二進制安裝k8s - 03. 生成所有服務的kubeconfig文件
準備 kubectl 使用的admin證書籤名請求
創建配置文件
[root@master cert]# pwd
/data/k8s/cert
[root@master cert]# vim admin-csr.json
{
"CN": "admin",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "SiChuan",
"L": "ChengDu",
"O": "system:masters",
"OU": "Lswzw"
}
]
}
注:
① signing :表示該證書可用於簽名其它證書,生成的 ca.pem 證書中CA=TRUE ;
② server auth :表示 client 可以用該該證書對 server 提供的證書進行驗證;
③ client auth :表示 server 可以用該該證書對 client 提供的證書進行驗證;
創建admin證書與私鑰
cfssl gencert \
-ca=ca.pem \
-ca-key=ca-key.pem \
-config=ca-config.json \
-profile=kubernetes admin-csr.json | cfssljson -bare admin
設置集羣參數
kubectl config set-cluster kubernetes \
--certificate-authority=ca.pem \
--embed-certs=true \
--server={{ KUBE_APISERVER }} \
--kubeconfig=/data/k8s/conf/kubectl.kubeconfig
我這裏的{{ KUBE_APISERVER }} 爲 https://192.168.100.59:6443
設置客戶端認證參數
kubectl config set-credentials admin \
--client-certificate=admin.pem \
--client-key=admin-key.pem \
--embed-certs=true \
--kubeconfig=/data/k8s/conf/kubectl.kubeconfig
設置上下文參數
kubectl config set-context /data/k8s/conf/kubectl.kubeconfig \
--cluster=kubernetes --user=admin
選擇默認上下文
kubectl config use-context /data/k8s/conf/kubectl.kubeconfig
準備 kube-proxy 證書籤名請求
創建配置文件
[root@master cert]# pwd
/data/k8s/cert
[root@master cert]# vim kube-proxy-csr.json
{
"CN": "system:kube-proxy",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "SiChuan",
"L": "ChengDu",
"O": "k8s",
"OU": "Lswzw"
}
]
}
注:
① signing :表示該證書可用於簽名其它證書,生成的 ca.pem 證書中CA=TRUE ;
② server auth :表示 client 可以用該該證書對 server 提供的證書進行驗證;
③ client auth :表示 server 可以用該該證書對 client 提供的證書進行驗證;
創建 kube-proxy證書與私鑰
cfssl gencert \
-ca=ca.pem \
-ca-key=ca-key.pem \
-config=ca-config.json \
-profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy
設置集羣參數
kubectl config set-cluster kubernetes \
--certificate-authority=ca.pem \
--embed-certs=true \
--server={{ KUBE_APISERVER }} \
--kubeconfig=/data/k8s/conf/kube-proxy.kubeconfig
我這裏的{{ KUBE_APISERVER }} 爲 https://192.168.100.59:6443
設置客戶端認證參數
kubectl config set-credentials kube-proxy \
--client-certificate=kube-proxy.pem \
--client-key=kube-proxy-key.pem \
--embed-certs=true \
--kubeconfig=/data/k8s/conf/kube-proxy.kubeconfig
設置上下文參數
kubectl config set-context default \
--cluster=kubernetes \
--user=kube-proxy \
--kubeconfig=/data/k8s/conf/kube-proxy.kubeconfig
選擇默認上下文
kubectl config use-context default \
--kubeconfig=/data/k8s/conf/kube-proxy.kubeconfig
準備 kube-controller-manager 證書籤名請求
創建配置文件
[root@master cert]# pwd
/data/k8s/cert
[root@master cert]# vim kube-controller-manager-csr.json
{
"CN": "system:kube-controller-manager",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "SiChuan",
"L": "ChengDu",
"O": "system:kube-controller-manager",
"OU": "Lswzw"
}
]
}
注:
① signing :表示該證書可用於簽名其它證書,生成的 ca.pem 證書中CA=TRUE ;
② server auth :表示 client 可以用該該證書對 server 提供的證書進行驗證;
③ client auth :表示 server 可以用該該證書對 client 提供的證書進行驗證;
創建 kube-controller-manager 證書與私鑰
cfssl gencert \
-ca=ca.pem \
-ca-key=ca-key.pem \
-config=ca-config.json \
-profile=kubernetes kube-controller-manager-csr.json | cfssljson -bare kube-controller-manager
設置集羣參數
kubectl config set-cluster kubernetes \
--certificate-authority=ca.pem \
--embed-certs=true \
--server={{ KUBE_APISERVER }} \
--kubeconfig=/data/k8s/conf/kube-controller-manager.kubeconfig
我這裏的{{ KUBE_APISERVER }} 爲 https://192.168.100.59:6443
設置客戶端認證參數
kubectl config set-credentials system:kube-controller-manager \
--client-certificate=kube-controller-manager.pem \
--client-key=kube-controller-manager-key.pem \
--embed-certs=true \
--kubeconfig=/data/k8s/conf/kube-controller-manager.kubeconfig
設置上下文參數
kubectl config set-context default \
--cluster=kubernetes \
--user=system:kube-controller-manager \
--kubeconfig=/data/k8s/conf/kube-controller-manager.kubeconfig
選擇默認上下文
kubectl config use-context default \
--kubeconfig=/data/k8s/conf/kube-controller-manager.kubeconfig
準備 kube-scheduler 證書籤名請求
創建配置文件
[root@master cert]# pwd
/data/k8s/cert
[root@master cert]# vim kube-scheduler-csr.json
{
"CN": "system:kube-scheduler",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "HangZhou",
"L": "XS",
"O": "system:kube-scheduler",
"OU": "System"
}
]
}
注:
① signing :表示該證書可用於簽名其它證書,生成的 ca.pem 證書中CA=TRUE ;
② server auth :表示 client 可以用該該證書對 server 提供的證書進行驗證;
③ client auth :表示 server 可以用該該證書對 client 提供的證書進行驗證;
創建 kube-scheduler 證書與私鑰
cfssl gencert \
-ca=ca.pem \
-ca-key=ca-key.pem \
-config=ca-config.json \
-profile=kubernetes kube-scheduler-csr.json | cfssljson -bare kube-scheduler
設置集羣參數
kubectl config set-cluster kubernetes \
--certificate-authority=ca.pem \
--embed-certs=true \
--server={{ KUBE_APISERVER }} \
--kubeconfig=/data/k8s/conf/kube-scheduler.kubeconfig
我這裏的{{ KUBE_APISERVER }} 爲 https://192.168.100.59:6443
設置客戶端認證參數
kubectl config set-credentials system:kube-scheduler \
--client-certificate=kube-scheduler.pem \
--client-key=kube-scheduler-key.pem \
--embed-certs=true \
--kubeconfig=/data/k8s/conf/kube-scheduler.kubeconfig
設置上下文參數
kubectl config set-context default \
--cluster=kubernetes \
--user=system:kube-scheduler \
--kubeconfig=/data/k8s/conf/kube-scheduler.kubeconfig
選擇默認上下文
kubectl config use-context default \
--kubeconfig=/data/k8s/conf/kube-scheduler.kubeconfig
最後目錄結構
[root@master k8s]# tree
.
├── bin
│ ├── bridge
│ ├── cfssl
│ ├── cfssl-certinfo
│ ├── cfssljson
│ ├── containerd
│ ├── containerd-shim
│ ├── ctr
│ ├── docker
│ ├── dockerd
│ ├── docker-init
│ ├── docker-proxy
│ ├── etcd
│ ├── etcdctl
│ ├── kubeadm
│ ├── kube-apiserver
│ ├── kube-controller-manager
│ ├── kubectl
│ ├── kubelet
│ ├── kube-proxy
│ ├── kube-scheduler
│ └── runc
├── cert
│ ├── admin.csr
│ ├── admin-csr.json
│ ├── admin-key.pem
│ ├── admin.pem
│ ├── ca-config.json
│ ├── ca.csr
│ ├── ca-csr.json
│ ├── ca-key.pem
│ ├── ca.pem
│ ├── kube-controller-manager.csr
│ ├── kube-controller-manager-csr.json
│ ├── kube-controller-manager-key.pem
│ ├── kube-controller-manager.pem
│ ├── kube-proxy.csr
│ ├── kube-proxy-csr.json
│ ├── kube-proxy-key.pem
│ ├── kube-proxy.pem
│ ├── kube-scheduler.csr
│ ├── kube-scheduler-csr.json
│ ├── kube-scheduler-key.pem
│ └── kube-scheduler.pem
└── conf
├── kube-controller-manager.kubeconfig
├── kubectl.kubeconfig
├── kube-proxy.kubeconfig
└── kube-scheduler.kubeconfig