mirror of https://github.com/hashicorp/consul
143 lines
3.1 KiB
Go
143 lines
3.1 KiB
Go
package policyread
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import (
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"flag"
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"fmt"
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"strings"
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"github.com/mitchellh/cli"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/consul/command/acl"
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"github.com/hashicorp/consul/command/acl/policy"
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"github.com/hashicorp/consul/command/flags"
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)
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func New(ui cli.Ui) *cmd {
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c := &cmd{UI: ui}
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c.init()
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return c
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}
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type cmd struct {
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UI cli.Ui
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flags *flag.FlagSet
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http *flags.HTTPFlags
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help string
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policyID string
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policyName string
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showMeta bool
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format string
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}
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func (c *cmd) init() {
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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c.flags.BoolVar(&c.showMeta, "meta", false, "Indicates that policy metadata such "+
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"as the content hash and raft indices should be shown for each entry")
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c.flags.StringVar(&c.policyID, "id", "", "The ID of the policy to read. "+
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"It may be specified as a unique ID prefix but will error if the prefix "+
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"matches multiple policy IDs")
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c.flags.StringVar(&c.policyName, "name", "", "The name of the policy to read.")
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c.flags.StringVar(
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&c.format,
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"format",
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policy.PrettyFormat,
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fmt.Sprintf("Output format {%s}", strings.Join(policy.GetSupportedFormats(), "|")),
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)
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c.http = &flags.HTTPFlags{}
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flags.Merge(c.flags, c.http.ClientFlags())
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flags.Merge(c.flags, c.http.ServerFlags())
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flags.Merge(c.flags, c.http.MultiTenancyFlags())
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c.help = flags.Usage(help, c.flags)
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}
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func (c *cmd) Run(args []string) int {
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if err := c.flags.Parse(args); err != nil {
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return 1
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}
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if c.policyID == "" && c.policyName == "" {
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c.UI.Error(fmt.Sprintf("Must specify either the -id or -name parameters"))
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return 1
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}
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client, err := c.http.APIClient()
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
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return 1
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}
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var policyID string
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var pol *api.ACLPolicy
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if c.policyID != "" {
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policyID, err = acl.GetPolicyIDFromPartial(client, c.policyID)
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error determining policy ID: %v", err))
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return 1
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}
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pol, _, err = client.ACL().PolicyRead(policyID, nil)
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} else {
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pol, err = acl.GetPolicyByName(client, c.policyName)
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}
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if err != nil {
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var errArg string
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if c.policyID != "" {
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errArg = fmt.Sprintf("id:%s", policyID)
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} else {
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errArg = fmt.Sprintf("name:%s", c.policyName)
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}
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c.UI.Error(fmt.Sprintf("Error reading policy %q: %v", errArg, err))
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return 1
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}
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if pol == nil {
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c.UI.Error(fmt.Sprintf("Error policy not found: %s", c.policyName))
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return 1
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}
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formatter, err := policy.NewFormatter(c.format, c.showMeta)
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if err != nil {
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c.UI.Error(err.Error())
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return 1
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}
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out, err := formatter.FormatPolicy(pol)
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if err != nil {
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c.UI.Error(err.Error())
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return 1
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}
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if out != "" {
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c.UI.Info(out)
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}
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return 0
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}
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func (c *cmd) Synopsis() string {
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return synopsis
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}
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func (c *cmd) Help() string {
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return flags.Usage(c.help, nil)
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}
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const (
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synopsis = "Read an ACL policy"
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help = `
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Usage: consul acl policy read [options] POLICY
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This command will retrieve and print out the details
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of a single policy.
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Read:
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$ consul acl policy read -id fdabbcb5-9de5-4b1a-961f-77214ae88cba
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Read by name:
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$ consul acl policy read -name my-policy
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`
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)
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