Files
ssh-netbox-wrapper/internal/resolver/interface_name.go
T
Sebastian UnterschützandClaude Opus 5.5 55e7a5106b fix: interface_name strategy, instance hosts in sftp/scp, alias rewrites
Found by the new Docker test environment against a real NetBox 4.7:

- The interface_name strategy filtered IP addresses with interface_name
  and vminterface_name, which NetBox ignores, so it returned the first
  address of the host instead of the named interface's. Use the real
  filters interface and vminterface; a missing interface (HTTP 400)
  falls through to the next strategy.
- sftp and scp took instance-qualified hosts (prod/web01:/path) for
  local paths, because a "/" comes before the ":". Such arguments are
  remote when the prefix is a configured NetBox instance.
- Shell aliases of instance-qualified hosts ran the shortcut rules on
  "instance/host", so anchored rewrite rules never matched.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-14 12:30:24 +01:00

42 lines
1.3 KiB
Go

package resolver
import (
"context"
"fmt"
"net/url"
"git.zb-server.de/Sebi/ssh-netbox-wrapper/internal/netbox"
)
// InterfaceNameStrategy finds the first IP assigned to a named interface (e.g. "mgmt0", "eth0").
type InterfaceNameStrategy struct {
name string
}
func (s *InterfaceNameStrategy) Name() string { return "interface_name" }
func (s *InterfaceNameStrategy) Resolve(ctx context.Context, entry *netbox.HostEntry, client *netbox.Client) (string, error) {
// NetBox filters IP addresses by interface name with interface= (devices)
// and vminterface= (VMs); unknown parameters would be ignored silently and
// return every address of the host. A missing interface is an HTTP 400,
// which lets the chain try the next strategy.
var filterParam string
switch entry.Kind {
case "device":
filterParam = fmt.Sprintf("device_id=%d&interface=%s", entry.ID, url.QueryEscape(s.name))
case "vm":
filterParam = fmt.Sprintf("virtual_machine_id=%d&vminterface=%s", entry.ID, url.QueryEscape(s.name))
default:
return "", fmt.Errorf("unknown kind %q", entry.Kind)
}
ips, err := client.GetIPsWithFilterForHost(ctx, *entry, filterParam)
if err != nil {
return "", fmt.Errorf("fetching IPs for interface %q: %w", s.name, err)
}
if len(ips) == 0 {
return "", ErrNoIP
}
return ips[0], nil
}