Files
zulip/puppet/kandra/files/install-ssh-keys

58 lines
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Executable File

#!/usr/bin/env bash
set -euo pipefail
args="$(getopt -o '' --long check -- "$@")"
eval "set -- $args"
check=false
while true; do
case "$1" in
--check)
check=true
shift
;;
--)
shift
break
;;
esac
done
username="$1"
shift
homedir="$(getent passwd "$username" | cut -d: -f6)"
sshdir="$homedir/.ssh"
umask 077
workdir=$(mktemp -d)
chown "$username:$username" "$workdir"
cleanup() { ls -al "$workdir" && rm -rf "$workdir"; }
trap cleanup EXIT
umask 033
for ssh_secret_name in "$@"; do
keydata="$(/srv/zulip-aws-tools/bin/aws --output text \
secretsmanager get-secret-value \
--secret-id "$ssh_secret_name" \
--query SecretString)"
for keyfile in $(jq -r 'keys[]' <<<"$keydata"); do
touch "$workdir/$keyfile"
if [[ "$keyfile" != *".pub" ]]; then
chmod 600 "$workdir/$keyfile"
fi
jq -r ".[\"$keyfile\"]" <<<"$keydata" | base64 -d >"$workdir/$keyfile"
chown "$username:$username" "$workdir/$keyfile"
done
done
if [ "$check" = "true" ]; then
diff -rN -x config -x authorized_keys -x known_hosts \
"$workdir/" "$sshdir/"
exit 0
fi
rsync -av --delete \
--exclude config --exclude authorized_keys --exclude known_hosts \
"$workdir/" "$sshdir/"