add ssh key example
First time contribution to NERSC docs: I added an example of how to specify which sshproxy key to use for collaboration accounts, i.e.
ssh -i $HOME/.ssh/your_collab_acct your_collab_acct@perlmutter-p1.nersc.gov
Beyond the baseline: there is probably a one time update to .ssh/config so that simple
ssh your_collab_acct@perlmutter-p1.nersc.gov
would automatically pickup the correct key
while at the same time not breaking ssh your_username@perlmutter-p1.nersc.gov
. I don't know what that is,
but it might be better to document that than document the ssh -i ...
example.
The main point of this PR is that the current docs specify how to use sshproxy.sh to create the collaboration account key, without the extra hint of how to get ssh to actually use that key instead of the personal account key.
Question: is "perlmutter-p1" an acceptable example host, or would you prefer "cori" or "saul-p1"? It's unclear to me if "-p1" will remain in the name after phase 2 arrives and everything is integrated.
Submitters and reviewers please make sure
-
internal links are relative and to the .md file -
avoid links named "here" -
alt-text for images is descriptive -
doesn't duplicate existing content -
spell check -
renders correctly -
does not include any identifiable information (real usernames, project names, etc)