The “kubectl config” config command allows you to do many thing, like setting credentials or changing the context.
You can get, for example, human readable version of the config file right in your console by running:
$ kubectl config view
You get:
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: DATA+OMITTED
server: https://172.17.0.21:6443
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: kubernetes-admin
name: kubernetes-admin@kubernetes
current-context: kubernetes-admin@kubernetes
kind: Config
preferences: {}
users:
- name: kubernetes-admin
user:
client-certificate-data: REDACTED
client-key-data: REDACTED
As you can see there´s CA certificate.
You can find the same information in full format in the file /etc/kubernetes/admin.conf, whose content is like:
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUN5RENDQWJDZ0F3SUJBZ0lCQURBTkJna3Foa2lHOXcwQkFRc0ZBREFWTVJNd0VRWURWUVFERXdwcmRXSmwKY201bGRHVnpNQjRYRFRJeU1ESXhOakUzTVRVeU9Gb1hEVE15TURJeE5ERTNNVFV5T0Zvd0ZURVRNQkVHQTFVRQpBeE1LYTNWaVpYSnVaWFJsY3pDQ0FTSXdEUVlKS29aSWh2Y05BUUVCQlFBRGdnRVBBRENDQVFvQ2dnRUJBSzZXCmpUSC81bDQ5V3NXaUw0ZnN3T3VVS202NXBSZGZtMk4xMG0wVEY4cElnM2RycSsvVHlqZVA4dDEyc01QdGFkUFQKRWhqTFA4NlpzZmVsbWk4WjZsZEhEWHdlTHZNU3ZWT2ZXL0lMRU9BK281R2c4MnYwUEVUZXFhZXE0KzRMdEdhdgplQ3RmclRHVE1zRkE0c3NxSkxyV3BZRmNHR1Qyd0lpY0t6R3NRVjMrZFk0djd0UTVaN3B6V2Nac3BLUFBBS0lpCjFOQm4vTXJUejZnYkhJNkxlV0k0dCtjODdHcjBOL3krRkFWdzljSGh6SGhjNit4ekRIWXR3WHlyWi9TaVFkdk4KRXAvaGNTT2IzK010WDhQMFRRWnkyT0FKK0FKZk5YNFlKb0lGbXprTzVjVWRtakJyeEF5Yk1vd2ZNUzRmR0RhcApQWUsxM2Rsc0pjdnUzMURtcldzQ0F3RUFBYU1qTUNFd0RnWURWUjBQQVFIL0JBUURBZ0trTUE4R0ExVWRFd0VCCi93UUZNQU1CQWY4d0RRWUpLb1pJaHZjTkFRRUxCUUFEZ2dFQkFHV0pTdmxiQ3IyUGNvYTgvaHJGeEVROWluZXkKRmw3ekVSMHo0bW1ocnFkbjU4OTM1UTZQOXNVbjlvUm1Wa212NlFvbWpZYnZuMnhIK1BRVEdRdmRoRWJLNVFaUAoyejc0OTEydHpTOUE3S0thcEpaYWJTZWozcm0xQ2xSckg5Tzc5M3JEYmxyZ1QrcVduRVR4RzZEK1k0QnFVODJiClUzL3MrbVVxQ2Q2allzMk12RURZRFpoYm1ORkJYY1BSUm85Tk9qdlZPdVhEU0RBOVFWMlp5VjhPT3FFY0htRzUKQ2d3YTg0OXMxdmdGNXRQR1ZoU1MxVnR2bHlVVjlPUDVzOVhQZnh3Vkx4Zk0rWUh5c093ajJJWXhMdlozZlpWcwpDaFdSb1E1T1JsdDBtN1FPU3F4TDlZZlUybytXSTViZWMwWVFIRDhNeUZEYnJNZG02YnZQdlh4R3lZaz0KLS0tLS1FTkQgQ0VSVElGSUNBVEUtLS0tLQo=
server: https://172.17.0.21:6443
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: kubernetes-admin
name: kubernetes-admin@kubernetes
current-context: kubernetes-admin@kubernetes
kind: Config
preferences: {}
users:
- name: kubernetes-admin
user:
client-certificate-data: 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
client-key-data: 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