Add command to list endpoint groups

cmd/endpointGroup.go

@@ -0,0 +1,15 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+// endpointGroupCmd represents the endpoint group command
+var endpointGroupCmd = &cobra.Command{
+	Use:   "group",
+	Short: "Manage endpoint groups",
+}
+
+func init() {
+	endpointCmd.AddCommand(endpointGroupCmd)
+}

cmd/endpointGroupList.go

@@ -0,0 +1,65 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"text/template"
+
+	"github.com/greenled/portainer-stack-utils/common"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
+
+	"github.com/spf13/cobra"
+)
+
+// endpointGroupListCmd represents the endpoint group list command
+var endpointGroupListCmd = &cobra.Command{
+	Use:     "list",
+	Short:   "List endpoint groups",
+	Aliases: []string{"ls"},
+	Run: func(cmd *cobra.Command, args []string) {
+		client, err := common.GetClient()
+		common.CheckError(err)
+
+		logrus.Debug("Getting endpoint groups")
+		endpointGroups, err := client.GetEndpointGroups()
+		common.CheckError(err)
+
+		if viper.GetString("endpoint.group.list.format") != "" {
+			// Print endpoint group fields formatted
+			template, templateParsingErr := template.New("endpointGroupTpl").Parse(viper.GetString("endpoint.group.list.format"))
+			common.CheckError(templateParsingErr)
+			for _, g := range endpointGroups {
+				templateExecutionErr := template.Execute(os.Stdout, g)
+				common.CheckError(templateExecutionErr)
+				fmt.Println()
+			}
+		} else {
+			// Print all endpoint group fields as a table
+			writer, err := common.NewTabWriter([]string{
+				"ENDPOINT GROUP ID",
+				"NAME",
+				"DESCRIPTION",
+			})
+			common.CheckError(err)
+			for _, g := range endpointGroups {
+				_, err := fmt.Fprintln(writer, fmt.Sprintf(
+					"%v\t%s\t%s",
+					g.Id,
+					g.Name,
+					g.Description,
+				))
+				common.CheckError(err)
+			}
+			flushErr := writer.Flush()
+			common.CheckError(flushErr)
+		}
+	},
+}
+
+func init() {
+	endpointGroupCmd.AddCommand(endpointGroupListCmd)
+
+	endpointGroupListCmd.Flags().String("format", "", "Format output using a Go template.")
+	viper.BindPFlag("endpoint.group.list.format", endpointGroupListCmd.Flags().Lookup("format"))
+}