mirror of https://github.com/status-im/consul.git
117 lines
2.4 KiB
Go
117 lines
2.4 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: BUSL-1.1
|
|
|
|
package match
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"io"
|
|
|
|
"github.com/hashicorp/consul/api"
|
|
"github.com/hashicorp/consul/command/flags"
|
|
"github.com/mitchellh/cli"
|
|
)
|
|
|
|
func New(ui cli.Ui) *cmd {
|
|
c := &cmd{UI: ui}
|
|
c.init()
|
|
return c
|
|
}
|
|
|
|
type cmd struct {
|
|
UI cli.Ui
|
|
flags *flag.FlagSet
|
|
http *flags.HTTPFlags
|
|
help string
|
|
|
|
// flags
|
|
flagSource bool
|
|
flagDestination bool
|
|
|
|
// testStdin is the input for testing.
|
|
testStdin io.Reader
|
|
}
|
|
|
|
func (c *cmd) init() {
|
|
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
|
|
c.flags.BoolVar(&c.flagSource, "source", false,
|
|
"Match intentions with the given source.")
|
|
c.flags.BoolVar(&c.flagDestination, "destination", false,
|
|
"Match intentions with the given destination.")
|
|
|
|
c.http = &flags.HTTPFlags{}
|
|
flags.Merge(c.flags, c.http.ClientFlags())
|
|
flags.Merge(c.flags, c.http.ServerFlags())
|
|
flags.Merge(c.flags, c.http.MultiTenancyFlags())
|
|
c.help = flags.Usage(help, c.flags)
|
|
}
|
|
|
|
func (c *cmd) Run(args []string) int {
|
|
if err := c.flags.Parse(args); err != nil {
|
|
return 2
|
|
}
|
|
|
|
args = c.flags.Args()
|
|
if len(args) != 1 {
|
|
c.UI.Error(fmt.Sprintf("Error: command requires exactly one argument: src or dst"))
|
|
return 1
|
|
}
|
|
|
|
if c.flagSource && c.flagDestination {
|
|
c.UI.Error(fmt.Sprintf("Error: only one of -source or -destination may be specified"))
|
|
return 1
|
|
}
|
|
|
|
by := api.IntentionMatchDestination
|
|
if c.flagSource {
|
|
by = api.IntentionMatchSource
|
|
}
|
|
|
|
// Create and test the HTTP client
|
|
client, err := c.http.APIClient()
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// Match the intention
|
|
matches, _, err := client.Connect().IntentionMatch(&api.IntentionMatch{
|
|
By: by,
|
|
Names: []string{args[0]},
|
|
}, nil)
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error matching the connection: %s", err))
|
|
return 1
|
|
}
|
|
|
|
for _, ixn := range matches[args[0]] {
|
|
c.UI.Output(ixn.String())
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
func (c *cmd) Synopsis() string {
|
|
return synopsis
|
|
}
|
|
|
|
func (c *cmd) Help() string {
|
|
return c.help
|
|
}
|
|
|
|
const (
|
|
synopsis = "Show intentions that match a source or destination."
|
|
help = `
|
|
Usage: consul intention match [options] SRC|DST
|
|
|
|
Show the list of intentions that would be enforced for a given source
|
|
or destination. The intentions are listed in the order they would be
|
|
evaluated.
|
|
|
|
$ consul intention match db
|
|
$ consul intention match -source web
|
|
|
|
`
|
|
)
|