Create kubernetes docker-registry secret from yaml file?
You can write that yaml by yourself, but it will be faster to create it in 2 steps using kubectl
:
- Generate a 'yaml' file. You can use the same command but in dry-run mode and output mode
yaml
.
Here is an example of a command that will save a secret into a 'docker-secret.yaml' file for kubectl
version < 1.18 (check the version by kubectl version --short|grep Client
):
kubectl create secret docker-registry --dry-run=true $secret_name \ --docker-server=<DOCKER_REGISTRY_SERVER> \ --docker-username=<DOCKER_USER> \ --docker-password=<DOCKER_PASSWORD> \ --docker-email=<DOCKER_EMAIL> -o yaml > docker-secret.yaml
For kubectl
version >= 1.18:
kubectl create secret docker-registry --dry-run=client $secret_name \ --docker-server=<DOCKER_REGISTRY_SERVER> \ --docker-username=<DOCKER_USER> \ --docker-password=<DOCKER_PASSWORD> \ --docker-email=<DOCKER_EMAIL> -o yaml > docker-secret.yaml
You can apply the file like any other Kubernetes 'yaml':
kubectl apply -f docker-secret.yaml
UPD, as a question has been updated.
If you are using Helm, here is an official documentation about how to create an ImagePullSecret
.
From a doc:
- First, assume that the credentials are defined in the
values.yaml
file like so:
imageCredentials: registry: quay.io username: someone password: sillyness
- We then define our helper template as follows:
{{- define "imagePullSecret" }}{{- printf "{\"auths\": {\"%s\": {\"auth\": \"%s\"}}}" .Values.imageCredentials.registry (printf "%s:%s" .Values.imageCredentials.username .Values.imageCredentials.password | b64enc) | b64enc }}{{- end }}
- Finally, we use the helper template in a larger template to create the
Secret
manifest:
apiVersion: v1kind: Secretmetadata: name: myregistrykeytype: kubernetes.io/dockerconfigjsondata: .dockerconfigjson: {{ template "imagePullSecret" . }}
You can kubectl apply the output of an imperative command in one line:
kubectl create secret docker-registry --dry-run=true $secret_name \ --docker-server=<DOCKER_REGISTRY_SERVER> \ --docker-username=<DOCKER_USER> \ --docker-password=<DOCKER_PASSWORD> \ --docker-email=<DOCKER_EMAIL> -o yaml | kubectl apply -f -
cat <<EOF | kubectl apply -f ----apiVersion: v1kind: Secretmetadata: name: regcreddata: .dockerconfigjson: $(echo "{\"auths\": {\"https://index.docker.io/v1/\": {\"auth\": \"$(echo "janedoe:xxxxxxxxxxx" | base64)\"}}}" | base64)type: kubernetes.io/dockerconfigjsonEOF