Core-Zero Import (#5288)

* initial core-zero import implementation

* Update /config/import openapi description and use PUT instead of POST

* update import ui tests

* Add 413 as a possible response for /config/import

* Options/Settings type conversion tests and related bugfixes

* Fixes for proto type conversion and tests

* Update core-zero import client

* Update core-zero import client

* Update import api and environment detection

* update go.mod

* remove old testdata

* Remove usage of deleted setting after merge

* remove extra newline from --version output

internal/zero/cmd/command_root.go

@@ -0,0 +1,71 @@
+package cmd
+
+import (
+	"context"
+	"errors"
+
+	zero "github.com/pomerium/pomerium/internal/zero/api"
+	"github.com/spf13/cobra"
+)
+
+type zeroClientContextKeyType struct{}
+
+var zeroClientContextKey zeroClientContextKeyType
+
+func zeroClientFromContext(ctx context.Context) *zero.API {
+	return ctx.Value(zeroClientContextKey).(*zero.API)
+}
+
+func BuildRootCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "zero",
+		Short: "Interact with the Pomerium Zero cloud service",
+		PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
+			configFlag := cmd.InheritedFlags().Lookup("config")
+			var configFile string
+			if configFlag != nil {
+				configFile = configFlag.Value.String()
+			}
+
+			if err := setupLogger(); err != nil {
+				return err
+			}
+			var token string
+			if tokenFlag := cmd.InheritedFlags().Lookup("token"); tokenFlag != nil && tokenFlag.Changed {
+				token = tokenFlag.Value.String()
+			} else {
+				token = getToken(configFile)
+			}
+			if token == "" {
+				return errors.New("no token provided")
+			}
+
+			var clusterAPIEndpoint string
+			if endpointFlag := cmd.InheritedFlags().Lookup("cluster-api-endpoint"); endpointFlag != nil && endpointFlag.Changed {
+				clusterAPIEndpoint = endpointFlag.Value.String()
+			} else {
+				clusterAPIEndpoint = getClusterAPIEndpoint()
+			}
+
+			client, err := zero.NewAPI(cmd.Context(),
+				zero.WithAPIToken(token),
+				zero.WithClusterAPIEndpoint(clusterAPIEndpoint),
+				zero.WithConnectAPIEndpoint(getConnectAPIEndpoint()),
+				zero.WithOTELEndpoint(getOTELAPIEndpoint()),
+			)
+			if err != nil {
+				return err
+			}
+			cmd.SetContext(context.WithValue(cmd.Context(), zeroClientContextKey, client))
+			return nil
+		},
+	}
+
+	cmd.AddCommand(BuildImportCmd())
+	cmd.PersistentFlags().String("config", "", "Specify configuration file location")
+	cmd.PersistentFlags().String("token", "", "Pomerium Zero Token (default: $POMERIUM_ZERO_TOKEN)")
+	cmd.PersistentFlags().String("cluster-api-endpoint", "", "Pomerium Zero Cluster API Endpoint (default: $CLUSTER_API_ENDPOINT)")
+	cmd.PersistentFlags().Lookup("cluster-api-endpoint").Hidden = true
+
+	return cmd
+}