)存放于容器內(nèi)的/home/docker-registry目錄下，指定本地目錄掛載到容器。
-p 5000:5000 ：端口映射。即本地5000端口，映射到registry中的5000端口。
–restart=always1：在容器退出時(shí)總是重啟容器，主要應(yīng)用在生產(chǎn)環(huán)境。
–privileged=true：在CentOS7中的安全模塊selinux把權(quán)限禁掉了，參數(shù)給容器加特權(quán)，不加上傳鏡像會(huì)報(bào)類(lèi)似權(quán)限錯(cuò)誤。OSError: [Errno 13] Permission denied: ‘/tmp/registry/repositories/liibrary’)或者（Received unexpected HTTP status: 500 Internal Server Error）
–name registry：指定容器的名稱(chēng)。

為了持久化數(shù)據(jù)，將volume掛載到/home/docker-registry

3、 我們給一個(gè)本地鏡像打個(gè)標(biāo)簽然后上傳：
查看本地有哪些鏡像：

[root@xxx-pub /]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos centos7.5.1804 fdf13fa91c6e 4 weeks ago 200 MB docker.io/registry latest b2b03e9146e1 2 months ago 33.3 MB [root@xxx-pub /]#

以docker.io/centos為案例。

[root@xxx-pub /]# docker tag fdf13fa91c6e localhost:5000/xxx-centos7.5.1804:1.0 ##localhost:5000表示倉(cāng)庫(kù)地址，fdf13fa91c6e表示images id，xxx-centos7.5.1804表示鏡像名稱(chēng)，1.0表示版本號(hào)。或： [root@xxx-pub /]# docker tag docker.io/centos:centos7.5.1804 localhost:5000/xxx-centos7.5.1804:1.0

4、 直接上傳：

[root@xxx-pub /]# docker push localhost:5000/xxx-centos7.5.1804:1.0 The push refers to a repository [localhost:5000/xxx-centos7.5.1804] bcc97fbfc9e1: Pushed 1.0: digest: sha256:7c14180942615fef85cb5c8b1388e028be1a8f79694a5fa30a4025173e42ad61 size: 529 [root@xxx-pub /]#

在PUSH的過(guò)程中可能報(bào)類(lèi)似如下的錯(cuò)誤（以下是網(wǎng)絡(luò)上的錯(cuò)誤提示）：

[root@localhost ~]# docker push 192.168.174.128:5000/hello:latest The push refers to a repository [192.168.174.128:5000/hello] unable to ping registry endpoint https://192.168.174.128:5000/v0/ v2 ping attempt failed with error: Get https://192.168.174.128:5000/v2/: http: server gave HTTP response to HTTPS clientv1 ping attempt failed with error: Get https://192.168.174.128:5000/v1/_ping: http: server gave HTTP response to HTTPS client [root@localhost ~]#

解決辦法：
使用的是https,修改/etc/sysconfig/docker(這里是Centos7下的docker)文件，加上ADD_REGISTRY=’–add-registry 192.168.18.162:5000’,INSECURE_REGISTRY=’–insecure-registry 192.168.18.162:5000’ (上面是歷史的docker版本的配置)，如下圖：

但是在新的docker容器倉(cāng)庫(kù)的配置中，自己的docker容器中的配置采用（這里在docker registry和另外pull鏡像的機(jī)器上都指定如下的配置）：

指定完成之后，要重啟docker，重啟的配置如下：

[root@youx-pub volumes]# systemctl restart docker

另外：查看一下docker.service,查看一下配置文件：

[root@youx-pub registry]find / -name docker.service /sys/fs/cgroup/memory/system.slice/docker.service /sys/fs/cgroup/devices/system.slice/docker.service /sys/fs/cgroup/blkio/system.slice/docker.service /sys/fs/cgroup/cpu,cpuacct/system.slice/docker.service /sys/fs/cgroup/pids/system.slice/docker.service /sys/fs/cgroup/systemd/system.slice/docker.service /usr/lib/systemd/system/docker.service [root@youx-pub registry]# vim /usr/lib/systemd/system/docker.service

然后執(zhí)行一下：

#因?yàn)榭梢杂糜趕ystemctl啟動(dòng)的docker.service文件變化了，所以得執(zhí)行以下配置。然后執(zhí)行docker的重啟工作 systemctl daemon-reload systemctl restart docker

如果還是報(bào)如下錯(cuò)誤：

[root@youx-pub registry]# docker push 192.168.18.162:5000/nginx:1.2 The push refers to a repository [192.168.18.162:5000/nginx] Get https://192.168.18.162:5000/v1/_ping: http: server gave HTTP response to HTTPS client [root@youx-pub registry]#

解決辦法是：
在/etc/docker下創(chuàng)建daemon.json，內(nèi)容是：

{"insecure-registries":["192.168.18.162:5000"]}

然后再重啟docker容器：

[root@youx-pub volumes]# systemctl restart docker

5、 上傳完成，我們可以查看一下掛載目錄是否有鏡像：

[root@xxx-pub docker-registry]# pwd /home/docker-registry [root@xxx-pub docker-registry] # ls /registry/ Docker

6、 關(guān)于本地鏡像的查看：

[root@xxx-pub docker-registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["xxx-centos7.5.1804","xxx-centos7.5.1804-v1.0"]} [root@xxx-pub docker-registry]#

7、 看到有兩個(gè)鏡像，我們要獲取他的標(biāo)簽信息以便下載呢：

[root@xxx-pub docker-registry]# curl http://192.168.18.162:5000/v2/xxx-centos7.5.1804/tags/list {"name":"xxx-centos7.5.1804","tags":["1.0"]} [root@xxx-pub docker-registry]#

8、 然后我們直接下載鏡像(到另電腦上)：

[root@bigdata2 ~]# docker pull 192.168.18.162:5000/youx-centos7.5.1804:1.0 Using default tag: latest Trying to pull repository 192.168.18.162/youx-centos7.5.1804 ... Get https://192.168.18.162/v1/_ping: dial tcp 192.168.18.162:443: getsockopt: no route to host [root@bigdata2 ~]#

如果出現(xiàn)上面的情況，解決辦法是：
編譯：

[root@youx-pub volumes]# vim /etc/containers/registries.conf 這個(gè)文件。 舊的是編輯：/etc/sysconfig/docker 這個(gè)文件

然后重啟docker

[root@youx-pub volumes]# systemctl restart docker

然后發(fā)現(xiàn)可以pull了

#要注意的是，這里的地址是：倉(cāng)庫(kù)地址：倉(cāng)庫(kù)端口號(hào)/REPOSITORY:TAG [root@bigdata2 ~]# docker pull 192.168.18.162:5000/youx-centos7.5.1804:1.0

如果還不行，需要修改/etc/docker/daemon.json,內(nèi)容如下：

[root@bigdata2 docker]# cat daemon.json {"insecure-registries":["192.168.18.162:5000"]}

二、從另外一臺(tái)機(jī)器上上傳鏡像到docker鏡像倉(cāng)庫(kù)：

[root@bigdata2 ~]# docker tag centos7-jdk8-nginx:1.0 192.168.18.162:5000/centos7-jdk8-nginx:1.0 [root@bigdata2 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE 192.168.18.162:5000/centos7-jdk8-nginx 1.0 bcacd65e2a2e 2 minutes ago 2.18 GB[root@bigdata2 ~]# docker push 192.168.18.162:5000/centos7-jdk8-nginx:1.0 The push refers to a repository [192.168.18.162:5000/centos7-jdk8-nginx] f018e9c38a66: Pushed 2a47dcd341ef: Pushed c5dea3bc729a: Pushed bcc97fbfc9e1: Pushed 1.0: digest: sha256:d907ff2f8eb590209700c01ce85c78d0bc778a4238539d747e4667d68cb52102 size: 1163 [root@bigdata2 ~]#

然后進(jìn)入docker鏡像倉(cāng)庫(kù)所在位置：

[root@youx-pub registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["centos7-jdk8-nginx","nginx"]} [root@youx-pub registry]# curl http://192.168.18.162:5000/v2/centos7-jdk8-nginx/tags/list {"name":"centos7-jdk8-nginx","tags":["1.0"]} [root@youx-pub registry]#

二、本地鏡像如何刪除，正常是不提供刪除功能的，所以使用第三方的插件來(lái)進(jìn)行刪除

插件github上的位置： https://github.com/burnettk/delete-docker-registry-image

1、下載資源

[root@master registry]# curl https://raw.githubusercontent.com/burnettk/delete-docker-registry-image/master/delete_docker_registry_image.py | sudo tee /usr/local/bin/delete_docker_registry_image >/dev/nullsudo chmod a+x /usr/local/bin/delete_docker_registry_image

2、 設(shè)置相關(guān)環(huán)節(jié)變量：

查找REGISTRY_DATA_DIR，命令： [root@youx-pub registry]# find / -name registry [root@youx-pub registry]# find / -name registry /var/lib/docker/overlay2/d72320cd67b42f7ae66342cc6dedab7abe5e89106de8c4919ec8c5a6e5940b09/diff/var/lib/ucf/registry /var/lib/docker/overlay2/92211417089f7be8239def550e1e89ce3f0e50ac57f2c36ba723ca312ea06ae3/diff/bin/registry /var/lib/docker/overlay2/c1716aea0b380eb94ead9aa02552769acd4c3dac8e6dab735997f1709ce79a33/diff/etc/docker/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/diff/var/lib/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/merged/bin/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/merged/etc/docker/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/merged/var/lib/registry /var/lib/docker/volumes/1522d54c954c755250cb71686cacd9714cd3d0f0c706ec18c1e490c7881fe713/_data/docker/registry /opt/data/registry /registry [root@youx-pub registry]# 發(fā)現(xiàn) [root@youx-pub repositories]# pwd /var/lib/docker/volumes/1522d54c954c755250cb71686cacd9714cd3d0f0c706ec18c1e490c7881fe713/_data/docker/registry/v2/repositories [root@youx-pub repositories]# ls centos7-jdk8-nginx nginx [root@youx-pub repositories]#所以設(shè)置鏡像倉(cāng)庫(kù)的位置為： [root@master registry]# export REGISTRY_DATA_DIR=/var/lib/docker/volumes/1522d54c954c755250cb71686cacd9714cd3d0f0c706ec18c1e490c7881fe713/_data/docker/registry/v2

地址就是咱們掛載地址：

看一下相關(guān)標(biāo)簽：

[root@youx-pub registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["youx-centos7.5.1804","youx-centos7.5.1804-v1.0"]} [root@youx-pub registry]# curl http://192.168.18.162:5000/v2/youx-centos7.5.1804-v1.0/tags/list {"name":"youx-centos7.5.1804-v1.0","tags":["latest"]} [root@youx-pub registry]#

可以之后我們直接刪除：

[root@master registry]# delete_docker_registry_image --image youx-centos7.5.1804-v1.0:latest

INFO [2017-04-08 11:39:39,793] Deleting /registry/docker/registry/v2/repositories/nginx/_manifests/tags/v1
咱們?cè)倏匆幌卤镜貍}(cāng)庫(kù)的鏡像有幾個(gè)：

[root@master registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["youx-centos7.5.1804"]}

總結(jié)

以上是生活随笔為你收集整理的Docker私有仓库管理，删除本地仓库中的镜像的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

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