fix: [vps] make `vps install backup` compatible with latest ``openssh-client``'s version.

bin/0km

@@ -746,7 +746,7 @@ vps_install_backup() {
     key="${out%\'*}"
     key="${key##*\'}"
 
-    if ! [[ "$key" =~ ^"ssh-rsa "[a-zA-Z0-9/+]+" "[a-zA-Z0-9._-]+"@"[a-zA-Z0-9._-]+$ ]]; then
+    if ! [[ "$key" =~ ^"ssh-rsa "[a-zA-Z0-9/+=]+" "[a-zA-Z0-9._-]+"@"[a-zA-Z0-9._-]+$ ]]; then
         err "Unexpected output from 'vps install backup $server'. Can't find key."
         echo "$out" | prefix " ${GRAY}|$NORMAL " >&2
         echo " Extracted key:" >&2

bin/vps

@@ -421,7 +421,10 @@ EOF
 
     info "You can run this following command from an host having admin access to $dest:"
     echo "   (Or send it to a backup admin of $dest)" >&2
-    public_key=$(ssh-keygen -y -f <(e "$private_key"$'\n'))
+    ## We remove ending label (label will be added or not in the
+    ## private key, and thus here, depending on the version of
+    ## openssh-client)
+    public_key=$(ssh-keygen -y -f <(e "$private_key"$'\n') | sed -r 's/ [^ ]+@[^ ]+$//')
     echo "ssh ${ssh_options[@]} myadmin@$dest ssh-key add '$public_key compose@$host'"
 }