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在前邊的博客中我們說到docker的架構(gòu)由docker客戶端、服務(wù)端以及倉庫組成；docker倉庫就是用來存放鏡像的地方；其實docker registry我們理解為存放docker鏡像倉庫的倉庫比較準(zhǔn)確吧；因為docker的鏡像倉庫通常是把同一類的鏡像用不同的版本來區(qū)別，而registry則是用來存放這些倉庫的倉庫；默認安裝docker都是從dockerhub鏡像倉庫下載鏡像；其實在生產(chǎn)環(huán)境中，我們很少去公有倉庫上下載鏡像，原因之一是公有倉庫中的鏡像在生產(chǎn)環(huán)境中使用，有些不適配，通常我們是去公有倉庫下載基礎(chǔ)鏡像，然后基于基礎(chǔ)鏡像構(gòu)建適合自己生產(chǎn)環(huán)境中的鏡像；其次公有倉庫鏡像有很多都不是安全的鏡像，這么說吧，我們不確定自己下載的鏡像是否有后門，是否有挖礦代碼，所以基于種種因素，我們還是有必要搭建自己私有的鏡像倉庫；今天我們就來聊一聊docker的私有鏡像倉庫的搭建； 1、查看docker-distribution包簡介 [root@docker_registry ~]# yum info docker-distribution Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com Available Packages Name : docker-distribution Arch : x86_64 Version : 2.6.2 Release : 2.git48294d9.el7 Size : 3.5 M Repo : extras/7/x86_64 Summary : Docker toolset to pack, ship, store, and deliver content URL : https://github.com/docker/distribution License : ASL 2.0 Description : Docker toolset to pack, ship, store, and deliver content [root@docker_registry ~]# 提示：docker-distribution這個包就是提供簡單倉庫服務(wù)軟件實現(xiàn)； 2、安裝docker-distribution [root@docker_registry ~]# yum install -y docker-distribution Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com Resolving Dependencies There are unfinished transactions remaining. You might consider running yum-complete-transaction, or "yum-complete-transaction --cleanup-only" and "yum history redo last", first to finish them. If those don't work you'll have to try removing/installing packages by hand (maybe package-cleanup can help). The program yum-complete-transaction is found in the yum-utils package. --> Running transaction check ---> Package docker-distribution.x86_64 0:2.6.2-2.git48294d9.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved =================================================================================================================== Package Arch Version Repository Size =================================================================================================================== Installing: docker-distribution x86_64 2.6.2-2.git48294d9.el7 extras 3.5 M Transaction Summary =================================================================================================================== Install 1 Package Total download size: 3.5 M Installed size: 12 M Downloading packages: docker-distribution-2.6.2-2.git48294d9.el7.x86_64.rpm | 3.5 MB 00:00:03 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : docker-distribution-2.6.2-2.git48294d9.el7.x86_64 1/1 Verifying : docker-distribution-2.6.2-2.git48294d9.el7.x86_64 1/1 Installed: docker-distribution.x86_64 0:2.6.2-2.git48294d9.el7 Complete! [root@docker_registry ~]# 3、查看docker-distribution安裝了那些文件 [root@docker_registry ~]# rpm -ql docker-distribution /etc/docker-distribution/registry/config.yml /usr/bin/registry /usr/lib/systemd/system/docker-distribution.service /usr/share/doc/docker-distribution-2.6.2 /usr/share/doc/docker-distribution-2.6.2/AUTHORS /usr/share/doc/docker-distribution-2.6.2/CONTRIBUTING.md /usr/share/doc/docker-distribution-2.6.2/LICENSE /usr/share/doc/docker-distribution-2.6.2/MAINTAINERS /usr/share/doc/docker-distribution-2.6.2/README.md /var/lib/registry [root@docker_registry ~]# 提示：/etc/docker-distribution/registry/config.yml這個文件用于配置registry的配置文件；/usr/bin/registry是二進制應(yīng)用程序；/usr/lib/systemd/system/docker-distribution.service 這個文件是docker-distribution的unit file；/var/lib/registry這個目錄用于存放我們上傳到registry上的鏡像存放地； 4、查看配置文件 [root@docker_registry ~]# cat /etc/docker-distribution/registry/config.yml
version: 0.1
log:
fields:
service: registry
storage:
cache:
layerinfo: inmemory
filesystem:
rootdirectory: /var/lib/registry
http:
addr: :5000
[root@docker_registry ~]#
提示：這個配置文件是一個yml語法的配置文件，從上面的信息可以看到，默認情況docker-distribution監(jiān)聽在tcp的5000端口；存放鏡像的目錄是/var/lib/registry/目錄下； 5、啟動docker-distribution [root@docker_registry ~]# systemctl start docker-distribution [root@docker_registry ~]# ss -tnl State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 *:22 *:* LISTEN 0 100 127.0.0.1:25 *:* LISTEN 0 128 :::22 :::* LISTEN 0 100 ::1:25 :::* LISTEN 0 128 :::5000 :::* [root@docker_registry ~]# 提示：可以看到5000端口已經(jīng)處于監(jiān)聽狀態(tài)了；到此docker-distribution就啟動起來了；這個倉庫服務(wù)很簡陋，沒有用戶認證功能，默認是基于http通信而非https，所以從某些角度講，不是一個安全的倉庫；所以一般不見在互聯(lián)網(wǎng)上使用，在自己的內(nèi)外環(huán)境中可以使用； 這里補充一點，docker的鏡像通常是 registry地址加repository名稱加版本這三部分組成，registry可以是域名，可以是ip地址加端口，也可以說域名加端口，默認https是443端口，http是80端口，如果不寫端口默認是443而非80（原因是docker默認不支持從http協(xié)議的倉庫下載/上傳鏡像）；例如 /coreos/flannel:v0.12.0-s390x 從這個鏡像名我們就可以知道registry是https://;repository名稱為coreos/flannel 版本是v0.12.0-s390x; 示例：下載第三方倉庫鏡像到本地
提示：可以看到下載下來的鏡像名稱就是我們剛才說的registry+repository+版本；從上面的信息我們可以總結(jié)一點，docker鏡像的名稱（標(biāo)簽）反應(yīng)了該鏡像來自哪個registry的那個倉庫；所以我們要下載私有鏡像倉庫中的鏡像就需要把加上私有registry的名稱或地址+repository+版本來下載私有鏡像倉庫中的鏡像；同理上傳鏡像也需要寫明上傳到那個registry中的那個repository中去； 示例：上傳本地鏡像到私有倉庫
提示：要把本地倉庫鏡像傳到私有倉庫中去，首先我們要把本地鏡像打一個新的標(biāo)簽，按照我們剛才上面說的邏輯，然后在上傳新打到標(biāo)簽的鏡像到私有倉庫就可以了；從上面的信息我們看到當(dāng)我們打好標(biāo)簽后，上傳鏡像時報錯了，提示我們倉庫不是https的；默認情況docker不支持http明文上傳/下載鏡像；如果我們非要用http上傳下載鏡像我們需要在配置文件中明確的告訴docker非安全倉庫地址； 配置docker支持私有倉庫上傳下載鏡像 [root@docker_registry ~]# cat /etc/docker/daemon.json
{
"registry-mirrors": ["https://registry.","https://cyr1uljt.mirror."],
"insecure-registries": ["192.168.0.99:5000"]
}
[root@docker_registry ~]# systemctl daemon-reload
[root@docker_registry ~]# systemctl restart docker
提示：我們通過在配置文件中配置insecure-registries來告訴docker192.168.0.99：5000這個registry是不安全的，但是我們信任這個倉庫，大概就是這個意思嘛；通常我們是寫主機名然后配合hosts文件來解析的方式來對registry解析；從而把鏡像命名為主機名+倉庫名+版本的形式；如下所示；這里還需要注意一點insecure-registries后面的列表中的倉庫如果有域名，域名不能有下劃線（“_”），否則重啟docker會起不來； [root@docker_registry ~]# cat /etc/docker/daemon.json
{
"registry-mirrors": ["https://registry.","https://cyr1uljt.mirror."],
"insecure-registries": ["192.168.0.99:5000",":5000"]
}
[root@docker_registry ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.0.99 registry
192.168.0.22 docker-node01.io node01
192.168.0.23 docker-node02.io node02
[root@docker_registry ~]# systemctl restart docker
[root@docker_registry ~]# docker info
Client:
Debug Mode: false
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 1
Server Version: 19.03.11
Storage Driver: overlay2
Backing Filesystem: xfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
init version: fec3683
Security Options:
seccomp
Profile: default
Kernel Version: 3.10.0-693.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 1.785GiB
Name: docker_registry
ID: R34V:IG2F:23I6:6WG6:FFQ4:75SV:3UKZ:RFH7:DGCO:QS7V:CS7K:NSH6
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index./v1/
Labels:
Experimental: false
Insecure Registries:
192.168.0.99:5000
:5000
127.0.0.0/8
Registry Mirrors:
https://registry./
https://cyr1uljt.mirror./
Live Restore Enabled: false
[root@docker_registry ~]#
提示：重啟docker后，如果在docker info 中能夠看到我們配置的內(nèi)容說明配置生效了；現(xiàn)在我們再來傳我們新打的標(biāo)簽的鏡像，看看是否能夠傳到我們的私有倉庫呢？ [root@docker_registry ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE :5000/centos 7 b5b4d78bc90c 4 weeks ago 203MB centos 7 b5b4d78bc90c 4 weeks ago 203MB 192.168.0.99:5000/flannel v0.12.0-s390x 57eade024bfb 2 months ago 56.9MB /coreos/flannel v0.12.0-s390x 57eade024bfb 2 months ago 56.9MB [root@docker_registry ~]# docker push 192.168.0.99:5000/flannel:v0.12.0-s390x The push refers to repository [192.168.0.99:5000/flannel] b67de7789e55: Pushed 4c4bfa1b47e6: Pushed 3b7ae8a9c323: Pushed fbd88a276dca: Pushed 271ca11ef489: Pushed 1f106b41b4d6: Pushed v0.12.0-s390x: digest: sha256:3ce5b8d40451787e1166bf6b207c7834c13f7a0712b46ddbfb591d8b5906bfa6 size: 1579 [root@docker_registry ~]# docker push :5000/centos:7 The push refers to repository [:5000/centos] edf3aa290fb3: Pushed 7: digest: sha256:c2f1d5a9c0a81350fa0ad7e1eee99e379d75fe53823d44b5469eb2eb6092c941 size: 529 [root@docker_registry ~]# 提示：可以看到我們上傳的兩個鏡像都完成了上傳沒有報錯，接下來我們?nèi)?var/lib/registry/這個目錄，看看是否有這兩個鏡像相關(guān)目錄？ [root@docker_registry ~]# tree /var/lib/registry/
/var/lib/registry/
└── docker
└── registry
└── v2
├── blobs
│ └── sha256
│ ├── 13
│ │ └── 13b80a37370b57f558a2e06092c39224e5d1ebac50e48df0afdeb43cf2303e60
│ │ └── data
│ ├── 17
│ │ └── 176bad61a3a435da03ec603d2bd8f7a69286d92f21f447b17f21f0bc4e085bde
│ │ └── data
│ ├── 1b
│ │ └── 1b56fbc8a8e10830867455c0794a70f5469c154cdc013554daf501aeda3f30fe
│ │ └── data
│ ├── 26
│ │ └── 266247e2e603e1c840f97cb4d97a08b9184344e9802966cb42c93d21c407839f
│ │ └── data
│ ├── 3c
│ │ └── 3ce5b8d40451787e1166bf6b207c7834c13f7a0712b46ddbfb591d8b5906bfa6
│ │ └── data
│ ├── 42
│ │ └── 42d8e66fa893de4beb5d136b787cf182b24b7f4972c4212b9493b661ad1d7e85
│ │ └── data
│ ├── 52
│ │ └── 524b0c1e57f8ee5fee01a1decba2f301c324a6513ca3551021264e3aa7341ebc
│ │ └── data
│ ├── 57
│ │ └── 57eade024bfbd48c45ef2bad996c4d6a0fa41b692247294745265af738066813
│ │ └── data
│ ├── 85
│ │ └── 85ecb68de4693bb4093d923f6d1062766e4fa7cbb3bf456a2bc19dd3e6c5e6c6
│ │ └── data
│ ├── b5
│ │ └── b5b4d78bc90ccd15806443fb881e35b5ddba924e2f475c1071a38a3094c3081d
│ │ └── data
│ └── c2
│ └── c2f1d5a9c0a81350fa0ad7e1eee99e379d75fe53823d44b5469eb2eb6092c941
│ └── data
└── repositories
├── centos
│ ├── _layers
│ │ └── sha256
│ │ ├── 524b0c1e57f8ee5fee01a1decba2f301c324a6513ca3551021264e3aa7341ebc
│ │ │ └── link
│ │ └── b5b4d78bc90ccd15806443fb881e35b5ddba924e2f475c1071a38a3094c3081d
│ │ └── link
│ ├── _manifests
│ │ ├── revisions
│ │ │ └── sha256
│ │ │ └── c2f1d5a9c0a81350fa0ad7e1eee99e379d75fe53823d44b5469eb2eb6092c941
│ │ │ └── link
│ │ └── tags
│ │ └── 7
│ │ ├── current
│ │ │ └── link
│ │ └── index
│ │ └── sha256
│ │ └── c2f1d5a9c0a81350fa0ad7e1eee99e379d75fe53823d44b5469eb2eb6092c941
│ │ └── link
│ └── _uploads
└── flannel
├── _layers
│ └── sha256
│ ├── 13b80a37370b57f558a2e06092c39224e5d1ebac50e48df0afdeb43cf2303e60
│ │ └── link
│ ├── 176bad61a3a435da03ec603d2bd8f7a69286d92f21f447b17f21f0bc4e085bde
│ │ └── link
│ ├── 1b56fbc8a8e10830867455c0794a70f5469c154cdc013554daf501aeda3f30fe
│ │ └── link
│ ├── 266247e2e603e1c840f97cb4d97a08b9184344e9802966cb42c93d21c407839f
│ │ └── link
│ ├── 42d8e66fa893de4beb5d136b787cf182b24b7f4972c4212b9493b661ad1d7e85
│ │ └── link
│ ├── 57eade024bfbd48c45ef2bad996c4d6a0fa41b692247294745265af738066813
│ │ └── link
│ └── 85ecb68de4693bb4093d923f6d1062766e4fa7cbb3bf456a2bc19dd3e6c5e6c6
│ └── link
├── _manifests
│ ├── revisions
│ │ └── sha256
│ │ └── 3ce5b8d40451787e1166bf6b207c7834c13f7a0712b46ddbfb591d8b5906bfa6
│ │ └── link
│ └── tags
│ └── v0.12.0-s390x
│ ├── current
│ │ └── link
│ └── index
│ └── sha256
│ └── 3ce5b8d40451787e1166bf6b207c7834c13f7a0712b46ddbfb591d8b5906bfa6
│ └── link
└── _uploads
65 directories, 26 files
[root@docker_registry ~]#
提示：可以看到對應(yīng)目錄下有兩個子目錄就是以我們上傳的鏡像名稱命名的； 示例：查看私有倉庫中存在的進行列表 [root@docker_registry ~]# curl :5000/v2/_catalog
{"repositories":["centos","flannel"]}
[root@docker_registry ~]#
示例：下載私有倉庫中的鏡像到本地 [root@docker_node01 ~]# ip a l ens33
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:22:36:7f brd ff:ff:ff:ff:ff:ff
inet 192.168.0.22/24 brd 192.168.0.255 scope global ens33
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe22:367f/64 scope link
valid_lft forever preferred_lft forever
[root@docker_node01 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
linux1874/myimg v0.1 e408b1c6e04f 2 weeks ago 1.22MB
wordpress latest c3fa1c8546fb 5 weeks ago 540MB
mysql 5.7 f965319e89de 5 weeks ago 448MB
alpine v3 f70734b6a266 6 weeks ago 5.61MB
nginx 1.14-alpine 8a2fb25a19f5 14 months ago 16MB
httpd 2.4.37-alpine dfd436f9a5d8 17 months ago 91.8MB
[root@docker_node01 ~]# docker pull 192.168.0.99:5000/flannel:v0.12.0-s390x
v0.12.0-s390x: Pulling from flannel
176bad61a3a4: Pull complete
13b80a37370b: Pull complete
42d8e66fa893: Pull complete
266247e2e603: Pull complete
1b56fbc8a8e1: Pull complete
85ecb68de469: Pull complete
Digest: sha256:3ce5b8d40451787e1166bf6b207c7834c13f7a0712b46ddbfb591d8b5906bfa6
Status: Downloaded newer image for 192.168.0.99:5000/flannel:v0.12.0-s390x
192.168.0.99:5000/flannel:v0.12.0-s390x
[root@docker_node01 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
linux1874/myimg v0.1 e408b1c6e04f 2 weeks ago 1.22MB
wordpress latest c3fa1c8546fb 5 weeks ago 540MB
mysql 5.7 f965319e89de 5 weeks ago 448MB
alpine v3 f70734b6a266 6 weeks ago 5.61MB
192.168.0.99:5000/flannel v0.12.0-s390x 57eade024bfb 2 months ago 56.9MB
nginx 1.14-alpine 8a2fb25a19f5 14 months ago 16MB
httpd 2.4.37-alpine dfd436f9a5d8 17 months ago 91.8MB
[root@docker_node01 ~]#
提示：下載私有倉庫中的鏡像，默認情況docker也是不支持直接訪問http協(xié)議的倉庫，需要我們手動去配置insecure-registries，然后重啟docker才可以； 示例：刪除私有倉庫中的鏡像 1、獲取對應(yīng)鏡像的sha256的值 curl --header "Accept:application/vnd.docker.distribution.manifest.v2+json" -I -X GET http://<registry addr>/v2/<image name>/manifests/<image tag>
2、刪除對應(yīng)鏡像版本元數(shù)據(jù) curl -I -X DELETE http://<registry addr>/v2/<image name>/manifests/<image digest>
提示：如果響應(yīng)405方法不被允許；我們需要修改私有倉庫的配置文件，將其配置為允許刪除；如下 [root@docker_registry ~]# cat /etc/docker-distribution/registry/config.yml
version: 0.1
log:
fields:
service: registry
storage:
delete:
enabled: true
cache:
layerinfo: inmemory
filesystem:
rootdirectory: /var/lib/registry
http:
addr: :5000
[root@docker_registry ~]# systemctl restart docker-distribution
[root@docker_registry ~]# curl -IX DELETE http://:5000/v2/centos/manifests/sha256:c2f1d5a9c0a81350fa0ad7e1eee99e379d75fe53823d44b5469eb2eb6092c941
HTTP/1.1 202 Accepted
Docker-Distribution-Api-Version: registry/2.0
Date: Sat, 06 Jun 2020 19:55:52 GMT
Content-Length: 0
Content-Type: text/plain; charset=utf-8
[root@docker_registry ~]#
提示：degest值包含"sha256:" 3、垃圾回收清理 [root@docker_registry ~]# registry garbage-collect /etc/docker-distribution/registry/config.yml centos flannel flannel: marking manifest sha256:3ce5b8d40451787e1166bf6b207c7834c13f7a0712b46ddbfb591d8b5906bfa6 flannel: marking blob sha256:57eade024bfbd48c45ef2bad996c4d6a0fa41b692247294745265af738066813 flannel: marking blob sha256:176bad61a3a435da03ec603d2bd8f7a69286d92f21f447b17f21f0bc4e085bde flannel: marking blob sha256:13b80a37370b57f558a2e06092c39224e5d1ebac50e48df0afdeb43cf2303e60 flannel: marking blob sha256:42d8e66fa893de4beb5d136b787cf182b24b7f4972c4212b9493b661ad1d7e85 flannel: marking blob sha256:266247e2e603e1c840f97cb4d97a08b9184344e9802966cb42c93d21c407839f flannel: marking blob sha256:1b56fbc8a8e10830867455c0794a70f5469c154cdc013554daf501aeda3f30fe flannel: marking blob sha256:85ecb68de4693bb4093d923f6d1062766e4fa7cbb3bf456a2bc19dd3e6c5e6c6 myweb myweb: marking manifest sha256:aaf04cf567a776e36eb3b0bafaec17ed8d9e0a743bdb897dca13f251250ae493 myweb: marking blob sha256:4f406abeaab7f848178867409142090d1a551b22b968be6a6dae733c8403738e myweb: marking blob sha256:524b0c1e57f8ee5fee01a1decba2f301c324a6513ca3551021264e3aa7341ebc myweb: marking blob sha256:c941076f9075280c41b502283f37ab8bafef3a66f4a7ba299838dce07641a48d test test: marking manifest sha256:5ecad23ab8a52e55f93968f708d325261032dd613287aec92e7cf8ddd6426635 test: marking blob sha256:370e3a843c3cb12700301e3f87f929939146cd8b676260bedcd83aaa7fcc2939 test: marking blob sha256:524b0c1e57f8ee5fee01a1decba2f301c324a6513ca3551021264e3aa7341ebc test: marking manifest sha256:da8b53210bf1f4dc4873bbd5589abad616663cda45205ae3a4fffb0729d2730d test: marking blob sha256:461f6ceabc885e2e90b5f9ee82aefc9a30a39510c40e7cd8fb7436a4d340fe1d test: marking blob sha256:524b0c1e57f8ee5fee01a1decba2f301c324a6513ca3551021264e3aa7341ebc test: marking blob sha256:035e026f1d6b0acba3413ba616dcbabf75d20e945778c52716e601255452b7b7 17 blobs marked, 2 blobs eligible for deletion blob eligible for deletion: sha256:b5b4d78bc90ccd15806443fb881e35b5ddba924e2f475c1071a38a3094c3081d INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/b5/b5b4d78bc90ccd15806443fb881e35b5ddba924e2f475c1071a38a3094c3081d go.version=go1.9.4 instance.id=b3029d7f-99e8-4941-8c87-989514b584ea blob eligible for deletion: sha256:c2f1d5a9c0a81350fa0ad7e1eee99e379d75fe53823d44b5469eb2eb6092c941 INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/c2/c2f1d5a9c0a81350fa0ad7e1eee99e379d75fe53823d44b5469eb2eb6092c941 go.version=go1.9.4 instance.id=b3029d7f-99e8-4941-8c87-989514b584ea [root@docker_registry ~]# 測試：下載:5000/centos:7 看看是否還能下載？ [root@docker_node01 ~]# docker pull 192.168.0.99:5000/centos:7 Error response from daemon: manifest for 192.168.0.99:5000/centos:7 not found: manifest unknown: manifest unknown [root@docker_node01 ~]# 提示：以上提示告訴我們沒有對應(yīng)鏡像的元數(shù)據(jù)信息；說明我們私有倉庫沒有對應(yīng)鏡像；以上方法適合精準(zhǔn)刪除某個鏡像的某個版本，如果是刪除一個倉庫，直接刪除 /var/lib/registry/docker/registry/v2/repositories/下對應(yīng)倉庫的目錄，然后在用registry命令做垃圾回收；如下 [root@docker_registry ~]# ll /var/lib/registry/docker/registry/v2/repositories/ total 0 drwxr-xr-x 5 root root 55 Jun 6 14:16 centos drwxr-xr-x 5 root root 55 Jun 6 14:15 flannel drwxr-xr-x 5 root root 55 Jun 6 15:25 myweb drwxr-xr-x 5 root root 55 Jun 6 15:24 test [root@docker_registry ~]# rm -rf /var/lib/registry/docker/registry/v2/repositories/test [root@docker_registry ~]# rm -rf /var/lib/registry/docker/registry/v2/repositories/myweb [root@docker_registry ~]# ll /var/lib/registry/docker/registry/v2/repositories/ total 0 drwxr-xr-x 5 root root 55 Jun 6 14:16 centos drwxr-xr-x 5 root root 55 Jun 6 14:15 flannel [root@docker_registry ~]# registry garbage-collect /etc/docker-distribution/registry/config.yml centos flannel flannel: marking manifest sha256:3ce5b8d40451787e1166bf6b207c7834c13f7a0712b46ddbfb591d8b5906bfa6 flannel: marking blob sha256:57eade024bfbd48c45ef2bad996c4d6a0fa41b692247294745265af738066813 flannel: marking blob sha256:176bad61a3a435da03ec603d2bd8f7a69286d92f21f447b17f21f0bc4e085bde flannel: marking blob sha256:13b80a37370b57f558a2e06092c39224e5d1ebac50e48df0afdeb43cf2303e60 flannel: marking blob sha256:42d8e66fa893de4beb5d136b787cf182b24b7f4972c4212b9493b661ad1d7e85 flannel: marking blob sha256:266247e2e603e1c840f97cb4d97a08b9184344e9802966cb42c93d21c407839f flannel: marking blob sha256:1b56fbc8a8e10830867455c0794a70f5469c154cdc013554daf501aeda3f30fe flannel: marking blob sha256:85ecb68de4693bb4093d923f6d1062766e4fa7cbb3bf456a2bc19dd3e6c5e6c6 8 blobs marked, 9 blobs eligible for deletion blob eligible for deletion: sha256:370e3a843c3cb12700301e3f87f929939146cd8b676260bedcd83aaa7fcc2939 INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/37/370e3a843c3cb12700301e3f87f929939146cd8b676260bedcd83aaa7fcc2939 go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:524b0c1e57f8ee5fee01a1decba2f301c324a6513ca3551021264e3aa7341ebc INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/52/524b0c1e57f8ee5fee01a1decba2f301c324a6513ca3551021264e3aa7341ebc go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:5ecad23ab8a52e55f93968f708d325261032dd613287aec92e7cf8ddd6426635 INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/5e/5ecad23ab8a52e55f93968f708d325261032dd613287aec92e7cf8ddd6426635 go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:aaf04cf567a776e36eb3b0bafaec17ed8d9e0a743bdb897dca13f251250ae493 INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/aa/aaf04cf567a776e36eb3b0bafaec17ed8d9e0a743bdb897dca13f251250ae493 go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:035e026f1d6b0acba3413ba616dcbabf75d20e945778c52716e601255452b7b7 INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/03/035e026f1d6b0acba3413ba616dcbabf75d20e945778c52716e601255452b7b7 go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:461f6ceabc885e2e90b5f9ee82aefc9a30a39510c40e7cd8fb7436a4d340fe1d INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/46/461f6ceabc885e2e90b5f9ee82aefc9a30a39510c40e7cd8fb7436a4d340fe1d go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:4f406abeaab7f848178867409142090d1a551b22b968be6a6dae733c8403738e INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/4f/4f406abeaab7f848178867409142090d1a551b22b968be6a6dae733c8403738e go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:c941076f9075280c41b502283f37ab8bafef3a66f4a7ba299838dce07641a48d INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/c9/c941076f9075280c41b502283f37ab8bafef3a66f4a7ba299838dce07641a48d go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e blob eligible for deletion: sha256:da8b53210bf1f4dc4873bbd5589abad616663cda45205ae3a4fffb0729d2730d INFO[0000] Deleting blob: /docker/registry/v2/blobs/sha256/da/da8b53210bf1f4dc4873bbd5589abad616663cda45205ae3a4fffb0729d2730d go.version=go1.9.4 instance.id=1a15f1e7-194f-4a82-b79d-9f437d975f6e [root@docker_registry ~]# 提示：這種方式比較粗暴簡單，通常是一個倉庫里只有一個版本鏡像可以使用這種方式刪除，如果一個倉庫有多個版本，那么還是建議使用第一種方式； |
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