{"id":3509,"date":"2026-11-02T08:00:00","date_gmt":"2026-11-02T00:00:00","guid":{"rendered":"https:\/\/www.ygcloud.com\/knowledge\/?p=3509"},"modified":"2026-10-29T11:48:24","modified_gmt":"2026-10-29T03:48:24","slug":"k3s-deployment-guide","status":"publish","type":"post","link":"https:\/\/www.ygcloud.com\/knowledge\/3509\/","title":{"rendered":"k3s \u90e8\u7f72\uff1a\u5355\u8282\u70b9\u3001\u591a\u8282\u70b9\u4e0e 2 \u6838 4G \u5b9e\u6d4b"},"content":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1ak3s \u662f\u8f7b\u91cf\u7248 Kubernetes\uff0c\u5355\u8282\u70b9 2 \u6838 4G \u80fd\u8dd1\uff0c\u9002\u5408\u5c0f\u56e2\u961f\u3001\u8fb9\u7f18\u548c\u81ea\u6258\u7ba1\uff1b\u591a\u8282\u70b9\u5efa\u8bae 3 \u53f0 2 \u6838 4G \u8d77\u6b65\uff0c\u751f\u4ea7\u518d\u4e0a 4 \u6838 8G\u3002\u5b83\u7701\u6389\u4e86 K8s \u7684\u90e8\u5206\u7ec4\u4ef6\u548c\u8d44\u6e90\u5f00\u9500\uff0c\u4f46\u4e0d\u7b49\u4e8e\u201c\u96f6\u8fd0\u7ef4\u201d\uff0c\u5b58\u50a8\u3001\u7f51\u7edc\u3001\u5907\u4efd\u4ecd\u8981\u81ea\u5df1\u7ba1\u3002<\/p>\n<p>k3s \u9002\u5408\u8c01\uff1a<\/p>\n<ul>\n<li>\u60f3\u7528 K8s \u4f46\u4e0d\u60f3\u7ef4\u62a4\u91cd\u578b\u96c6\u7fa4\u7684\u5c0f\u56e2\u961f<\/li>\n<li>\u8fb9\u7f18\u8282\u70b9\u3001IoT\u3001\u95e8\u5e97\u8bbe\u5907<\/li>\n<li>\u81ea\u6258\u7ba1\u591a\u4e2a\u670d\u52a1\uff0c\u60f3\u8981\u7edf\u4e00\u7f16\u6392<\/li>\n<li>\u5b66\u4e60 K8s\uff0c\u8d44\u6e90\u6709\u9650<\/li>\n<\/ul>\n<p>\u4e0d\u9002\u5408\uff1a\u5927\u89c4\u6a21\u751f\u4ea7\u3001\u9700\u8981\u5b8c\u6574 K8s \u751f\u6001\u548c\u6258\u7ba1\u63a7\u5236\u9762\u3001\u6ca1\u6709\u5bb9\u5668\u57fa\u7840\u7684\u56e2\u961f\u3002<\/p>\n<h2 id=\"\u5355\u8282\u70b9\u5b89\u88c5\">\u5355\u8282\u70b9\u5b89\u88c5<\/h2>\n<pre><code>curl -sfL https:\/\/get.k3s.io | sh -\nsudo systemctl status k3s\nsudo k3s kubectl get nodes<\/code><\/pre>\n<p>\u5b89\u88c5\u811a\u672c\u4f1a\u628a k3s \u6ce8\u518c\u4e3a systemd \u670d\u52a1\uff0c\u9ed8\u8ba4\u5e26 Traefik ingress\u3001local-path \u5b58\u50a8\u548c metrics-server\u3002\u5355\u8282\u70b9\u9002\u5408\u6d4b\u8bd5\u548c\u5c0f\u6d41\u91cf\uff0c\u63a7\u5236\u9762\u548c\u4e1a\u52a1\u8dd1\u5728\u540c\u4e00\u53f0\uff0c\u6545\u969c\u5c31\u5168\u6302\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/152026979fd2e6d.jpg\" alt=\"\u5355\u8282\u70b9 k3s \u670d\u52a1\u5668\u8fd0\u884c\u5bb9\u5668\" class=\"wp-image-3506\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/152026979fd2e6d.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/152026979fd2e6d-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/152026979fd2e6d-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/152026979fd2e6d-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u5355\u8282\u70b9\u9002\u5408\u6d4b\u8bd5\u548c\u5c0f\u6d41\u91cf\uff0c\u63a7\u5236\u9762\u4e0e\u4e1a\u52a1\u540c\u673a\u3002<\/figcaption><\/figure>\n<h2 id=\"\u591a\u8282\u70b9\u600e\u4e48\u52a0\">\u591a\u8282\u70b9\u600e\u4e48\u52a0<\/h2>\n<p>\u7b2c\u4e00\u53f0\u4f5c\u4e3a server\uff0c\u62ff\u5230 token\uff1b\u5176\u4ed6 server \u7528 <code>K3S_TOKEN<\/code> \u52a0\u5165\uff0cagent \u4e5f\u7c7b\u4f3c\uff1a<\/p>\n<pre><code># server \u8282\u70b9\ncurl -sfL https:\/\/get.k3s.io | K3S_TOKEN=\u4f60\u7684token sh -s - server \\\n  --tls-san \u4f60\u7684\u57df\u540d\u6216IP\n\n# agent \u8282\u70b9\ncurl -sfL https:\/\/get.k3s.io | K3S_URL=https:\/\/server:6443 \\\n  K3S_TOKEN=\u4f60\u7684token sh -<\/code><\/pre>\n<p>\u751f\u4ea7\u5efa\u8bae 3 \u53f0 server \u505a\u9ad8\u53ef\u7528\uff0cagent \u6309\u4e1a\u52a1\u52a0\u3002server \u4e4b\u95f4\u9700\u8981 6443 \u4e92\u901a\uff0cagent \u9700\u8981 6443 \u548c 8472\uff08flannel\uff09\u7b49\u7aef\u53e3\uff0c\u5b89\u5168\u7ec4\u63d0\u524d\u653e\u884c\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/8a8c8cb564de81e.jpg\" alt=\"server \u4e0e agent \u8282\u70b9\u901a\u8fc7 token \u52a0\u5165\u96c6\u7fa4\" class=\"wp-image-3507\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/8a8c8cb564de81e.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/8a8c8cb564de81e-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/8a8c8cb564de81e-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/8a8c8cb564de81e-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u591a\u8282\u70b9\u8981\u653e\u884c 6443 \u548c 8472\uff0c\u5148\u6d4b\u7f51\u7edc\u518d\u6269\u5bb9\u3002<\/figcaption><\/figure>\n<h2 id=\"\u7f51\u7edc\u548c\u9632\u706b\u5899\">\u7f51\u7edc\u548c\u9632\u706b\u5899<\/h2>\n<ul>\n<li>6443\uff1aK8s API<\/li>\n<li>8472\/UDP\uff1aflannel VXLAN<\/li>\n<li>10250\uff1akubelet<\/li>\n<li>80\/443\uff1aingress<\/li>\n<\/ul>\n<p>\u4e91\u5b89\u5168\u7ec4\u53ea\u653e\u9700\u8981\u7684\u6765\u6e90\uff0c\u522b\u628a 6443 \u5f00\u5230\u516c\u7f51\u3002\u591a\u8282\u70b9\u8de8\u673a\u623f\u65f6\uff0cflannel \u7684 MTU \u548c\u5ef6\u8fdf\u8981\u6d4b\uff0c\u5fc5\u8981\u65f6\u6362\u7f51\u7edc\u63d2\u4ef6\u3002<\/p>\n<h2 id=\"\u5b58\u50a8\">\u5b58\u50a8<\/h2>\n<p>k3s \u81ea\u5e26 local-path provisioner\uff0cPV \u843d\u5728\u8282\u70b9\u672c\u5730\u76d8\uff0cPod \u6f02\u79fb\u540e\u6570\u636e\u4e0d\u8ddf\u7740\u8d70\u3002\u5355\u8282\u70b9\u591f\u7528\uff1b\u591a\u8282\u70b9\u8981\u6301\u4e45\u5316\uff0c\u5efa\u8bae\u63a5 NFS\u3001Longhorn \u6216\u4e91\u76d8 CSI\u3002<\/p>\n<pre><code>kubectl get storageclass\nkubectl get pvc -A<\/code><\/pre>\n<h2 id=\"\u90e8\u7f72\u4e00\u4e2a\u5e94\u7528\">\u90e8\u7f72\u4e00\u4e2a\u5e94\u7528<\/h2>\n<pre><code>kubectl create deployment web --image=nginx:alpine --replicas=2\nkubectl expose deployment web --port=80 --type=ClusterIP\nkubectl get pods,svc<\/code><\/pre>\n<p>\u751f\u4ea7\u7528 YAML \u7ba1\u7406\uff0c\u522b\u53ea\u7528 kubectl \u547d\u4ee4\uff1b\u955c\u50cf\u6253\u56fa\u5b9a tag\uff0c\u914d resources requests\/limits\uff0c\u907f\u514d\u4e00\u4e2a Pod \u5403\u6ee1\u8282\u70b9\u3002<\/p>\n<h2 id=\"\u66b4\u9732\u670d\u52a1\">\u66b4\u9732\u670d\u52a1<\/h2>\n<p>k3s \u9ed8\u8ba4\u5e26 Traefik\uff0c\u7528 Ingress \u66b4\u9732\u57df\u540d\uff1b\u6ca1\u6709\u57df\u540d\u53ef\u4ee5\u5148\u7528 NodePort \u6d4b\u8bd5\u3002HTTPS \u7528 cert-manager \u6216 Traefik \u7684\u8bc1\u4e66\u914d\u7f6e\u3002<\/p>\n<pre><code>apiVersion: networking.k8s.io\/v1\nkind: Ingress\nmetadata:\n  name: web\nspec:\n  rules:\n    - host: app.example.com\n      http:\n        paths:\n          - path: \/\n            pathType: Prefix\n            backend:\n              service:\n                name: web\n                port:\n                  number: 80<\/code><\/pre>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fdbc5a6b6d42bc8.jpg\" alt=\"Ingress \u5c06\u6d41\u91cf\u8def\u7531\u5230 Pod\uff0c\u5e76\u6302\u8f7d\u5b58\u50a8\u5377\" class=\"wp-image-3508\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fdbc5a6b6d42bc8.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fdbc5a6b6d42bc8-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fdbc5a6b6d42bc8-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/fdbc5a6b6d42bc8-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>Traefik \u9ed8\u8ba4\u591f\u7528\uff0c\u6301\u4e45\u5316\u8981\u53e6\u63a5\u5b58\u50a8\u3002<\/figcaption><\/figure>\n<h2 id=\"\u5907\u4efd\u548c\u5347\u7ea7\">\u5907\u4efd\u548c\u5347\u7ea7<\/h2>\n<p>\u5907\u4efd etcd \u6216 k3s \u7684 datastore\uff0c\u5907\u4efd PVC \u6570\u636e\uff0c\u8bb0\u5f55 YAML \u548c\u955c\u50cf\u7248\u672c\u3002\u5347\u7ea7\u524d\u5148\u770b release notes\uff0c\u6d4b\u8bd5\u73af\u5883\u8dd1\u4e00\u904d\uff1b\u5355\u8282\u70b9\u5347\u7ea7\u4f1a\u77ed\u6682\u4e2d\u65ad\u3002<\/p>\n<pre><code># \u5355\u8282\u70b9\u9ed8\u8ba4 sqlite\uff0c\u5907\u4efd \/var\/lib\/rancher\/k3s\/server\/db\nsudo tar czf k3s-db-backup.tgz \/var\/lib\/rancher\/k3s\/server\/db<\/code><\/pre>\n<h2 id=\"\u5e38\u89c1\u5751\">\u5e38\u89c1\u5751<\/h2>\n<ul>\n<li>\u5b89\u5168\u7ec4\u6ca1\u653e 8472\uff0c\u8282\u70b9\u52a0\u4e0d\u8fdb\u6765<\/li>\n<li>local-path \u6570\u636e\u4e0d\u8de8\u8282\u70b9\uff0cPod \u6f02\u79fb\u4e22\u6570\u636e<\/li>\n<li>\u6ca1\u8bbe resources\uff0cPod \u628a\u8282\u70b9\u6253\u6ee1<\/li>\n<li>\u5355\u8282\u70b9\u5f53\u751f\u4ea7\uff0c\u63a7\u5236\u9762\u548c\u4e1a\u52a1\u4e00\u8d77\u6302<\/li>\n<li>\u955c\u50cf\u7528 latest\uff0c\u56de\u6eda\u56f0\u96be<\/li>\n<li>\u6ca1\u5907\u4efd datastore\uff0c\u96c6\u7fa4\u574f\u4e86\u91cd\u5efa<\/li>\n<\/ul>\n<h2 id=\"\u8d44\u6e90\u89c4\u5212\">\u8d44\u6e90\u89c4\u5212<\/h2>\n<p>k3s \u81ea\u8eab\u5360\u51e0\u767e MB\uff0c\u5269\u4e0b\u7ed9\u7cfb\u7edf Pod \u548c\u4e1a\u52a1\uff1b\u6bcf\u4e2a Pod \u8bbe requests\/limits\uff0c\u522b\u8ba9\u4e00\u4e2a\u5e94\u7528\u5403\u6ee1\u8282\u70b9\u30022 \u6838 4G \u5efa\u8bae\u53ea\u8dd1\u8f7b\u91cf\u670d\u52a1\u3002<\/p>\n<h2 id=\"\u76d1\u63a7\">\u76d1\u63a7<\/h2>\n<p>\u7528 metrics-server \u770b\u8d44\u6e90\uff0cPrometheus \u770b\u96c6\u7fa4\u548c\u4e1a\u52a1\uff1b\u8282\u70b9 NotReady\u3001Pod \u91cd\u542f\u3001\u78c1\u76d8\u538b\u529b\u90fd\u8981\u544a\u8b66\u3002<\/p>\n<p>\u8d44\u6e90\u3001\u5b58\u50a8\u3001\u7f51\u7edc\u3001\u5907\u4efd\u56db\u4ef6\u4e8b\u505a\u597d\uff0ck3s \u624d\u7a33\u3002<\/p>\n<p>\u522b\u628a\u201c\u80fd\u88c5\u201d\u5f53\u6210\u201c\u80fd\u751f\u4ea7\u201d\uff0c\u5148\u5c0f\u89c4\u6a21\u9a8c\u8bc1\u518d\u653e\u91cf\u3002<\/p>\n<p>\u5c0f\u89c4\u6a21\u9a8c\u8bc1\uff0c\u9010\u6b65\u653e\u91cf\uff0c\u662f\u6700\u7a33\u7684\u8def\u5f84\uff0c\u597d\u3002<\/p>\n<h2 id=\"\u5e38\u89c1\u95ee\u9898-faq\">\u5e38\u89c1\u95ee\u9898 FAQ<\/h2>\n<p><strong>Q1\uff1a2 \u6838 4G \u80fd\u8dd1 k3s \u5417\uff1f<\/strong><\/p>\n<p>\u80fd\u8dd1\u5355\u8282\u70b9\u548c\u51e0\u4e2a\u5c0f Pod\uff0c\u7cfb\u7edf\u672c\u8eab\u5360\u51e0\u767e MB\uff1b\u8dd1\u6570\u636e\u5e93\u3001\u76d1\u63a7\u3001\u591a\u4e2a\u5e94\u7528\u4f1a\u7d27\uff0c\u5efa\u8bae 4 \u6838 8G\u3002<\/p>\n<p><strong>Q2\uff1ak3s \u548c K8s \u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong><\/p>\n<p>k3s \u662f CNCF \u8ba4\u8bc1\u7684\u8f7b\u91cf\u53d1\u884c\u7248\uff0c\u53bb\u6389\u4e91\u5382\u5546\u63d2\u4ef6\u3001\u7528 sqlite \u9ed8\u8ba4\u5b58\u50a8\u3001\u6253\u5305\u5e38\u7528\u7ec4\u4ef6\uff0c\u8d44\u6e90\u5360\u7528\u66f4\u5c0f\u3002<\/p>\n<p><strong>Q3\uff1a\u5355\u8282\u70b9\u591f\u7528\u5417\uff1f<\/strong><\/p>\n<p>\u6d4b\u8bd5\u3001\u5c0f\u6d41\u91cf\u3001\u8fb9\u7f18\u591f\u7528\uff1b\u751f\u4ea7\u8981\u63a7\u5236\u9762\u9ad8\u53ef\u7528\uff0c\u81f3\u5c11 3 \u53f0 server\uff0c\u4e1a\u52a1\u591a\u526f\u672c\u3002<\/p>\n<p><strong>Q4\uff1a\u6570\u636e\u600e\u4e48\u6301\u4e45\u5316\uff1f<\/strong><\/p>\n<p>\u5355\u8282\u70b9\u7528 local-path\uff0c\u591a\u8282\u70b9\u63a5 NFS\/Longhorn\/\u4e91\u76d8 CSI\uff1b\u6570\u636e\u5e93\u5efa\u8bae\u7528\u72ec\u7acb\u670d\u52a1\u6216 Operator\uff0c\u522b\u53ea\u9760\u672c\u5730\u76d8\u3002<\/p>\n<p><strong>Q5\uff1a\u9700\u8981 Traefik \u5417\uff1f<\/strong><\/p>\n<p>k3s \u9ed8\u8ba4\u5e26\uff0c\u591f\u7528\uff1b\u8981\u66f4\u7075\u6d3b\u7684\u7f51\u5173\u53ef\u4ee5\u6362\u6210 Nginx Ingress \u6216 APISIX\u3002<\/p>\n<h2 id=\"\u603b\u7ed3\">\u603b\u7ed3<\/h2>\n<p>k3s \u9002\u5408\u201c\u60f3\u7528 K8s \u4f46\u8d44\u6e90\u6709\u9650\u201d\u7684\u573a\u666f\uff1a\u5355\u8282\u70b9 2 \u6838 4G \u8d77\u6b65\uff0c\u591a\u8282\u70b9 3 \u53f0\u8d77\uff0c\u751f\u4ea7\u52a0\u8d44\u6e90\u548c\u5907\u4efd\u3002\u5b58\u50a8\u3001\u7f51\u7edc\u3001\u5b89\u5168\u7ec4\u3001\u5907\u4efd\u662f\u91cd\u70b9\uff0c\u522b\u628a\u5b83\u5f53\u96f6\u8fd0\u7ef4\u3002<\/p>\n<p>\u9700\u8981\u51e0\u53f0\u673a\u5668\u642d k3s \u6d4b\u8bd5\u96c6\u7fa4\uff0c\u53ef\u4ee5\u6309\u5c0f\u65f6\u5f00<a href=\"https:\/\/www.ygcloud.com\/vps\/hong-kong-cn2-vps\">\u8424\u5149\u4e91\u9999\u6e2f CN2 VPS<\/a>\uff0c\u5148\u8dd1\u901a\u5355\u8282\u70b9\u518d\u52a0 agent\u3002<\/p>\n<h2 id=\"\u76f8\u5173\u63a8\u8350\">\u76f8\u5173\u63a8\u8350<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/1951\/\">Docker \u90e8\u7f72\u5e94\u7528\u9700\u8981\u591a\u5927 VPS \u914d\u7f6e\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3359\/\">\u4e91\u670d\u52a1\u5668\u8d1f\u8f7d\u5747\u8861\u600e\u4e48\u642d\uff1fNginx\u3001HAProxy \u4e0e\u5065\u5eb7\u68c0\u67e5<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3329\/\">AI Agent \u670d\u52a1\u5668\u600e\u4e48\u9009\uff1f2 \u6838 4G \u591f\u4e0d\u591f<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3249\/\">VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1f\u600e\u4e48\u5224\u65ad\u4fbf\u5b9c VPS \u6709\u6ca1\u6709\u8d85\u552e<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/888\/\">VPS \u5b89\u5168\u8bbe\u7f6e\u6307\u5357\uff1a\u65b0\u670d\u52a1\u5668\u4e0a\u7ebf\u524d\u7684 12 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