{"id":44565,"date":"2023-05-22T12:41:14","date_gmt":"2023-12-12T12:31:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/docker%e8%bd%bb%e9%87%8f%e5%8c%96-%e5%9c%a8%e5%a4%9a%e9%98%b6%e6%ae%b5%e6%9e%84%e5%bb%ba%e4%b8%ad%ef%bc%8c%e9%98%b6%e6%ae%b5%e9%97%b4%e7%9a%84copy%e6%9c%80%e5%a5%bd%e4%bd%bf%e7%94%a8%e7%bb%9d\/"},"modified":"2024-04-30T05:23:07","modified_gmt":"2024-04-29T21:23:07","slug":"docker%e8%bd%bb%e9%87%8f%e5%8c%96-%e5%9c%a8%e5%a4%9a%e9%98%b6%e6%ae%b5%e6%9e%84%e5%bb%ba%e4%b8%ad%ef%bc%8c%e9%98%b6%e6%ae%b5%e9%97%b4%e7%9a%84copy%e6%9c%80%e5%a5%bd%e4%bd%bf%e7%94%a8%e7%bb%9d","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/docker%e8%bd%bb%e9%87%8f%e5%8c%96-%e5%9c%a8%e5%a4%9a%e9%98%b6%e6%ae%b5%e6%9e%84%e5%bb%ba%e4%b8%ad%ef%bc%8c%e9%98%b6%e6%ae%b5%e9%97%b4%e7%9a%84copy%e6%9c%80%e5%a5%bd%e4%bd%bf%e7%94%a8%e7%bb%9d\/","title":{"rendered":"[Docker\u8f7b\u91cf\u5316] \u5728\u591a\u9636\u6bb5\u6784\u5efa\u4e2d\uff0c\u9636\u6bb5\u95f4\u7684COPY\u6700\u597d\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84"},"content":{"rendered":"

\u5f53\u6211\u6253\u5f00\u4e66\u51c6\u5907\u5b66\u4e60k8s\u65f6\uff0c\u5374\u610f\u5916\u5730\u9047\u5230\u4e86\u5173\u4e8eDocker\u955c\u50cf\u8f7b\u91cf\u5316\u7684\u5185\u5bb9\uff0c\u6240\u4ee5\u6211\u4f1a\u628a\u5b83\u8bb0\u5f55\u4e0b\u6765\u4f5c\u4e3a\u5907\u5fd8\u5f55\u3002<\/p>\n

\u591a\u9636\u6bb5\u6784\u5efa\u662f\u6307<\/h1>\n

\u7b80\u800c\u8a00\u4e4b\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2aDockerfile\u9010\u6b65\u5730\u4f7f\u7528\u591a\u4e2a\u57fa\u7840\u955c\u50cf\u3002<\/p>\n

\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5982\u679c\u8981\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e golang \u5e94\u7528\u7a0b\u5e8f\u7684\u955c\u50cf\uff0c\u5982\u679c\u662f\u6211\uff0c\u6211\u4f1a\u8fd9\u6837\u5199…<\/p>\n

# \u901a\u5e38(\u30b7\u30f3\u30b0\u30eb\u30b9\u30c6\u30fc\u30b8\u30d3\u30eb\u30c9?)\u306e\u66f8\u304d\u65b9<\/span>\r\nFROM<\/span> golang:1.14.1-alpine3.11<\/span>\r\n\r\nCOPY<\/span> .\/main.go .\/<\/span>\r\n\r\nRUN <\/span>go build -o<\/span> .\/app .\/main.go\r\n\r\nENTRYPOINT<\/span> [\".\/app\"]<\/span>\r\n<\/code><\/pre>\n
\u6211\u662f\u4e00\u4e2a\u4e1a\u4f59\u5de5\u7a0b\u5e08\uff0c\u6240\u4ee5\u6211\u9009\u62e9\u4f7f\u7528Alpine\u955c\u50cf\u8f7b\u91cf\u4fbf\u643a\uff01\uff08\u81ea\u8c6a\uff09\u54c8\u54c8<\/p>\n
# \u30a4\u30e1\u30fc\u30b8\u30d3\u30eb\u30c9<\/span>\r\n$ <\/span>docker build -t<\/span> goapp1 .<\/span>\r\n\r\n# \u30a4\u30e1\u30fc\u30b8\u30b5\u30a4\u30ba\u306e\u78ba\u8a8d<\/span>\r\n$ <\/span>docker image ls\r\n<\/span>REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE\r\ngoapp1              latest              e44201621bca        6 seconds ago       377MB\r\nalpine              3.11                e389ae589224        4 months ago        5.62MB\r\ngolang              1.14.1-alpine3.11   760fdda71c8f        17 months ago       370MB\r\n<\/code><\/pre>\n
\u4f46\u662f\uff0c\u636e\u8bf4\u4ece\u8fd9\u91cc\u5f00\u59cb\u53ef\u4ee5\u8fdb\u4e00\u6b65\u51cf\u8f7b\u91cd\u91cf\u3002<\/p>\n
\u5bf9\u6bcf\u4e2a\u5904\u7406\u8fdb\u884c\u57fa\u7840\u56fe\u50cf\u5206\u5272\uff0c\u5e76\u53ea\u4fdd\u7559\u5fc5\u8981\u7684\u90e8\u5206\u5728\u6700\u7ec8\u56fe\u50cf\u4e2d\u8fdb\u884c\u8f7b\u91cf\u5316\u3002<\/h2>\n
\u5229\u7528\u591a\u9636\u6bb5\u6784\u5efa\uff0c\u53ef\u4ee5\u5c06\u6784\u5efa\u56fe\u50cf\u548c\u6267\u884c\u56fe\u50cf\u5206\u5f00\u3002<\/p>\n
# \u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b8\u30d3\u30eb\u30c9<\/span>\r\n\r\n# 1\u3064\u76ee\u306e\u30d9\u30fc\u30b9\u30a4\u30e1\u30fc\u30b8\u306bbuilder\u3068\u3044\u3046\u540d\u524d\u3092\u4ed8\u3051\u308b<\/span>\r\nFROM<\/span> golang:1.14.1-alpine3.11 as builder<\/span>\r\n# \u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u3092builder\u30a4\u30e1\u30fc\u30b8\u5185\u306b\u30b3\u30d4\u30fc<\/span>\r\nCOPY<\/span> .\/main.go .\/<\/span>\r\n# \u30d3\u30eb\u30c9\u5148\u3092\u6307\u5b9a<\/span>\r\nRUN <\/span>go build -o<\/span> \/app .\/main.go\r\n\r\n# \u8a08\u91cf\u30a4\u30e1\u30fc\u30b8\u30922\u3064\u76ee\u306e\u30d9\u30fc\u30b9\u30a4\u30e1\u30fc\u30b8\u3068\u3057\u3066\u6307\u5b9a<\/span>\r\nFROM<\/span> alpine:3.11<\/span>\r\n# builder\u30a4\u30e1\u30fc\u30b8\u304b\u3089\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc<\/span>\r\nCOPY<\/span> --from=builder \/app .<\/span>\r\n# 2\u3064\u76ee\u306e\u30a4\u30e1\u30fc\u30b8\u3060\u3051\u30b3\u30de\u30f3\u30c9\u5b9f\u884c<\/span>\r\nENTRYPOINT<\/span> [\".\/app\"]<\/span>\r\n<\/code><\/pre>\n
\u5904\u7406\u5185\u5bb9\u5982\u4e0b\uff0cbuild\u548crun\u7684\u5404\u4e2a\u6b65\u9aa4\u5728\u4e24\u4e2a\u56fe\u50cf\u4e4b\u95f4\u534f\u540c\u5408\u4f5c\u5e76\u5206\u62c5\u3002<\/p>\n
\u4f7f\u7528 golang:1.14.1-alpine3.11 \u955c\u50cf\u6784\u5efa main.go \u6587\u4ef6\u3002<\/p>\n
\u5c06\u4f7f\u7528builder\u955c\u50cf\u6784\u5efa\u7684app\u4e8c\u8fdb\u5236\u6587\u4ef6\u590d\u5236\u5230alpine:3.11\u955c\u50cf\u4e2d\u3002<\/p>\n
\u5728Alpine 3.11\u955c\u50cf\u4e0a\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n
\u56e0\u6b64\uff0c\u6700\u7ec8\u53ea\u9700\u4f7f\u7528\u7b2c\u4e8c\u4e2aalpine:3.11\u955c\u50cf\uff0c\u4ee5\u51cf\u8f7b\u955c\u50cf\u7684\u8d1f\u62c5\u3002<\/p>\n
# \u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b8\u30d3\u30eb\u30c9\u3092\u4f7f\u7528\u3057\u305fDockerfile\u304b\u3089\u30a4\u30e1\u30fc\u30b8\u30d3\u30eb\u30c9<\/span>\r\n$ <\/span>docker build -t<\/span> goapp2 .<\/span>\r\n\r\n# \u30a4\u30e1\u30fc\u30b8\u30b5\u30a4\u30ba\u306e\u78ba\u8a8d<\/span>\r\n$ <\/span>docker image ls\r\n<\/span>REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE\r\ngoapp2              latest              8fb96a4a5138        3 seconds ago       13.1MB\r\n<none>              <none>              a8884f1d05c5        4 seconds ago       377MB\r\ngoapp1              latest              e44201621bca        13 minutes ago      377MB\r\nalpine              3.11                e389ae589224        4 months ago        5.62MB\r\ngolang              1.14.1-alpine3.11   760fdda71c8f        17 months ago       370MB\r\n<\/code><\/pre>\n
\u53ef\u4ee5\u4ecegoapp1\uff08377MB\uff09\u7684\u5927\u5c0f\u964d\u4f4e\u5230goapp2\uff0813.1MB\uff09\u8fd9\u4e00\u70b9\u770b\u51fa\uff0c\u56fe\u50cf\u5df2\u7ecf\u88ab\u8f7b\u91cf\u5316\u4e86\u3002<\/p>\n
\u5982\u679c\u7b2c\u4e00\u4e2a\u6784\u5efa\u5668\u7684\u56fe\u50cf\u8fd8\u5448\u73b0\u4e3a\uff0c\u5982\u679c\u4e0d\u9700\u8981\u7684\u8bdd\u53ef\u4ee5\u5b89\u5168\u5220\u9664\u3002<\/p>\n
# IMAGE ID\u3092\u6307\u5b9a\u3057\u3066, <none>\u30a4\u30e1\u30fc\u30b8(builder\u30a4\u30e1\u30fc\u30b8)\u3092\u524a\u9664<\/span>\r\n$ <\/span>docker image rmi a8884f1d05c5\r\n\r\n# \u30a4\u30e1\u30fc\u30b8\u4e00\u89a7\u3092\u8868\u793a<\/span>\r\n$ <\/span>docker image ls\r\n<\/span>REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE\r\ngoapp2              latest              8fb96a4a5138        3 minutes ago       13.1MB\r\ngoapp1              latest              e44201621bca        16 minutes ago      377MB\r\nalpine              3.11                e389ae589224        4 months ago        5.62MB\r\ngolang              1.14.1-alpine3.11   760fdda71c8f        17 months ago       370MB\r\n<\/code><\/pre>\n
\u5728\u8fdb\u884c\u821e\u53f0\u4e4b\u95f4\u7684\u590d\u5236\u65f6\u9700\u8981\u6ce8\u610f\u7684\u4e8b\u9879<\/h1>\n
\u5728\u5c1d\u8bd5\u4f7f\u7528\u591a\u9636\u6bb5\u6784\u5efa\u65f6\uff0c\u9047\u5230\u4e86\u4e00\u4e2a\u95ee\u9898\uff0c\u5373\u5728\u62f7\u8d1d\u9636\u6bb5\u65f6\u4f7f\u7528\u76f8\u5bf9\u8def\u5f84\u65f6\u4f1a\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n
# [NG\u4f8b!!!]<\/span>\r\n\r\nFROM<\/span> golang:1.14.1-alpine3.11 as builder<\/span>\r\nCOPY<\/span> .\/main.go .\/<\/span>\r\n# \"\u76f8\u5bfe\u30d1\u30b9\"\u3067\u30a2\u30a6\u30c8\u30d7\u30c3\u30c8\u5148\u3092\u6307\u5b9a<\/span>\r\nRUN <\/span>go build -o<\/span> .\/app .\/main.go\r\n\r\nFROM<\/span> alpine:3.11<\/span>\r\n# builder\u30a4\u30e1\u30fc\u30b8\u304b\u3089\"\u76f8\u5bfe\u30d1\u30b9\"\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc<\/span>\r\nCOPY<\/span> --from=builder .\/app .<\/span>\r\nENTRYPOINT<\/span> [\".\/app\"]<\/span>\r\n<\/code><\/pre>\n
\u5efa\u6620\u50cf\u7ed3\u679c<\/p>\n
$ <\/span>docker build -t<\/span> ng-goapp .<\/span>\r\nSending build context to Docker daemon    6.4MB\r\nStep 1\/6 : FROM golang:1.14.1-alpine3.11 as builder\r\n ---<\/span>><\/span> 760fdda71c8f\r\nStep 2\/6 : COPY .\/main.go .\/\r\n ---<\/span>><\/span> Using cache\r\n ---<\/span>><\/span> 422b5182bade\r\nStep 3\/6 : RUN go build -o<\/span> .\/app .\/main.go\r\n ---<\/span>><\/span> Using cache\r\n ---<\/span>><\/span> 524167b98ef9\r\nStep 4\/6 : FROM alpine:3.11\r\n ---<\/span>><\/span> e389ae589224\r\nStep 5\/6 : COPY --from<\/span>=<\/span>builder .\/app .<\/span>\r\nCOPY failed: stat<\/span> \/var\/lib\/docker\/overlay2\/68c7926017fabca29e5aa3a12024d52b2e6e2f000dd08f046a8f698fc2079bf1\/merged\/app: no such file or directory\r\n# \u30d5\u30a1\u30a4\u30eb\u304c\u898b\u3064\u304b\u3089\u305a, \u30a8\u30e9\u30fc\u306b\u306a\u308b!<\/span>\r\n<\/code><\/pre>\n
\u6211\u60f3\u8981\u89e3\u51b3\u4e0a\u8ff0\u7684\u9519\u8bef\u3002<\/p>\n
\u4e0d\u540c\u955c\u50cf\u7684\u9ed8\u8ba4\u5f53\u524d\u76ee\u5f55\u672a\u5fc5\u76f8\u540c\u3002<\/h2>\n
\u5728\u8fdb\u884c\u821e\u53f0\u4e4b\u95f4\u7684\u590d\u5236\u65f6\uff0c\u4f7f\u7528\u76f8\u5bf9\u8def\u5f84\u4f1a\u5bfc\u81f4\u9519\u8bef\u7684\u539f\u56e0\u662f\uff0c\u6bcf\u4e2a\u57fa\u7840\u955c\u50cf\u7684\u9ed8\u8ba4\u5f53\u524d\u76ee\u5f55\u4e0d\u540c\u3002<\/p>\n
FROM<\/span> golang:1.14.1-alpine3.11<\/span>\r\n# \u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u8868\u793a<\/span>\r\nENTRYPOINT<\/span> [\"pwd\"]<\/span>\r\n<\/code><\/pre>\n
\u5728\u7b2c\u4e00\u4e2a\uff08builder\uff09\u56fe\u50cf\u4e2d\uff0c\u9ed8\u8ba4\u7684\u5f53\u524d\u76ee\u5f55\u4f3c\u4e4e\u662f\/go\u3002<\/p>\n
$ <\/span>docker image build -t<\/span> test1 .<\/span>\r\n$ <\/span>docker run test1\r\n\/go\r\n<\/code><\/pre>\n
\u4ee5\u76f8\u540c\u7684\u6b65\u9aa4\uff0c\u68c0\u67e5\u7b2c\u4e8c\u4e2a\u5e94\u7528\u7a0b\u5e8f\u6267\u884c\u56fe\u50cf\u4e2d\u7684\u9ed8\u8ba4\u5f53\u524d\u76ee\u5f55\u3002<\/p>\n
FROM<\/span> alpine:3.11<\/span>\r\n# \u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u8868\u793a<\/span>\r\nENTRYPOINT<\/span> [\"pwd\"]<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u4f3c\u4e4e\u662f\u3002<\/p>\n
$ <\/span>docker image build -t<\/span> test2 .<\/span>\r\n$ <\/span>docker run test2\r\n\/\r\n<\/code><\/pre>\n
\u56e0\u6b64\uff0c\u7531\u4e8e\/main.go\u5728\u7b2c\u4e00\u4e2a\u56fe\u50cf\u4e2d\u5728\/go\/app\u4e2d\u6784\u5efa\uff0c\u800c\u5728\u7b2c\u4e8c\u4e2a\u56fe\u50cf\u4e2d\u8bd5\u56fe\u4ece\/app\u590d\u5236\uff0c\u6240\u4ee5\u5bfc\u81f4\u4e86\u9519\u8bef\u3002<\/p>\n
[\u7ed3\u8bba] \u5728\u4e24\u4e2a\u9636\u6bb5\u4e4b\u95f4\u8fdb\u884c\u590d\u5236\u65f6\uff0c\u6700\u597d\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84\u3002<\/h2>\n
\u603b\u7684\u6765\u8bf4\uff0c\u7531\u4e8e\u6839\u636e\u57fa\u7840\u6620\u50cf\u7684\u4e0d\u540c\uff0c\u76f8\u5bf9\u8def\u5f84\u7684\u89e3\u91ca\u53ef\u80fd\u4f1a\u6709\u5dee\u5f02\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u591a\u9636\u6bb5\u6784\u5efa\u65f6\uff0c\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84\u6765\u8fdb\u884cCOPY\u64cd\u4f5c\u53ef\u4ee5\u51cf\u5c11\u989d\u5916\u7684\u9519\u8bef\u3002<\/p>\n
\u6b64\u5916\uff0c\u53ef\u4ee5\u8bf4\uff0c\u4e3a\u4e86\u5b89\u5168\u8d77\u89c1\uff0c\u9700\u8981\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84\u6765\u6307\u5b9amain.go\u7684\u6784\u5efa\u4f4d\u7f6e\u3002<\/p>\n
# \u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b8\u30d3\u30eb\u30c9<\/span>\r\n\r\nFROM<\/span> golang:1.14.1-alpine3.11 as builder<\/span>\r\nCOPY<\/span> .\/main.go .\/<\/span>\r\n# \"\u7d76\u5bfe\u30d1\u30b9\"\u3067\u30d3\u30eb\u30c9\u5148\u3092\u6307\u5b9a<\/span>\r\nRUN <\/span>go build -o<\/span> \/app .\/main.go\r\n\r\nFROM<\/span> alpine:3.11<\/span>\r\n# builder\u30a4\u30e1\u30fc\u30b8\u304b\u3089\"\u7d76\u5bfe\u30d1\u30b9\"\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc<\/span>\r\nCOPY<\/span> --from=builder \/app .<\/span>\r\nENTRYPOINT<\/span> [\".\/app\"]<\/span>\r\n<\/code><\/pre>\n
Docker\u955c\u50cf\u5728\u6784\u5efa\u8fc7\u7a0b\u4e2d\u5f88\u96be\u8fdb\u884c\u8c03\u8bd5\uff0c\u6240\u4ee5\u5728Dockerfile\u4e2d\u660e\u786e\u5904\u7406\u662f\u5173\u952e\u3002\u6211\u53d7\u76ca\u532a\u6d45\u3002<\/p>\n
\u8bf7\u63d0\u4f9b\u53c2\u8003\u6587\u732e<\/h1>\n
\u300aKubernetes\u5b8c\u5168\u6307\u5357 \u7b2c2\u7248\u300b\u662f\u7531\u9752\u5c71\u771f\u4e5f\u64b0\u5199\uff0c\u51fa\u7248\u4e8e2020\u5e74\u7684\u4e00\u672c\u4e66\u7c4d\uff0c\u51fa\u7248\u793e\u4e3a\u5370\u8c61\u793e\u3002<\/p>\n
\u7f51\u7ad9
\nDocker\u6587\u6863\u201c\u7f16\u5199\u6700\u4f73\u5b9e\u8df5\u7684Dockerfile – WORKDIR
\nWeb\u5de5\u7a0b\u5e08\u7684\u6742\u8bb0\u201c\u5173\u4e8eDockerfile\u7684COPY\u547d\u4ee4\u201d\uff082019\u5e7412\u670820\u65e5\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"
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