{"id":996,"date":"2026-06-09T07:55:25","date_gmt":"2026-06-09T07:55:25","guid":{"rendered":"https:\/\/opshub.com.cn\/?p=996"},"modified":"2026-06-09T07:56:06","modified_gmt":"2026-06-09T07:56:06","slug":"dockerfile-%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6%e5%8f%98%e9%87%8f%e6%9b%bf%e6%8d%a2%ef%bc%88%e4%b8%a4%e7%a7%8d%e5%b8%b8%e7%94%a8%e6%96%b9%e6%a1%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/opshub.com.cn\/?p=996","title":{"rendered":"Dockerfile \u914d\u7f6e\u6587\u4ef6\u53d8\u91cf\u66ff\u6362\uff08\u4e24\u79cd\u5e38\u7528\u65b9\u6848\uff09"},"content":{"rendered":"\n

\u65e5\u5e38\u5bb9\u5668\u5185\u914d\u7f6e\u6587\u4ef6\u52a8\u6001\u66ff\u6362\u53d8\u91cf\uff0c\u4e3b\u6d41\u5206 \u6784\u5efa\u65f6\u66ff\u6362<\/strong>\u3001\u8fd0\u884c\u65f6\u66ff\u6362<\/strong>\uff0c\u6309\u9700\u9009\u62e9\u5373\u53ef\u3002<\/p>\n\n\n\n

\u4e00\u3001\u524d\u7f6e\u8bf4\u660e<\/h2>\n\n\n\n

\u5047\u8bbe\u573a\u666f\uff1a<\/p>\n\n\n\n

\u5bb9\u5668\u5185\u914d\u7f6e\u6587\u4ef6 \/app\/config.ini<\/code>\uff0c\u5185\u5bb9\u5982\u4e0b\uff0c\u9700\u8981\u52a8\u6001\u66ff\u6362 ${APP_PORT}<\/code>\u3001${APP_NAME}<\/code><\/p>\n\n\n\n

[server]\nname = ${APP_NAME}\nport = ${APP_PORT}<\/code><\/pre>\n\n\n\n
\u65b9\u6848 1\uff1a\u6784\u5efa\u9636\u6bb5\u66ff\u6362\uff08ENV + sed\uff0c\u6784\u5efa\u65f6\u56fa\u5b9a\u503c\uff09<\/h2>\n\n\n\n
\u9002\u5408\uff1a\u53d8\u91cf\u503c\u6253\u5305\u8fdb\u955c\u50cf\uff0c\u542f\u52a8\u540e\u4e0d\u518d\u4fee\u6539<\/strong><\/p>\n\n\n\n
\u5b8c\u6574 Dockerfile<\/h3>\n\n\n\n
# \u57fa\u7840\u955c\u50cf\nFROM centos:7\n\n# 1. \u5b9a\u4e49\u6784\u5efa\/\u73af\u5883\u53d8\u91cf\nENV APP_NAME=\"demo-app\" \\\n    APP_PORT=\"8080\"\n\n# 2. \u590d\u5236\u539f\u59cb\u914d\u7f6e\u6587\u4ef6\u5230\u5bb9\u5668\nCOPY config.ini \/app\/config.ini\n\n# 3. \u4f7f\u7528 sed \u5168\u5c40\u66ff\u6362\u53d8\u91cf\uff08\u6838\u5fc3\uff09\nRUN sed -i \"s\/\\${APP_NAME}\/${APP_NAME}\/g\" \/app\/config.ini \\\n    && sed -i \"s\/\\${APP_PORT}\/${APP_PORT}\/g\" \/app\/config.ini\n\n# \u542f\u52a8\u547d\u4ee4\nCMD [\"cat\", \"\/app\/config.ini\"]<\/code><\/pre>\n\n\n\n
\u5173\u952e\u8bed\u6cd5\u89e3\u91ca<\/h3>\n\n\n\n
    \n
  • sed -i<\/code>\uff1a\u539f\u5730\u4fee\u6539\u6587\u4ef6<\/li>\n\n\n\n
  • s\/\u539f\u5b57\u7b26\u4e32\/\u65b0\u5b57\u7b26\u4e32\/g<\/code>\uff1a\u5168\u5c40\u5339\u914d\u66ff\u6362<\/li>\n\n\n\n
  • \u5916\u5c42\u7528\u53cc\u5f15\u53f7<\/strong>\uff1a\u624d\u80fd\u89e3\u6790 Docker ENV \u53d8\u91cf\uff08\u5355\u5f15\u53f7\u4e0d\u4f1a\u89e3\u6790\u53d8\u91cf\uff09<\/li>\n<\/ul>\n\n\n\n
    \u6784\u5efa & \u6d4b\u8bd5<\/p>\n\n\n\n
    # \u6784\u5efa\u955c\u50cf\ndocker build -t config-demo .\n\n# \u8fd0\u884c\u5bb9\u5668\u67e5\u770b\u7ed3\u679c\ndocker run --rm config-demo<\/code><\/pre>\n\n\n\n
    \u65b9\u6848 2\uff1a\u8fd0\u884c\u9636\u6bb5\u66ff\u6362\uff08ENTRYPOINT \u811a\u672c\uff0c\u542f\u52a8\u65f6\u52a8\u6001\u4f20\u53c2\uff09<\/h2>\n\n\n\n
    \u9002\u5408\uff1a\u540c\u4e00\u955c\u50cf\uff0c\u4e0d\u540c\u5bb9\u5668\u7528\u4e0d\u540c\u914d\u7f6e\uff08\u63a8\u8350\u751f\u4ea7\u4f7f\u7528\uff09<\/strong><\/p>\n\n\n\n
    \u6b65\u9aa4 1\uff1a\u7f16\u5199\u542f\u52a8\u811a\u672c start.sh<\/code><\/h3>\n\n\n\n
    \u548c Dockerfile\u3001config.ini<\/code> \u653e\u5728\u540c\u4e00\u76ee\u5f55<\/p>\n\n\n\n
    #!\/bin\/bash\n# \u542f\u52a8\u524d\u66ff\u6362\u914d\u7f6e\u6587\u4ef6\u53d8\u91cf\nsed -i \"s\/\\${APP_NAME}\/${APP_NAME}\/g\" \/app\/config.ini\nsed -i \"s\/\\${APP_PORT}\/${APP_PORT}\/g\" \/app\/config.ini\n\n# \u6267\u884c\u5bb9\u5668\u771f\u6b63\u7684\u542f\u52a8\u547d\u4ee4\uff08\u793a\u4f8b\uff1a\u524d\u53f0\u67e5\u770b\u914d\u7f6e\uff0c\u66ff\u6362\u4e3a\u4f60\u7684\u4e1a\u52a1\u542f\u52a8\u547d\u4ee4\uff09\nexec \"$@\"<\/code><\/pre>\n\n\n\n
    \u6b65\u9aa4 2\uff1aDockerfile<\/p>\n\n\n\n
    FROM centos:7\n\n# \u590d\u5236\u914d\u7f6e\u3001\u542f\u52a8\u811a\u672c\nCOPY config.ini \/app\/config.ini\nCOPY start.sh \/start.sh\n\n# \u8d4b\u4e88\u6267\u884c\u6743\u9650\nRUN chmod +x \/start.sh\n\n# \u5165\u53e3\u811a\u672c\nENTRYPOINT [\"\/start.sh\"]\n\n# \u9ed8\u8ba4\u6267\u884c\u547d\u4ee4\nCMD [\"cat\", \"\/app\/config.ini\"]<\/code><\/pre>\n\n\n\n
    \u6b65\u9aa4 3\uff1a\u8fd0\u884c\u5bb9\u5668\uff08\u52a8\u6001\u4f20\u53d8\u91cf\uff09<\/p>\n\n\n\n
    \u65b9\u5f0f 1\uff1adocker run -e \u4f20\u73af\u5883\u53d8\u91cf\uff08\u6700\u5e38\u7528\uff09<\/p>\n\n\n\n
    # \u6784\u5efa\u955c\u50cf\ndocker build -t config-runtime-demo .\n\n# \u52a8\u6001\u6307\u5b9a\u53d8\u91cf\u542f\u52a8\ndocker run --rm \\\n  -e APP_NAME=\"order-service\" \\\n  -e APP_PORT=\"9090\" \\\n  config-runtime-demo<\/code><\/pre>\n\n\n\n
    \u65b9\u5f0f 2\uff1adocker-compose \u4f20\u53d8\u91cf\uff08\u7f16\u6392\u573a\u666f\uff09<\/p>\n\n\n\n
    version: '3'\nservices:\n  app:\n    image: config-runtime-demo\n    environment:\n      APP_NAME: \"user-service\"\n      APP_PORT: \"8090\"<\/code><\/pre>\n\n\n\n
    \u8fdb\u9636\uff1a\u901a\u7528\u6a21\u677f\uff08\u652f\u6301\u5927\u91cf\u53d8\u91cf\uff09<\/h2>\n\n\n\n
    \u5982\u679c\u914d\u7f6e\u6587\u4ef6\u53d8\u91cf\u5f88\u591a\uff0c\u7edf\u4e00\u5199\u6cd5\uff1a<\/p>\n\n\n\n
      \n
    1. \u914d\u7f6e\u6587\u4ef6\u7edf\u4e00\u7528 ${\u53d8\u91cf\u540d}<\/code> \u5360\u4f4d<\/li>\n\n\n\n
    2. \u542f\u52a8\u811a\u672c\u6279\u91cf sed<\/code> \u66ff\u6362\uff0c\u6216\u4f7f\u7528 envsubst<\/code>\uff08\u4e13\u95e8\u53d8\u91cf\u66ff\u6362\u5de5\u5177\uff09<\/li>\n<\/ol>\n\n\n\n
      \u4f7f\u7528 envsubst\uff08\u6781\u7b80\u65b9\u6848\uff0c\u63a8\u8350\uff09<\/h3>\n\n\n\n
      envsubst<\/code> \u53ef\u81ea\u52a8\u66ff\u6362\u6587\u4ef6\u4e2d\u6240\u6709 ${xxx}<\/code> \u73af\u5883\u53d8\u91cf<\/strong>\uff0c\u65e0\u9700\u9010\u4e2a\u5199 sed\u3002<\/p>\n\n\n\n
      \u6539\u9020 start.sh<\/h4>\n\n\n\n
      #!\/bin\/bash\n# envsubst \u66ff\u6362\u6240\u6709\u53d8\u91cf\uff0c\u8f93\u51fa\u5230\u65b0\u6587\u4ef6\u8986\u76d6\u539f\u6587\u4ef6\nenvsubst < \/app\/config.ini.tpl > \/app\/config.ini\n\nexec \"$@\"<\/code><\/pre>\n\n\n\n
      Dockerfile \u6539\u52a8<\/h4>\n\n\n\n
      \u628a\u914d\u7f6e\u6587\u4ef6\u540e\u7f00\u6539\u4e3a .tpl<\/code> \u6a21\u677f\uff1a<\/p>\n\n\n\n
      FROM centos:7\n# \u5b89\u88c5 envsubst\uff08centos \u9700\u88c5 gettext\uff0calpine \u9700\u88c5 gettext-dev\uff09<\/em><\/strong><\/mark>\nRUN yum install -y gettext && yum clean all\n\nCOPY config.ini.tpl \/app\/config.ini.tpl\nCOPY start.sh \/start.sh\nRUN chmod +x \/start.sh\n\nENTRYPOINT [\"\/start.sh\"]\nCMD [\"cat\", \"\/app\/config.ini\"]<\/code><\/pre>\n\n\n\n
      \u4f18\u70b9\uff1a\u65b0\u589e\u53d8\u91cf\u4e0d\u7528\u6539\u811a\u672c\uff0c\u53ea\u9700\u8981\u5728\u6a21\u677f\u91cc\u52a0 ${\u53d8\u91cf}<\/code> \u5373\u53ef\u3002<\/p>\n\n\n\n
      \u9009\u578b\u603b\u7ed3<\/h2>\n\n\n\n
        \n
      1. \u6784\u5efa\u65f6\u66ff\u6362\uff08sed + ENV\uff09<\/strong>\uff1a\u53d8\u91cf\u56fa\u5b9a\u3001\u955c\u50cf\u5355\u4e00\uff0c\u9002\u5408\u9759\u6001\u914d\u7f6e<\/li>\n\n\n\n
      2. \u8fd0\u884c\u65f6 sed \u66ff\u6362<\/strong>\uff1a\u7075\u6d3b\u3001\u517c\u5bb9\u6027\u5f3a\uff0c\u6240\u6709\u57fa\u7840\u955c\u50cf\u90fd\u80fd\u7528<\/li>\n\n\n\n
      3. \u8fd0\u884c\u65f6 envsubst<\/strong>\uff1a\u53d8\u91cf\u591a\u3001\u6a21\u677f\u590d\u6742\u573a\u666f\uff0c\u4ee3\u7801\u6700\u7b80\u6d01\uff08\u9700\u9884\u88c5\u5de5\u5177\uff09<\/li>\n<\/ol>\n\n\n\n
        <\/p>\n","protected":false},"excerpt":{"rendered":"
        \u65e5\u5e38\u5bb9\u5668\u5185\u914d\u7f6e\u6587\u4ef6\u52a8\u6001\u66ff\u6362\u53d8\u91cf\uff0c\u4e3b\u6d41\u5206 \u6784\u5efa\u65f6\u66ff\u6362\u3001\u8fd0\u884c\u65f6\u66ff\u6362\uff0c\u6309\u9700\u9009\u62e9\u5373\u53ef\u3002 \u4e00\u3001\u524d\u7f6e\u8bf4\u660e \u5047\u8bbe\u573a\u666f\uff1a \u5bb9\u5668\u5185\u914d\u7f6e\u6587\u4ef6 \/app\/config.ini\uff0c\u5185\u5bb9\u5982\u4e0b\uff0c\u9700\u8981\u52a8\u6001\u66ff\u6362 ${APP_PORT}\u3001${APP_NAME} \u65b9\u6848 1\uff1a\u6784\u5efa\u9636\u6bb5\u66ff\u6362\uff08ENV + sed\uff0c\u6784\u5efa\u65f6\u56fa\u5b9a\u503c\uff09 \u9002\u5408\uff1a\u53d8\u91cf\u503c\u6253\u5305\u8fdb\u955c\u50cf\uff0c\u542f\u52a8\u540e\u4e0d\u518d\u4fee\u6539 \u5b8c\u6574 Dockerfile \u5173\u952e\u8bed\u6cd5\u89e3\u91ca \u6784\u5efa & \u6d4b\u8bd5 \u65b9\u6848 2\uff1a\u8fd0\u884c\u9636\u6bb5\u66ff\u6362\uff08ENTRYPOINT \u811a\u672c\uff0c\u542f\u52a8\u65f6\u52a8\u6001\u4f20\u53c2\uff09 \u9002\u5408\uff1a\u540c\u4e00\u955c\u50cf\uff0c\u4e0d\u540c\u5bb9\u5668\u7528\u4e0d\u540c\u914d\u7f6e\uff08\u63a8\u8350\u751f\u4ea7\u4f7f\u7528\uff09 \u6b65\u9aa4 1\uff1a\u7f16\u5199\u542f\u52a8\u811a\u672c start.sh \u548c Dockerfile\u3001config.ini \u653e\u5728\u540c\u4e00\u76ee\u5f55 \u6b65\u9aa4 2\uff1aDockerfile \u6b65\u9aa4 3\uff1a\u8fd0\u884c\u5bb9\u5668\uff08\u52a8\u6001\u4f20\u53d8\u91cf\uff09 \u65b9\u5f0f 1\uff1adocker run -e \u4f20\u73af\u5883\u53d8\u91cf\uff08\u6700\u5e38\u7528\uff09 \u65b9\u5f0f 2\uff1adocker-compose \u4f20\u53d8\u91cf\uff08\u7f16\u6392\u573a\u666f\uff09 \u8fdb\u9636\uff1a\u901a\u7528\u6a21\u677f\uff08\u652f\u6301\u5927\u91cf\u53d8\u91cf\uff09 \u5982\u679c\u914d\u7f6e\u6587\u4ef6\u53d8\u91cf\u5f88\u591a\uff0c\u7edf\u4e00\u5199\u6cd5\uff1a \u4f7f\u7528 envsubst\uff08\u6781\u7b80\u65b9\u6848\uff0c\u63a8\u8350\uff09 envsubst \u53ef\u81ea\u52a8\u66ff\u6362\u6587\u4ef6\u4e2d\u6240\u6709 ${xxx} \u73af\u5883\u53d8\u91cf\uff0c\u65e0\u9700\u9010\u4e2a\u5199 sed\u3002 \u6539\u9020 start.sh Dockerfile \u6539\u52a8 \u628a\u914d\u7f6e\u6587\u4ef6\u540e\u7f00\u6539\u4e3a .tpl […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-996","post","type-post","status-publish","format-standard","hentry","category-dockerkubernetes"],"_links":{"self":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/996","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=996"}],"version-history":[{"count":2,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/996\/revisions"}],"predecessor-version":[{"id":1000,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/996\/revisions\/1000"}],"wp:attachment":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=996"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=996"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}