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package loadbalancer
import (
"context"
"fmt"
"github.com/spf13/cobra"
"github.com/hetznercloud/cli/internal/cmd/base"
"github.com/hetznercloud/cli/internal/cmd/cmpl"
"github.com/hetznercloud/cli/internal/hcapi2"
"github.com/hetznercloud/cli/internal/state"
"github.com/hetznercloud/hcloud-go/v2/hcloud"
)
var ChangeAlgorithmCommand = base.Cmd{
BaseCobraCommand: func(client hcapi2.Client) *cobra.Command {
cmd := &cobra.Command{
Use: "change-algorithm LOADBALANCER FLAGS",
Short: "Changes the algorithm of a Load Balancer",
Args: cobra.ExactArgs(1),
ValidArgsFunction: cmpl.SuggestArgs(cmpl.SuggestCandidatesF(client.LoadBalancer().Names)),
TraverseChildren: true,
DisableFlagsInUseLine: true,
}
cmd.Flags().String("algorithm-type", "", "The new algorithm of the Load Balancer")
cmd.RegisterFlagCompletionFunc("algorithm-type", cmpl.SuggestCandidates(
string(hcloud.LoadBalancerAlgorithmTypeRoundRobin),
string(hcloud.LoadBalancerAlgorithmTypeLeastConnections),
))
cmd.MarkFlagRequired("algorithm-type")
return cmd
},
Run: func(ctx context.Context, client hcapi2.Client, waiter state.ActionWaiter, cmd *cobra.Command, args []string) error {
idOrName := args[0]
algorithm, _ := cmd.Flags().GetString("algorithm-type")
loadBalancer, _, err := client.LoadBalancer().Get(ctx, idOrName)
if err != nil {
return err
}
if loadBalancer == nil {
return fmt.Errorf("Load Balancer not found: %s", idOrName)
}
action, _, err := client.LoadBalancer().ChangeAlgorithm(ctx, loadBalancer, hcloud.LoadBalancerChangeAlgorithmOpts{Type: hcloud.LoadBalancerAlgorithmType(algorithm)})
if err != nil {
return err
}
if err := waiter.ActionProgress(ctx, action); err != nil {
return err
}
fmt.Printf("Algorithm for Load Balancer %d was changed\n", loadBalancer.ID)
return nil
},
}
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