kubernetes.io/dockerconfigjson

A Kubernetes cluster uses the Secret of kubernetes.io/dockerconfigjson type to authenticate with a container registry to pull a private image.

kubectl create secret generic regcred --from-file=.dockerconfigjson=<path/to/.docker/config.json> --type=kubernetes.io/dockerconfigjson 

 Opaque	                                 arbitrary user-defined data
kubernetes.io/service-account-token	ServiceAccount token
kubernetes.io/dockercfg	                serialized ~/.dockercfg file
kubernetes.io/dockerconfigjson	        serialized ~/.docker/config.json file
kubernetes.io/basic-auth	        credentials for basic authentication
kubernetes.io/ssh-auth	                credentials for SSH authentication
kubernetes.io/tls	                data for a TLS client or server
bootstrap.kubernetes.io/token	        bootstrap token data
istio.io/key-and-cert

Related

• Pull an Image from a Private Registry
• Create a Secret based on existing credential
• ~/.docker/config.json

See also

• docker config, ~/.docker/config.json, CredsStore, CredHelpers
• Kubernetes secrets: kubectl [ get | create | describe | delete | secret ] secrets, secret.yml, kind: Secret, secretKeyRef, default-token, imagePullSecrets:, kubernetes.io/dockerconfigjson
• kubernetes.io: ( app | ingress | kubectl | bootstrap | beta | role | pv | annotations | topology ), k8s.io, kubernetes.io/ [ /tls | /ingress.class | /pvc-protection | /enforce-mountable-secrets | /dockerconfigjson ]

https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/#registry-secret-existing-credentials