cm2kc
is a CLI tool used to convert a clustermap file to a kubeconfig file.
go run ./prow/cmd/cm2kc <options>
The following is a list of supported options for cm2kc
:
-i, --input string Input clustermap file. (default "/dev/stdin")
-o, --output string Output kubeconfig file. (default "/dev/stdout")
Add a kubeconfig file in a secret: kubeconfig
from a clustermap file in another secret: build-cluster
for context: my-context
.
The following command will:
- Get a clustermap formatted secret:
build-cluster
in key:cluster
for context:my-context
. - Base64 decode the secret.
- Convert the clustermap data to a kubeconfig format.
- Create a kubeconfig formatted secret:
kubeconfig
in key:config
for context:my-context
from the converted data.
kubectl --context=my-context get secrets build-cluster -o jsonpath='{.data.cluster}' |
base64 -d |
go run ./prow/cmd/cm2kc |
kubectl --context=my-context create secret generic kubeconfig --from-file=config=/dev/stdin
Lastly, to begin using this in Prow, update the volume mount and replace --build-cluster
with --kubeconfig
in the deployment of each relevant Prow component (e.g. crier, deck, plank, and sinker).
Create a kubeconfig file at path /path/to/kubeconfig.yaml
from a clustermap file at path /path/to/clustermap.yaml
.
Ensure the clustermap file exists at the specified --input
path:
# /path/to/clustermap.yaml
default:
clientCertificate: fake-default-client-cert
clientKey: fake-default-client-key
clusterCaCertificate: fake-default-ca-cert
endpoint: https://1.2.3.4
build:
clientCertificate: fake-build-client-cert
clientKey: fake-build-client-key
clusterCaCertificate: fake-build-ca-cert
endpoint: https://5.6.7.8
Execute cm2kc
specifying an --input
path to the clustermap file and an --output
path to the desired location of the generated kubeconfig file:
go run ./prow/cmd/cm2kc --input=/path/to/clustermap.yaml --output=/path/to/kubeconfig.yaml
The following kubeconfig file will be created at the specified --output
path:
# /path/to/kubeconfig.yaml
apiVersion: v1
clusters:
- name: default
cluster:
certificate-authority-data: fake-default-ca-cert
server: https://1.2.3.4
- name: build
cluster:
certificate-authority-data: fake-build-ca-cert
server: https://5.6.7.8
contexts:
- name: default
context:
cluster: default
user: default
- name: build
context:
cluster: build
user: build
current-context: default
kind: Config
preferences: {}
users:
- name: default
user:
client-certificate-data: fake-default-ca-cert
client-key-data: fake-default-ca-cert
- name: build
user:
client-certificate-data: fake-build-ca-cert
client-key-data: fake-build-ca-cert