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  • 容器技术之Docker私有镜像仓库docker-distribution(7)

　　测试：下载docker-registry.io:5000/centos:7 看看是否还能下载？

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[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：以上提示告诉我们没有对应镜像的元数据信息；说明我们私有仓库没有对应镜像；以上方法适合精准删除某个镜像的某个版本，如果是删除一个仓库，直接删除 /var/lib/registry/docker/registry/v2/repositories/下对应仓库的目录，然后在用registry命令做垃圾回收；如下

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[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 ~]#

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