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cmd/kgctl/main.go: check port range

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Signed-off-by: leonnicolas <leonloechner@gmx.de>
This commit is contained in:
leonnicolas 2021-09-30 16:18:44 +02:00
parent 16bb0491e2
commit 3320ae3f05
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GPG Key ID: 088D0743E2B65C07
1 changed files with 6 additions and 2 deletions
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8
cmd/kgctl/main.go
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@ -62,7 +62,7 @@ var (
opts struct { opts struct {
backend mesh.Backend backend mesh.Backend
granularity mesh.Granularity granularity mesh.Granularity
port uint32 port int
} }
backend string backend string
granularity string granularity string
@ -71,6 +71,10 @@ var (
) )
func runRoot(_ *cobra.Command, _ []string) error { func runRoot(_ *cobra.Command, _ []string) error {
if opts.port < 1 || opts.port > 1<<16-1 {
return fmt.Errorf("invalid port: port mus be in range [%d:%d], but got %d", 1, 1<<16-1, opts.port)
}
opts.granularity = mesh.Granularity(granularity) opts.granularity = mesh.Granularity(granularity)
switch opts.granularity { switch opts.granularity {
case mesh.LogicalGranularity: case mesh.LogicalGranularity:
@ -120,7 +124,7 @@ func main() {
defaultKubeconfig = filepath.Join(os.Getenv("HOME"), ".kube/config") defaultKubeconfig = filepath.Join(os.Getenv("HOME"), ".kube/config")
} }
cmd.PersistentFlags().StringVar(&kubeconfig, "kubeconfig", defaultKubeconfig, "Path to kubeconfig.") cmd.PersistentFlags().StringVar(&kubeconfig, "kubeconfig", defaultKubeconfig, "Path to kubeconfig.")
cmd.PersistentFlags().Uint32Var(&opts.port, "port", mesh.DefaultKiloPort, "The WireGuard port over which the nodes communicate.") cmd.PersistentFlags().IntVar(&opts.port, "port", mesh.DefaultKiloPort, "The WireGuard port over which the nodes communicate.")
cmd.PersistentFlags().StringVar(&topologyLabel, "topology-label", k8s.RegionLabelKey, "Kubernetes node label used to group nodes into logical locations.") cmd.PersistentFlags().StringVar(&topologyLabel, "topology-label", k8s.RegionLabelKey, "Kubernetes node label used to group nodes into logical locations.")
for _, subCmd := range []*cobra.Command{ for _, subCmd := range []*cobra.Command{