Add set-rdns commands (#134)

CHANGES.md

@@ -4,6 +4,8 @@
 
 * Add `hcloud ssh-key update` command
 * Add `-u/--user` and `-p/--port` flags to `hcloud server ssh` command
+* Add `hcloud server set-rdns` command
+* Add `hcloud floating-ip set-rdns` command
 
 ## v1.7.0
 

cli/floatingip.go

@@ -23,6 +23,7 @@ func newFloatingIPCommand(cli *CLI) *cobra.Command {
 		newFloatingIPDisableProtectionCommand(cli),
 		newFloatingIPAddLabelCommand(cli),
 		newFloatingIPRemoveLabelCommand(cli),
+		newFloatingIPSetRDNSCommand(cli),
 	)
 	return cmd
 }

cli/floatingip_set_rdns.go

@@ -0,0 +1,61 @@
+package cli
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/hetznercloud/hcloud-go/hcloud"
+	"github.com/spf13/cobra"
+)
+
+func newFloatingIPSetRDNSCommand(cli *CLI) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:                   "set-rdns [FLAGS] FLOATINGIP",
+		Short:                 "Change reverse DNS of a Floating IP",
+		Args:                  cobra.ExactArgs(1),
+		TraverseChildren:      true,
+		DisableFlagsInUseLine: true,
+		PreRunE:               cli.ensureToken,
+		RunE:                  cli.wrap(runFloatingIPSetRDNS),
+	}
+
+	cmd.Flags().StringP("hostname", "r", "", "Hostname to set as a reverse DNS PTR entry")
+	cmd.MarkFlagRequired("hostname")
+
+	cmd.Flags().StringP("ip", "i", "", "IP address for which the reverse DNS entry should be set")
+	return cmd
+}
+
+func runFloatingIPSetRDNS(cli *CLI, cmd *cobra.Command, args []string) error {
+	id, err := strconv.Atoi(args[0])
+	if err != nil {
+		return err
+	}
+
+	floatingIP, _, err := cli.Client().FloatingIP.GetByID(cli.Context, id)
+	if err != nil {
+		return err
+	}
+	if floatingIP == nil {
+		return fmt.Errorf("Floating IP not found: %d", id)
+	}
+
+	ip, _ := cmd.Flags().GetString("ip")
+	if ip == "" {
+		ip = floatingIP.IP.String()
+	}
+
+	hostname, _ := cmd.Flags().GetString("hostname")
+	action, _, err := cli.Client().FloatingIP.ChangeDNSPtr(cli.Context, floatingIP, ip, hcloud.String(hostname))
+	if err != nil {
+		return err
+	}
+
+	if err := cli.ActionProgress(cli.Context, action); err != nil {
+		return err
+	}
+
+	fmt.Printf("Reverse DNS of Floating IP %d changed\n", floatingIP.ID)
+
+	return nil
+}

cli/server.go

@@ -37,6 +37,7 @@ func newServerCommand(cli *CLI) *cobra.Command {
 		newServerSSHCommand(cli),
 		newServerAddLabelCommand(cli),
 		newServerRemoveLabelCommand(cli),
+		newServerSetRDNSCommand(cli),
 	)
 	return cmd
 }

cli/server_set_rdns.go

@@ -0,0 +1,56 @@
+package cli
+
+import (
+	"fmt"
+
+	"github.com/hetznercloud/hcloud-go/hcloud"
+	"github.com/spf13/cobra"
+)
+
+func newServerSetRDNSCommand(cli *CLI) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:                   "set-rdns [FLAGS] SERVER",
+		Short:                 "Change reverse DNS of a server",
+		Args:                  cobra.ExactArgs(1),
+		TraverseChildren:      true,
+		DisableFlagsInUseLine: true,
+		PreRunE:               cli.ensureToken,
+		RunE:                  cli.wrap(runServerSetRDNS),
+	}
+
+	cmd.Flags().StringP("hostname", "r", "", "Hostname to set as a reverse DNS PTR entry")
+	cmd.MarkFlagRequired("hostname")
+
+	cmd.Flags().StringP("ip", "i", "", "IP address for which the reverse DNS entry should be set")
+
+	return cmd
+}
+
+func runServerSetRDNS(cli *CLI, cmd *cobra.Command, args []string) error {
+	idOrName := args[0]
+	server, _, err := cli.Client().Server.Get(cli.Context, idOrName)
+	if err != nil {
+		return err
+	}
+	if server == nil {
+		return fmt.Errorf("server not found: %s", idOrName)
+	}
+	ip, _ := cmd.Flags().GetString("ip")
+	if ip == "" {
+		ip = server.PublicNet.IPv4.IP.String()
+	}
+
+	hostname, _ := cmd.Flags().GetString("hostname")
+	action, _, err := cli.Client().Server.ChangeDNSPtr(cli.Context, server, ip, hcloud.String(hostname))
+	if err != nil {
+		return err
+	}
+
+	if err := cli.ActionProgress(cli.Context, action); err != nil {
+		return err
+	}
+
+	fmt.Printf("Reverse DNS of server %d changed\n", server.ID)
+
+	return nil
+}