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ollyg/user-ca-rotate.sh

Last active June 25, 2020 10:46
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user-ca-rotate.sh
# curl -f >> onto authorized_keys
# grep a_k for certs
# if more than two lines
# sed out the first N of them
curl -sf https://my-cert.pub >> ~/.ssh/authorized_keys &&
sed -i '' '1!G;h;$!d' ~/.ssh/authorized_keys &&
awk '!/^cert-authority / || ++n < 3' ~/.ssh/authorized_keys > ~/.ssh/authorized_keys.tmp &&
sed '1!G;h;$!d' ~/.ssh/authorized_keys.tmp > ~/.ssh/authorized_keys &&
rm ~/.ssh/authorized_keys.tmp &&
chmod 600 ~/.ssh/authorized_keys
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