i had an issue during the course DO 180 at starting a container image with podman using the command:
podman run -d -p 8080 registry.redhat.io/rhel8/httpd-24
I got an authentication error with the messages:
"unable to retrieve auth token: invalid username/password: unauthorized"
and "error: unable to pull registry.redhat.io/rhel8/http-24"
I resolved this issue by loging in to "registry.redhat.io" using the command:
podman login registry.redhat.io
More informaton are in this page: https://access.redhat.com/RegistryAuthentication
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