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I am trying to setup a basic authentication in docker registry, followed the steps mentioned in docker docs.

After the below docker run command

docker run \
  --entrypoint htpasswd \
  registry:2 -Bbn testuser testpassword > auth/htpasswd

I am getting an error as:

docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: "htpasswd": executable file not found in $PATH": unknown

Has anyone else encountered this issue & what was the fix forward ?

Answers

htpasswd binary is no longer provided in registry docker image, you can generate the htpasswd on any machine where htpasswd is available (provided by httpd-tools rpm on CentOS/Redhat)

htpasswd -Bbn testuser testpassword > auth/htpasswd