{"id":35928,"date":"2023-05-03T00:17:16","date_gmt":"2024-01-22T15:25:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8coreos%e9%9b%86%e7%be%a4%e4%b8%8a%e9%85%8d%e7%bd%aekubernetes%e7%9a%84%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-30T02:21:49","modified_gmt":"2024-04-29T18:21:49","slug":"%e5%9c%a8coreos%e9%9b%86%e7%be%a4%e4%b8%8a%e9%85%8d%e7%bd%aekubernetes%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8coreos%e9%9b%86%e7%be%a4%e4%b8%8a%e9%85%8d%e7%bd%aekubernetes%e7%9a%84%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u5728CoreOS\u96c6\u7fa4\u4e0a\u914d\u7f6eKubernetes\u7684\u65b9\u6cd5"},"content":{"rendered":"<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728CoreOS\u96c6\u7fa4\u4e0a\u8bbe\u7f6eKubernetes\u3002<\/p>\n<p>\u8fd9\u4e2a\u535a\u5ba2\u662f\u4ece\u82f1\u6587\u7248\u672c\u7ffb\u8bd1\u800c\u6765\u7684\uff0c\u539f\u6587\u53ef\u4ee5\u5728\u8fd9\u91cc\u67e5\u770b\u3002\u6211\u4eec\u4f7f\u7528\u4e86\u90e8\u5206\u673a\u5668\u7ffb\u8bd1\uff0c\u5982\u679c\u6709\u7ffb\u8bd1\u9519\u8bef\uff0c\u8bf7\u6307\u51fa\uff0c\u4e0d\u80dc\u611f\u6fc0\u3002<\/p>\n<h1>\u524d\u63d0\u6761\u4ef6\u548c\u76ee\u6807<\/h1>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u4ece\u57fa\u672c\u7684CoreOS\u96c6\u7fa4\u5f00\u59cb\u3002\u7531\u4e8e\u963f\u91cc\u4e91\u5df2\u7ecf\u63d0\u4f9b\u4e86\u53ef\u914d\u7f6e\u7684\u96c6\u7fa4\uff0c\u56e0\u6b64\u6211\u4e0d\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u3002\u96c6\u7fa4\u6240\u9700\u8981\u7684\u81f3\u5c11\u662f\u4e00\u4e2a\u4e3b\u8282\u70b9\u548c\u591a\u4e2a\u5de5\u4f5c\u8282\u70b9\u3002\u5c3d\u7ba1\u5728Kubernetes\u4e2d\uff0c\u8282\u70b9\u88ab\u8d4b\u4e88\u4e86\u4e13\u95e8\u7684\u89d2\u8272\uff0c\u4f46\u8fd9\u4e9b\u8282\u70b9\u662f\u517c\u5bb9\u7684\u3002\u5176\u4e2d\u4e00\u4e2a\u8282\u70b9\uff0c\u5373\u4e3b\u8282\u70b9\uff0c\u5c06\u627f\u62c5\u63a7\u5236\u7ba1\u7406\u548cAPI\u670d\u52a1\u5668\u7684\u89d2\u8272\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d25c737434c4406c34c33\/4-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u5728\u8fd9\u4e2a\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u53c2\u8003\u4e86CoreOS\u7f51\u7ad9\u4e0a\u516c\u5f00\u7684\u5b9e\u65bd\u6307\u5357\u3002\u5728CoreOS\u96c6\u7fa4\u5b8c\u5168\u8bbe\u7f6e\u597d\u4e4b\u540e\uff0c\u8ba9\u6211\u4eec\u7ee7\u7eed\u8fdb\u884c\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u4e24\u4e2a\u6837\u4f8bBareMetal\u8282\u70b9\u3002<\/p>\n<h1>\u4e3b\u8282\u70b9<\/h1>\n<p>\u5c06\u8282\u70b91\u8bbe\u4e3a\u4e3b\u8282\u70b9\u3002\u4eceCoreOS\u8282\u70b9\u7684SSH\u5f00\u59cb\u3002<\/p>\n<p>\u521b\u5efa\u540d\u4e3a&#8221;certs&#8221;\u7684\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code>$ mkdir certs\r\n$ cd certs\r\n<\/code><\/pre>\n<p>\u5c06\u4ee5\u4e0b\u811a\u672c\u7c98\u8d34\u5230cert_generator.sh\u4e2d\u7684certs\u76ee\u5f55\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code>#!\/bin\/bash\r\n# Creating TLS certs\r\necho \"Creating CA ROOT**********************************************************************\"\r\nopenssl genrsa -out ca-key.pem 2048\r\nopenssl req -x509 -new -nodes -key ca-key.pem -days 10000 -out ca.pem -subj \"\/CN=kube-ca\"\r\necho \"creating API Server certs*************************************************************\"\r\necho \"Enter Master Node IP address:\"\r\nread master_Ip\r\ncat &gt;openssl.cnf&lt;&lt;EOF\r\n[req]\r\nreq_extensions = v3_req\r\ndistinguished_name = req_distinguished_name\r\n[req_distinguished_name]\r\n[ v3_req ]\r\nbasicConstraints = CA:FALSE\r\nkeyUsage = nonRepudiation, digitalSignature, keyEncipherment\r\nsubjectAltName = @alt_names\r\n[alt_names]\r\nDNS.1 = kubernetes\r\nDNS.2 = kubernetes.default\r\nDNS.3 = kubernetes.default.svc\r\nDNS.4 = kubernetes.default.svc.cluster.local\r\nIP.1 = 10.3.0.1\r\nIP.2 = $master_Ip\r\nEOF\r\nopenssl genrsa -out apiserver-key.pem 2048\r\nopenssl req -new -key apiserver-key.pem -out apiserver.csr -subj \"\/CN=kube-apiserver\" -config openssl.cnf\r\nopenssl x509 -req -in apiserver.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out apiserver.pem -days 365 -extensions v3_req -extfile openssl.cnf\r\necho \"Creating worker nodes\"\r\ncat &gt; worker-openssl.cnf&lt;&lt; EOF\r\n[req]\r\nreq_extensions = v3_req\r\ndistinguished_name = req_distinguished_name\r\n[req_distinguished_name]\r\n[ v3_req ]\r\nbasicConstraints = CA:FALSE\r\nkeyUsage = nonRepudiation, digitalSignature, keyEncipherment\r\nsubjectAltName = @alt_names\r\n[alt_names]\r\nIP.1 = \\$ENV::WORKER_IP\r\nEOF\r\necho \"Enter the number of worker nodes:\"\r\nread worker_node_num\r\nfor (( c=1; c&lt;= $worker_node_num; c++ ))\r\ndo\r\n   echo \"Enter the IP Address for the worker node_$c :\"\r\n   read ip\r\n   openssl genrsa -out kube-$c-worker-key.pem 2048\r\n   WORKER_IP=$ip openssl req -new -key kube-$c-worker-key.pem -out kube-$c-worker.csr -subj \"\/CN=kube-$c\" -config worker-openssl.cnf\r\n   WORKER_IP=$ip openssl x509 -req -in kube-$c-worker.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out kube-$c-worker.pem -days 365 -extensions v3_req -extfile worker-openssl.cnf\r\ndone\r\necho \"Creating Admin certs********************************************************\"\r\nopenssl genrsa -out admin-key.pem 2048\r\nopenssl req -new -key admin-key.pem -out admin.csr -subj \"\/CN=kube-admin\"\r\nopenssl x509 -req -in admin.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out admin.pem -days 365\r\necho \"DONE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\"\r\n<\/code><\/pre>\n<p>\u8bbe\u7f6e\u53ef\u6267\u884c\u811a\u672c\u3002<\/p>\n<p>Note: The provided sentence is in Japanese, not Chinese. The paraphrase provided is a direct translation from Japanese to Chinese.<\/p>\n<pre class=\"post-pre\"><code>$ chmod +x cert_generator.sh\r\n<\/code><\/pre>\n<p>\u5f53\u6267\u884c\u811a\u672c\u540e\uff0c\u5e94\u8be5\u4f1a\u63d0\u793a\u8f93\u5165\u8282\u70b9\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u7136\u540e\uff0c\u4f1a\u751f\u6210\u7528\u4e8e\u5728Kubernetes\u4e0a\u8fdb\u884c\u5b89\u88c5\u7684\u8bc1\u4e66\u3002<\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55\u6765\u5b58\u50a8\u751f\u6210\u7684\u5bc6\u94a5\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code>$ mkdir -p \/etc\/kubernetes\/ssl\r\n<\/code><\/pre>\n<p>\u5c06certs\u4e2d\u7684\u4ee5\u4e0bcerts\u590d\u5236\u5230\/etc\/kubernetes\/ssl\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code>\/etc\/kubernetes\/ssl\/ca.pem\r\n\/etc\/kubernetes\/ssl\/apiserver.pem\r\n\/etc\/kubernetes\/ssl\/apiserver-key.pem\r\n<\/code><\/pre>\n<h1>\u7f51\u7edc\u914d\u7f6e<\/h1>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u83b7\u53d6flannel\u7684\u672c\u5730\u8bbe\u7f6e\u5e76\u5c06\u5176\u914d\u7f6e\u4e3a\u4eceetcd\u83b7\u53d6\u96c6\u7fa4\u7ea7\u522b\u7684\u914d\u7f6e\u3002\u8bf7\u521b\u5efa\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9\u7684\u811a\u672c\uff0c\u5e76\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\u3002<\/p>\n<p>1\u3001\u8bf7\u5c06${ADVERTISE_IP}\u66ff\u6362\u4e3a\u673a\u5668\u7684\u516c\u5171IP\u3002<br \/>\n2\u3001\u8bf7\u66ff\u6362${ETCD_ENDPOINTS}\u3002<\/p>\n<pre class=\"post-pre\"><code>FLANNELD_IFACE=${ADVERTISE_IP}\r\nFLANNELD_ETCD_ENDPOINTS=${ETCD_ENDPOINTS}\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u5982\u4e0b\u6240\u793a\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4e0a\u8ff0\u8bbe\u7f6e\u7684drop-in\u6587\u4ef6\u5939\uff1a<br \/>\n\/etc\/systemd\/system\/flanneld.service.d\/40-ExecStartPre-symlink.conf<\/p>\n<pre class=\"post-pre\"><code>[Service]\r\nExecStartPre=\/usr\/bin\/ln -sf \/etc\/flannel\/options.env \/run\/flannel\/options.env\r\n<\/code><\/pre>\n<h1>Docker\u7684\u914d\u7f6e<\/h1>\n<p>\u4e3a\u4e86\u7ba1\u7406\u96c6\u7fa4\u7684Pod\u7f51\u7edc\uff0c\u9700\u8981\u5728flannel\u4e2d\u914d\u7f6eDocker\u3002\u9700\u8981\u786e\u4fdd\u5728Docker\u542f\u52a8\u4e4b\u524d\u5148\u8fd0\u884cflannel\u3002\u8ba9\u6211\u4eec\u5c1d\u8bd5\u5e94\u7528systemd\u7684\u9644\u52a0\u914d\u7f6e\u6587\u4ef6\uff0c\u5373\u5728\u8def\u5f84\/etc\/systemd\/system\/docker.service.d\/40-flannel.conf\u4e2d\u8fdb\u884c\u914d\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code>[Unit]\r\nRequires=flanneld.service\r\nAfter=flanneld.service\r\n[Service]\r\nEnvironmentFile=\/etc\/kubernetes\/cni\/docker_opts_cni.env\r\n<\/code><\/pre>\n<p>\u6267\u884cDocker CNI\u9009\u9879\u6587\u4ef6\uff0c\u5e76\u542f\u52a8\/etc\/kubernetes\/cni\/docker_opts_cni.en\u3002<\/p>\n<pre class=\"post-pre\"><code>DOCKER_OPT_BIP=\"\"\r\nDOCKER_OPT_IPMASQ=\"\"\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4f7f\u7528flannel\u7f51\u7edc\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884cflannel CNI\u7684\u8bbe\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code>\/etc\/kubernetes\/cni\/net.d\/10-flannel.conf\r\n{\r\n    \"name\": \"podnet\",\r\n    \"type\": \"flannel\",\r\n    \"delegate\": {\r\n        \"isDefaultGateway\": true\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>Kubelet\u5355\u5143\u7684\u521b\u5efa<br \/>\nKubelet\u8d1f\u8d23\u542f\u52a8\u548c\u505c\u6b62Pod\u4ee5\u53ca\u5176\u4ed6\u673a\u5668\u7ea7\u4efb\u52a1\u3002\u5b83\u5c06\u4f7f\u7528\u5148\u524d\u5b89\u88c5\u7684TLS\u8bc1\u4e66\u4e0e\u5728\u4e3b\u8282\u70b9\u4e0a\u8fd0\u884c\u7684API\u670d\u52a1\u5668\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<p>\u521b\u5efa\/etc\/systemd\/system\/kubelet.service\u3002<\/p>\n<p>1\u3001\u8bf7\u5c06${ADVERTISE_IP}\u66ff\u6362\u4e3a\u8be5\u8282\u70b9\u7684\u516c\u5171IP\u3002<br \/>\n2\u3001\u8bf7\u5c06${DNS_SERVICE_IP}\u66ff\u6362\u4e3a10.3.0.10\u3002<\/p>\n<pre class=\"post-pre\"><code>[Service]\r\nEnvironment=KUBELET_VERSION=v1.5.1_coreos.0\r\nEnvironment=\"RKT_OPTS=--uuid-file-save=\/var\/run\/kubelet-pod.uuid \\\r\n  --volume var-log,kind=host,source=\/var\/log \\\r\n  --mount volume=var-log,target=\/var\/log \\\r\n  --volume dns,kind=host,source=\/etc\/resolv.conf \\\r\n  --mount volume=dns,target=\/etc\/resolv.conf\"\r\nExecStartPre=\/usr\/bin\/mkdir -p \/etc\/kubernetes\/manifests\r\nExecStartPre=\/usr\/bin\/mkdir -p \/var\/log\/containers\r\nExecStartPre=-\/usr\/bin\/rkt rm --uuid-file=\/var\/run\/kubelet-pod.uuid\r\nExecStart=\/usr\/lib\/coreos\/kubelet-wrapper \\\r\n  --api-servers=http:\/\/127.0.0.1:8080 \\\r\n  --register-schedulable=false \\\r\n  --cni-conf-dir=\/etc\/kubernetes\/cni\/net.d \\\r\n  --network-plugin=cni \\\r\n  --container-runtime=docker \\\r\n  --allow-privileged=true \\\r\n  --pod-manifest-path=\/etc\/kubernetes\/manifests \\\r\n  --hostname-override=${ADVERTISE_IP} \\\r\n  --cluster_dns=${DNS_SERVICE_IP} \\\r\n  --cluster_domain=cluster.local\r\nExecStop=-\/usr\/bin\/rkt stop --uuid-file=\/var\/run\/kubelet-pod.uuid\r\nRestart=always\r\nRestartSec=10\r\n\r\n[Install]\r\nWantedBy=multi-user.target\r\n<\/code><\/pre>\n<h3>kube-apiserver\u7684Pod\u8bbe\u7f6e<\/h3>\n<p>API\u670d\u52a1\u5668\u8d1f\u8d23\u5904\u7406\u5927\u90e8\u5206\u5de5\u4f5c\u8d1f\u8f7d\uff0c\u5e76\u4e14\u6267\u884c\u5927\u591a\u6570\u7684\u6d3b\u52a8\u3002API\u670d\u52a1\u5668\u662f\u65e0\u72b6\u6001\u7684\uff0c\u5b83\u5904\u7406\u8bf7\u6c42\u5e76\u63d0\u4f9b\u53cd\u9988\uff0c\u5e76\u5728\u9700\u8981\u65f6\u5c06\u7ed3\u679c\u5b58\u50a8\u5230etcd\u4e2d\u3002<\/p>\n<p>\u521b\u5efa etc\/kubernetes\/manifests\/kube-apiserver.yaml \u6587\u4ef6\u3002<\/p>\n<p>1\u3001\u8bf7\u5c06${ETCD_ENDPOINTS}\u66ff\u6362\u4e3aCoreOS\u4e3b\u673a\u3002<br \/>\n2\u3001\u8bf7\u5c06${SERVICE_IP_RANGE}\u66ff\u6362\u4e3a10.3.0.0.0\/24\u3002<br \/>\n3\u3001\u8bf7\u5c06${ADVERTISE_IP}\u66ff\u6362\u4e3a\u6b64\u8282\u70b9\u7684\u516c\u5171IP\u5730\u5740\u3002<\/p>\n<pre class=\"post-pre\"><code>apiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: kube-apiserver\r\n  namespace: kube-system\r\nspec:\r\n  hostNetwork: true\r\n  containers:\r\n  - name: kube-apiserver\r\n    image: quay.io\/coreos\/hyperkube:v1.5.1_coreos.0\r\n    command:\r\n    - \/hyperkube\r\n    - apiserver\r\n    - --bind-address=0.0.0.0\r\n    - --etcd-servers=${ETCD_ENDPOINTS}\r\n    - --allow-privileged=true\r\n    - --service-cluster-ip-range=${SERVICE_IP_RANGE}\r\n    - --secure-port=443\r\n    - --advertise-address=${ADVERTISE_IP}\r\n    - --admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,ResourceQuota\r\n    - --tls-cert-file=\/etc\/kubernetes\/ssl\/apiserver.pem\r\n    - --tls-private-key-file=\/etc\/kubernetes\/ssl\/apiserver-key.pem\r\n    - --client-ca-file=\/etc\/kubernetes\/ssl\/ca.pem\r\n    - --service-account-key-file=\/etc\/kubernetes\/ssl\/apiserver-key.pem\r\n    - --runtime-config=extensions\/v1beta1\/networkpolicies=true\r\n    - --anonymous-auth=false\r\n    livenessProbe:\r\n      httpGet:\r\n        host: 127.0.0.1\r\n        port: 8080\r\n        path: \/healthz\r\n      initialDelaySeconds: 15\r\n      timeoutSeconds: 15\r\n    ports:\r\n    - containerPort: 443\r\n      hostPort: 443\r\n      name: https\r\n    - containerPort: 8080\r\n      hostPort: 8080\r\n      name: local\r\n    volumeMounts:\r\n    - mountPath: \/etc\/kubernetes\/ssl\r\n      name: ssl-certs-kubernetes\r\n      readOnly: true\r\n    - mountPath: \/etc\/ssl\/certs\r\n      name: ssl-certs-host\r\n      readOnly: true\r\n  volumes:\r\n  - hostPath:\r\n      path: \/etc\/kubernetes\/ssl\r\n    name: ssl-certs-kubernetes\r\n  - hostPath:\r\n      path: \/usr\/share\/ca-certificates\r\n    name: ssl-certs-host\r\n<\/code><\/pre>\n<h3>kube-proxy Pod\u7684\u8bbe\u7f6e<\/h3>\n<p>\u4e0eAPI\u670d\u52a1\u5668\u4e00\u6837\uff0c\u6267\u884c\u8d1f\u8d23\u5c06\u6d41\u91cf\u5bfc\u5411\u670d\u52a1\u548cPod\u7684\u4ee3\u7406\u3002\u4ee3\u7406\u901a\u8fc7\u4e0eAPI\u670d\u52a1\u5668\u5b9a\u671f\u901a\u4fe1\u6765\u63d0\u4f9b\u6700\u65b0\u7684\u4fe1\u606f\u3002\u4ee3\u7406\u652f\u6301\u96c6\u7fa4\u5185\u7684\u4e3b\u8282\u70b9\u548c\u5de5\u4f5c\u8282\u70b9\u3002<\/p>\n<p>\u53ef\u4ee5\u76f4\u63a5\u4ece\u521b\u5efa\/etc\/kubernetes\/manifests\/kube-proxy.yaml\u5f00\u59cb\uff0c\u65e0\u9700\u8fdb\u884c\u5176\u4ed6\u8bbe\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code>apiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: kube-proxy\r\n  namespace: kube-system\r\nspec:\r\n  hostNetwork: true\r\n  containers:\r\n  - name: kube-proxy\r\n    image: quay.io\/coreos\/hyperkube:v1.5.1_coreos.0\r\n    command:\r\n    - \/hyperkube\r\n    - proxy\r\n    - --master=http:\/\/127.0.0.1:8080\r\n    securityContext:\r\n      privileged: true\r\n    volumeMounts:\r\n    - mountPath: \/etc\/ssl\/certs\r\n      name: ssl-certs-host\r\n      readOnly: true\r\n  volumes:\r\n  - hostPath:\r\n      path: \/usr\/share\/ca-certificates\r\n    name: ssl-certs-host\r\n<\/code><\/pre>\n<h3>kube-controller-manager\u7684\u914d\u7f6e<\/h3>\n<p>\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\/etc\/kubernetes\/manifests\/kube-controller-manager.yaml\u7684\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u5c06\u4f7f\u7528\u5b58\u50a8\u5728\u78c1\u76d8\u4e2d\u7684TLS\u8bc1\u4e66\u3002<\/p>\n<pre class=\"post-pre\"><code>apiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: kube-controller-manager\r\n  namespace: kube-system\r\nspec:\r\n  hostNetwork: true\r\n  containers:\r\n  - name: kube-controller-manager\r\n    image: quay.io\/coreos\/hyperkube:v1.5.1_coreos.0\r\n    command:\r\n    - \/hyperkube\r\n    - controller-manager\r\n    - --master=http:\/\/127.0.0.1:8080\r\n    - --leader-elect=true\r\n    - --service-account-private-key-file=\/etc\/kubernetes\/ssl\/apiserver-key.pem\r\n    - --root-ca-file=\/etc\/kubernetes\/ssl\/ca.pem\r\n    resources:\r\n      requests:\r\n        cpu: 200m\r\n    livenessProbe:\r\n      httpGet:\r\n        host: 127.0.0.1\r\n        path: \/healthz\r\n        port: 10252\r\n      initialDelaySeconds: 15\r\n      timeoutSeconds: 15\r\n    volumeMounts:\r\n    - mountPath: \/etc\/kubernetes\/ssl\r\n      name: ssl-certs-kubernetes\r\n      readOnly: true\r\n    - mountPath: \/etc\/ssl\/certs\r\n      name: ssl-certs-host\r\n      readOnly: true\r\n  hostNetwork: true\r\n  volumes:\r\n  - hostPath:\r\n      path: \/etc\/kubernetes\/ssl\r\n    name: ssl-certs-kubernetes\r\n  - hostPath:\r\n      path: \/usr\/share\/ca-certificates\r\n    name: ssl-certs-host\r\n<\/code><\/pre>\n<h3>kube-scheduler Pod\u7684\u914d\u7f6e\u8bbe\u7f6e\u3002<\/h3>\n<p>\u7136\u540e\uff0c\u8bbe\u7f6e\u8c03\u5ea6\u7a0b\u5e8f\uff0c\u8ddf\u8e2aAPI\u7684\u975e\u8ba1\u5212Pod\uff0c\u5206\u914d\u673a\u5668\uff0c\u5e76\u5c06\u8be5\u51b3\u7b56\u66f4\u65b0\u5230AP\u4e2d\u3002<\/p>\n<p>\u521b\u5efa etc\/kubernetes\/manifests\/kube-scheduler.yaml \u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>apiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: kube-scheduler\r\n  namespace: kube-system\r\nspec:\r\n  hostNetwork: true\r\n  containers:\r\n  - name: kube-scheduler\r\n    image: quay.io\/coreos\/hyperkube:v1.5.1_coreos.0\r\n    command:\r\n    - \/hyperkube\r\n    - scheduler\r\n    - --master=http:\/\/127.0.0.1:8080\r\n    - --leader-elect=true\r\n    resources:\r\n      requests:\r\n        cpu: 100m\r\n    livenessProbe:\r\n      httpGet:\r\n        host: 127.0.0.1\r\n        path: \/healthz\r\n        port: 10251\r\n      initialDelaySeconds: 15\r\n      timeoutSeconds: 15\r\n<\/code><\/pre>\n<h3>\u8bfb\u53d6\u5df2\u53d8\u52a8\u7684\u5355\u4f4d<\/h3>\n<p>\u8ba9\u7cfb\u7edf\u91cd\u65b0\u626b\u63cf\u6240\u6709\u5df2\u5b9e\u65bd\u7684\u66f4\u6539\u70b9\u3002<\/p>\n<pre class=\"post-pre\"><code>$ sudo systemctl daemon-reload\r\n<\/code><\/pre>\n<h3>Flannel\u7f51\u7edc\u7684\u8bbe\u7f6e<\/h3>\n<p>\u6211\u5011\u5df2\u7d93\u63d0\u5230 etcd \u4fdd\u5b58 Flannel \u96c6\u7fa4\u7d1a\u5225\u7684\u8a2d\u5b9a\u3002\u56e0\u6b64\uff0c\u8b93\u6211\u5011\u5148\u8a2d\u7f6e\u4e00\u4e0b Pod \u7db2\u8def\u7684 IP \u7bc4\u570d\u3002\u7531\u65bc etcd \u5df2\u7d93\u904b\u884c\uff0c\u73fe\u5728\u662f\u8a2d\u7f6e\u7684\u6700\u4f73\u6642\u6a5f\u3002\u6216\u8005\uff0c\u60a8\u53ef\u4ee5\u5148\u555f\u52d5 etcd \u518d\u9032\u884c\u8a2d\u7f6e\u3002<\/p>\n<p>1\u3001\u5c0610.2.0.0\/16\u66ff\u6362\u4e3a$POD_NETWORK\u8fdb\u884c\u914d\u7f6e\u3002<br \/>\n2\u3001\u5c06$ETCD_SERVER\u66ff\u6362\u4e3a$ETCD_ENDPOINTS\u7684URL\uff08http:\/\/ip:port\uff09\u8fdb\u884c\u914d\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code>$ curl -X PUT -d \"value={\\\"Network\\\":\\\"$POD_NETWORK\\\",\\\"Backend\\\":{\\\"Type\\\":\\\"vxlan\\\"}}\" \"$ETCD_SERVER\/v2\/keys\/coreos.com\/network\/config\"\r\n<\/code><\/pre>\n<p>\u4e3a\u4f7f\u66f4\u6539\u751f\u6548\uff0c\u9700\u8981\u91cd\u542fflannel\u3002\u8fd9\u5c06\u6700\u7ec8\u5bfc\u81f4docker\u5b88\u62a4\u8fdb\u7a0b\u7684\u91cd\u542f\uff0c\u53ef\u80fd\u4f1a\u5f71\u54cd\u5bb9\u5668\u7684\u6267\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>$ sudo systemctl start flanneld\r\n$ sudo systemctl enable flanneld\r\n<\/code><\/pre>\n<h3>\u542f\u52a8Kubelet<\/h3>\n<p>\u73b0\u5728\u5df2\u7ecf\u5b8c\u6210\u4e86\u6240\u6709\u7684\u8bbe\u7f6e\uff0ckubelet\u5df2\u7ecf\u51c6\u5907\u5c31\u7eea\u53ef\u4ee5\u542f\u52a8\u4e86\u3002\u6b64\u5916\uff0c\u8fd8\u5c06\u542f\u52a8\u5e76\u6267\u884c\u63a7\u5236\u5668\u3001\u8c03\u5ea6\u5668\u3001\u4ee3\u7406\u548cPod API\u670d\u52a1\u5668\u7684\u6e05\u5355\u3002<\/p>\n<pre class=\"post-pre\"><code>$ sudo systemctl start kubelet\r\n<\/code><\/pre>\n<p>\u8bf7\u786e\u4fdd\u5728\u91cd\u65b0\u542f\u52a8\u540ekubelet\u80fd\u591f\u6210\u529f\u542f\u52a8\u3002<\/p>\n<pre class=\"post-pre\"><code>$ sudo systemctl enable kubelet\r\n<\/code><\/pre>\n<h1>\u5de5\u4f5c\u8282\u70b9<\/h1>\n<p>\u5bf9\u4e8e\u5de5\u4f5c\u8282\u70b9\uff0c\u9996\u5148\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55\uff0c\u7136\u540e\u5c06\u751f\u6210\u7684SSL\u5bc6\u94a5\u653e\u7f6e\u5728\u5de5\u4f5c\u8282\u70b9\u4e0a\u3002<\/p>\n<pre class=\"post-pre\"><code>$ mkdir -p \/etc\/kubernetes\/ssl\r\n<\/code><\/pre>\n<p>\u5c06certs\u590d\u5236\u5230\/etc\/kubernetes\/ssl\u76ee\u5f55\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code>\/etc\/kubernetes\/ssl\/ca.pem\r\n\/etc\/kubernetes\/ssl\/kube-1-worker-apiserver.pem\r\n\/etc\/kubernetes\/ssl\/kube-1-worker-apiserver-key.pem\r\n<\/code><\/pre>\n<h1>\u7f51\u7edc\u914d\u7f6e<\/h1>\n<p>\u8bf7\u5982\u4e4b\u524d\u4e00\u6837\uff0c\u4ece \/etc\/flannel\/options.env \u83b7\u53d6 flannel \u7684\u672c\u5730\u8bbe\u7f6e\uff0c\u5e76\u5c06 etcd \u5b58\u50a8\u96c6\u7fa4\u7ea7\u522b\u7684\u914d\u7f6e\u3002\u8bf7\u590d\u5236\u8be5\u6587\u4ef6\u5e76\u8fdb\u884c\u5fc5\u8981\u7684\u8c03\u6574\u3002<\/p>\n<p>1\u3001\u8bf7\u5c06${ADVERTISE_IP}\u66ff\u6362\u4e3a\u673a\u5668\u7684\u516c\u7f51IP\u3002<br \/>\n2\u3001\u8bf7\u66ff\u6362${ETCD_ENDPOINTS}\u3002<\/p>\n<pre class=\"post-pre\"><code>FLANNELD_IFACE=${ADVERTISE_IP}\r\nFLANNELD_ETCD_ENDPOINTS=${ETCD_ENDPOINTS}\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u5728flannel\u91cd\u65b0\u542f\u52a8\u65f6\u4f7f\u7528\u4e0a\u8ff0\u914d\u7f6e\u7684\u9644\u52a0\u6587\u4ef6\uff0c\u8def\u5f84\u4e3a\/etc\/systemd\/system\/flanneld.service.d\/40-ExecStartPre-symlink.conf\u3002<\/p>\n<pre class=\"post-pre\"><code>[Service].\r\nExecStartPre=\/usr\/bin\/ln -sf \/etc\/flannel\/options.env \/run\/flannel\/options.env\r\n<\/code><\/pre>\n<h1>Docker\u7684\u914d\u7f6e\u8bbe\u7f6e.<\/h1>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8bbe\u7f6eDocker\u4f7f\u7528flannel\u6765\u7ba1\u7406\u96c6\u7fa4\u7684Pod\u7f51\u7edc\u3002\u5b9e\u65bd\u65b9\u6cd5\u4e0e\u4e4b\u524d\u6240\u8ff0\u7684\u7c7b\u4f3c\uff0c\u9700\u8981\u5728Docker\u542f\u52a8\u4e4b\u524d\u542f\u52a8flannel\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\u6211\u4eec\u5c1d\u8bd5\u5e94\u7528\u4e00\u4e2a systemd \u7684 drop-in\uff0c\u8def\u5f84\u4e3a \/etc\/systemd\/system\/docker.service.d\/40-flannel.conf\u3002<\/p>\n<pre class=\"post-pre\"><code>[Unit]\r\nRequires=flanneld.service\r\nAfter=flanneld.service\r\n[Service]\r\nEnvironmentFile=\/etc\/kubernetes\/cni\/docker_opts_cni.env\r\n<\/code><\/pre>\n<p>\u4ee5\u7c7b\u4f3c\/etc\/kubernetes\/cni\/docker_opts_cni.env\u7684\u65b9\u5f0f\u542f\u52a8Docker CNI Options\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>DOCKER_OPT_BIP=\"\"\r\nDOCKER_OPT_IPMASQ=\"\"\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4f9d\u8d56\u4e8eFlannel Network\uff0c\u8bf7\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884cFlannel CNI\u7684\u914d\u7f6e\uff1a\/etc\/kubernetes\/cni\/net.d\/10-flannel.conf\u3002<\/p>\n<pre class=\"post-pre\"><code>{\r\n    \"name\": \"podnet\",\r\n    \"type\": \"flannel\",\r\n    \"delegate\": {\r\n        \"isDefaultGateway\": true\r\n    }\r\n}\r\n<\/code><\/pre>\n<h1>\u521b\u5efaKubelet\u5355\u5143<\/h1>\n<p>\u8ba9\u6211\u4eec\u5728Worker\u8282\u70b9\u4e0a\u521b\u5efa\u4ee5\u4e0bkubelet\u670d\u52a1\u3002<\/p>\n<p>\u521b\u5efa\/etc\/systemd\/system\/kubelet.service\u3002<\/p>\n<p>\u5c06${ADVERTISE_IP}\u66ff\u6362\u4e3a\u8282\u70b9\u7684\u516c\u5171IP\u3002<\/p>\n<p>\u8bf7\u5c06${DNS_SERVICE_IP}\u66ff\u6362\u4e3a10.3.0.10\u3002<\/p>\n<p>\u8bf7\u5c06${MASTER_HOST}\u66ff\u6362\u3002<\/p>\n<pre class=\"post-pre\"><code>Environment=KUBELET_VERSION=v1.5.1_coreos.0\r\nEnvironment=\"RKT_OPTS=--uuid-file-save=\/var\/run\/kubelet-pod.uuid \\\r\n  --volume dns,kind=host,source=\/etc\/resolv.conf \\\r\n  --mount volume=dns,target=\/etc\/resolv.conf \\\r\n  --volume var-log,kind=host,source=\/var\/log \\\r\n  --mount volume=var-log,target=\/var\/log\"\r\nExecStartPre=\/usr\/bin\/mkdir -p \/etc\/kubernetes\/manifests\r\nExecStartPre=\/usr\/bin\/mkdir -p \/var\/log\/containers\r\nExecStartPre=-\/usr\/bin\/rkt rm --uuid-file=\/var\/run\/kubelet-pod.uuid\r\nExecStart=\/usr\/lib\/coreos\/kubelet-wrapper \\\r\n  --api-servers=${MASTER_HOST} \\\r\n  --cni-conf-dir=\/etc\/kubernetes\/cni\/net.d \\\r\n  --network-plugin=cni \\\r\n  --container-runtime=docker \\\r\n  --register-node=true \\\r\n  --allow-privileged=true \\\r\n  --pod-manifest-path=\/etc\/kubernetes\/manifests \\\r\n  --hostname-override=${ADVERTISE_IP} \\\r\n  --cluster_dns=${DNS_SERVICE_IP} \\\r\n  --cluster_domain=cluster.local \\\r\n  --kubeconfig=\/etc\/kubernetes\/worker-kubeconfig.yaml \\\r\n  --tls-cert-file=\/etc\/kubernetes\/ssl\/worker.pem \\\r\n  --tls-private-key-file=\/etc\/kubernetes\/ssl\/worker-key.pem\r\nExecStop=-\/usr\/bin\/rkt stop --uuid-file=\/var\/run\/kubelet-pod.uuid\r\nRestart=always\r\nRestartSec=10\r\n\r\n[Install]\r\nWantedBy=multi-user.target\r\n<\/code><\/pre>\n<h3>kubeproxy Pod\u7684\u914d\u7f6e<\/h3>\n<p>\u521b\u5efaetc\/kubernetes\/manifests\/kube-proxy.yaml\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>apiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n  name: kube-proxy\r\n  namespace: kube-system\r\nspec:\r\n  hostNetwork: true\r\n  containers:\r\n  - name: kube-proxy\r\n    image: quay.io\/coreos\/hyperkube:v1.5.1_coreos.0\r\n    command:\r\n    - \/hyperkube\r\n    - proxy\r\n    - --master=${MASTER_HOST}\r\n    - --kubeconfig=\/etc\/kubernetes\/worker-kubeconfig.yaml\r\n    securityContext:\r\n      privileged: true\r\n    volumeMounts:\r\n    - mountPath: \/etc\/ssl\/certs\r\n      name: \"ssl-certs\"\r\n    - mountPath: \/etc\/kubernetes\/worker-kubeconfig.yaml\r\n      name: \"kubeconfig\"\r\n      readOnly: true\r\n    - mountPath: \/etc\/kubernetes\/ssl\r\n      name: \"etc-kube-ssl\"\r\n      readOnly: true\r\n  volumes:\r\n  - name: \"ssl-certs\"\r\n    hostPath:\r\n      path: \"\/usr\/share\/ca-certificates\"\r\n  - name: \"kubeconfig\"\r\n    hostPath:\r\n      path: \"\/etc\/kubernetes\/worker-kubeconfig.yaml\"\r\n  - name: \"etc-kube-ssl\"\r\n    hostPath:\r\n      path: \"\/etc\/kubernetes\/ssl\"\r\n<\/code><\/pre>\n<h3>kubeconfig\u7684\u914d\u7f6e<\/h3>\n<p>\u4e3a\u4e86\u8ba9Kubernetes\u7ec4\u4ef6\u80fd\u591f\u5b89\u5168\u5730\u8fdb\u884c\u901a\u4fe1\uff0c\u6211\u4eec\u4f7f\u7528kubeconfig\u6765\u5b9a\u4e49\u8eab\u4efd\u9a8c\u8bc1\u8bbe\u7f6e\u3002\u5728\u8fd9\u4e2a\u7279\u5b9a\u7684\u7528\u4f8b\u4e2d\uff0ckubelet\u548cproxy\u4f1a\u6839\u636e\u52a0\u8f7d\u7684\u914d\u7f6e\u6765\u4e0eAPI\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<p>\u9996\u5148\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u3002\u521b\u5efa\/etc\/kubernetes\/worker-kubeconfig.yaml\u3002<\/p>\n<pre class=\"post-pre\"><code>\/etc\/kubernetes\/worker-kubeconfig.yaml\r\napiVersion: v1\r\nkind: Config\r\nclusters:\r\n- name: local\r\n  cluster:\r\n    certificate-authority: \/etc\/kubernetes\/ssl\/ca.pem\r\nusers:\r\n- name: kubelet\r\n  user:\r\n    client-certificate: \/etc\/kubernetes\/ssl\/worker.pem\r\n    client-key: \/etc\/kubernetes\/ssl\/worker-key.pem\r\ncontexts:\r\n- context:\r\n    cluster: local\r\n    user: kubelet\r\n  name: kubelet-context\r\ncurrent-context: kubelet-context\r\n<\/code><\/pre>\n<h3>\u670d\u52a1\u5f00\u59cb<\/h3>\n<p>\u5de5\u4eba\u670d\u52a1\u7684\u51c6\u5907\u5de5\u4f5c\u5df2\u7ecf\u5b8c\u6210\u3002<\/p>\n<h3>\u8bfb\u53d6\u66f4\u6539\u7684\u5185\u5bb9<\/h3>\n<p>\u8ba9\u7cfb\u7edf\u91cd\u65b0\u626b\u63cf\u78c1\u76d8\u4ee5\u66f4\u65b0\u6240\u505a\u7684\u66f4\u6539\u3002<\/p>\n<pre class=\"post-pre\"><code>$ sudo systemctl daemon-reload\r\n<\/code><\/pre>\n<h3>\u542f\u52a8kubelet\u548cflannel\u3002<\/h3>\n<p>\u542f\u52a8kubelet\u5e76\u542f\u52a8\u4ee3\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code>$ sudo systemctl start flanneld\r\n$ sudo systemctl start kubelet\r\n<\/code><\/pre>\n<p>\u6bcf\u6b21\u542f\u52a8\u65f6\u90fd\u4f1a\u5f3a\u5236\u542f\u52a8\u670d\u52a1\u3002<\/p>\n<pre class=\"post-pre\"><code>$ sudo systemctl enable flanneld\r\nCreated symlink from \/etc\/systemd\/system\/multi-user.target.wants\/flanneld.service to \/etc\/systemd\/system\/flanneld.service.\r\n$ sudo systemctl enable kubelet\r\nCreated symlink from \/etc\/systemd\/system\/multi-user.target.wants\/kubelet.service to \/etc\/systemd\/system\/kubelet.service.\r\nTo check the health of the kubelet systemd unit that we created, run systemctl status kubelet.service.\r\n<\/code><\/pre>\n<h1>\u7d50\u679c<\/h1>\n<p>\u5728\u5ea7\u7684\u5404\u4f4d\uff0c\u606d\u559c\u60a8\u8bfb\u5230\u8fd9\u91cc\u3002\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5728CoreOS\u96c6\u7fa4\u4e0a\u8bbe\u7f6e\u5e76\u8fd0\u884cKubernetes\u3002\u6709\u5173Kubernetes\u7684\u66f4\u591a\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003\u672c\u6559\u7a0b\u7684\u5176\u4ed6\u6587\u7ae0\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8bf7\u786e\u4fdd\u6b63\u786e\u4fee\u6539IP\u5730\u5740\u5e76\u5728\u96c6\u7fa4\u4e0a\u8fd0\u884c\u3002\u8f9b\u82e6\u4e86\u3002<\/p>\n<p>\u4f60\u6709\u963f\u91cc\u4e91\u7684\u8d26\u53f7\u5417\uff1f\u6ce8\u518c\u4e00\u4e2a\u8d26\u53f7\uff0c\u514d\u8d39\u8bd5\u752840\u591a\u6b3e\u4ea7\u54c1\u3002\u6709\u5173\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003\u5f00\u59cb\u4f7f\u7528\u963f\u91cc\u4e91\u3002<\/p>\n<p>\u963f\u91cc\u5df4\u5df4\u4e91\u62e5\u6709\u4e24\u4e2a\u6570\u636e\u4e2d\u5fc3\u5728\u65e5\u672c\uff0c\u5e76\u62e5\u6709\u8d85\u8fc760\u4e2a\u53ef\u7528\u533a\u57df\uff0c\u662f\u4e9a\u592a\u5730\u533a\u7b2c\u4e00\u5927\u4e91\u57fa\u7840\u8bbe\u65bd\u63d0\u4f9b\u5546\uff082019\u5e74\u52a0\u7279\u7eb3\uff09\u3002\u66f4\u591a\u963f\u91cc\u5df4\u5df4\u4e91\u7684\u8be6\u7ec6\u4fe1\u606f\u8bf7\u70b9\u51fb\u8fd9\u91cc\u3002\u963f\u91cc\u5df4\u5df4\u4e91\u65e5\u672c\u5b98\u65b9\u9875\u9762\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728CoreOS\u96c6\u7fa4\u4e0a\u8bbe\u7f6eKubernetes\u3002 \u8fd9\u4e2a\u535a\u5ba2\u662f\u4ece\u82f1\u6587\u7248\u672c\u7ffb\u8bd1\u800c\u6765\u7684\uff0c\u539f\u6587\u53ef\u4ee5 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-35928","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5728CoreOS\u96c6\u7fa4\u4e0a\u914d\u7f6eKubernetes\u7684\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728coreos\u96c6\u7fa4\u4e0a\u914d\u7f6ekubernetes\u7684\u65b9\u6cd5\/\" \/>\n<meta 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