{"id":1262,"date":"2022-04-08T10:45:45","date_gmt":"2022-04-08T02:45:45","guid":{"rendered":"https:\/\/www.buyao007.icu\/?p=1262"},"modified":"2022-04-25T10:38:03","modified_gmt":"2022-04-25T02:38:03","slug":"3-k8s%e7%9a%84%e9%99%84%e4%bb%b6%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.buyao007.icu\/?p=1262","title":{"rendered":"3.k8s\u7684\u9644\u4ef6\u7ec4\u4ef6"},"content":{"rendered":"\n

\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6\u7fa4\u67b6\u6784\u4e0e\u81ea\u52a8\u5316\u8fd0\u7ef4\uff0c\u66fe\u8d1f\u8d23\u56fd\u5185\u67d0\u5927\u578b\u535a\u5ba2\u7f51\u7ad9\u8fd0\u7ef4\u5de5\u4f5c\u3002<\/p>\n\n\n\n

1.dns\u670d\u52a1<\/h2>\n\n\n\n

1.DNS\u670d\u52a1\u7ec4\u4ef6\u6982\u8ff0<\/em><\/strong><\/p>\n\n\n\n

K8S\u96c6\u7fa4\u4e2dDNS\u670d\u52a1\u7684\u4f5c\u7528\u5c31\u662f\u5c06svc\u7684\u540d\u79f0\u89e3\u6790\u6210\u5bf9\u5e94\u7684VIP\u5730\u5740\u3002\r\n\u5728kubernetes\u65e9\u671f\u7248\u672c\u4e2d\uff0c\u6bd4\u5982k8s1.5\u7248\u672c\u4e2d\u4f7f\u7528\u7684\u662fSkyDNS\u7ec4\u4ef6\u6765\u8fdb\u884c\u89e3\u6790\uff0c\u672c\u6848\u4f8b\u4e5f\u5c06\u91c7\u7528\u8be5\u7248\u672c\u8fdb\u884c\u89e3\u6790\u54df\u3002\u4f46\u5728\u8f83\u65b0\u7684k8s\u7248\u672c\u4e2d\uff0cCoreDNS\u5df2\u7ecf\u66ff\u4ee3\u4e86SkyDNS\u7ec4\u4ef6\uff0c\u7531\u4e8eCoreDNS\u7ec4\u4ef6\u5f97\u5929\u72ec\u539a\u7684\u4f18\u52bf\u5bf9\u4e8eSkyDNS\u800c\u8a00\u7b80\u76f4\u662f\u964d\u7ef4\u6253\u51fb\uff0c\u611f\u5174\u8da3\u7684\u5c0f\u4f19\u4f34\u53ef\u4ee5\u81ea\u884c\u67e5\u9605\u76f8\u5173\u8d44\u6599\u8fdb\u884c\u5bf9\u6bd4\u3002\r\n\u5728kubernetes 1.9\u7248\u672c\u4e2d\uff0c\u4f7f\u7528kubeadm\u65b9\u5f0f\u5b89\u88c5\u7684\u96c6\u7fa4\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u76f4\u63a5\u5b89\u88c5CoreDNS\u3002\u5373\"kubeadm init  --feature-getas=CoreDNS=true\"\u3002\r\n\u4ecekubernetes1.12\u5f00\u59cb\uff0cCoreDNS\u5c31\u6210\u4e3akubernetes\u7684\u9ed8\u8ba4DNS\u670d\u52a1\u5668\uff0c\u4f46\u662fkubeadm\u9ed8\u8ba4\u5b89\u88c5CoreDNS\u7684\u65f6\u95f4\u66f4\u65e9\u3002\r\n\u63a8\u8350\u9605\u8bfb:\r\nhttps://github.com\/kubernetes\/kubernetes\/tree\/master\/cluster\/addons\/dns\/coredns\r<\/code><\/pre>\n\n\n\n
2.DNS\u670d\u52a1\u7ec4\u4ef6\u5b89\u88c5<\/em><\/strong><\/p>\n\n\n\n
\u4e0b\u8f7d\u955c\u50cf\u7ec4\u4ef6<\/p>\n\n\n\n
[root@k8s-node-1 ~]# wget www.buyao007.icu\/sfy-docker-skydns.tar.gz\r\n[root@k8s-node-2 ~]# docker load -i sfy-docker-skydns.tar.gz\r\n[root@k8s-master dns]# wget www.buyao007.icu\/skydns-yaml.tar.gz\r\n[root@k8s-master dns]# tar xf skydns-yaml.tar.gz\r<\/code><\/pre>\n\n\n\n
\u4fee\u6539\u5b98\u65b9\u7684yaml\u6587\u4ef6<\/p>\n\n\n\n
[root@k8s-master dns]# vim 01-skydns.yaml\r\n\u00b7\u00b7\u00b7\r\n    spec:\r\n      nodeName: k8s102.com  # \u8ba9\u5bb9\u5668\u6307\u5b9a\u8c03\u5ea6\u5230\u67d0\u4e00\u4e2a\u8282\u70b9\u3002\r\n      containers:\r\n      \u00b7\u00b7\u00b7\r\n        args:\r\n\u00b7\u00b7\u00b7\r\n# \u6307\u5b9aApiServer\u7684\u5730\u5740,\u8bf7\u4e00\u5b9a\u8981\u6307\u5b9aIP\u5730\u5740,\u4e0d\u8981\u6307\u5b9a\u4e3b\u673a\u540d,\u56e0\u4e3a\u5bb9\u5668\u7684\"\/etc\/hosts\"\u5e76\u672a\u89e3\u6790!\r\n        - --kube-master-url=http:\/\/10.0.0.110:8080\r\nskydns\u7684\u5de5\u4f5c\u539f\u7406:\r\nPod\u5982\u679c\u9700\u8981\u89e3\u6790\u57df\u540d\u65f6\u4f1a\u627eDNS\u7ec4\u4ef6\u8fdb\u884c\u89e3\u6790\uff0c\u5982\u679cDNS\u6709\u8bb0\u5f55\u5219\u4f1a\u76f4\u63a5\u8fd4\u56de\u7ed9Pod\u76f8\u5e94\u7684\u6620\u5c04\u5173\u7cfb\u3002\u5982\u679cDNS\u672c\u5730\u89e3\u6790\u5e76\u6ca1\u6709\u8bb0\u5f55\uff0c\u5219DNS\u7ec4\u4ef6\u4f1a\u5411ApiServer\u53d1\u8d77\u67e5\u8be2\u8bf7\u6c42\uff0c\u8bf7\u6c42\u5bf9\u5e94SVC\u66b4\u9732\u7684IP\u5730\u5740\u4e0e\u5bf9\u5e94Pod\u7684\u5173\u8054\u5173\u7cfb\r\n[root@k8s-master dns]# vim 02-skydns-svc.yaml\r\n...\r\nspec:\r\n  ...\r\n  clusterIP: 10.254.254.254\r\n\r\n\u6e29\u99a8\u63d0\u793a:\r\n\u4fee\u6539SVC\u7684IP\u5730\u5740\u672c\u8d28\u4e0a\u4fee\u6539\u662f\u540e\u671f\u66b4\u9732\u7684DNS\u5730\u5740<\/code><\/pre>\n\n\n\n
\u8fd0\u884cDNS\u7684\u76f8\u5173Pod\uff0c\u89c2\u5bdf\u662f\u5426\u8c03\u5ea6\u5230\u6307\u5b9a\u7684\u8282\u70b9<\/p>\n\n\n\n
[root@k8s-master dns]# kubectl apply -f .\r\n[root@k8s-master dns]# kubectl get pod -o wide -n kube-system\r\n[root@k8s-master dns]# kubectl get svc -o wide -n kube-system\r\n\u53ef\u4ee5\u770b\u5230\u521b\u5efa\u4e86\u6307\u5b9a\u7684svc\uff0cpod\u4e5f\u88ab\u8c03\u5ea6\u5230\u4e86\u6307\u5b9a\u8282\u70b9\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u4fee\u6539kubelet\uff0c\u6307\u5b9a\u81ea\u5b9a\u4e49\u7684DNS\u5730\u5740<\/p>\n\n\n\n
vim \/etc\/kubernetes\/kubelet\r\n...\r\n# \u6307\u5b9a\u96c6\u7fa4\u7684DNS\u5730\u5740\u53ca\u57df\u540d\u4fe1\u606f\uff0c\u6240\u8c13\u7684DNS\u5730\u5740\u6307\u7684\u5c31\u662fDNS\u7684Pod\u5176SVC\u66b4\u9732\u7684CLUSTER-IP\u5730\u5740\u54df~\r\nKUBELET_ARGS=\"--cluster_dns=10.254.254.254 --cluster_domain=cluster.local\"\r\n[root@k8s-node-1 ~]# systemctl restart kubelet.service\r<\/code><\/pre>\n\n\n\n
3.\u9a8c\u8bc1DNS\u670d\u52a1\u662f\u5426\u6b63\u5e38<\/em><\/strong><\/p>\n\n\n\n
\u6ce8\u610f\u5728\u89e3\u6790svc\u57df\u540d\u7684\u65f6\u5019\uff0c\u76f8\u540c\u547d\u540d\u7a7a\u95f4\u7684\u53ef\u4ee5\u76f4\u63a5\u5199svc\u7684\u540d\u5b57\uff0c\u4e0d\u540c\u547d\u540d\u7a7a\u95f4\u8981\u5199<svc-name>.<svc-namespace-name>.svc.cluster.local\r\n\u540c\u65f6\u56e0\u4e3anamespace\u9694\u79bb\u6027\uff0csvc\u548c\u540e\u7aef\u4ee3\u7406\u7684\u8282\u70b9\u5e94\u8be5\u5728\u4e00\u4e2anamespace\u7a7a\u95f4\r\n[root@k8s-master deployment]# cat deploy-wordpress2.yaml \r\napiVersion: extensions\/v1beta1\r\nkind: Deployment\r\nmetadata:\r\n  name: mysql\r\n  namespace: kube-system\r\nspec:\r\n  replicas: 1\r\n  template:\r\n    metadata:\r\n      labels:\r\n        app: mysql\r\n    spec:\r\n      containers:\r\n      - name: mysql\r\n        image: k8s-master:5000\/mysql:5.7\r\n        ports:\r\n        - containerPort: 3306\r\n        env:\r\n        - name: MYSQL_ROOT_PASSWORD\r\n          value: somewordpress\r\n        - name: MYSQL_DATABASE\r\n          value: wordpress\r\n        - name: MYSQL_USER\r\n          value: wordpress\r\n        - name: MYSQL_PASSWORD\r\n          value: wordpress\r\n---\r\n\r\napiVersion: v1\r\nkind: Service   #\u7b80\u79f0svc\r\nmetadata:\r\n  name: musql-svc\r\n  namespace: kube-system\r\nspec:\r\n  clusterIP: 10.254.86.101\r\n  type: ClusterIP\r\n  ports:\r\n    - port: 3306\r\n      targetPort: 3306    #pod port\r\n  selector:\r\n    app: mysql\r\n\r\n---\r\napiVersion: extensions\/v1beta1\r\nkind: Deployment\r\nmetadata:\r\n  name: wordpress\r\nspec:\r\n  replicas: 1\r\n  template:\r\n    metadata:\r\n      labels:\r\n        app: wordpress\r\n    spec:\r\n      containers:\r\n      - name: wordpress\r\n        image: k8s-master:5000\/wordpress:latest\r\n        ports:\r\n        - containerPort: 80\r\n        env:\r\n        - name: WORDPRESS_DB_HOST\r\n          value: musql-svc.kube-system.svc.cluster.local<\/strong> ###\u8fd9\u91cc\u5199\u7684svc\u7684\u57df\u540d\r\n        - name: WORDPRESS_DB_USER\r\n          value: wordpress\r\n        - name: WORDPRESS_DB_PASSWORD\r\n          value: wordpress\r\n---\r\n\r\napiVersion: v1\r\nkind: Service   #\u7b80\u79f0svc\r\nmetadata:\r\n  name: wordpress-svc\r\nspec: \r\n  type: NodePort\r\n  ports:\r\n    - port: 80\r\n      nodePort: 31001\r\n      targetPort: 80   #pod port\r\n  selector:\r\n    app: wordpress\r<\/code><\/pre>\n\n\n\n
2.namespace\u547d\u540d\u7a7a\u95f4<\/h2>\n\n\n\n
1.namespace\u7684\u4f5c\u7528<\/em><\/strong><\/p>\n\n\n\n
\u5728K8S\u96c6\u7fa4\u4e2d\uff0c\u4e00\u5207\u7686\u8d44\u6e90\u3002\u800cnamespace\u7684\u4f5c\u7528\u4e3b\u8981\u662f\u505a\u8d44\u6e90\u9694\u79bb\u7684\u3002\r\n\u82e5\u4e0d\u4e3a\u8d44\u6e90\u6307\u5b9a\u540d\u79f0\u7a7a\u95f4\uff0c\u5219\u9ed8\u8ba4\u4f7f\u7528\u7684\u662f\"default\"\u8d44\u6e90\u3002\r\n\u4e00\u65e6\u6709\u4e86namespace\u6211\u4eec\u5c31\u53ef\u4ee5\u5bf9\u8d44\u6e90\u8fdb\u884c\u5206\u95e8\u522b\u7c7b\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5728\u540c\u4e00\u4e2a\u540d\u79f0\u7a7a\u95f4\u7684\u540c\u4e00\u79cd\u8d44\u6e90\u7c7b\u578b\u662f\u4e0d\u80fd\u91cd\u540d\u7684\uff0c\u4f46\u4e0d\u540c\u7684\u540d\u79f0\u7a7a\u95f4\u662f\u53ef\u4ee5\u51fa\u73b0\u540c\u540d\u7684\u8d44\u6e90\u7c7b\u578b\u54df\r\n\u5220\u9664\u4e00\u4e2anamespace\u65f6\uff0c\u8fd9\u610f\u5473\u7740\u8be5\u540d\u79f0\u7a7a\u95f4\u4e0b\u7684\u6240\u6709\u8d44\u6e90\u90fd\u5c06\u88ab\u5220\u9664\uff0c\u751f\u4ea7\u73af\u5883\u4e2d\u8bf7\u8c28\u614e\u4f7f\u7528\r<\/code><\/pre>\n\n\n\n
2.\u521b\u5efanamespace\u8d44\u6e90<\/em><\/strong><\/p>\n\n\n\n
###\u57fa\u4e8e\u547d\u4ee4\u884c\u521b\u5efa\r\n[root@k8s-master ~]# kubectl create namespace sfy\r\n###\u57fa\u4e8eyaml\u7f16\u5199\u8d44\u6e90\u6e05\u5355\r\n[root@k8s-master namespace]# vim sfy-namespace.yaml\r\napiVersion: v1\r\nkind: Namespace\r\nmetadata:\r\n  name: sfy1\r\n[root@k8s-master namespace]# kubectl apply -f sfy-namespace.yaml\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
3.\u5065\u5eb7\u68c0\u67e5\u548c\u53ef\u7528\u6027\u68c0\u67e5\u63a2\u9488(Probe)<\/h2>\n\n\n\n
1.\u63a2\u9488\u7684\u79cd\u7c7b\u548c\u4f5c\u7528<\/em><\/strong><\/p>\n\n\n\n
livenessProbe\uff1a\u5065\u5eb7\u72b6\u6001\u68c0\u67e5\uff0c\u5468\u671f\u6027\u68c0\u67e5\u670d\u52a1\u662f\u5426\u5b58\u6d3b\uff0c\u68c0\u67e5\u7ed3\u679c\u5931\u8d25\uff0c\u5c06\u91cd\u542f\u5bb9\u5668\r\nreadinessProbe\uff1a\u53ef\u7528\u6027\u68c0\u67e5\uff0c\u5468\u671f\u6027\u68c0\u67e5\u670d\u52a1\u662f\u5426\u53ef\u7528\uff0c\u4e0d\u53ef\u7528\u5c06\u4eceservice\u7684endpoints\u4e2d\u79fb\u9664\r<\/code><\/pre>\n\n\n\n
2.\u63a2\u9488\u7684\u68c0\u6d4b\u65b9\u6cd5<\/em><\/strong><\/p>\n\n\n\n
exec\uff1a\u6267\u884c\u4e00\u6bb5\u547d\u4ee4 \u8fd4\u56de\u503c\u4e3a0, \u975e0\r\nhttpGet\uff1a\u68c0\u6d4b\u67d0\u4e2a http \u8bf7\u6c42\u7684\u8fd4\u56de\u72b6\u6001\u7801 2xx,3xx\u6b63\u5e38, 4xx,5xx\u9519\u8bef\r\ntcpSocket\uff1a\u6d4b\u8bd5\u67d0\u4e2a\u7aef\u53e3\u662f\u5426\u80fd\u591f\u8fde\u63a5\r<\/code><\/pre>\n\n\n\n
3.liveness\u63a2\u9488\u7684exec\u4f7f\u7528<\/em><\/strong><\/p>\n\n\n\n
[root@k8s-master k8s_yaml]# mkdir check\r\n[root@k8s-master k8s_yaml]# cd check\/\r\n[root@k8s-master check]# cat nginx_pod_exec.yaml\r\napiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: exec\r\nspec:\r\n  containers:\r\n    - name: nginx\r\n      image: k8s-master:5000\/sunfuyang\/nginx:1.13\r\n      ports:\r\n        - containerPort: 80\r\n      args:\r\n        - \/bin\/sh\r\n        - -c\r\n        - touch \/tmp\/healthy; sleep 30; rm -rf \/tmp\/healthy; sleep 600\r\n      livenessProbe:  # \u5b9a\u4e49\u5065\u5eb7\u68c0\u67e5\u63a2\u9488\r\n        exec:  # \u6307\u5b9a\u63a2\u9488\u7684\u68c0\u6d4b\u65b9\u6cd5\u4e3aexec\r\n          command:   # \u6307\u5b9aexec\u8981\u6267\u884c\u7684\u547d\u4ee4\r\n            - cat\r\n            - \/tmp\/healthy\r\n        initialDelaySeconds: 5   # \u6307\u5b9a\u7b2c\u4e00\u6b21\u8fdb\u884c\u5065\u5eb7\u68c0\u67e5\u7684\u79d2\u6570\uff0c\u8be5\u503c\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u5e94\u8be5\u786e\u4fdd\u8fd9\u4e2a\u5ef6\u8fdf\u65f6\u95f4\u5185\u5bb9\u5668\u53ef\u4ee5\u6b63\u5e38\u542f\u52a8\u8fd0\u884c\r\n        periodSeconds: 10  # \u6307\u5b9a\u6bcf\u6b21\u5468\u671f\u7684\u5065\u5eb7\u68c0\u67e5\u7684\u95f4\u9694\u65f6\u95f4\r\n        timeoutSeconds: 5  # \u6307\u5b9a\u6267\u884cexec\u5b9a\u4e49\u547d\u4ee4\u7684\u8d85\u65f6\u7684\u79d2\u6570\r\n        successThreshold: 1  # \u68c0\u67e51\u6b21\u6210\u529f\u5c31\u8ba4\u4e3a\u670d\u52a1\u662f\u5065\u5eb7\u7684\r\n        failureThreshold: 3  # \u68c0\u67e5\u8fde\u7eed3\u6b21\u5931\u8d25\u5c31\u8ba4\u4e3a\u670d\u52a1\u662f\u4e0d\u5065\u5eb7\u7684\r\n[root@k8s-master check]# kubectl create -f nginx_pod_exec.yaml\r\n\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7describe\u67e5\u770bpod\u68c0\u67e5\u5931\u8d25\u91cd\u542f\u4e86\u4e00\u6b21\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
4.liveness\u63a2\u9488\u7684httpGet\u4f7f\u7528<\/em><\/strong><\/p>\n\n\n\n
[root@k8s-master check]# cat nginx_pod_httpGet.yaml\r\napiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: httpget\r\nspec:\r\n  containers:\r\n    - name: nginx\r\n      image: k8s-master:5000\/sunfuyang\/nginx:1.13\r\n      ports:\r\n        - containerPort: 80\r\n      livenessProbe:\r\n        httpGet:\r\n          path: \/index.html\r\n          port: 80\r\n        initialDelaySeconds: 3\r\n        periodSeconds: 3\r\n[root@k8s-master check]# kubectl create -f nginx_pod_httpGet.yaml\r\n[root@k8s-master check]# kubectl exec -it httpget bash\r\nroot@httpget:\/# rm -f \/usr\/share\/nginx\/html\/index.html\r\nroot@httpget:\/# exit\r\n\u53ef\u4ee5\u770b\u5230\u5f53\u8fdb\u5165\u5bb9\u5668\u5220\u6389\u68c0\u67e5\u7684\u6587\u4ef6\u65f6\uff0c\u5bb9\u5668\u91cd\u542f\u4e86\u4e00\u6b21\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
5.liveness\u63a2\u9488\u7684tcpSocket\u4f7f\u7528<\/em><\/strong><\/p>\n\n\n\n
[root@k8s-master check]# cat nginx_pod_tcpSocket.yaml\r\napiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: tcpsocket\r\nspec:\r\n  containers:\r\n    - name: nginx\r\n      image: k8s-master:5000\/sunfuyang\/nginx:1.13\r\n      ports:\r\n        - containerPort: 80\r\n      args:\r\n        - \/bin\/sh\r\n        - -c\r\n        - tail -f \/etc\/hosts\r\n      livenessProbe:\r\n        tcpSocket:\r\n          port: 80\r\n        initialDelaySeconds: 10\r\n        periodSeconds: 3\r\n[root@k8s-master check]# kubectl create -f nginx_pod_tcpSocket.yaml\r\n\u5f88\u660e\u663e\uff0c\u66b4\u9732\u4e8680\u7aef\u53e3\uff0c\u53ef\u662f\u542f\u52a8\u5bb9\u5668\u65f6\u5e76\u6ca1\u6709\u542f\u52a8nginx\uff0c\u800c\u662f\u53bb\u4f7f\u7528tail\u6307\u4ee4\u53bb\u67e5\u770b\u4e00\u4e2a\u6587\u4ef6\u5185\u5bb9\u8fbe\u5230\u963b\u585e\u5bb9\u5668\u7684\u76ee\u7684\uff0c\u56e0\u6b64\u5728\u5bb9\u5668\u542f\u52a810\u540e\u5c31\u5f00\u59cb\u7b2c\u4e00\u6b21\u68c0\u67e5\uff0c\u800c\u540e\u6bcf\u4e2a3\u79d2\u68c0\u67e51\u6b21\uff0c\u8fbe\u5230\u6307\u5b9a\u6b21\u6570\u540e\u4f1a\u89e6\u53d1\u91cd\u542f\u64cd\u4f5c\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
6.readiness\u63a2\u9488\u7684httpGet\u4f7f\u7528<\/em><\/strong><\/p>\n\n\n\n
[root@k8s-master check]# cat nginx-rc-httpGet.yaml\r\napiVersion: v1\r\nkind: ReplicationController\r\nmetadata:\r\n  name: readiness\r\nspec:\r\n  replicas: 2\r\n  selector:\r\n    app: readiness\r\n  template:\r\n    metadata:\r\n      labels:\r\n        app: readiness\r\n    spec:\r\n      containers:\r\n      - name: readiness\r\n        image: k8s-master:5000\/sunfuyang\/nginx:1.13\r\n        ports:\r\n        - containerPort: 80\r\n        readinessProbe:\r\n          httpGet:\r\n            path: \/sfy.html\r\n            port: 80\r\n          initialDelaySeconds: 3\r\n          periodSeconds: 3\r\n[root@k8s-master check]# kubectl apply -f nginx-rc-httpGet.yaml\r\n[root@k8s-master check]# kubectl expose rc readiness --port=80 --target-port=80 --type=NodePort\r\n\u53ef\u4ee5\u770b\u5230pod\u4e0d\u5065\u5eb7\uff0csvc\u540e\u7aef\u8282\u70b9\u4e3a\u7a7a\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u6b64\u65f6\u8fdb\u5165\u5bb9\u5668\u521b\u5efa\u5bf9\u5e94\u7684\u5065\u5eb7\u68c0\u67e5\u7684\u6587\u4ef6\r\n[root@k8s-master check]# kubectl exec -it readiness-9qwnx bash\r\nroot@readiness-9qwnx:\/# touch \/usr\/share\/nginx\/html\/sfy.html\r\nroot@readiness-9qwnx:\/# exit\r\n\u6b64\u65f6\u53d1\u73b0\u521b\u5efa\u6587\u4ef6\u7684\u8282\u70b9\u88ab\u52a0\u5165\u4e86svc\u7684\u540e\u7aef\u8282\u70b9\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
4.dashboard\u670d\u52a1<\/h2>\n\n\n\n
1.dashboard\u6982\u8ff0<\/em><\/strong><\/p>\n\n\n\n
dashboard\u53ef\u4ee5\u5c06K8S\u96c6\u7fa4\u7684\u64cd\u4f5c\u5c01\u88c5\u6210WebUI\u8fdb\u884c\u64cd\u4f5c\u3002\u4e0d\u4ec5\u5982\u6b64\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u89d2\u8272\u8bbf\u95ee\u63a7\u5236<\/code><\/pre>\n\n\n\n
2.\u5b89\u88c5dashboard\u670d\u52a1<\/em><\/strong><\/p>\n\n\n\n
##\u4e0a\u4f20\u955c\u50cf<\/strong>\r\nwget www.buyao007.icu\/kubernetes-dashboard-amd64.tar\r\ndocker load -i kubernetes-dashboard-amd64.tar\r\n###\u4fee\u6539dashboard\u7684yaml\u6587\u4ef6<\/strong>\r\n[root@k8s-master k8s_yaml]# mkdir dashboard\r\n[root@k8s-master k8s_yaml]# cd dashboard\/\r\nwget www.buyao007.icu\/dashboard-yaml.tar.gz\r\n[root@k8s-master dashboard]# cat 01-deploy-dashboard.yaml \r\napiVersion: extensions\/v1beta1\r\nkind: Deployment\r\nmetadata:\r\n# Keep the name in sync with image version and\r\n# gce\/coreos\/kube-manifests\/addons\/dashboard counterparts\r\n  name: kubernetes-dashboard-latest\r\n  namespace: kube-system\r\nspec:\r\n  replicas: 1\r\n  template:\r\n    metadata:\r\n      labels:\r\n        k8s-app: kubernetes-dashboard\r\n        version: latest\r\n        kubernetes.io\/cluster-service: \"true\"\r\n    spec:\r\n      nodeName: k8s-node-2\r\n      containers:\r\n      - name: kubernetes-dashboard\r\n        image: k8s-master:5000\/sunfuyang\/kubernetes-dashboard-amd64:v1.4.1\r\n        resources:\r\n          # keep request = limit to keep this container in guaranteed class\r\n          limits:\r\n            cpu: 100m\r\n            memory: 50Mi\r\n          requests:\r\n            cpu: 100m\r\n            memory: 50Mi\r\n        ports:\r\n        - containerPort: 9090\r\n        args:\r\n         -  --apiserver-host=http:\/\/10.0.0.101:8080\r\n        livenessProbe:\r\n          httpGet:\r\n            path: \/\r\n            port: 9090\r\n          initialDelaySeconds: 30\r\n          timeoutSeconds: 30\r\n[root@k8s-master dashboard]# cat 02-deyloy-dashboard-svc.yaml \r\napiVersion: v1\r\nkind: Service\r\nmetadata:\r\n  name: kubernetes-dashboard\r\n  namespace: kube-system\r\n  labels:\r\n    k8s-app: kubernetes-dashboard\r\n    kubernetes.io\/cluster-service: \"true\"\r\n    school: \"BeiJing_ShangHai_ShenZhen\"\r\nspec:\r\n  type: NodePort\r\n  selector:\r\n    k8s-app: kubernetes-dashboard\r\n  ports:\r\n  - port: 80\r\n    targetPort: 9090\r\n    nodePort: 30886\r<\/code><\/pre>\n\n\n\n
3.\u8bbf\u95eedashboard\u7684WebUI<\/em><\/strong><\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u9664\u4e86\u901a\u8fc7nodeport\u8bbf\u95ee\u4ee5\u5916\u8fd8\u53ef\u4ee5\u901a\u8fc7apiserver\u53cd\u5411\u4ee3\u7406\u8bbf\u95ee\r\n\u6d4f\u89c8\u5668\u8f93\u516510.0.0.11:8080\/ui\u4f1a\u81ea\u52a8\u8df3\u8f6c\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
5.\u901a\u8fc7apiserver\u53cd\u5411\u4ee3\u7406\u8bbf\u95eeservice<\/h2>\n\n\n\n
1.\u5206\u6790\u901a\u8fc7apiserver\u53cd\u5411\u4ee3\u7406\u8bbf\u95eeservice<\/em><\/strong><\/p>\n\n\n\n
\u6211\u4eec\u4ee5dashboard\u670d\u52a1\u4e3a\u4f8b\uff0c\u5206\u6790\u901a\u8fc7apiserver\u53cd\u5411\u4ee3\u7406\u8bbf\u95eeservice\u5982\u4e0b:\r\n(1)\u5e26\u6709\u951a\u70b9\u7684URL\uff08\u5176\u4e2d\u4ee5\"#\"\u4e4b\u540e\u7684\u6240\u6709\u5185\u5bb9\u5747\u4e3a\u951a\u70b9\uff09\r\nhttp://k8s.com:8080\/api\/v1\/proxy\/namespaces\/kube-system\/services\/kubernetes-dashboard\/#\/workload?namespace=default\r\n(2)\u627e\u51fa\u771f\u5b9e\u7684URL\uff0c\u5982\u4e0b\u6240\u793a:\r\nhttp:\/\/k8s.com:8080\/api\/v1\/proxy\/namespaces\/kube-system\/services\/kubernetes-dashboard\r\n(3)\u5206\u6790\u901a\u8fc7apiserver\u53cd\u5411\u4ee3\u7406\u8bbf\u95eeservice\u7684\u8bed\u6cd5\u683c\u5f0f\r\nhttp:\/\/apiserver:8080\/api\/v1\/proxy\/namespaces\/<Pod\u8d44\u6e90\u6240\u5728\u7684\u540d\u79f0\u7a7a\u95f4>\/services\/<\u66b4\u9732Pod\u8d44\u6e90\u7684service\u540d\u79f0>\r\n\r\n\u6e29\u99a8\u63d0\u793a:\r\n\u5c3d\u7ba1\u6211\u4eec\u6ca1\u6709\u5bf9service\u914d\u7f6eNodePort\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7apiserver\u53cd\u5411\u4ee3\u7406\u8bbf\u95eeservice\uff0c\u4f46\u8fd9\u6837\u7684\u8bddURL\u4f1a\u5f88\u957f\uff0c\u56e0\u6b64\u5efa\u8bae\u5927\u5bb6\u8fd8\u662f\u4f7f\u7528NodePort\u7c7b\u578b\u5bf9\u5916\u63d0\u4f9b\u8bbf\u95ee\uff0c\u8fd9\u6837\u5bf9\u7528\u6237\u6765\u8bf4\u6bd4\u8f83\u53cb\u597d\r<\/code><\/pre>\n\n\n\n
2.\u6d4b\u8bd5<\/em><\/strong><\/p>\n\n\n\n
\u8bbf\u95ee\u5730\u5740\uff1a\r\nhttp://10.0.0.11:8080\/api\/v1\/proxy\/namespaces\/default\/services\/wordpress\/\r\n\u53d1\u73b0\u548c\u4f7f\u7528nodeport\u8bbf\u95ee\u6548\u679c\u4e00\u6837\r<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6 […]<\/p>\n","protected":false},"author":1,"featured_media":246,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"_links":{"self":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1262"}],"collection":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1262"}],"version-history":[{"count":9,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1262\/revisions"}],"predecessor-version":[{"id":1289,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1262\/revisions\/1289"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/media\/246"}],"wp:attachment":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}