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package loadbalancer
import (
"context"
"fmt"
"net"
"github.com/spf13/cobra"
"github.com/hetznercloud/cli/internal/cmd/base"
"github.com/hetznercloud/cli/internal/cmd/cmpl"
"github.com/hetznercloud/cli/internal/cmd/util"
"github.com/hetznercloud/cli/internal/hcapi2"
"github.com/hetznercloud/cli/internal/state"
"github.com/hetznercloud/hcloud-go/v2/hcloud"
)
var AddTargetCommand = base.Cmd{
BaseCobraCommand: func(client hcapi2.Client) *cobra.Command {
cmd := &cobra.Command{
Use: "add-target LOADBALANCER FLAGS",
Short: "Add a target to a Load Balancer",
Args: cobra.ExactArgs(1),
ValidArgsFunction: cmpl.SuggestArgs(cmpl.SuggestCandidatesF(client.LoadBalancer().Names)),
TraverseChildren: true,
DisableFlagsInUseLine: true,
}
cmd.Flags().String("server", "", "Name or ID of the server")
cmd.RegisterFlagCompletionFunc("server", cmpl.SuggestCandidatesF(client.Server().Names))
cmd.Flags().String("label-selector", "", "Label Selector")
cmd.Flags().Bool("use-private-ip", false, "Determine if the Load Balancer should connect to the target via the network")
cmd.Flags().String("ip", "", "Use the passed IP address as target")
return cmd
},
Run: func(ctx context.Context, client hcapi2.Client, waiter state.ActionWaiter, cmd *cobra.Command, args []string) error {
var (
action *hcloud.Action
loadBalancer *hcloud.LoadBalancer
err error
)
idOrName := args[0]
usePrivateIP, _ := cmd.Flags().GetBool("use-private-ip")
serverIDOrName, _ := cmd.Flags().GetString("server")
labelSelector, _ := cmd.Flags().GetString("label-selector")
ipAddr, _ := cmd.Flags().GetString("ip")
if !util.ExactlyOneSet(serverIDOrName, labelSelector, ipAddr) {
return fmt.Errorf("--server, --label-selector, and --ip are mutually exclusive")
}
if loadBalancer, _, err = client.LoadBalancer().Get(ctx, idOrName); err != nil {
return err
}
if loadBalancer == nil {
return fmt.Errorf("Load Balancer not found: %s", idOrName)
}
switch {
case serverIDOrName != "":
server, _, err := client.Server().Get(ctx, serverIDOrName)
if err != nil {
return err
}
if server == nil {
return fmt.Errorf("server not found: %s", serverIDOrName)
}
action, _, err = client.LoadBalancer().AddServerTarget(ctx, loadBalancer, hcloud.LoadBalancerAddServerTargetOpts{
Server: server,
UsePrivateIP: hcloud.Bool(usePrivateIP),
})
if err != nil {
return err
}
case labelSelector != "":
action, _, err = client.LoadBalancer().AddLabelSelectorTarget(ctx, loadBalancer, hcloud.LoadBalancerAddLabelSelectorTargetOpts{
Selector: labelSelector,
UsePrivateIP: hcloud.Bool(usePrivateIP),
})
if err != nil {
return err
}
case ipAddr != "":
ip := net.ParseIP(ipAddr)
if ip == nil {
return fmt.Errorf("invalid ip provided")
}
action, _, err = client.LoadBalancer().AddIPTarget(ctx, loadBalancer, hcloud.LoadBalancerAddIPTargetOpts{
IP: ip,
})
if err != nil {
return err
}
default:
return fmt.Errorf("specify one of --server, --label-selector, or --ip")
}
if err := waiter.ActionProgress(ctx, action); err != nil {
return err
}
fmt.Printf("Target added to Load Balancer %d\n", loadBalancer.ID)
return nil
},
}
|
