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rm.go
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rm.go
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package cliaws
import (
"context"
"os"
"github.com/alexflint/go-arg"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/nathants/libaws/lib"
)
func init() {
lib.Commands["ec2-rm"] = ec2Rm
lib.Args["ec2-rm"] = ec2RmArgs{}
}
type ec2RmArgs struct {
Selectors []string `arg:"positional,required" help:"instance-id | dns-name | private-dns-name | tag | vpc-id | subnet-id | security-group-id | ip-address | private-ip-address"`
Preview bool `arg:"-p,--preview" default:"false"`
Wait bool `arg:"-w,--wait" default:"false"`
}
func (ec2RmArgs) Description() string {
return "\ndelete an instance\n"
}
func ec2Rm() {
var args ec2RmArgs
arg.MustParse(&args)
ctx := context.Background()
fail := true
for _, s := range args.Selectors {
if s != "" {
fail = false
break
}
}
if fail {
lib.Logger.Fatal("error: provide some selectors")
}
instances, err := lib.EC2ListInstances(ctx, args.Selectors, "")
if err != nil {
lib.Logger.Fatal("error: ", err)
}
var ids []*string
for _, instance := range instances {
if *instance.State.Name == ec2.InstanceStateNameTerminated {
continue
}
ids = append(ids, instance.InstanceId)
if *instance.State.Name == ec2.InstanceStateNameRunning || *instance.State.Name == ec2.InstanceStateNameStopped {
lib.Logger.Println(lib.PreviewString(args.Preview)+"terminating:", lib.EC2Name(instance.Tags), *instance.InstanceId)
}
}
if args.Preview {
os.Exit(0)
}
if len(ids) == 0 {
os.Exit(0)
}
_, err = lib.EC2Client().TerminateInstancesWithContext(ctx, &ec2.TerminateInstancesInput{
InstanceIds: ids,
})
if err != nil {
lib.Logger.Fatal("error: ", err)
}
if args.Wait {
err = lib.EC2WaitState(ctx, lib.StringSlice(ids), "terminated")
if err != nil {
lib.Logger.Fatal("error: ", err)
}
}
}