{"id":13531,"date":"2024-11-15T19:11:18","date_gmt":"2024-11-15T11:11:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/13531\/"},"modified":"2024-11-15T19:11:18","modified_gmt":"2024-11-15T11:11:18","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87%e5%ae%b9%e5%99%a8%e5%8c%96%e9%83%a8%e7%bd%b2%e4%bc%98%e5%8c%96docker%e7%8e%af%e5%a2%83%e7%9a%84%e8%b5%84%e6%ba%90%e5%88%a9%e7%94%a8%e7%8e%87","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/13531\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7\u5bb9\u5668\u5316\u90e8\u7f72\u4f18\u5316Docker\u73af\u5883\u7684\u8d44\u6e90\u5229\u7528\u7387"},"content":{"rendered":"

\u5982\u4f55\u901a\u8fc7\u5bb9\u5668\u5316\u90e8\u7f72\u4f18\u5316Docker\u73af\u5883\u7684\u8d44\u6e90\u5229\u7528\u7387<\/h1>\n

\u5728\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u5bb9\u5668\u5316\u6280\u672f\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5c24\u5176\u662fDocker\u3002Docker\u5141\u8bb8\u5f00\u53d1\u8005\u5c06\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u4f9d\u8d56\u9879\u6253\u5305\u5230\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5bb9\u5668\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u8d44\u6e90\u5229\u7528\u7387\u548c\u66f4\u5feb\u7684\u90e8\u7f72\u901f\u5ea6\u3002\u7136\u800c\uff0c\u5982\u4f55\u8fdb\u4e00\u6b65\u4f18\u5316Docker\u73af\u5883\u7684\u8d44\u6e90\u5229\u7528\u7387\uff0c\u4ecd\u7136\u662f\u8bb8\u591a\u4f01\u4e1a\u9762\u4e34\u7684\u6311\u6218\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u901a\u8fc7\u5bb9\u5668\u5316\u90e8\u7f72\u6765\u4f18\u5316Docker\u73af\u5883\u7684\u51e0\u79cd\u6709\u6548\u65b9\u6cd5\u3002<\/p>\n

1. \u7406\u89e3Docker\u7684\u8d44\u6e90\u7ba1\u7406<\/h2>\n

Docker\u5bb9\u5668\u5171\u4eab\u5bbf\u4e3b\u673a\u7684\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u56e0\u6b64\u5728\u8d44\u6e90\u7ba1\u7406\u4e0a\u5177\u6709\u4e00\u5b9a\u7684\u7075\u6d3b\u6027\u3002Docker\u63d0\u4f9b\u4e86\u591a\u79cd\u8d44\u6e90\u9650\u5236\u529f\u80fd\uff0c\u5305\u62ecCPU\u3001\u5185\u5b58\u548c\u5b58\u50a8\u7b49\u3002\u901a\u8fc7\u5408\u7406\u914d\u7f6e\u8fd9\u4e9b\u8d44\u6e90\u9650\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u8d44\u6e90\u7684\u6d6a\u8d39\u3002<\/p>\n

1.1 CPU\u548c\u5185\u5b58\u9650\u5236<\/h3>\n

\u5728Docker\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u9650\u5236\u5bb9\u5668\u7684CPU\u548c\u5185\u5b58\u4f7f\u7528\uff1a<\/p>\n

docker run --cpus=\".5\" --memory=\"256m\" my_container<\/code><\/pre>\n
\u4e0a\u8ff0\u547d\u4ee4\u9650\u5236\u4e86\u5bb9\u5668\u4f7f\u7528\u6700\u591a50%\u7684CPU\u548c256MB\u7684\u5185\u5b58\u3002\u901a\u8fc7\u5408\u7406\u8bbe\u7f6e\u8fd9\u4e9b\u53c2\u6570\uff0c\u53ef\u4ee5\u786e\u4fdd\u5bb9\u5668\u5728\u8fd0\u884c\u65f6\u4e0d\u4f1a\u5360\u7528\u8fc7\u591a\u7684\u7cfb\u7edf\u8d44\u6e90\uff0c\u4ece\u800c\u63d0\u9ad8\u6574\u4f53\u7684\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n
1.2 \u5b58\u50a8\u4f18\u5316<\/h3>\n
Docker\u652f\u6301\u591a\u79cd\u5b58\u50a8\u9a71\u52a8\uff0c\u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8I\/O\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Overlay2\u5b58\u50a8\u9a71\u52a8\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8\u7a7a\u95f4\u7684\u4f7f\u7528\uff0c\u5e76\u63d0\u9ad8\u6587\u4ef6\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n
2. \u4f7f\u7528\u591a\u9636\u6bb5\u6784\u5efa<\/h2>\n
\u591a\u9636\u6bb5\u6784\u5efa\u662fDocker 17.05\u5f15\u5165\u7684\u4e00\u9879\u529f\u80fd\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u4e00\u4e2aDockerfile\u4e2d\u4f7f\u7528\u591a\u4e2aFROM\u6307\u4ee4\uff0c\u4ece\u800c\u5728\u6784\u5efa\u8fc7\u7a0b\u4e2d\u5206\u79bb\u51fa\u6784\u5efa\u73af\u5883\u548c\u8fd0\u884c\u73af\u5883\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u663e\u8457\u51cf\u5c11\u6700\u7ec8\u955c\u50cf\u7684\u5927\u5c0f\uff0c\u63d0\u9ad8\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n
FROM golang:1.16 AS builder\nWORKDIR \/app\nCOPY . .\nRUN go build -o myapp\n\nFROM alpine:latest\nWORKDIR \/app\nCOPY --from=builder \/app\/myapp .\nCMD [\".\/myapp\"]<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6784\u5efa\u9636\u6bb5\u4f7f\u7528\u4e86\u8f83\u5927\u7684Golang\u955c\u50cf\uff0c\u800c\u6700\u7ec8\u8fd0\u884c\u9636\u6bb5\u5219\u4f7f\u7528\u4e86\u66f4\u5c0f\u7684Alpine\u955c\u50cf\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u8d44\u6e90\u5360\u7528\u3002<\/p>\n
3. \u5bb9\u5668\u7f16\u6392\u4e0e\u81ea\u52a8\u6269\u5c55<\/h2>\n
\u4f7f\u7528Kubernetes\u7b49\u5bb9\u5668\u7f16\u6392\u5de5\u5177\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bb9\u5668\u7684\u81ea\u52a8\u6269\u5c55\u548c\u8d1f\u8f7d\u5747\u8861\u3002\u901a\u8fc7\u76d1\u63a7\u5bb9\u5668\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0cKubernetes\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u8d1f\u8f7d\u52a8\u6001\u8c03\u6574\u5bb9\u5668\u7684\u6570\u91cf\uff0c\u4ece\u800c\u4f18\u5316\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n
3.1 Horizontal Pod Autoscaler<\/h3>\n
Kubernetes\u7684Horizontal Pod Autoscaler\uff08HPA\uff09\u53ef\u4ee5\u6839\u636eCPU\u6216\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u81ea\u52a8\u8c03\u6574Pod\u7684\u6570\u91cf\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aHPA\u7684\u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n
apiVersion: autoscaling\/v2beta2\nkind: HorizontalPodAutoscaler\nmetadata:\n  name: myapp-hpa\nspec:\n  scaleTargetRef:\n    apiVersion: apps\/v1\n    kind: Deployment\n    name: myapp\n  minReplicas: 1\n  maxReplicas: 10\n  metrics:\n  - type: Resource\n    resource:\n      name: cpu\n      target:\n        type: Utilization\n        averageUtilization: 50<\/code><\/pre>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u786e\u4fdd\u5728\u9ad8\u8d1f\u8f7d\u65f6\u81ea\u52a8\u589e\u52a0\u5bb9\u5668\u6570\u91cf\uff0c\u800c\u5728\u4f4e\u8d1f\u8f7d\u65f6\u51cf\u5c11\u5bb9\u5668\u6570\u91cf\uff0c\u4ece\u800c\u5b9e\u73b0\u8d44\u6e90\u7684\u9ad8\u6548\u5229\u7528\u3002<\/p>\n
4. \u5b9a\u671f\u6e05\u7406\u65e0\u7528\u8d44\u6e90<\/h2>\n
\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0cDocker\u73af\u5883\u4e2d\u53ef\u80fd\u4f1a\u79ef\u7d2f\u5927\u91cf\u7684\u65e0\u7528\u955c\u50cf\u548c\u5bb9\u5668\u3002\u5b9a\u671f\u6e05\u7406\u8fd9\u4e9b\u65e0\u7528\u8d44\u6e90\u53ef\u4ee5\u91ca\u653e\u5b58\u50a8\u7a7a\u95f4\uff0c\u63d0\u9ad8\u8d44\u6e90\u5229\u7528\u7387\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6e05\u7406\u672a\u4f7f\u7528\u7684\u955c\u50cf\u548c\u5bb9\u5668\uff1a<\/p>\n
docker system prune -a<\/code><\/pre>\n
\u6b64\u547d\u4ee4\u5c06\u5220\u9664\u6240\u6709\u672a\u4f7f\u7528\u7684\u5bb9\u5668\u3001\u7f51\u7edc\u548c\u955c\u50cf\uff0c\u5e2e\u52a9\u4fdd\u6301Docker\u73af\u5883\u7684\u6574\u6d01\u3002<\/p>\n
\u603b\u7ed3<\/h2>\n
\u901a\u8fc7\u5408\u7406\u914d\u7f6eDocker\u7684\u8d44\u6e90\u7ba1\u7406\u3001\u4f7f\u7528\u591a\u9636\u6bb5\u6784\u5efa\u3001\u5bb9\u5668\u7f16\u6392\u4e0e\u81ea\u52a8\u6269\u5c55\uff0c\u4ee5\u53ca\u5b9a\u671f\u6e05\u7406\u65e0\u7528\u8d44\u6e90\uff0c\u53ef\u4ee5\u663e\u8457\u4f18\u5316Docker\u73af\u5883\u7684\u8d44\u6e90\u5229\u7528\u7387\u3002\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u6027\u80fd\uff0c\u8fd8\u964d\u4f4e\u4e86\u8fd0\u8425\u6210\u672c\u3002\u5bf9\u4e8e\u5e0c\u671b\u5728\u4e91\u73af\u5883\u4e2d\u5b9e\u73b0\u9ad8\u6548\u8d44\u6e90\u5229\u7528\u7684\u4f01\u4e1a\u6765\u8bf4\uff0c\u9009\u62e9\u5408\u9002\u7684\u4e91\u670d\u52a1\u63d0\u4f9b\u5546\u81f3\u5173\u91cd\u8981\u3002\u7c73\u4e91\u63d0\u4f9b\u591a\u79cd\u4e91\u670d\u52a1\u5668<\/a><\/em>\u89e3\u51b3\u65b9\u6848\uff0c\u5e2e\u52a9\u4f01\u4e1a\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u8d44\u6e90\u7ba1\u7406\u4e0e\u5229\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u901a\u8fc7\u5bb9\u5668\u5316\u90e8\u7f72\u4f18\u5316Docker\u73af\u5883\u7684\u8d44\u6e90\u5229\u7528\u7387 \u5728\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u5bb9\u5668\u5316\u6280\u672f\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5c24\u5176\u662fDocker\u3002Docker\u5141\u8bb8\u5f00\u53d1\u8005\u5c06\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u4f9d\u8d56\u9879\u6253\u5305\u5230\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5bb9\u5668\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u8d44\u6e90\u5229\u7528\u7387\u548c\u66f4\u5feb\u7684\u90e8\u7f72\u901f\u5ea6\u3002\u7136\u800c\uff0c\u5982\u4f55\u8fdb\u4e00\u6b65\u4f18\u5316Docker\u73af\u5883\u7684\u8d44\u6e90\u5229\u7528\u7387\uff0c\u4ecd\u7136\u662f\u8bb8\u591a\u4f01\u4e1a\u9762\u4e34\u7684\u6311\u6218\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u901a\u8fc7\u5bb9\u5668\u5316\u90e8\u7f72\u6765\u4f18\u5316Docker\u73af\u5883\u7684\u51e0\u79cd\u6709\u6548\u65b9\u6cd5\u3002 1. \u7406\u89e3Docker\u7684\u8d44\u6e90\u7ba1\u7406 Docker\u5bb9\u5668\u5171\u4eab\u5bbf\u4e3b\u673a\u7684\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u56e0\u6b64\u5728\u8d44\u6e90\u7ba1\u7406\u4e0a\u5177\u6709\u4e00\u5b9a\u7684\u7075\u6d3b\u6027\u3002Docker\u63d0\u4f9b\u4e86\u591a\u79cd\u8d44\u6e90\u9650\u5236\u529f\u80fd\uff0c\u5305\u62ecCPU\u3001\u5185\u5b58\u548c\u5b58\u50a8\u7b49\u3002\u901a\u8fc7\u5408\u7406\u914d\u7f6e\u8fd9\u4e9b\u8d44\u6e90\u9650\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u8d44\u6e90\u7684\u6d6a\u8d39\u3002 1.1 CPU\u548c\u5185\u5b58\u9650\u5236 \u5728Docker\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u9650\u5236\u5bb9\u5668\u7684CPU\u548c\u5185\u5b58\u4f7f\u7528\uff1a docker run –cpus=”.5″ –memory=”256m” my_container \u4e0a\u8ff0\u547d\u4ee4\u9650\u5236\u4e86\u5bb9\u5668\u4f7f\u7528\u6700\u591a50%\u7684CPU\u548c256MB\u7684\u5185\u5b58\u3002\u901a\u8fc7\u5408\u7406\u8bbe\u7f6e\u8fd9\u4e9b\u53c2\u6570\uff0c\u53ef\u4ee5\u786e\u4fdd\u5bb9\u5668\u5728\u8fd0\u884c\u65f6\u4e0d\u4f1a\u5360\u7528\u8fc7\u591a\u7684\u7cfb\u7edf\u8d44\u6e90\uff0c\u4ece\u800c\u63d0\u9ad8\u6574\u4f53\u7684\u8d44\u6e90\u5229\u7528\u7387\u3002 1.2 \u5b58\u50a8\u4f18\u5316 Docker\u652f\u6301\u591a\u79cd\u5b58\u50a8\u9a71\u52a8\uff0c\u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8I\/O\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Overlay2\u5b58\u50a8\u9a71\u52a8\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8\u7a7a\u95f4\u7684\u4f7f\u7528\uff0c\u5e76\u63d0\u9ad8\u6587\u4ef6\u7cfb\u7edf\u7684\u6027\u80fd\u3002 2. \u4f7f\u7528\u591a\u9636\u6bb5\u6784\u5efa \u591a\u9636\u6bb5\u6784\u5efa\u662fDocker 17.05\u5f15\u5165\u7684\u4e00\u9879\u529f\u80fd\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u4e00\u4e2aDockerfile\u4e2d\u4f7f\u7528\u591a\u4e2aFROM\u6307\u4ee4\uff0c\u4ece\u800c\u5728\u6784\u5efa\u8fc7\u7a0b\u4e2d\u5206\u79bb\u51fa\u6784\u5efa\u73af\u5883\u548c\u8fd0\u884c\u73af\u5883\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u663e\u8457\u51cf\u5c11\u6700\u7ec8\u955c\u50cf\u7684\u5927\u5c0f\uff0c\u63d0\u9ad8\u8d44\u6e90\u5229\u7528\u7387\u3002 FROM golang:1.16 AS builder WORKDIR \/app COPY . . RUN go build -o myapp FROM alpine:latest WORKDIR \/app COPY –from=builder \/app\/myapp . CMD [“.\/myapp”] \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6784\u5efa\u9636\u6bb5\u4f7f\u7528\u4e86\u8f83\u5927\u7684Golang\u955c\u50cf\uff0c\u800c\u6700\u7ec8\u8fd0\u884c\u9636\u6bb5\u5219\u4f7f\u7528\u4e86\u66f4\u5c0f\u7684Alpine\u955c\u50cf\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u8d44\u6e90\u5360\u7528\u3002 3. \u5bb9\u5668\u7f16\u6392\u4e0e\u81ea\u52a8\u6269\u5c55 \u4f7f\u7528Kubernetes\u7b49\u5bb9\u5668\u7f16\u6392\u5de5\u5177\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bb9\u5668\u7684\u81ea\u52a8\u6269\u5c55\u548c\u8d1f\u8f7d\u5747\u8861\u3002\u901a\u8fc7\u76d1\u63a7\u5bb9\u5668\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0cKubernetes\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u8d1f\u8f7d\u52a8\u6001\u8c03\u6574\u5bb9\u5668\u7684\u6570\u91cf\uff0c\u4ece\u800c\u4f18\u5316\u8d44\u6e90\u5229\u7528\u7387\u3002 3.1 Horizontal Pod Autoscaler Kubernetes\u7684Horizontal Pod […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-13531","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/13531","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=13531"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/13531\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=13531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=13531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=13531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}