docker 手动清理私有仓库的方法

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"

      }

   ],

   "history": [

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      },

      {

         "v1Compatibility": "{\"id\":\"3c057fbea6207ba9a2b823dd17f145f2f2fcf6db1472062486e6701b1bb4cc6c\",\"parent\":\"0331530cc61a4109413744b40320a54b814d64b00e94e1d30d8d7dc88a4efecc\",\"created\":\"2017-10-17T07:04:43.346160813Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c #(nop)  ENV TZ=Asia/Shanghai\"]},\"throwaway\":true}"

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      },

      {

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      },

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      },

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         "v1Compatibility": "{\"id\":\"1ba36725ad52df8df858da07fc04e4b98cc03762f67911b1c4aea55cd2257604\",\"parent\":\"a46acdc5fd926ac28ff88efe97f57bc3e0d62174bff1d0ce43c3c3fd7acfdcf0\",\"created\":\"2017-01-17T00:51:50.391717354Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c #(nop)  ENV JAVA_DEBIAN_VERSION=8u111-b14-2~bpo8+1\"]},\"throwaway\":true}"

      },

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      },

      {

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      },

      {

         "v1Compatibility": "{\"id\":\"cae57b7d75ad8496a8822d6b5a6ad12f8aa41afedf8ac392ec7076e9bb4fbc2f\",\"parent\":\"460e9e88f2e3e275a94af3830c839674b2ca2af8140c1d46b1d60f7eb1ee00b5\",\"created\":\"2017-01-17T00:51:48.199853506Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c echo 'deb http://deb.debian.org/debian jessie-backports main' \\u003e /etc/apt/sources.list.d/jessie-backports.list\"]}}"

      },

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         "v1Compatibility": "{\"id\":\"460e9e88f2e3e275a94af3830c839674b2ca2af8140c1d46b1d60f7eb1ee00b5\",\"parent\":\"98c8b00e72a3fefb671ae6a7a07c1f1ccd313c198f47cf98c33119ba0ef07688\",\"created\":\"2017-01-17T00:49:51.939655817Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c apt-get update \\u0026\\u0026 apt-get install -y --no-install-recommends \\t\\tbzip2 \\t\\tunzip \\t\\txz-utils \\t\\u0026\\u0026 rm -rf /var/lib/apt/lists/*\"]}}"

      },

      {

         "v1Compatibility": "{\"id\":\"98c8b00e72a3fefb671ae6a7a07c1f1ccd313c198f47cf98c33119ba0ef07688\",\"parent\":\"571c55696ed384dac735d9bd3d21f35d9c275ef40bef26dac50c6a0e3b5a8dd9\",\"created\":\"2017-01-17T00:01:07.867997465Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c apt-get update \\u0026\\u0026 apt-get install -y --no-install-recommends \\t\\tbzr \\t\\tgit \\t\\tmercurial \\t\\topenssh-client \\t\\tsubversion \\t\\t\\t\\tprocps \\t\\u0026\\u0026 rm -rf /var/lib/apt/lists/*\"]}}"

      },

      {

         "v1Compatibility": "{\"id\":\"571c55696ed384dac735d9bd3d21f35d9c275ef40bef26dac50c6a0e3b5a8dd9\",\"parent\":\"dd971d935f0529013f3bf48999e9cebe16e11f5318538fea15d61dd41326600a\",\"created\":\"2017-01-17T00:00:45.363077258Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c apt-get update \\u0026\\u0026 apt-get install -y --no-install-recommends \\t\\tca-certificates \\t\\tcurl \\t\\twget \\t\\u0026\\u0026 rm -rf /var/lib/apt/lists/*\"]}}"

      },

      {

         "v1Compatibility": "{\"id\":\"dd971d935f0529013f3bf48999e9cebe16e11f5318538fea15d61dd41326600a\",\"parent\":\"9f872f437c9c25c1364b6527e1570d990d5b935fe96f3aebf6acfcd5aa889500\",\"created\":\"2017-01-16T20:35:16.587175871Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c #(nop)  CMD [\\\"/bin/bash\\\"]\"]},\"throwaway\":true}"

      },

      {

         "v1Compatibility": "{\"id\":\"9f872f437c9c25c1364b6527e1570d990d5b935fe96f3aebf6acfcd5aa889500\",\"created\":\"2017-01-16T20:35:09.371844927Z\",\"container_config\":{\"Cmd\":[\"/bin/sh -c #(nop) ADD file:89ecb642d662ee7edbb868340551106d51336c7e589fdaca4111725ec64da957 in / \"]}}"

      }

   ],

   "signatures": [

      {

         "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",

         "protected": "eyJmb3JtYXRMZW5ndGgiOjEyMjMyLCJmb3JtYXRUYWlsIjoiQ24wIiwidGltZSI6IjIwMTgtMDQtMThUMTA6MTE6NDRaIn0"

      }

   ]

}

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