Answer
Opaque stores key-values; DockerConfigJson stores registry credentials.
Quick Answer
Opaque type is a generic key-value Secret — base64-encoded arbitrary data like passwords and API keys. DockerConfigJson (kubernetes.io/dockerconfigjson) stores Docker registry credentials — used by kubelet when pulling private images. Kubernetes looks for imagePullSecrets on Pod specs and uses DockerConfigJson Secrets to authenticate to the registry.
S
SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ