如何将 Kubeconfig 中的证书文件转为证书数据
在添加 Kubenetes 云账号时，可以选择 Kubeconfig 或 Service Account 两种认证方式：
如果拿到了 Kubeconfig 指定证书文件认证（以如下的 Kubeconfig 为例： certificate-authority、client-certificate和client-key都指的是某个具体文件，并且文件中包含了证书信息）。那么在添加云账号之前，需要把证书文件转换为 base64 编码过后的字符串。
apiVersion: v1
kind: Config
clusters:
- cluster:
certificate-authority: */ca.crt
server: https://******
name: demo
contexts:
- context:
cluster: demo
user: demo
name: demo
current-context: demo
preferences: {}
users:
- name: demo
user:
client-certificate: */client.crt
client-key: */client.key下面将会讲解如何进行转换操作。
获取证书文件的 base64 编码
执行命令：
OS X
cat "证书文件" | base64Linux
cat "证书文件" | base64Windows
certutil -f -encode "证书文件" "输出文件"更新 Kubeconfig 文件
将
certificate-authority改为certificate-authority-data，并且将*/ca.crt证书文件经 base64 编码后的字符串填入该位置。将
client-certificate改为client-certificate-data，并且将*/client.crt证书文件经 base64 编码后的字符串填入该位置。将
client-key改为client-key-data，并且将*/client.key证书文件 base64 编码后的字符串填入该位置。
最终得到的内容如下：
apiVersion: v1
kind: Config
clusters:
- cluster:
certificate-authority-data: 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
server: https://******
name: demo
contexts:
- context:
cluster: demo
user: demo
name: demo
current-context: demo
preferences: {}
users:
- name: demo
user:
client-certificate-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSURBRENDQWVpZ0F3SUJBZ0lCQWpBTkJna3Foa2lHOXcwQkFRc0ZBREFWTVJNd0VRWURWUVFERXdwdGFXNXAKYTNWaVpVTkJNQjRYRFRJd01ESXhNekV5TXpreU5sb1hEVEl4TURJeE16RXlNemt5Tmxvd01URVhNQlVHQTFVRQpDaE1PYzNsemRHVnRPbTFoYzNSbGNuTXhGakFVQmdOVkJBTVREVzFwYm1scmRXSmxMWFZ6WlhJd2dnRWlNQTBHCkNTcUdTSWIzRFFFQkFRVUFBNElCRHdBd2dnRUtBb0lCQVFDdEp5MThYOGVBaVlJc1g3Z0xQazBOZEFuRlNJU0kKeXNGMGIzS21CTk9VclRIcGtnaUFwRldmZDJaVXNZR3Iwd0VBL0FIWm9PMUxPUHdqYzEyb2o1bGIwWlNNWTlMaQpVeW9UQ3huREZIVDJIQnlPNCtGRk5pVCtXTU5FTURURWxERXhlano1WVIwb1pZVjN2V2Z5T3l2SlBna1dFU29IClVVcnVvQmRRbU5LUzhCeXhIUmFvcnFJUFRVRGkzUFJIbTlGZERKV1lNTWpnbDZmbmdHWkRQMnpjTlNFZjRGNzYKc2FUK0VhMU1kbjV5akRCNXczaHJvZXBBclc0QVUyR3NTRFZyTHY2UDFiSWV0RDdONjZrT1BBNklIUlRKbUNLLwp2aEJrbGVPMGFwcERzTERDT3hpMkc2Q1BRNDZVYVZUOEhZMk9sQU5nSmtRRDNwYjFXTnlhQlVpRkFnTUJBQUdqClB6QTlNQTRHQTFVZER3RUIvd1FFQXdJRm9EQWRCZ05WSFNVRUZqQVVCZ2dyQmdFRkJRY0RBUVlJS3dZQkJRVUgKQXdJd0RBWURWUjBUQVFIL0JBSXdBREFOQmdrcWhraUc5dzBCQVFzRkFBT0NBUUVBTHVrZ1dxWnRtbkZITlcxYgpqL012ekcxTmJyUEtWYXVobml5RzRWWnRZYzR1Uk5iSGhicEhEdThyamc2dVB1Y0xMdHAzblU2UGw4S2J2WFpiCmplNmJQR2xvV3VBcFIrVW9KRFQ2VEpDK2o2Qm5CSXpWQkNOL21lSWVPQ0hEK1k5L2dtbzRnd2Q4c2F3U0Z1bjMKZTFVekF2cHBwdTVZY05wcU92aUkxT2NjNGdxNTd2V1h1MFRIdUJkM0VtQ2JZRXUzYXhOL25ldnhOYnYxbDFRSQovSzRaOWw3MXFqaEp3SVlBaHUzek5pTWpCU1VTRjJkZnd2NmFnclhSUnN6b1Z4ejE5Mm9qM2pWU215cXZxeVFrCmZXckpsc3VhY1NDdTlKUE44OUQrVXkwVnZXZmhPdmp4cXVRSktwUW9hMzlQci81Q3YweXFKUkFIMkk5Wk1IZEYKNkJQRVBRPT0KLS0tLS1FTkQgQ0VSVElGSUNBVEUtLS0tLQo=
client-key-data: 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