\u5982\u4f55\u7528\u6700\u5c11\u7684\u8d44\u6e90\u642d\u5efa\u4e00\u5957\u80fd\u8dd1\u751f\u4ea7\u73af\u5883\u7684 Kubernetes \u96c6\u7fa4\uff1f\u8fd9\u662f\u5f88\u591a\u4e2d\u5c0f\u56e2\u961f\u5728\u4e1a\u52a1\u589e\u957f\u5230\u591a\u670d\u52a1\u9636\u6bb5\u540e\u9762\u4e34\u7684\u7b2c\u4e00\u4e2a\u6280\u672f\u51b3\u7b56\u3002\u6807\u51c6 Kubernetes \u7684 control plane \u9700\u8981\u81f3\u5c11 2 \u6838 4GB \u5185\u5b58\uff0cetcd\u3001API Server\u3001Scheduler\u3001Controller Manager \u56db\u4e2a\u7ec4\u4ef6\u7f3a\u4e00\u4e0d\u53ef\uff0c\u5149\u5b89\u88c5\u914d\u7f6e\u5c31\u8981\u534a\u5929\u3002\u5bf9\u4e8e 5 \u5230 15 \u4eba\u7684\u6280\u672f\u56e2\u961f\u6765\u8bf4\uff0c\u8fd9\u7b14\u8fd0\u7ef4\u6210\u672c\u5e76\u4e0d\u5212\u7b97\u3002<\/p>\n
K3s \u662f Rancher \u5f00\u6e90\u7684\u8f7b\u91cf\u7ea7 Kubernetes \u53d1\u884c\u7248\uff0c\u5c06\u6574\u4e2a control plane \u538b\u7f29\u4e3a\u5355\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c512MB \u5185\u5b58\u5373\u53ef\u542f\u52a8\u3002CNCF 2024 \u5e74\u8c03\u67e5\u6570\u636e\u663e\u793a\uff0cK3s \u5df2\u6210\u4e3a\u8fb9\u7f18\u8ba1\u7b97\u548c\u4e2d\u5c0f\u89c4\u6a21\u90e8\u7f72\u4e2d\u4f7f\u7528\u7387\u6700\u9ad8\u7684 K8s \u53d1\u884c\u7248\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ece\u96f6\u5f00\u59cb\uff0c\u5e26\u4f60\u5b8c\u6210 K3s \u96c6\u7fa4\u7684\u5b89\u88c5\u3001\u9a8c\u8bc1\u548c\u7b2c\u4e00\u4e2a\u5e94\u7528\u90e8\u7f72\uff0c\u6574\u4e2a\u8fc7\u7a0b\u7ea6 30 \u5230 60 \u5206\u949f\u3002<\/p>\n
K3s \u5bf9\u786c\u4ef6\u7684\u8981\u6c42\u6bd4\u6807\u51c6 K8s \u4f4e\u5f88\u591a\uff0c\u4f46\u4ecd\u9700\u6ee1\u8db3\u57fa\u672c\u6761\u4ef6\u3002Server \u8282\u70b9\uff08\u63a7\u5236\u5e73\u9762\uff09\u6700\u4f4e 1 \u6838 512MB \u5185\u5b58\uff0c\u63a8\u8350 2 \u6838 2GB \u5185\u5b58\uff1bAgent \u8282\u70b9\uff08\u5de5\u4f5c\u8282\u70b9\uff09\u6700\u4f4e 1 \u6838 512MB\uff0c\u63a8\u8350 2 \u6838 4GB \u5185\u5b58\u3002\u64cd\u4f5c\u7cfb\u7edf\u65b9\u9762\uff0cUbuntu 20.04\/22.04 LTS\u3001Debian 11\/12\u3001CentOS 7\/8\/Stream \u5747\u5df2\u9a8c\u8bc1\u53ef\u7528\uff0c\u5185\u6838\u7248\u672c\u5efa\u8bae 5.4 \u4ee5\u4e0a\u3002<\/p>\n
\u7f51\u7edc\u65b9\u9762\uff0c\u6240\u6709\u8282\u70b9\u4e4b\u95f4\u5fc5\u987b\u80fd\u4e92\u901a\uff0cServer \u8282\u70b9\u9700\u8981\u5f00\u653e 6443 \u7aef\u53e3\uff08Kubernetes API\uff09\u548c 10250 \u7aef\u53e3\uff08kubelet\uff09\u3002\u5982\u679c\u4f60\u8fd8\u6ca1\u6709\u5408\u9002\u7684\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u8003\u8651\u4ece Hostease VPS \u4e3b\u673a<\/a> \u9009\u62e9\u4e00\u53f0 2 \u6838 2G \u7684\u673a\u5668\u4f5c\u4e3a Server \u8282\u70b9\u3002<\/p>\n \u5b89\u88c5\u524d\u8fd8\u9700\u8981\u5b8c\u6210\u4e24\u9879\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u914d\u7f6e\u3002\u7b2c\u4e00\uff0c\u5173\u95ed swap\u2014\u2014K3s \u548c\u6807\u51c6 K8s \u4e00\u6837\u8981\u6c42 swap \u5fc5\u987b\u5173\u95ed\uff0c\u5426\u5219 kubelet \u542f\u52a8\u4f1a\u62a5\u9519\u3002\u7b2c\u4e8c\uff0c\u914d\u7f6e\u9632\u706b\u5899\u653e\u884c 6443\/tcp\u300110250\/tcp\u30018472\/udp\uff08Flannel VXLAN\uff09\u7b49\u7aef\u53e3\u3002\u5177\u4f53\u64cd\u4f5c\u53ef\u4ee5\u53c2\u8003 VPS \u9632\u706b\u5899\u914d\u7f6e\u6307\u5357<\/a> \u4e2d\u7684\u8be6\u7ec6\u6b65\u9aa4\u3002<\/p>\n K3s \u7684\u5b89\u88c5\u8fc7\u7a0b\u662f\u5b83\u6700\u5927\u7684\u5356\u70b9\u4e4b\u4e00\u3002Server \u8282\u70b9\u53ea\u9700\u6267\u884c\u5b98\u65b9\u5b89\u88c5\u811a\u672c\uff0cK3s \u4f1a\u81ea\u52a8\u4ee5 systemd \u670d\u52a1\u65b9\u5f0f\u8fd0\u884c\u3002\u5b89\u88c5\u5b8c\u6210\u540e\u7528 kubectl get nodes \u547d\u4ee4\u9a8c\u8bc1\uff0c\u770b\u5230\u8282\u70b9\u72b6\u6001\u4e3a Ready \u5373\u8868\u793a Server \u8282\u70b9\u5c31\u7eea\u3002<\/p>\n \u63a5\u4e0b\u6765\u83b7\u53d6 Agent \u8282\u70b9\u52a0\u5165\u96c6\u7fa4\u6240\u9700\u7684 token\uff0c\u8fd9\u4e32 token \u7c7b\u4f3c\u96c6\u7fa4\u7684”\u5165\u573a\u5238”\u3002\u5728 Agent \u8282\u70b9\u4e0a\u6267\u884c\u5b89\u88c5\u811a\u672c\u65f6\uff0c\u901a\u8fc7\u73af\u5883\u53d8\u91cf\u6307\u5b9a Server \u8282\u70b9\u7684 IP \u5730\u5740\u548c token\uff0c\u5927\u7ea6 30 \u79d2\u540e Agent \u8282\u70b9\u5c31\u4f1a\u81ea\u52a8\u6ce8\u518c\u5230\u96c6\u7fa4\u4e2d\u3002<\/p>\n \u4e00\u4e2a\u5e38\u89c1\u7684\u5751\u662f\uff1a\u5982\u679c Server \u8282\u70b9\u6709\u591a\u4e2a\u7f51\u5361\uff08\u540c\u65f6\u6709\u5185\u7f51\u548c\u516c\u7f51 IP\uff09\uff0cK3s \u9ed8\u8ba4\u53ef\u80fd\u7ed1\u5b9a\u5230\u9519\u8bef\u7684\u63a5\u53e3\u3002\u8fd9\u65f6\u9700\u8981\u5728\u5b89\u88c5\u65f6\u901a\u8fc7 INSTALL_K3S_EXEC \u53c2\u6570\u6307\u5b9a node-ip\u3002\u5982\u679c\u4f60\u6b63\u5728\u642d\u5efa\u591a\u8282\u70b9\u96c6\u7fa4\uff0c\u5185\u7f51\u4e92\u901a\u548c IP \u7ed1\u5b9a\u7684\u95ee\u9898\u5c24\u5176\u9700\u8981\u6ce8\u610f\u3002\u53ef\u4ee5\u53c2\u8003 Webhook \u81ea\u52a8\u5316\u90e8\u7f72\u5b9e\u6218<\/a> \u4e2d\u5173\u4e8e\u670d\u52a1\u5668\u7f51\u7edc\u914d\u7f6e\u7684\u90e8\u5206\uff0c\u63d0\u524d\u89c4\u5212\u597d\u8282\u70b9\u95f4\u7684\u901a\u4fe1\u65b9\u6848\u3002<\/p>\n \u96c6\u7fa4\u642d\u597d\u4e86\uff0c\u4f46”\u80fd\u8fde\u4e0a”\u548c”\u80fd\u6b63\u5e38\u8dd1\u5e94\u7528”\u662f\u4e24\u56de\u4e8b\u3002\u5efa\u8bae\u7528\u4e00\u4e2a Nginx Deployment \u914d\u5408 NodePort Service \u6765\u9a8c\u8bc1\u6574\u4e2a\u96c6\u7fa4\u7684\u8c03\u5ea6\u3001\u7f51\u7edc\u548c\u5b58\u50a8\u94fe\u8def\u662f\u5426\u901a\u7545\u3002\u521b\u5efa 2 \u4e2a\u526f\u672c\u7684 Nginx \u90e8\u7f72\uff0c\u8bbe\u7f6e\u5408\u7406\u7684\u8d44\u6e90\u8bf7\u6c42\u548c\u9650\u5236\uff08requests: 64Mi \u5185\u5b58\/50m CPU\uff0climits: 128Mi \u5185\u5b58\/100m CPU\uff09\uff0c\u7136\u540e\u901a\u8fc7 NodePort \u66b4\u9732\u670d\u52a1\u3002<\/p>\n \u5982\u679c 2 \u4e2a Pod \u5206\u522b\u8fd0\u884c\u5728\u4e0d\u540c\u8282\u70b9\u4e0a\uff0c\u8bf4\u660e\u96c6\u7fa4\u7684\u8c03\u5ea6\u903b\u8f91\u5de5\u4f5c\u6b63\u5e38\u3002\u7528\u6d4f\u89c8\u5668\u8bbf\u95ee\u4efb\u610f\u8282\u70b9 IP \u7684\u5bf9\u5e94\u7aef\u53e3\uff0c\u770b\u5230 Nginx \u6b22\u8fce\u9875\u9762\u5c31\u8868\u793a\u6574\u4e2a\u94fe\u8def\u901a\u4e86\u3002<\/p>\n K3s \u9ed8\u8ba4\u4f7f\u7528 Traefik \u4f5c\u4e3a Ingress Controller\uff0c\u6807\u51c6 K8s \u9ed8\u8ba4\u6ca1\u6709\u9884\u88c5\u3002\u5982\u679c\u4f60\u7684\u4e1a\u52a1\u9700\u8981\u901a\u8fc7\u57df\u540d\u8def\u7531\u6d41\u91cf\u5230\u4e0d\u540c\u670d\u52a1\uff0cTraefik \u5f00\u7bb1\u5373\u7528\uff0c\u4e0d\u9700\u8981\u989d\u5916\u5b89\u88c5\u3002\u5bf9\u4e8e\u9700\u8981 HTTPS \u7684\u573a\u666f\uff0cK3s \u7684 Traefik \u96c6\u6210\u4e86 cert-manager \u7684\u80fd\u529b\uff0c\u53ef\u4ee5\u5feb\u901f\u5b9e\u73b0\u81ea\u52a8\u5316\u8bc1\u4e66\u7b7e\u53d1\u3002\u5982\u679c\u4f60\u4e4b\u524d\u6709\u4f7f\u7528 Docker Compose \u591a\u670d\u52a1\u7f16\u6392<\/a> \u7684\u7ecf\u9a8c\uff0c\u8fc1\u79fb\u5230 K3s \u4f1a\u975e\u5e38\u81ea\u7136\u2014\u2014\u4e24\u8005\u7684\u7f16\u6392\u601d\u8def\u4e00\u81f4\uff0c\u53ea\u662f K3s \u63d0\u4f9b\u4e86\u66f4\u5f3a\u7684\u81ea\u6108\u548c\u8c03\u5ea6\u80fd\u529b\u3002<\/p>\n K3s \u867d\u7136\u8f7b\u91cf\uff0c\u4f46\u7528\u4e8e\u751f\u4ea7\u73af\u5883\u65f6\u4ecd\u6709\u4e00\u4e9b\u5fc5\u987b\u5173\u6ce8\u7684\u70b9\u3002\u6570\u636e\u5907\u4efd\u65b9\u9762\uff0cK3s \u9ed8\u8ba4\u4f7f\u7528 SQLite \u5b58\u50a8\u96c6\u7fa4\u72b6\u6001\uff0c\u5355 Server \u8282\u70b9\u573a\u666f\u4e0b\u591f\u7528\uff0c\u4f46\u5982\u679c\u78c1\u76d8\u6545\u969c\u6570\u636e\u5c31\u6ca1\u4e86\u3002\u751f\u4ea7\u73af\u5883\u5efa\u8bae\u5207\u6362\u5230 etcd \u6216\u5916\u90e8 MySQL\/PostgreSQL\uff0c\u5e76\u5b9a\u671f\u5907\u4efd\u6570\u636e\u76ee\u5f55\uff0c\u5907\u4efd\u9891\u7387\u5efa\u8bae\u6bcf\u5929\u4e00\u6b21\u3002<\/p>\n \u5347\u7ea7\u7b56\u7565\u65b9\u9762\uff0cK3s \u7684\u5347\u7ea7\u975e\u5e38\u65b9\u4fbf\uff0c\u53ea\u9700\u91cd\u65b0\u6267\u884c\u5b89\u88c5\u811a\u672c\u5e76\u6307\u5b9a\u65b0\u7248\u672c\u53f7\u5373\u53ef\u3002\u4f46\u8981\u6ce8\u610f\u5347\u7ea7 Server \u8282\u70b9\u65f6\u6240\u6709 Agent \u8282\u70b9\u4e0a\u7684 Pod \u4f1a\u6709\u77ed\u6682\u4e0d\u53ef\u7528\uff0c\u5efa\u8bae\u5728\u4e1a\u52a1\u4f4e\u5cf0\u671f\u64cd\u4f5c\u3002\u8d44\u6e90\u76d1\u63a7\u65b9\u9762\uff0cK3s \u672c\u8eab\u4e0d\u5e26\u5b8c\u6574\u7684\u76d1\u63a7\u6808\uff0c\u53ef\u4ee5\u901a\u8fc7 Helm \u5b89\u88c5 Prometheus + Grafana\uff0c\u4f46\u8fd9\u4f1a\u989d\u5916\u5360\u7528\u7ea6 1GB \u5185\u5b58\u3002\u8d44\u6e90\u7d27\u5f20\u7684\u573a\u666f\u53ef\u4ee5\u7528\u8f7b\u91cf\u7684 metrics-server \u914d\u5408 kubectl top \u505a\u57fa\u7840\u76d1\u63a7\u3002<\/p>\n \u90a3\u4e48\u4ec0\u4e48\u65f6\u5019\u8be5\u7528 K3s\uff0c\u4ec0\u4e48\u65f6\u5019\u8be5\u7528\u6807\u51c6 K8s\uff1f\u7b80\u5355\u6765\u8bf4\uff1a\u56e2\u961f 10 \u4eba\u4ee5\u5185\u3001\u8282\u70b9 20 \u4e2a\u4ee5\u4e0b\u3001\u4ee5\u5fae\u670d\u52a1\u548c Web \u5e94\u7528\u4e3a\u4e3b\u3001\u8fd0\u7ef4\u4eba\u529b\u6709\u9650\u7684\u573a\u666f\uff0c\u9009 K3s \u51c6\u6ca1\u9519\u3002\u8282\u70b9\u8d85\u8fc7 50 \u4e2a\u3001\u9700\u8981\u590d\u6742 RBAC \u548c\u7f51\u7edc\u7b56\u7565\u3001\u6709\u4e13\u804c SRE \u56e2\u961f\u7684\u573a\u666f\uff0c\u5efa\u8bae\u76f4\u63a5\u4e0a\u6807\u51c6 K8s\u3002\u4e5f\u53ef\u4ee5\u5148\u7528 K3s \u8dd1\u8d77\u6765\uff0c\u7b49\u89c4\u6a21\u589e\u957f\u540e\u518d\u8fc1\u79fb\u5230\u6807\u51c6 K8s\u2014\u2014\u4e24\u8005\u7684 API \u5b8c\u5168\u517c\u5bb9\uff0c\u8fc1\u79fb\u6210\u672c\u6bd4\u4ece\u88f8\u673a\u8fc1\u79fb\u4f4e\u5f97\u591a\u3002\u66f4\u591a\u5173\u4e8e\u670d\u52a1\u5668\u57fa\u7840\u8bbe\u65bd\u7684\u9009\u578b\u5efa\u8bae\uff0c\u53ef\u4ee5\u53c2\u8003 VPS \u90e8\u7f72\u4f18\u5316\u6307\u5357<\/a>\u3002<\/p>\n K3s \u7684\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e\u964d\u4f4e\u4e86\u5bb9\u5668\u7f16\u6392\u7684\u95e8\u69db\u3002\u5b83\u4e0d\u662f”\u9609\u5272\u7248 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