runpodctl cli not installed on some containers with custom images

Is runpodctl cli meant to be installed on all images? I have been intermitantly getting the error

Error during self-termination: [Errno 2] No such file or directory: 'runpodctl'

Error during self-termination: [Errno 2] No such file or directory: 'runpodctl'

Error during self-termination: [Errno 2] No such file or directory: 'runpodctl'

Error during self-termination: [Errno 2] No such file or directory: 'runpodctl'.

I am using a custom docker image