zt/ziti/cmd/fabric/create_router.go

/*
	Copyright NetFoundry Inc.

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	https://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License.
*/

package fabric

import (
	"crypto/sha1"
	"fmt"
	"github.com/Jeffail/gabs"
	"github.com/openziti/identity/certtools"
	"github.com/openziti/ziti/ziti/cmd/api"
	"github.com/openziti/ziti/ziti/cmd/common"
	"github.com/spf13/cobra"
)

type createRouterOptions struct {
	api.Options
	name        string
	cost        uint16
	tags        map[string]string
	noTraversal bool
	disabled    bool
}

// newCreateRouterCmd creates the 'fabric create router' command for the given entity type
func newCreateRouterCmd(p common.OptionsProvider) *cobra.Command {
	options := &createRouterOptions{
		Options: api.Options{
			CommonOptions: p(),
		},
		tags: make(map[string]string),
	}

	cmd := &cobra.Command{
		Use:        "router <path-to-cert>",
		Short:      "creates a router managed by the Ziti Controller",
		Args:       cobra.MinimumNArgs(1),
		RunE:       options.createRouter,
		SuggestFor: []string{},
	}

	// allow interspersing positional args and flags
	cmd.Flags().SetInterspersed(true)
	cmd.Flags().StringToStringVarP(&options.tags, "tags", "t", nil, "Add tags to router definition")
	cmd.Flags().StringVar(&options.name, "name", "", "Specifies the router name. If not specified, the id in the controller cert will be used")
	cmd.Flags().Uint16Var(&options.cost, "cost", 0, "Specifies the router cost. Default 0.")
	cmd.Flags().BoolVar(&options.noTraversal, "no-traversal", false, "Disallow traversal for this edge router. Default to allowed(false).")
	cmd.Flags().BoolVar(&options.disabled, "disabled", false, "Disabled routers can't connect to controllers")

	options.AddCommonFlags(cmd)

	return cmd
}

// createRouter implements the command to create a router
func (o *createRouterOptions) createRouter(_ *cobra.Command, args []string) error {
	cert, err := certtools.LoadCertFromFile(args[0])
	if err != nil {
		return err
	}

	entityData := gabs.New()
	id := cert[0].Subject.CommonName
	name := id
	if o.name != "" {
		name = o.name
	}
	fingerprint := fmt.Sprintf("%x", sha1.Sum(cert[0].Raw))
	api.SetJSONValue(entityData, id, "id")
	api.SetJSONValue(entityData, name, "name")
	api.SetJSONValue(entityData, fingerprint, "fingerprint")
	api.SetJSONValue(entityData, o.tags, "tags")
	api.SetJSONValue(entityData, o.cost, "cost")
	api.SetJSONValue(entityData, o.noTraversal, "noTraversal")
	api.SetJSONValue(entityData, o.disabled, "disabled")
	result, err := createEntityOfType("routers", entityData.String(), &o.Options)
	if err != nil {
		return err
	}

	if !o.OutputJSONResponse {
		id := result.S("data", "id").Data()
		_, err = fmt.Fprintf(o.Out, "New %v %v created with id: %v\n", "router", name, id)
		return err
	}
	return nil
}