配置文件挂载到本地的宿主机了
docker run -d -p 6000:5000 --restart=always --name registry -v `pwd`/config.yml:/etc/docker/registry/config.yml registry:2
修改过配置文件
查看仓库中的镜像信息
curl -X GET http://127.0.0.1:6000/v2/_catalog
{"repositories":["myfirstimage","myfirstimage_2","myfirstimage_3"]}
获取digest值
curl -I -X GET http://127.0.0.1:6000/v2/myfirstimage/manifests/latest
HTTP/1.1 200 OK
Content-Length: 5559
Content-Type: application/vnd.docker.distribution.manifest.v1+prettyjws
Docker-Content-Digest: sha256:3a07b4e06c73b2e3924008270c7f3c3c6e3f70d4dbb814ad8bff2697123ca33c
Docker-Distribution-Api-Version: registry/2.0
Etag: "sha256:3a07b4e06c73b2e3924008270c7f3c3c6e3f70d4dbb814ad8bff2697123ca33c"
X-Content-Type-Options: nosniff
Date: Sun, 31 Jul 2016 11:09:22 GMT
删除测试
curl -X DELETE http://127.0.0.1:6000/v2/myfirstimage/manifests/sha256:3a07b4e06c73b2e3924008270c7f3c3c6e3f70d4dbb814ad8bff2697123ca33c
{"errors":[{"code":"MANIFEST_UNKNOWN","message":"manifest unknown"}]}
删除失败,这是为咋的
问题出在了取 digest
的那一步。在 registry 2.3
及其以后的版本,为了防止误删除,在取 digest
的时候,必须提供一个特殊的头:
Accept: application/vnd.docker.distribution.manifest.v2+json
否则会返回一个错误的 digest
。因此,取 digest
的语句应该用下面的形式:
curl --header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
-I \
-X HEAD http://127.0.0.1:6000/v2/myfirstimage/manifests/latest
这样取到的 digest
才是正确的。
参考官方文档:https://docs.docker.com/regis...