Get clusters states if a cluster was eksctl created

pkg/apis/eksctl.io/v1alpha5/assets/schema.json

@@ -384,6 +384,9 @@
           },
           "type": "array"
         },
+        "eksctlCreated": {
+          "$ref": "#/definitions/EKSCTLCreated"
+        },
         "endpoint": {
           "type": "string"
         },
@@ -395,7 +398,8 @@
         "endpoint",
         "certificateAuthorityData",
         "arn",
-        "stackName"
+        "stackName",
+        "eksctlCreated"
       ],
       "additionalProperties": false,
       "description": "hold read-only attributes of a cluster",
@@ -495,6 +499,9 @@
       "description": "holds global subnet and all child subnets",
       "x-intellij-html-description": "holds global subnet and all child subnets"
     },
+    "EKSCTLCreated": {
+      "type": "string"
+    },
     "FargateProfile": {
       "required": [
         "name"

pkg/apis/eksctl.io/v1alpha5/types.go

@@ -466,12 +466,15 @@ type KubernetesNetworkConfig struct {
 	ServiceIPv4CIDR string `json:"serviceIPv4CIDR,omitempty"`
 }
 
+type EKSCTLCreated string
+
 // ClusterStatus hold read-only attributes of a cluster
 type ClusterStatus struct {
-	Endpoint                 string `json:"endpoint,omitempty"`
-	CertificateAuthorityData []byte `json:"certificateAuthorityData,omitempty"`
-	ARN                      string `json:"arn,omitempty"`
-	StackName                string `json:"stackName,omitempty"`
+	Endpoint                 string        `json:"endpoint,omitempty"`
+	CertificateAuthorityData []byte        `json:"certificateAuthorityData,omitempty"`
+	ARN                      string        `json:"arn,omitempty"`
+	StackName                string        `json:"stackName,omitempty"`
+	EKSCTLCreated            EKSCTLCreated `json:"eksctlCreated,omitempty"`
 }
 
 // String returns canonical representation of ClusterMeta

pkg/ctl/get/cluster.go

@@ -2,6 +2,15 @@ package get
 
 import (
 	"fmt"
+	"os"
+	"strings"
+	"time"
+
+	awseks "github.com/aws/aws-sdk-go/service/eks"
+	"k8s.io/apimachinery/pkg/util/sets"
+
+	"github.com/weaveworks/eksctl/pkg/eks"
+	"github.com/weaveworks/eksctl/pkg/printers"
 
 	"github.com/kris-nova/logger"
 	"github.com/spf13/cobra"
@@ -65,5 +74,99 @@ func doGetCluster(cmd *cmdutils.Cmd, params *getCmdParams, listAllRegions bool)
 		return err
 	}
 
-	return ctl.ListClusters(cfg.Metadata.Name, params.chunkSize, params.output, listAllRegions)
+	if cfg.Metadata.Name == "" {
+		return getAndPrinterClusters(ctl, params, listAllRegions)
+	}
+
+	return getAndPrintCluster(cfg, ctl, params)
+}
+
+func getAndPrinterClusters(ctl *eks.ClusterProvider, params *getCmdParams, listAllRegions bool) error {
+
+	printer, err := printers.NewPrinter(params.output)
+	if err != nil {
+		return err
+	}
+
+	if params.output == "table" {
+		addGetClustersSummaryTableColumns(printer.(*printers.TablePrinter))
+	}
+
+	clusters, err := ctl.ListClusters(params.chunkSize, listAllRegions)
+	if err != nil {
+		return err
+	}
+
+	return printer.PrintObjWithKind("clusters", clusters, os.Stdout)
+}
+
+func addGetClustersSummaryTableColumns(printer *printers.TablePrinter) {
+	printer.AddColumn("NAME", func(c *api.ClusterConfig) string {
+		return c.Metadata.Name
+	})
+	printer.AddColumn("REGION", func(c *api.ClusterConfig) string {
+		return c.Metadata.Region
+	})
+	printer.AddColumn("EKSCTL CREATED", func(c *api.ClusterConfig) api.EKSCTLCreated {
+		return c.Status.EKSCTLCreated
+	})
+}
+
+func getAndPrintCluster(cfg *api.ClusterConfig, ctl *eks.ClusterProvider, params *getCmdParams) error {
+	printer, err := printers.NewPrinter(params.output)
+	if err != nil {
+		return err
+	}
+
+	if params.output == "table" {
+		addGetClusterSummaryTableColumns(printer.(*printers.TablePrinter))
+	}
+
+	cluster, err := ctl.GetCluster(cfg.Metadata.Name)
+
+	if err != nil {
+		return err
+	}
+
+	if err := printer.PrintObjWithKind("clusters", []*awseks.Cluster{cluster}, os.Stdout); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func addGetClusterSummaryTableColumns(printer *printers.TablePrinter) {
+	printer.AddColumn("NAME", func(c *awseks.Cluster) string {
+		return *c.Name
+	})
+	printer.AddColumn("VERSION", func(c *awseks.Cluster) string {
+		return *c.Version
+	})
+	printer.AddColumn("STATUS", func(c *awseks.Cluster) string {
+		return *c.Status
+	})
+	printer.AddColumn("CREATED", func(c *awseks.Cluster) string {
+		return c.CreatedAt.Format(time.RFC3339)
+	})
+	printer.AddColumn("VPC", func(c *awseks.Cluster) string {
+		return *c.ResourcesVpcConfig.VpcId
+	})
+	printer.AddColumn("SUBNETS", func(c *awseks.Cluster) string {
+		subnets := sets.NewString()
+		for _, subnetid := range c.ResourcesVpcConfig.SubnetIds {
+			if api.IsSetAndNonEmptyString(subnetid) {
+				subnets.Insert(*subnetid)
+			}
+		}
+		return strings.Join(subnets.List(), ",")
+	})
+	printer.AddColumn("SECURITYGROUPS", func(c *awseks.Cluster) string {
+		groups := sets.NewString()
+		for _, sg := range c.ResourcesVpcConfig.SecurityGroupIds {
+			if api.IsSetAndNonEmptyString(sg) {
+				groups.Insert(*sg)
+			}
+		}
+		return strings.Join(groups.List(), ",")
+	})
 }