\u5728\u5fae\u670d\u52a1\u67b6\u6784\u76db\u884c\u7684\u4eca\u5929\uff0cDocker \u5df2\u6210\u4e3a\u5e94\u7528\u6253\u5305\u548c\u90e8\u7f72\u7684\u6807\u51c6\u65b9\u5f0f\u3002\u7136\u800c\uff0c\u5f88\u591a\u5f00\u53d1\u8005\u5728\u6784\u5efa\u955c\u50cf\u65f6\uff0c\u5e38\u5e38\u9677\u5165\u4e00\u4e2a\u8bef\u533a\uff1a\u5c06\u7f16\u8bd1\u73af\u5883\u548c\u8fd0\u884c\u73af\u5883\u6df7\u5728\u4e00\u8d77\uff0c\u5bfc\u81f4\u955c\u50cf\u4f53\u79ef\u81c3\u80bf\u3001\u6784\u5efa\u901f\u5ea6\u7f13\u6162\u3001\u5b89\u5168\u98ce\u9669\u589e\u52a0\u3002<\/p>\n
\u672c\u6587\u5c06\u901a\u8fc7\u4e00\u4e2a\u771f\u5b9e\u7684 Go \u540e\u7aef\u5e94\u7528\u793a\u4f8b\uff0c\u5e26\u4f60\u6df1\u5165\u7406\u89e3 Docker \u591a\u9636\u6bb5\u6784\u5efa\u7684\u5a01\u529b\u3002\u6211\u4eec\u5c06\u4ece\u4f20\u7edf\u6784\u5efa\u65b9\u5f0f\u51fa\u53d1\uff0c\u9010\u6b65\u4f18\u5316\uff0c\u6700\u7ec8\u5c06\u955c\u50cf\u4ece 1.2GB \u7cbe\u7b80\u5230 15MB\uff0c\u540c\u65f6\u63d0\u5347\u6784\u5efa\u901f\u5ea6\u548c\u5b89\u5168\u6027\u3002\u65e0\u8bba\u4f60\u662f\u540e\u7aef\u5f00\u53d1\u8fd8\u662f\u524d\u7aef\u5f00\u53d1\uff0c\u8fd9\u4e9b\u5b9e\u8df5\u90fd\u80fd\u76f4\u63a5\u5e94\u7528\u5230\u4f60\u7684\u9879\u76ee\u4e2d\u3002<\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u5178\u578b\u7684 Go \u540e\u7aef\u5e94\u7528\u3002\u5047\u8bbe\u9879\u76ee\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n
\nmyapp\/\n\u251c\u2500\u2500 main.go\n\u251c\u2500\u2500 go.mod\n\u251c\u2500\u2500 go.sum\n\u2514\u2500\u2500 Dockerfile\n<\/code><\/pre>\nmain.go<\/code> \u662f\u4e00\u4e2a\u7b80\u5355\u7684 HTTP \u670d\u52a1\uff1a<\/p>\n\npackage main\n\nimport (\n "fmt"\n "net\/http"\n)\n\nfunc main() {\n http.HandleFunc("\/", func(w http.ResponseWriter, r *http.Request) {\n fmt.Fprintf(w, "Hello, Docker!")\n })\n http.ListenAndServe(":8080", nil)\n}\n<\/code><\/pre>\n\u4f20\u7edf\u7684 Dockerfile \u53ef\u80fd\u957f\u8fd9\u6837\uff1a<\/p>\n
\nFROM golang:1.20\n\nWORKDIR \/app\n\nCOPY . .\n\nRUN go build -o myapp .\n\nEXPOSE 8080\n\nCMD [".\/myapp"]\n<\/code><\/pre>\n\u6784\u5efa\u5e76\u67e5\u770b\u955c\u50cf\u5927\u5c0f\uff1a<\/p>\n
\n$ docker build -t myapp:traditional .\n$ docker images | grep myapp\nmyapp traditional f2a3b4c5d6e7 1.2GB\n<\/code><\/pre>\n\u75db\u70b9\u5f88\u660e\u663e\uff1a<\/strong><\/p>\n\n- \u4f53\u79ef\u5de8\u5927<\/strong>\uff1a1.2GB\uff0c\u56e0\u4e3a\u5305\u542b\u4e86\u5b8c\u6574\u7684 Go \u5de5\u5177\u94fe\u3001\u6e90\u7801\u3001\u7f16\u8bd1\u7f13\u5b58\u7b49\u3002<\/li>\n
- \u5b89\u5168\u98ce\u9669<\/strong>\uff1a\u955c\u50cf\u4e2d\u5305\u542b\u4e86\u7f16\u8bd1\u5de5\u5177\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u5b83\u4eec\u8fdb\u4e00\u6b65\u5165\u4fb5\u3002<\/li>\n
- \u6784\u5efa\u7f13\u6162<\/strong>\uff1a\u6bcf\u6b21\u4fee\u6539\u4ee3\u7801\uff0c\u90fd\u9700\u8981\u91cd\u65b0\u4e0b\u8f7d\u4f9d\u8d56\u3001\u7f16\u8bd1\uff0c\u7f13\u5b58\u5229\u7528\u7387\u4f4e\u3002<\/li>\n<\/ul>\n
2. \u591a\u9636\u6bb5\u6784\u5efa\u5165\u95e8<\/h2>\n
\u591a\u9636\u6bb5\u6784\u5efa\u7684\u6838\u5fc3\u601d\u60f3\u662f\uff1a\u5728\u6784\u5efa\u9636\u6bb5\u4f7f\u7528\u5b8c\u6574\u7684\u7f16\u8bd1\u73af\u5883\uff0c\u5728\u8fd0\u884c\u9636\u6bb5\u53ea\u4fdd\u7559\u5fc5\u8981\u7684\u8fd0\u884c\u65f6\u4f9d\u8d56<\/strong>\u3002Docker \u5141\u8bb8\u5728\u4e00\u4e2a Dockerfile \u4e2d\u4f7f\u7528\u591a\u4e2a FROM<\/code> \u6307\u4ee4\uff0c\u6bcf\u4e2a FROM<\/code> \u5f00\u542f\u4e00\u4e2a\u65b0\u7684\u6784\u5efa\u9636\u6bb5\uff0c\u6211\u4eec\u53ef\u4ee5\u4ece\u4e4b\u524d\u7684\u9636\u6bb5\u590d\u5236\u6587\u4ef6\u3002<\/p>\n2.1 \u7b2c\u4e00\u4e2a\u591a\u9636\u6bb5\u6784\u5efa<\/h3>\n
\u6211\u4eec\u91cd\u5199 Dockerfile\uff1a<\/p>\n
\n# \u9636\u6bb51\uff1a\u6784\u5efa\u9636\u6bb5\nFROM golang:1.20 AS builder\n\nWORKDIR \/app\n\nCOPY go.mod go.sum .\/\nRUN go mod download\n\nCOPY . .\n\nRUN go build -o myapp .\n\n# \u9636\u6bb52\uff1a\u8fd0\u884c\u9636\u6bb5\nFROM alpine:latest\n\nWORKDIR \/root\/\n\n# \u4ece\u6784\u5efa\u9636\u6bb5\u590d\u5236\u7f16\u8bd1\u597d\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\nCOPY --from=builder \/app\/myapp .\n\nEXPOSE 8080\n\nCMD [".\/myapp"]\n<\/code><\/pre>\n\u6784\u5efa\u5e76\u67e5\u770b\u5927\u5c0f\uff1a<\/p>\n
\n$ docker build -t myapp:multi .\n$ docker images | grep myapp\nmyapp multi 123456789abc 15MB\n<\/code><\/pre>\n\u4ece 1.2GB \u5230 15MB\uff0c\u51cf\u5c11\u4e86 99%\uff01<\/strong> \u56e0\u4e3a\u8fd0\u884c\u9636\u6bb5\u53ea\u5305\u542b Alpine Linux\uff08\u7ea6 5MB\uff09\u548c\u6211\u4eec\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\uff08\u7ea6 10MB\uff09\u3002<\/p>\n2.2 \u9a8c\u8bc1\u8fd0\u884c<\/h3>\n\n$ docker run -p 8080:8080 myapp:multi\n$ curl http:\/\/localhost:8080\nHello, Docker!\n<\/code><\/pre>\n\u5b8c\u7f8e\u8fd0\u884c\uff01<\/p>\n
3. \u8fdb\u9636\u4f18\u5316\u6280\u5de7<\/h2>\n
\u591a\u9636\u6bb5\u6784\u5efa\u53ea\u662f\u7b2c\u4e00\u6b65\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u3002<\/p>\n
3.1 \u4f7f\u7528\u66f4\u5c0f\u7684\u57fa\u7840\u955c\u50cf<\/h3>\n
alpine:latest<\/code> \u5df2\u7ecf\u5f88\u5c0f\uff0c\u4f46\u8fd8\u53ef\u4ee5\u66f4\u5c0f\u3002\u5bf9\u4e8e Go \u5e94\u7528\uff0c\u751a\u81f3\u53ef\u4ee5\u4f7f\u7528 scratch<\/code>\uff08\u7a7a\u955c\u50cf\uff09\uff1a<\/p>\n\n# \u8fd0\u884c\u9636\u6bb5\nFROM scratch\n\nWORKDIR \/\n\nCOPY --from=builder \/app\/myapp .\n\nEXPOSE 8080\n\nCMD [".\/myapp"]\n<\/code><\/pre>\n\u6ce8\u610f\uff1ascratch<\/code> \u955c\u50cf\u4e0d\u5305\u542b\u4efb\u4f55\u7cfb\u7edf\u5e93\uff0c\u5982\u679c\u4f60\u7684\u5e94\u7528\u9700\u8981\u52a8\u6001\u94fe\u63a5\u6216\u4f9d\u8d56\u7cfb\u7edf\u5e93\uff0c\u5c31\u4e0d\u80fd\u7528\u3002\u4f46 Go \u9ed8\u8ba4\u662f\u9759\u6001\u7f16\u8bd1\u7684\uff0c\u6240\u4ee5\u53ef\u4ee5\u76f4\u63a5\u7528\u3002<\/p>\n\u6784\u5efa\u540e\u955c\u50cf\u53ea\u6709\u7ea6 10MB\u3002<\/p>\n
3.2 \u5229\u7528\u6784\u5efa\u7f13\u5b58\u52a0\u901f\u6784\u5efa<\/h3>\n
\u5728\u591a\u9636\u6bb5\u6784\u5efa\u4e2d\uff0cDocker \u4f1a\u7f13\u5b58\u6bcf\u4e00\u5c42\u3002\u4e3a\u4e86\u6700\u5927\u5316\u7f13\u5b58\u547d\u4e2d\uff0c\u6211\u4eec\u5e94\u8be5\u628a\u4f9d\u8d56\u4e0b\u8f7d\u548c\u4ee3\u7801\u590d\u5236\u5206\u5f00\u3002<\/p>\n
\u4f18\u5316\u524d\uff1a<\/strong><\/p>\n\nCOPY . .\nRUN go mod download\n<\/code><\/pre>\n\u4f18\u5316\u540e\uff1a<\/strong><\/p>\n\nCOPY go.mod go.sum .\/\nRUN go mod download\nCOPY . .\n<\/code><\/pre>\n\u8fd9\u6837\uff0c\u53ea\u8981 go.mod<\/code> \u548c go.sum<\/code> \u4e0d\u53d8\uff0c\u4f9d\u8d56\u5c42\u5c31\u4f1a\u547d\u4e2d\u7f13\u5b58\uff0c\u5927\u5927\u52a0\u5feb\u6784\u5efa\u901f\u5ea6\u3002<\/p>\n3.3 \u591a\u5e73\u53f0\u6784\u5efa\uff08Buildx\uff09<\/h3>\n
\u4f7f\u7528 Docker Buildx \u53ef\u4ee5\u8f7b\u677e\u6784\u5efa\u591a\u5e73\u53f0\u955c\u50cf\uff0c\u4f8b\u5982 linux\/amd64<\/code> \u548c linux\/arm64<\/code>\u3002<\/p>\n\n$ docker buildx build --platform linux\/amd64,linux\/arm64 -t myapp:multi .\n<\/code><\/pre>\n\u6ce8\u610f\uff1a\u6784\u5efa\u591a\u5e73\u53f0\u955c\u50cf\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u57fa\u7840\u955c\u50cf\u652f\u6301\u8fd9\u4e9b\u5e73\u53f0\u3002<\/p>\n
3.4 \u5b89\u5168\u52a0\u56fa<\/h3>\n\n- \u4f7f\u7528\u975e root \u7528\u6237\u8fd0\u884c<\/strong>\uff1a\u5728\u8fd0\u884c\u9636\u6bb5\u521b\u5efa\u7528\u6237\uff0c\u907f\u514d\u4ee5 root \u8fd0\u884c\u5e94\u7528\u3002<\/li>\n<\/ul>\n
\nFROM alpine:latest\n\nRUN addgroup -S appgroup && adduser -S appuser -G appgroup\n\nWORKDIR \/home\/appuser\/\n\nCOPY --from=builder \/app\/myapp .\n\nUSER appuser\n\nEXPOSE 8080\n\nCMD [".\/myapp"]\n<\/code><\/pre>\n\n- \u626b\u63cf\u955c\u50cf\u6f0f\u6d1e<\/strong>\uff1a\u4f7f\u7528
docker scan<\/code> \u6216 trivy<\/code> \u626b\u63cf\u955c\u50cf\u3002<\/li>\n<\/ul>\n4. \u524d\u7aef\u9879\u76ee\u4e2d\u7684\u5e94\u7528<\/h2>\n
\u591a\u9636\u6bb5\u6784\u5efa\u4e0d\u4ec5\u9002\u7528\u4e8e\u540e\u7aef\uff0c\u524d\u7aef\u9879\u76ee\u540c\u6837\u9002\u7528\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a React \u5e94\u7528\uff1a<\/p>\n
\n# \u6784\u5efa\u9636\u6bb5\nFROM node:18 AS builder\n\nWORKDIR \/app\n\nCOPY package*.json .\/\nRUN npm install\n\nCOPY . .\nRUN npm run build\n\n# \u8fd0\u884c\u9636\u6bb5\nFROM nginx:alpine\n\nCOPY --from=builder \/app\/build \/usr\/share\/nginx\/html\n\nEXPOSE 80\n\nCMD ["nginx", "-g", "daemon off;"]\n<\/code><\/pre>\n\u8fd9\u6837\uff0c\u955c\u50cf\u4e2d\u53ea\u5305\u542b\u6784\u5efa\u540e\u7684\u9759\u6001\u6587\u4ef6\uff0c\u4f53\u79ef\u5c0f\u4e14\u5b89\u5168\u3002<\/p>\n
5. \u5e38\u89c1\u5751\u4e0e\u8e29\u5751\u7ecf\u9a8c<\/h2>\n5.1 \u65f6\u533a\u95ee\u9898<\/h3>\n
Alpine \u955c\u50cf\u9ed8\u8ba4\u6ca1\u6709\u65f6\u533a\u6570\u636e\uff0c\u5982\u679c\u4f60\u7684\u5e94\u7528\u9700\u8981\u6b63\u786e\u7684\u65f6\u95f4\uff0c\u9700\u8981\u5b89\u88c5 tzdata<\/code>\u3002<\/p>\n\nRUN apk add --no-cache tzdata\nENV TZ=Asia\/Shanghai\n<\/code><\/pre>\n5.2 CA \u8bc1\u4e66<\/h3>\n
\u5982\u679c\u5e94\u7528\u9700\u8981\u8bbf\u95ee HTTPS \u5916\u90e8\u670d\u52a1\uff0c\u9700\u8981\u5b89\u88c5 CA \u8bc1\u4e66\u3002<\/p>\n
\nRUN apk add --no-cache ca-certificates\n<\/code><\/pre>\n5.3 \u4f9d\u8d56\u5e93\u7f3a\u5931<\/h3>\n
\u5982\u679c\u5e94\u7528\u9700\u8981\u52a8\u6001\u94fe\u63a5\uff08\u5982 CGO \u542f\u7528\uff09\uff0c\u76f4\u63a5\u4f7f\u7528 scratch<\/code> \u4f1a\u8fd0\u884c\u5931\u8d25\u3002\u6b64\u65f6\u5efa\u8bae\u4f7f\u7528 alpine<\/code> \u5e76\u5b89\u88c5\u6240\u9700\u5e93\uff0c\u6216\u8005\u4f7f\u7528 debian:stable-slim<\/code>\u3002<\/p>\n5.4 \u6784\u5efa\u4e0a\u4e0b\u6587\u592a\u5927<\/h3>\n
\u5982\u679c\u9879\u76ee\u76ee\u5f55\u4e2d\u6709\u5927\u91cf\u65e0\u5173\u6587\u4ef6\uff08\u5982 .git<\/code>\u3001node_modules\uff09\uff0c\u4f1a\u62d6\u6162\u6784\u5efa\u3002\u4f7f\u7528 .dockerignore<\/code> \u6587\u4ef6\u6392\u9664\u5b83\u4eec\u3002<\/p>\n\n.git\nnode_modules\nbuild\n<\/code><\/pre>\n6. \u603b\u7ed3\u4e0e\u5c55\u671b<\/h2>\n
\u901a\u8fc7\u591a\u9636\u6bb5\u6784\u5efa\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\uff1a<\/p>\n
\n- \u955c\u50cf\u4f53\u79ef\u51cf\u5c11 99%<\/strong>\uff1a\u4ece 1.2GB \u5230 15MB\u3002<\/li>\n
- \u5b89\u5168\u6027\u63d0\u5347<\/strong>\uff1a\u8fd0\u884c\u9636\u6bb5\u4e0d\u5305\u542b\u7f16\u8bd1\u5de5\u5177\uff0c\u4e14\u4ee5\u975e root \u7528\u6237\u8fd0\u884c\u3002<\/li>\n
- \u6784\u5efa\u901f\u5ea6\u52a0\u5feb<\/strong>\uff1a\u5408\u7406\u5229\u7528\u7f13\u5b58\uff0c\u907f\u514d\u91cd\u590d\u4e0b\u8f7d\u4f9d\u8d56\u3002<\/li>\n<\/ul>\n
\u4e0b\u4e00\u6b65\u65b9\u5411\uff1a<\/strong><\/p>\n\n- \u4f7f\u7528
distroless<\/code> \u955c\u50cf\uff08\u5982 gcr.io\/distroless\/base<\/code>\uff09\u8fdb\u4e00\u6b65\u7cbe\u7b80\u3002<\/li>\n- \u7ed3\u5408 CI\/CD \u6d41\u6c34\u7ebf\uff0c\u81ea\u52a8\u5316\u6784\u5efa\u548c\u626b\u63cf\u3002<\/li>\n
- \u63a2\u7d22
ko<\/code> \u7b49\u5de5\u5177\uff0c\u65e0\u9700 Dockerfile \u76f4\u63a5\u6784\u5efa\u955c\u50cf\u3002<\/li>\n<\/ul>\n\u591a\u9636\u6bb5\u6784\u5efa\u662f Docker \u8fdb\u9636\u7684\u5fc5\u5907\u6280\u80fd\uff0c\u5e0c\u671b\u672c\u6587\u80fd\u5e2e\u52a9\u4f60\u4f18\u5316\u73b0\u6709\u9879\u76ee\u3002\u5982\u679c\u4f60\u6709\u66f4\u591a\u95ee\u9898\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u4ea4\u6d41\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u672c\u6587\u6df1\u5165\u63a2\u8ba8 Docker \u591a\u9636\u6bb5\u6784\u5efa\u7684\u5b9e\u8df5\u6280\u5de7\uff0c\u901a\u8fc7\u4e00\u4e2a Go \u540e\u7aef\u5e94\u7528\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5c06\u955c\u50cf\u4ece 1.2GB \u7cbe\u7b80\u5230 15MB\uff0c\u540c\u65f6\u63d0\u5347\u6784\u5efa\u901f\u5ea6\u548c\u5b89\u5168\u6027\uff0c\u5e76\u5206\u4eab\u7f13\u5b58\u4f18\u5316\u3001\u5b89\u5168\u52a0\u56fa\u7b49\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[63,60,92,61,62],"class_list":["post-233","post","type-post","status-publish","format-standard","hentry","category-3","category-4","tag-devops","tag-docker","tag-go","tag-61","tag-62"],"_links":{"self":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts\/233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=233"}],"version-history":[{"count":0,"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts\/233\/revisions"}],"wp:attachment":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}