open-consul/command/acl/role/read/role_read.go

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package roleread
import (
"flag"
"fmt"
"strings"
"github.com/mitchellh/cli"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/command/acl"
"github.com/hashicorp/consul/command/acl/role"
"github.com/hashicorp/consul/command/flags"
)
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
roleID string
roleName string
showMeta bool
format string
}
func (c *cmd) init() {
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
c.flags.BoolVar(&c.showMeta, "meta", false, "Indicates that role metadata such "+
"as the content hash and raft indices should be shown for each entry")
c.flags.StringVar(&c.roleID, "id", "", "The ID of the role to read. "+
"It may be specified as a unique ID prefix but will error if the prefix "+
"matches multiple policy IDs")
c.flags.StringVar(&c.roleName, "name", "", "The name of the role to read.")
c.flags.StringVar(
&c.format,
"format",
role.PrettyFormat,
fmt.Sprintf("Output format {%s}", strings.Join(role.GetSupportedFormats(), "|")),
)
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 1
}
if c.roleID == "" && c.roleName == "" {
c.UI.Error(fmt.Sprintf("Must specify either the -id or -name parameters"))
return 1
}
client, err := c.http.APIClient()
if err != nil {
c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
return 1
}
var r *api.ACLRole
if c.roleID != "" {
roleID, err := acl.GetRoleIDFromPartial(client, c.roleID)
if err != nil {
c.UI.Error(fmt.Sprintf("Error determining role ID: %v", err))
return 1
}
r, _, err = client.ACL().RoleRead(roleID, nil)
if err != nil {
c.UI.Error(fmt.Sprintf("Error reading role %q: %v", roleID, err))
return 1
} else if r == nil {
c.UI.Error(fmt.Sprintf("Role not found with ID %q", roleID))
return 1
}
} else {
r, _, err = client.ACL().RoleReadByName(c.roleName, nil)
if err != nil {
c.UI.Error(fmt.Sprintf("Error reading role %q: %v", c.roleName, err))
return 1
} else if r == nil {
c.UI.Error(fmt.Sprintf("Role not found with name %q", c.roleName))
return 1
}
}
formatter, err := role.NewFormatter(c.format, c.showMeta)
if err != nil {
c.UI.Error(err.Error())
return 1
}
out, err := formatter.FormatRole(r)
if err != nil {
c.UI.Error(err.Error())
return 1
}
if out != "" {
c.UI.Info(out)
}
return 0
}
func (c *cmd) Synopsis() string {
return synopsis
}
func (c *cmd) Help() string {
return flags.Usage(c.help, nil)
}
const (
synopsis = "Read an ACL role"
help = `
Usage: consul acl role read [options] ROLE
This command will retrieve and print out the details
of a single role.
Read:
$ consul acl role read -id fdabbcb5-9de5-4b1a-961f-77214ae88cba
Read by name:
$ consul acl role read -name my-policy
`
)