consul/command/resource/apply/apply.go

148 lines
3.2 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package apply
import (
"encoding/json"
"errors"
"flag"
"fmt"
"io"
"github.com/mitchellh/cli"
"github.com/hashicorp/consul/command/resource/client"
)
func New(ui cli.Ui) *cmd {
c := &cmd{UI: ui}
c.init()
return c
}
type cmd struct {
UI cli.Ui
flags *flag.FlagSet
grpcFlags *client.GRPCFlags
help string
filePath string
testStdin io.Reader
}
func (c *cmd) init() {
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
c.flags.StringVar(&c.filePath, "f", "",
"File path with resource definition")
c.grpcFlags = &client.GRPCFlags{}
client.MergeFlags(c.flags, c.grpcFlags.ClientFlags())
c.help = client.Usage(help, c.flags)
}
func (c *cmd) Run(args []string) int {
if err := c.flags.Parse(args); err != nil {
if !errors.Is(err, flag.ErrHelp) {
c.UI.Error(fmt.Sprintf("Failed to parse args: %v", err))
return 1
}
c.UI.Error(fmt.Sprintf("Failed to run apply command: %v", err))
return 1
}
// parse resource
input := c.filePath
if input == "" {
c.UI.Error("Required '-f' flag was not provided to specify where to load the resource content from")
return 1
}
parsedResource, err := client.ParseResourceInput(input, c.testStdin)
if err != nil {
c.UI.Error(fmt.Sprintf("Failed to decode resource from input file: %v", err))
return 1
}
if parsedResource == nil {
c.UI.Error("Unable to parse the file argument")
return 1
}
// initialize client
config, err := client.LoadGRPCConfig(nil)
if err != nil {
c.UI.Error(fmt.Sprintf("Error loading config: %s", err))
return 1
}
c.grpcFlags.MergeFlagsIntoGRPCConfig(config)
resourceClient, err := client.NewGRPCClient(config)
if err != nil {
c.UI.Error(fmt.Sprintf("Error connect to Consul agent: %s", err))
return 1
}
// write resource
entry, err := resourceClient.Apply(parsedResource)
if err != nil {
c.UI.Error(fmt.Sprintf("Error writing resource %s/%s: %v", parsedResource.Id.Type, parsedResource.Id.GetName(), err))
return 1
}
// display response
b, err := json.MarshalIndent(entry, "", client.JSON_INDENT)
if err != nil {
c.UI.Error("Failed to encode output data")
return 1
}
c.UI.Info(fmt.Sprintf("%s.%s.%s '%s' created.", parsedResource.Id.Type.Group, parsedResource.Id.Type.GroupVersion, parsedResource.Id.Type.Kind, parsedResource.Id.GetName()))
c.UI.Info(string(b))
return 0
}
func (c *cmd) Synopsis() string {
return synopsis
}
func (c *cmd) Help() string {
return client.Usage(c.help, nil)
}
const synopsis = "Writes/updates resource information"
const help = `
Usage: consul resource apply [options] <resource>
Write and/or update a resource by providing the definition. The configuration
argument is either a file path or '-' to indicate that the resource
should be read from stdin. The data should be either in HCL or
JSON form.
Example (with flag):
$ consul resource apply -f=demo.hcl
Example (from stdin):
$ consul resource apply -f - < demo.hcl
Sample demo.hcl:
ID {
Type = gvk("group.version.kind")
Name = "resource-name"
Tenancy {
Namespace = "default"
Partition = "default"
}
}
Data {
Name = "demo"
}
Metadata = {
"foo" = "bar"
}
`