Installing OpenSSH on the Alpine Docker Container

Question

When running the alpine docker container the first time and attempting an openssh install, the following happens:

ole@T:~$ docker run -it --rm alpine /bin/ash
/          


        

Answer 1

As the answer is already given but I will add up something.

In the new version, If you want to install something without caching things locally, which is recommended for keeping your containers small, include the --no-cache flag. Example:

apk add --no-cache openssh

This is a small gain, it keeps you from having the common rm -rf /var/cache/apk/* at the end of your Dockerfile.