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docker 手动清理私有仓库的方法
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1.关于删除私有仓库的镜像，官网说明如下：
官网上注明可以通过name和digest删除image。name我们是知道的。我们只要获取digest就可以了！
查看所有镜像：
查看指定镜像：
2.registry启动依赖config.yml配置文件：在默认文件的storage区域中添加delete_enable_ture配置项（默认不添加）。也可以在启动时候指定-e添加。允许删除镜像：
下图是仓库磁盘使用情况：
3.获取某个镜像（如api-service服务）的digest(需要进入私有仓库容器，参考上一步)(没有清理的仓库，历史镜像有很多)：
4.删除镜像（接上一步）（用awk拼接出删除镜像的URL，然后批量执行）：
/var/lib/registry/docker/registry/v2 # ls -l repositories/api-service/_manifests/tags/0.0.1-SNAPSHOT/index/sha256/|grep -v "total 0"|awk '{print"curl -I -X DELETE https://sxxh-docker001.lo:5000/v2/api-service/manifests/sha256:"$9}'
curl -I -X DELETE https://sxxh-docker001.lo:5000/v2/api-service/manifests/sha256:001b7aac44f7879861eaa310375d339ae28801e8c3784ab229a04880789b3030
curl -I -X DELETE https://sxxh-docker001.lo:5000/v2/api-service/manifests/sha256:008e0311afc9842aa5968c309fade709f84f19e1e1b4f740679fbc2c0f07a422
curl -I -X DELETE https://sxxh-docker001.lo:5000/v2/api-service/manifests/sha256:04b41e1d6af713ebc13f219c39ba8e9c6c10896e7f80ce33301ee58152019aa7
curl -I -X DELETE https://sxxh-docker001.lo:5000/v2/api-service/manifests/sha256:04b6e9563f6b2f0acd337c2c2baf1a068eaadaf0dcfae77a1779ee8ed47da3d4
curl -I -X DELETE https://sxxh-docker001.lo:5000/v2/api-service/manifests/sha256:04efcac51201b2d5d2fda9fbac5e4865662495bbe7ac10d3056d0102a4cfa78a
curl -I -X DELETE https://sxxh-docker001.lo:5000/v2/api-service/manifests/sha256:06c019b03712670db4943a20a4b765de0d99002193c4160550ceca64d6333c72
curl -I -X DELETE https://scxxh-docker001.lo:5000/v2/api-service/manifests/sha256:085bca22b063f7ac0615f6c6154f960da35d4ceb5236f74e741271f3288d73a7
如上图，删除成功！
5.上面步骤只是删除了image的元数据信息（索引）。现在进入registry中进行垃圾回收命令如下：
registry garbage-collect /etc/docker/registry/config.yml
删除结果如下（部分）：
6.其他：获取digest也可以使用其他方法（但是如果历史镜像很多，显示貌似有问题，没仔细研究）。如下：
[root@sxxh-docker002 ~]# curl https://sxxh-docker001.lo:5000/v2/web-service/manifests/0.0.1-SNAPSHOT
{
"schemaVersion": ,
"name": "web-service",
"tag": "0.0.1-SNAPSHOT",
"architecture": "amd64",
"fsLayers": [
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:95edc035592e218bf92a7d08a04f0c7d587f5a14385a0d5f6f62e806fa7693a2"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:054d5672a4a8d76a4f37dbd922f73e5a93a9799af8868795dd427af43d2e9827"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:0a2b7222259b98cf41d67ce95433b5410e85ff8492c5c47254b60a0ca56a9271"
},
{
"blobSum": "sha256:81cf5426393a4ac116dac26d8e0f95ea3ba85afcc09bc6eafdbd2efc598aa180"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:813b623203785421e2ad013759851cd6069d7f88dfc0211a091aad6b51ea465b"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:c7a02d193df75b11859dfcf15697ec0821e6a0f39d9dec6c9c4477955554d0db"
},
{
"blobSum": "sha256:624ba6156166d75b89cefff243adfa3d60384629102ab210b7a049c0464a2aa7"
},
{
"blobSum": "sha256:3318dd58ae6084d70d299efb50bcdf63e861f2dc3d787e03a751581e606442d9"
},
{
"blobSum": "sha256:8d9ed335b7dbe095ecfbbfe0857d07971283db0119f7a4aa490f9cbe06187335"
},
{
"blobSum": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"
},
{
"blobSum": "sha256:e12c678537aee9a1a1be8197da115e7c4d01f2652344f492a50ca8def9993d1e"
}
],
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{
"header": {
"jwk": {
"crv": "P-256",
"kid": "K5CO:ZZ5X:DMFZ:MTEY:62K2:AHLT:GCMH:JHFI:4QVC:PHUT:BC7Q:HFM2",
"kty": "EC",
"x": "pnKfVj7NRAQwfowPYvaFKrAHgCYdbHuzuH7xxSpQ2Ds",
"y": "fwTbqPdjEXNsC4L1XR7VoQ2o0Xhznn3562lOdFF_aeo"
},
"alg": "ES256"
},
"signature": "XDlym6XfYzkaRryxti-DiGykWFTXSo02VRy5Fa67a4R7dvgYX2OXVWfr3R8oxiUFiWP8N4Jz8nEHynySO0b3QA",
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}
]
}
