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feat:
instances category; instances list
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Rafael Gumieri
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Nov 9, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
|
||
| func instancesRun(cmd *cobra.Command, args []string) { | ||
| cmd.Help() | ||
| } | ||
|
|
||
| var instancesCmd = &cobra.Command{ | ||
| Use: "instances [command]", | ||
| Short: "Commands to manage ECS instances", | ||
| Aliases: []string{"instance", "i"}, | ||
| Run: instancesRun, | ||
| } | ||
|
|
||
| func init() { | ||
| rootCmd.AddCommand(instancesCmd) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,194 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "strconv" | ||
| "strings" | ||
| "text/tabwriter" | ||
|
|
||
| "github.com/aws/aws-sdk-go/aws" | ||
| "github.com/aws/aws-sdk-go/service/ec2" | ||
| "github.com/aws/aws-sdk-go/service/ecs" | ||
| "github.com/spf13/cobra" | ||
| "github.com/spf13/viper" | ||
| ) | ||
|
|
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| // CompleteInstance has both ECS and EC2 instance description | ||
| type CompleteInstance struct { | ||
| EC2 *ec2.Instance | ||
| ECS *ecs.ContainerInstance | ||
| } | ||
|
|
||
| // SpotFleetRequestID get the Spot Fleet Request ID from the EC2 tags | ||
| func (i *CompleteInstance) SpotFleetRequestID() *string { | ||
| for _, tag := range i.EC2.Tags { | ||
| if aws.StringValue(tag.Key) == "aws:ec2spot:fleet-request-id" { | ||
| return tag.Value | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
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| func (i *CompleteInstance) formatProperty(property string, header bool) string { | ||
| switch property { | ||
| case "instance-id": | ||
| if header { | ||
| return "Instance ID" | ||
| } | ||
|
|
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| return aws.StringValue(i.EC2.InstanceId) | ||
|
|
||
| case "ami-id": | ||
| if header { | ||
| return "AMI ID" | ||
| } | ||
|
|
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| return aws.StringValue(i.EC2.ImageId) | ||
|
|
||
| case "sfr-id": | ||
| if header { | ||
| return "Spot Fleet request ID" | ||
| } | ||
|
|
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| return aws.StringValue(i.SpotFleetRequestID()) | ||
|
|
||
| case "running-tasks": | ||
| if header { | ||
| return "Tasks" | ||
| } | ||
|
|
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| return strconv.FormatInt(aws.Int64Value(i.ECS.RunningTasksCount), 10) | ||
|
|
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| case "status": | ||
| if header { | ||
| return "Status" | ||
| } | ||
|
|
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| return aws.StringValue(i.ECS.Status) | ||
|
|
||
| case "status-reason": | ||
| if header { | ||
| return "Status reason" | ||
| } | ||
|
|
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| return aws.StringValue(i.ECS.StatusReason) | ||
|
|
||
| case "agent-connected": | ||
| if header { | ||
| return "agent connected?" | ||
| } | ||
|
|
||
| if aws.BoolValue(i.ECS.AgentConnected) { | ||
| return "Yes" | ||
| } | ||
|
|
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| return "No" | ||
|
|
||
| case "launch-time": | ||
| if header { | ||
| return "Status" | ||
| } | ||
|
|
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| return aws.TimeValue(i.EC2.LaunchTime).Format("2006-01-02T15:04:05") | ||
|
|
||
| } | ||
|
|
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| return "" | ||
| } | ||
|
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| func instancesListRun(cmd *cobra.Command, instances []string) { | ||
| clustersDescription, err := ecsI.DescribeClusters(&ecs.DescribeClustersInput{ | ||
| Clusters: []*string{ | ||
| aws.String(viper.GetString("cluster")), | ||
| }, | ||
| }) | ||
|
|
||
| t.Must(err) | ||
|
|
||
| if len(clustersDescription.Clusters) == 0 { | ||
| t.Exitln("Source Cluster informed not found") | ||
| } | ||
|
|
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| c := clustersDescription.Clusters[0] | ||
|
|
||
| instancesList, err := ecsI.ListContainerInstances(&ecs.ListContainerInstancesInput{ | ||
| Cluster: c.ClusterName, | ||
| }) | ||
|
|
||
| t.Must(err) | ||
|
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| instancesDescription, err := ecsI.DescribeContainerInstances(&ecs.DescribeContainerInstancesInput{ | ||
| Cluster: c.ClusterName, | ||
| ContainerInstances: instancesList.ContainerInstanceArns, | ||
| }) | ||
| t.Must(err) | ||
|
|
||
| ec2InstancesIDs := make([]*string, 0) | ||
| completeInstances := make([]*CompleteInstance, 0) | ||
| for _, instance := range instancesDescription.ContainerInstances { | ||
| ec2InstancesIDs = append(ec2InstancesIDs, instance.Ec2InstanceId) | ||
| completeInstances = append(completeInstances, &CompleteInstance{ECS: instance}) | ||
| } | ||
|
|
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| ec2Description, err := ec2I.DescribeInstances(&ec2.DescribeInstancesInput{InstanceIds: ec2InstancesIDs}) | ||
| t.Must(err) | ||
|
|
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| for _, reservation := range ec2Description.Reservations { | ||
| for _, instance := range reservation.Instances { | ||
| for _, completeInstance := range completeInstances { | ||
| if aws.StringValue(completeInstance.ECS.Ec2InstanceId) != aws.StringValue(instance.InstanceId) { | ||
| continue | ||
| } | ||
|
|
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| completeInstance.EC2 = instance | ||
| } | ||
| } | ||
| } | ||
|
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| properties := viper.GetStringSlice("properties") | ||
|
|
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| header := []string{} | ||
| for _, p := range properties { | ||
| header = append(header, completeInstances[0].formatProperty(p, true)) | ||
| } | ||
|
|
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| w := tabwriter.NewWriter(os.Stdout, 1, 1, 1, ' ', 0) | ||
| fmt.Fprintln(w, strings.Join(header, "\t")) | ||
|
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| for _, i := range completeInstances { | ||
| line := []string{} | ||
| for _, p := range properties { | ||
| line = append(line, i.formatProperty(p, false)) | ||
| } | ||
| fmt.Fprintln(w, strings.Join(line, "\t")) | ||
| } | ||
|
|
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| w.Flush() | ||
| } | ||
|
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| var instancesListCmd = &cobra.Command{ | ||
| Use: "list", | ||
| Short: "List instances of specified cluster", | ||
| Run: instancesListRun, | ||
| } | ||
|
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| func init() { | ||
| instancesCmd.AddCommand(instancesListCmd) | ||
|
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| flags := instancesListCmd.Flags() | ||
|
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| flags.StringP("cluster", "c", "", requiredSpec+clusterSpec) | ||
| viper.BindPFlag("cluster", instancesListCmd.Flags().Lookup("cluster")) | ||
|
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| defaultColumns := []string{ | ||
| "instance-id", | ||
| "running-tasks", | ||
| "status", | ||
| "agent-connected", | ||
| } | ||
|
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| flags.StringSliceP("properties", "p", defaultColumns, "properties to be listed as column\n") | ||
|
|
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| viper.BindPFlag("properties", instancesListCmd.Flags().Lookup("properties")) | ||
| } |
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