{"id":12602,"date":"2024-11-15T12:37:02","date_gmt":"2024-11-15T04:37:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/12602\/"},"modified":"2024-11-15T12:37:02","modified_gmt":"2024-11-15T04:37:02","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8docker%e4%b8%ad%e5%ae%9e%e7%8e%b0%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1%e4%b8%8e%e8%87%aa%e5%8a%a8%e6%89%a9%e5%b1%95%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/12602\/","title":{"rendered":"\u5982\u4f55\u5728Docker\u4e2d\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u6269\u5c55\uff1f"},"content":{"rendered":"

\u5982\u4f55\u5728Docker\u4e2d\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u6269\u5c55\uff1f<\/h1>\n

\u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u90e8\u7f72\u4e2d\uff0cDocker\u5df2\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u5bb9\u5668\u5316\u6280\u672f\u3002\u5b83\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\u7684\u53ef\u79fb\u690d\u6027\u548c\u4e00\u81f4\u6027\u3002\u5728Docker\u73af\u5883\u4e2d\uff0c\u8d1f\u8f7d\u5747\u8861\u548c\u81ea\u52a8\u6269\u5c55\u662f\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u9ad8\u53ef\u7528\u6027\u548c\u6027\u80fd\u7684\u5173\u952e\u56e0\u7d20\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Docker\u4e2d\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u6269\u5c55\u3002<\/p>\n

\u8d1f\u8f7d\u5747\u8861\u7684\u6982\u5ff5<\/h2>\n

\u8d1f\u8f7d\u5747\u8861\u662f\u6307\u5c06\u7528\u6237\u8bf7\u6c42\u5206\u914d\u5230\u591a\u4e2a\u670d\u52a1\u5668\u6216\u5bb9\u5668\u4e0a\uff0c\u4ee5\u786e\u4fdd\u6ca1\u6709\u5355\u4e00\u7684\u670d\u52a1\u5668\u8fc7\u8f7d\u3002\u901a\u8fc7\u8d1f\u8f7d\u5747\u8861\uff0c\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u53ef\u7528\u6027\u3002Docker\u4e2d\u5e38\u7528\u7684\u8d1f\u8f7d\u5747\u8861\u5de5\u5177\u5305\u62ecNginx\u3001HAProxy\u548cTraefik\u7b49\u3002<\/p>\n

\u4f7f\u7528Nginx\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861<\/h3>\n

Nginx\u662f\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684HTTP\u548c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u5e7f\u6cdb\u7528\u4e8e\u8d1f\u8f7d\u5747\u8861\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684Nginx\u914d\u7f6e\u793a\u4f8b\uff0c\u7528\u4e8e\u5c06\u8bf7\u6c42\u5206\u53d1\u5230\u591a\u4e2aDocker\u5bb9\u5668\uff1a<\/p>\n

http {\n    upstream myapp {\n        server app1:80;\n        server app2:80;\n        server app3:80;\n    }\n\n    server {\n        listen 80;\n\n        location \/ {\n            proxy_pass http:\/\/myapp;\n        }\n    }\n}<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0cNginx\u5c06\u8bf7\u6c42\u5206\u53d1\u5230\u540d\u4e3aapp1\u3001app2\u548capp3\u7684\u4e09\u4e2aDocker\u5bb9\u5668\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5206\u6563\u8d1f\u8f7d\uff0c\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u53ef\u7528\u6027\u3002<\/p>\n
\u81ea\u52a8\u6269\u5c55\u7684\u6982\u5ff5<\/h2>\n
\u81ea\u52a8\u6269\u5c55\u662f\u6307\u6839\u636e\u8d1f\u8f7d\u60c5\u51b5\u81ea\u52a8\u589e\u52a0\u6216\u51cf\u5c11\u5bb9\u5668\u7684\u6570\u91cf\u3002Docker Swarm\u548cKubernetes\u662f\u4e24\u79cd\u5e38\u7528\u7684\u5bb9\u5668\u7f16\u6392\u5de5\u5177\uff0c\u5b83\u4eec\u90fd\u652f\u6301\u81ea\u52a8\u6269\u5c55\u529f\u80fd\u3002<\/p>\n
\u4f7f\u7528Docker Swarm\u5b9e\u73b0\u81ea\u52a8\u6269\u5c55<\/h3>\n
Docker Swarm\u662fDocker\u7684\u539f\u751f\u96c6\u7fa4\u7ba1\u7406\u5de5\u5177\uff0c\u652f\u6301\u670d\u52a1\u7684\u81ea\u52a8\u6269\u5c55\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u547d\u4ee4\u793a\u4f8b\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u81ea\u52a8\u6269\u5c55\u529f\u80fd\u7684\u670d\u52a1\uff1a<\/p>\n
docker service create --name myapp --replicas 3 myimage<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u547d\u4ee4\u4e2d\uff0c–replicas\u53c2\u6570\u6307\u5b9a\u4e86\u670d\u52a1\u7684\u526f\u672c\u6570\u91cf\u3002\u53ef\u4ee5\u901a\u8fc7\u76d1\u63a7\u670d\u52a1\u7684CPU\u548c\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u7ed3\u5408Docker API\u6216\u5176\u4ed6\u76d1\u63a7\u5de5\u5177\uff0c\u52a8\u6001\u8c03\u6574\u526f\u672c\u6570\u91cf\u3002<\/p>\n
\u4f7f\u7528Kubernetes\u5b9e\u73b0\u81ea\u52a8\u6269\u5c55<\/h3>\n
Kubernetes\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\uff0c\u63d0\u4f9b\u4e86\u66f4\u4e3a\u590d\u6742\u7684\u81ea\u52a8\u6269\u5c55\u529f\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528Horizontal Pod Autoscaler\uff08HPA\uff09\u6765\u6839\u636eCPU\u6216\u5176\u4ed6\u6307\u6807\u81ea\u52a8\u8c03\u6574Pod\u7684\u6570\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2aHPA\u7684\u793a\u4f8b\u914d\u7f6e\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
\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0cHPA\u4f1a\u6839\u636eCPU\u4f7f\u7528\u7387\u81ea\u52a8\u8c03\u6574myapp\u7684Pod\u6570\u91cf\uff0c\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u5728\u9ad8\u8d1f\u8f7d\u65f6\u80fd\u591f\u5e73\u7a33\u8fd0\u884c\u3002<\/p>\n
\u603b\u7ed3<\/h2>\n
\u5728Docker\u4e2d\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u6269\u5c55\u662f\u63d0\u5347\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u548c\u53ef\u7528\u6027\u7684\u6709\u6548\u65b9\u6cd5\u3002\u901a\u8fc7\u4f7f\u7528Nginx\u3001Docker Swarm\u6216Kubernetes\u7b49\u5de5\u5177\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u7ba1\u7406\u548c\u4f18\u5316\u5bb9\u5668\u5316\u5e94\u7528\u7a0b\u5e8f\u7684\u8fd0\u884c\u3002\u5bf9\u4e8e\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u7075\u6d3b\u6027\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\u89e3\u51b3\u65b9\u6848\uff0c\u5305\u62ec\u7f8e\u56fdVPS<\/a>\u548c\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u5e2e\u52a9\u4f01\u4e1a\u5b9e\u73b0\u9ad8\u6548\u7684\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u6269\u5c55\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u5728Docker\u4e2d\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u6269\u5c55\uff1f \u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u90e8\u7f72\u4e2d\uff0cDocker\u5df2\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u5bb9\u5668\u5316\u6280\u672f\u3002\u5b83\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\u7684\u53ef\u79fb\u690d\u6027\u548c\u4e00\u81f4\u6027\u3002\u5728Docker\u73af\u5883\u4e2d\uff0c\u8d1f\u8f7d\u5747\u8861\u548c\u81ea\u52a8\u6269\u5c55\u662f\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u9ad8\u53ef\u7528\u6027\u548c\u6027\u80fd\u7684\u5173\u952e\u56e0\u7d20\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Docker\u4e2d\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u6269\u5c55\u3002 \u8d1f\u8f7d\u5747\u8861\u7684\u6982\u5ff5 \u8d1f\u8f7d\u5747\u8861\u662f\u6307\u5c06\u7528\u6237\u8bf7\u6c42\u5206\u914d\u5230\u591a\u4e2a\u670d\u52a1\u5668\u6216\u5bb9\u5668\u4e0a\uff0c\u4ee5\u786e\u4fdd\u6ca1\u6709\u5355\u4e00\u7684\u670d\u52a1\u5668\u8fc7\u8f7d\u3002\u901a\u8fc7\u8d1f\u8f7d\u5747\u8861\uff0c\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u53ef\u7528\u6027\u3002Docker\u4e2d\u5e38\u7528\u7684\u8d1f\u8f7d\u5747\u8861\u5de5\u5177\u5305\u62ecNginx\u3001HAProxy\u548cTraefik\u7b49\u3002 \u4f7f\u7528Nginx\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861 Nginx\u662f\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684HTTP\u548c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u5e7f\u6cdb\u7528\u4e8e\u8d1f\u8f7d\u5747\u8861\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684Nginx\u914d\u7f6e\u793a\u4f8b\uff0c\u7528\u4e8e\u5c06\u8bf7\u6c42\u5206\u53d1\u5230\u591a\u4e2aDocker\u5bb9\u5668\uff1a http { upstream myapp { server app1:80; server app2:80; server app3:80; } server { listen 80; location \/ { proxy_pass http:\/\/myapp; } } } \u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0cNginx\u5c06\u8bf7\u6c42\u5206\u53d1\u5230\u540d\u4e3aapp1\u3001app2\u548capp3\u7684\u4e09\u4e2aDocker\u5bb9\u5668\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5206\u6563\u8d1f\u8f7d\uff0c\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u53ef\u7528\u6027\u3002 \u81ea\u52a8\u6269\u5c55\u7684\u6982\u5ff5 \u81ea\u52a8\u6269\u5c55\u662f\u6307\u6839\u636e\u8d1f\u8f7d\u60c5\u51b5\u81ea\u52a8\u589e\u52a0\u6216\u51cf\u5c11\u5bb9\u5668\u7684\u6570\u91cf\u3002Docker Swarm\u548cKubernetes\u662f\u4e24\u79cd\u5e38\u7528\u7684\u5bb9\u5668\u7f16\u6392\u5de5\u5177\uff0c\u5b83\u4eec\u90fd\u652f\u6301\u81ea\u52a8\u6269\u5c55\u529f\u80fd\u3002 \u4f7f\u7528Docker Swarm\u5b9e\u73b0\u81ea\u52a8\u6269\u5c55 Docker Swarm\u662fDocker\u7684\u539f\u751f\u96c6\u7fa4\u7ba1\u7406\u5de5\u5177\uff0c\u652f\u6301\u670d\u52a1\u7684\u81ea\u52a8\u6269\u5c55\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u547d\u4ee4\u793a\u4f8b\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u81ea\u52a8\u6269\u5c55\u529f\u80fd\u7684\u670d\u52a1\uff1a docker service create –name myapp –replicas 3 myimage \u5728\u8fd9\u4e2a\u547d\u4ee4\u4e2d\uff0c–replicas\u53c2\u6570\u6307\u5b9a\u4e86\u670d\u52a1\u7684\u526f\u672c\u6570\u91cf\u3002\u53ef\u4ee5\u901a\u8fc7\u76d1\u63a7\u670d\u52a1\u7684CPU\u548c\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u7ed3\u5408Docker API\u6216\u5176\u4ed6\u76d1\u63a7\u5de5\u5177\uff0c\u52a8\u6001\u8c03\u6574\u526f\u672c\u6570\u91cf\u3002 \u4f7f\u7528Kubernetes\u5b9e\u73b0\u81ea\u52a8\u6269\u5c55 Kubernetes\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\uff0c\u63d0\u4f9b\u4e86\u66f4\u4e3a\u590d\u6742\u7684\u81ea\u52a8\u6269\u5c55\u529f\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528Horizontal Pod Autoscaler\uff08HPA\uff09\u6765\u6839\u636eCPU\u6216\u5176\u4ed6\u6307\u6807\u81ea\u52a8\u8c03\u6574Pod\u7684\u6570\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2aHPA\u7684\u793a\u4f8b\u914d\u7f6e\uff1a apiVersion: autoscaling\/v2beta2 kind: […]<\/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-12602","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/12602","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=12602"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/12602\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=12602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=12602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=12602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}