install: make sure runtime configuration is ok (host privkey exists)

function61 · Dec 25, 2021 · c895557 · c895557
1 parent f166c96
commit c895557
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/cmd/function22/helpers.go b/cmd/function22/helpers.go
@@ -25,6 +25,15 @@ func installEntrypoint() *cobra.Command {
 		Args:  cobra.NoArgs,
 		Run: func(_ *cobra.Command, _ []string) {
 			osutil.ExitIfError(func() error {
+				hostKeyExists, err := osutil.Exists(defaultHostKeyFile)
+				if err != nil {
+					return err
+				}
+
+				if !hostKeyExists { // pro-tip
+					return errors.New("host key doesn't exist. create it by running $ " + os.Args[0] + " host-key-generate")
+				}
+
 				if allowedUsers == "" {
 					return errors.New("you need to specify allowed-users")
 				}