package authmethodcreate import ( "encoding/json" "flag" "fmt" "io" "strings" "time" "github.com/hashicorp/consul/api" "github.com/hashicorp/consul/command/acl/authmethod" "github.com/hashicorp/consul/command/flags" "github.com/hashicorp/consul/command/helpers" "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 authMethodType string name string displayName string description string maxTokenTTL time.Duration config string k8sHost string k8sCACert string k8sServiceAccountJWT string showMeta bool format string testStdin io.Reader enterpriseCmd } func (c *cmd) init() { c.flags = flag.NewFlagSet("", flag.ContinueOnError) c.flags.BoolVar( &c.showMeta, "meta", false, "Indicates that auth method metadata such "+ "as the raft indices should be shown for each entry.", ) c.flags.StringVar( &c.authMethodType, "type", "", "The new auth method's type. This flag is required.", ) c.flags.StringVar( &c.name, "name", "", "The new auth method's name. This flag is required.", ) c.flags.StringVar( &c.displayName, "display-name", "", "An optional name to use instead of the name when displaying this auth method in a UI.", ) c.flags.StringVar( &c.description, "description", "", "A description of the auth method.", ) c.flags.DurationVar( &c.maxTokenTTL, "max-token-ttl", 0, "Duration of time all tokens created by this auth method should be valid for", ) c.flags.StringVar( &c.k8sHost, "kubernetes-host", "", "Address of the Kubernetes API server. This flag is required for type=kubernetes.", ) c.flags.StringVar( &c.k8sCACert, "kubernetes-ca-cert", "", "PEM encoded CA cert for use by the TLS client used to talk with the "+ "Kubernetes API. May be prefixed with '@' to indicate that the "+ "value is a file path to load the cert from. "+ "This flag is required for type=kubernetes.", ) c.flags.StringVar( &c.k8sServiceAccountJWT, "kubernetes-service-account-jwt", "", "A Kubernetes service account JWT used to access the TokenReview API to "+ "validate other JWTs during login. "+ "This flag is required for type=kubernetes.", ) c.flags.StringVar( &c.format, "format", authmethod.PrettyFormat, fmt.Sprintf("Output format {%s}", strings.Join(authmethod.GetSupportedFormats(), "|")), ) c.flags.StringVar( &c.config, "config", "", "The configuration for the auth method. Must be JSON. May be prefixed with '@' "+ "to indicate that the value is a file path to load the config from. '-' may also be "+ "given to indicate that the config is available on stdin", ) c.initEnterpriseFlags() c.http = &flags.HTTPFlags{} flags.Merge(c.flags, c.http.ClientFlags()) flags.Merge(c.flags, c.http.ServerFlags()) flags.Merge(c.flags, c.http.NamespaceFlags()) 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.authMethodType == "" { c.UI.Error(fmt.Sprintf("Missing required '-type' flag")) c.UI.Error(c.Help()) return 1 } else if c.name == "" { c.UI.Error(fmt.Sprintf("Missing required '-name' flag")) c.UI.Error(c.Help()) return 1 } client, err := c.http.APIClient() if err != nil { c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err)) return 1 } newAuthMethod := &api.ACLAuthMethod{ Type: c.authMethodType, Name: c.name, DisplayName: c.displayName, Description: c.description, } if c.maxTokenTTL > 0 { newAuthMethod.MaxTokenTTL = c.maxTokenTTL } if err := c.enterprisePopulateAuthMethod(newAuthMethod); err != nil { c.UI.Error(err.Error()) return 1 } if c.config != "" { if c.k8sHost != "" || c.k8sCACert != "" || c.k8sServiceAccountJWT != "" { c.UI.Error(fmt.Sprintf("Cannot use command line arguments with '-config' flags")) return 1 } data, err := helpers.LoadDataSource(c.config, c.testStdin) if err != nil { c.UI.Error(fmt.Sprintf("Error loading configuration file: %v", err)) return 1 } err = json.Unmarshal([]byte(data), &newAuthMethod.Config) if err != nil { c.UI.Error(fmt.Sprintf("Error parsing JSON configuration file: %v", err)) return 1 } } if c.authMethodType == "kubernetes" { if c.k8sHost == "" { c.UI.Error(fmt.Sprintf("Missing required '-kubernetes-host' flag")) return 1 } else if c.k8sCACert == "" { c.UI.Error(fmt.Sprintf("Missing required '-kubernetes-ca-cert' flag")) return 1 } else if c.k8sServiceAccountJWT == "" { c.UI.Error(fmt.Sprintf("Missing required '-kubernetes-service-account-jwt' flag")) return 1 } c.k8sCACert, err = helpers.LoadDataSource(c.k8sCACert, c.testStdin) if err != nil { c.UI.Error(fmt.Sprintf("Invalid '-kubernetes-ca-cert' value: %v", err)) return 1 } else if c.k8sCACert == "" { c.UI.Error(fmt.Sprintf("Kubernetes CA Cert is empty")) return 1 } newAuthMethod.Config = map[string]interface{}{ "Host": c.k8sHost, "CACert": c.k8sCACert, "ServiceAccountJWT": c.k8sServiceAccountJWT, } } method, _, err := client.ACL().AuthMethodCreate(newAuthMethod, nil) if err != nil { c.UI.Error(fmt.Sprintf("Failed to create new auth method: %v", err)) return 1 } formatter, err := authmethod.NewFormatter(c.format, c.showMeta) if err != nil { c.UI.Error(err.Error()) return 1 } out, err := formatter.FormatAuthMethod(method) 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 = "Create an ACL auth method" const help = ` Usage: consul acl auth-method create -name NAME -type TYPE [options] Create a new auth method: $ consul acl auth-method create -type "kubernetes" \ -name "my-k8s" \ -description "This is an example kube method" \ -kubernetes-host "https://apiserver.example.com:8443" \ -kubernetes-ca-file /path/to/kube.ca.crt \ -kubernetes-service-account-jwt "JWT_CONTENTS" `