I need to add a key to my pre-existing Digital Ocean Droplit that I can use as a single-purpose key inside of a GitHub Action to ssh into the Droplit.
➜ ssh-keygenGenerating public/private rsa key pair.Enter file in which to save the key (/Users/chris/.ssh/id_rsa): /Users/chris/.ssh/corgo-bot_rsaEnter passphrase (empty for no passphrase):Enter same passphrase again:Your identification has been saved in /Users/chris/.ssh/corgo-bot_rsa.Your public key has been saved in /Users/chris/.ssh/corgo-bot_rsa.pub.The key fingerprint is:SHA256:8hvKaFfL2tYW8Bp+rGA8PRnnTIdm+Zdzzxhj1laXN+s chris@coreThe key's randomart image is:+---[RSA 2048]----+| || || || . o .|| . SoB . o+|| . +oXoo o*|| =+**o.. O.+|| .+.=*+= +.O.|| ...+o++ .Eo|+----[SHA256]-----+
xxx.xx.xx.xx with the ip address of your droplit, we can use
scp to upload our newly generated public key.
scp ~/.ssh/corgo-bot_rsa.pub email@example.com:/opt/corgo-bot_rsa.pub
We then also need to add it to the end of the
~/.ssh/authorized_keys file. We can use this by taking advantage of
>> which will append output to a file.
ssh firstname.lastname@example.org ~/opt/corgo-bot_rsa.pub >> ~/.ssh/authorized_keys
Then we can ssh in and test to make sure the key works
ssh -i ~/.ssh/corgo-bot_rsa email@example.com