/usr/share/gocode/src/github.com/hashicorp/serf/command/tags.go is in golang-github-hashicorp-serf-dev 0.7.0~ds1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import (
"flag"
"fmt"
"github.com/hashicorp/serf/command/agent"
"github.com/mitchellh/cli"
"strings"
)
// TagsCommand is an interface to dynamically add or otherwise modify a
// running serf agent's tags.
type TagsCommand struct {
Ui cli.Ui
}
func (c *TagsCommand) Help() string {
helpText := `
Usage: serf tags [options] ...
Modifies tags on a running Serf agent.
Options:
-rpc-addr=127.0.0.1:7373 RPC Address of the Serf agent.
-rpc-auth="" RPC auth token of the Serf agent.
-set key=value Creates or modifies the value of a tag
-delete key Removes a tag, if present
`
return strings.TrimSpace(helpText)
}
func (c *TagsCommand) Run(args []string) int {
var tagPairs []string
var delTags []string
cmdFlags := flag.NewFlagSet("tags", flag.ContinueOnError)
cmdFlags.Usage = func() { c.Ui.Output(c.Help()) }
cmdFlags.Var((*agent.AppendSliceValue)(&tagPairs), "set",
"tag pairs, specified as key=value")
cmdFlags.Var((*agent.AppendSliceValue)(&delTags), "delete",
"tag keys to unset")
rpcAddr := RPCAddrFlag(cmdFlags)
rpcAuth := RPCAuthFlag(cmdFlags)
if err := cmdFlags.Parse(args); err != nil {
return 1
}
if len(tagPairs) == 0 && len(delTags) == 0 {
c.Ui.Output(c.Help())
return 1
}
client, err := RPCClient(*rpcAddr, *rpcAuth)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error connecting to Serf agent: %s", err))
return 1
}
defer client.Close()
tags, err := agent.UnmarshalTags(tagPairs)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error: %s", err))
return 1
}
if err := client.UpdateTags(tags, delTags); err != nil {
c.Ui.Error(fmt.Sprintf("Error setting tags: %s", err))
return 1
}
c.Ui.Output("Successfully updated agent tags")
return 0
}
func (c *TagsCommand) Synopsis() string {
return "Modify tags of a running Serf agent"
}
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