open-consul/command/acl/role/update/role_update.go

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package roleupdate
import (
"flag"
"fmt"
"strings"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/command/acl"
"github.com/hashicorp/consul/command/acl/role"
"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
roleID string
name string
description string
policyIDs []string
policyNames []string
serviceIdents []string
nodeIdents []string
noMerge bool
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 update. "+
"It may be specified as a unique ID prefix but will error if the prefix "+
"matches multiple role IDs")
c.flags.StringVar(&c.name, "name", "", "The role name.")
c.flags.StringVar(&c.description, "description", "", "A description of the role")
c.flags.Var((*flags.AppendSliceValue)(&c.policyIDs), "policy-id", "ID of a "+
"policy to use for this role. May be specified multiple times")
c.flags.Var((*flags.AppendSliceValue)(&c.policyNames), "policy-name", "Name of a "+
"policy to use for this role. May be specified multiple times")
c.flags.Var((*flags.AppendSliceValue)(&c.serviceIdents), "service-identity", "Name of a "+
"service identity to use for this role. May be specified multiple times. Format is "+
"the SERVICENAME or SERVICENAME:DATACENTER1,DATACENTER2,...")
c.flags.Var((*flags.AppendSliceValue)(&c.nodeIdents), "node-identity", "Name of a "+
"node identity to use for this role. May be specified multiple times. Format is "+
"NODENAME:DATACENTER")
c.flags.BoolVar(&c.noMerge, "no-merge", false, "Do not merge the current role "+
"information with what is provided to the command. Instead overwrite all fields "+
"with the exception of the role ID which is immutable.")
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.UI.Error(fmt.Sprintf("Cannot update a role without specifying the -id parameter"))
return 1
}
client, err := c.http.APIClient()
if err != nil {
c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
return 1
}
roleID, err := acl.GetRoleIDFromPartial(client, c.roleID)
if err != nil {
c.UI.Error(fmt.Sprintf("Error determining role ID: %v", err))
return 1
}
parsedServiceIdents, err := acl.ExtractServiceIdentities(c.serviceIdents)
if err != nil {
c.UI.Error(err.Error())
return 1
}
parsedNodeIdents, err := acl.ExtractNodeIdentities(c.nodeIdents)
if err != nil {
c.UI.Error(err.Error())
return 1
}
// Read the current role in both cases so we can fail better if not found.
currentRole, _, err := client.ACL().RoleRead(roleID, nil)
if err != nil {
c.UI.Error(fmt.Sprintf("Error when retrieving current role: %v", err))
return 1
} else if currentRole == nil {
c.UI.Error(fmt.Sprintf("Role not found with ID %q", roleID))
return 1
}
var r *api.ACLRole
if c.noMerge {
r = &api.ACLRole{
ID: c.roleID,
Name: c.name,
Description: c.description,
ServiceIdentities: parsedServiceIdents,
NodeIdentities: parsedNodeIdents,
}
for _, policyName := range c.policyNames {
// We could resolve names to IDs here but there isn't any reason
// why its would be better than allowing the agent to do it.
r.Policies = append(r.Policies, &api.ACLRolePolicyLink{Name: policyName})
}
for _, policyID := range c.policyIDs {
policyID, err := acl.GetPolicyIDFromPartial(client, policyID)
if err != nil {
c.UI.Error(fmt.Sprintf("Error resolving policy ID %s: %v", policyID, err))
return 1
}
r.Policies = append(r.Policies, &api.ACLRolePolicyLink{ID: policyID})
}
} else {
r = currentRole
if c.name != "" {
r.Name = c.name
}
if c.description != "" {
r.Description = c.description
}
for _, policyName := range c.policyNames {
found := false
for _, link := range r.Policies {
if link.Name == policyName {
found = true
break
}
}
if !found {
// We could resolve names to IDs here but there isn't any
// reason why its would be better than allowing the agent to do
// it.
r.Policies = append(r.Policies, &api.ACLRolePolicyLink{Name: policyName})
}
}
for _, policyID := range c.policyIDs {
policyID, err := acl.GetPolicyIDFromPartial(client, policyID)
if err != nil {
c.UI.Error(fmt.Sprintf("Error resolving policy ID %s: %v", policyID, err))
return 1
}
found := false
for _, link := range r.Policies {
if link.ID == policyID {
found = true
break
}
}
if !found {
r.Policies = append(r.Policies, &api.ACLRolePolicyLink{ID: policyID})
}
}
for _, svcid := range parsedServiceIdents {
found := -1
for i, link := range r.ServiceIdentities {
if link.ServiceName == svcid.ServiceName {
found = i
break
}
}
if found != -1 {
r.ServiceIdentities[found] = svcid
} else {
r.ServiceIdentities = append(r.ServiceIdentities, svcid)
}
}
for _, nodeid := range parsedNodeIdents {
found := false
for _, link := range r.NodeIdentities {
if link.NodeName == nodeid.NodeName && link.Datacenter != nodeid.Datacenter {
found = true
break
}
}
if !found {
r.NodeIdentities = append(r.NodeIdentities, nodeid)
}
}
}
r, _, err = client.ACL().RoleUpdate(r, nil)
if err != nil {
c.UI.Error(fmt.Sprintf("Error updating role %q: %v", roleID, err))
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 = "Update an ACL role"
help = `
Usage: consul acl role update [options]
Updates a role. By default it will merge the role information with its
current state so that you do not have to provide all parameters. This
behavior can be disabled by passing -no-merge.
Rename the role:
$ consul acl role update -id abcd -name "better-name"
Update all editable fields of the role:
$ consul acl role update -id abcd \
-name "better-name" \
-description "replication" \
-policy-name "token-replication" \
-service-identity "web"
`
)