add flag to gen config auto backup

Author: 0xbcdev

cmd/node/auto_backup_priv_validator_state.go

@@ -18,6 +18,7 @@ import (
 const (
 	flagKeep                   = "keep"
 	flagBinaryKillByAutoBackup = "binary"
+	flagGenSetup               = "gen-setup"
 )
 
 const (
@@ -91,6 +92,43 @@ func GetAutoBackupPrivValidatorStateCmd() *cobra.Command {
 			_, binaryNameToKill := path.Split(binaryPathToKill)
 			fmt.Println("INF: binary to kill:", binaryNameToKill, "at", binaryPathToKill)
 
+			if cmd.Flags().Changed(flagGenSetup) {
+				const serviceFileName = "auto-backup-priv-validator-state"
+				fmt.Println("Input chain name (eg: Cosmos Hub):")
+				chainName := utils.ReadText(false)
+				fmt.Println("Mainnet or Testnet?")
+				networkType := utils.ReadText(false)
+				fmt.Println("INF: setup guide:")
+				fmt.Println("1. Create service file")
+				fmt.Println("> sudo vi /etc/systemd/system/" + serviceFileName + ".service")
+				fmt.Printf(`[Unit]
+Description=Auto backup priv_validator_state.json for Validator on %s %s
+After=network.target
+#
+[Service]
+User=%s
+ExecStart=%s/go/bin/%s start %s --%s %s --%s %d
+RestartSec=1
+Restart=on-failure
+LimitNOFILE=1024
+#
+[Install]
+WantedBy=multi-user.target
+`, chainName, networkType, currentUser.Username, currentUser.HomeDir, constants.BINARY_NAME, nodeHomeDirectory, flagBinaryKillByAutoBackup, binaryPathToKill, flagKeep, keepRecent)
+				fmt.Println("2. Setup visudo")
+				fmt.Println("> sudo visudo")
+				fmt.Printf(strings.ReplaceAll(strings.ReplaceAll(`# Allow user @USER@ to manage @SVC@ service
+@USER@ ALL= NOPASSWD: /usr/bin/systemctl start @SVC@
+@USER@ ALL= NOPASSWD: /usr/bin/systemctl stop @SVC@
+@USER@ ALL= NOPASSWD: /usr/bin/systemctl restart @SVC@
+@USER@ ALL= NOPASSWD: /usr/bin/systemctl enable @SVC@ # Do not allow disable
+@USER@ ALL= NOPASSWD: /usr/bin/systemctl status @SVC@
+`, "@USER@", currentUser.Username), "@SVC@", serviceFileName))
+				fmt.Println("3. Enable service to automatically run at startup")
+				fmt.Println("> sudo systemctl daemon-reload && sudo systemctl enable " + serviceFileName + ".service")
+				return
+			}
+
 			privValStateJsonFilePath := path.Join(nodeHomeDirectory, "data", "priv_validator_state.json")
 			fmt.Println("INF: priv_validator_state.json file path:", privValStateJsonFilePath)
 
@@ -288,6 +326,7 @@ How to recover:
 
 	cmd.Flags().Int(flagKeep, 3, "Keep the last N backups")
 	cmd.Flags().String(flagBinaryKillByAutoBackup, "", "Absolute path of the chain binary to be killed by process when priv_validator_state.json has problem")
+	cmd.Flags().Bool(flagGenSetup, false, "Display guide to setup instead of running business logic")
 
 	return cmd
 }