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root.go
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root.go
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// Copyright © 2016 Arturo Reuschenbach <a.reuschenbach.puncernau@sap.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"net/url"
"os"
"path"
auth "github.com/sapcc/go-openstack-auth"
"github.com/sapcc/lyra-cli/helpers"
"github.com/sapcc/lyra-cli/locales"
"github.com/sapcc/lyra-cli/restclient"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var (
cfgFile string
RestClient *restclient.Client
)
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "lyra",
Short: locales.CmdShortDescription("root"),
Long: locales.CmdLongDescription("root"),
SilenceUsage: true,
PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
// setup rest client
return setupRestClient(cmd, nil, false)
},
}
// Execute adds all child commands to the root command sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := RootCmd.Execute(); err != nil {
os.Exit(1)
}
}
func init() {
cobra.OnInitialize(initConfig)
initRootCmdFlags()
}
func initRootCmdFlags() {
// set command standard output to the stdout
RootCmd.SetOutput(os.Stderr)
// Cobra flags
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.lyra-cli.yaml)")
RootCmd.Flags().BoolP("toggle", "g", false, "Help message for toggle")
// Custom flags
// Results as JSON format
RootCmd.PersistentFlags().BoolP("json", "j", false, "Print out the data in JSON format.")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag("json", RootCmd.PersistentFlags().Lookup("json")), "BindPFlag:")
// Authentication with token und services flags
RootCmd.PersistentFlags().StringP(FLAG_TOKEN, "t", "", fmt.Sprint("Authentication token. To create a token run the authenticate command. (default ", fmt.Sprintf("[$%s]", ENV_VAR_TOKEN_NAME), ")"))
RootCmd.PersistentFlags().StringP(FLAG_LYRA_SERVICE_ENDPOINT, "l", "", fmt.Sprint("Automation service endpoint. To get the automation endpoint run the authenticate command. (default ", fmt.Sprintf("[$%s]", ENV_VAR_AUTOMATION_ENDPOINT_NAME), ")"))
RootCmd.PersistentFlags().StringP(FLAG_ARC_SERVICE_ENDPOINT, "a", "", fmt.Sprint("Arc service endpoint. To get the arc endpoint run the authenticate command. (default ", fmt.Sprintf("[$%s]", ENV_VAR_ARC_ENDPOINT_NAME), ")"))
// bind to env variables
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_TOKEN_NAME, RootCmd.PersistentFlags().Lookup("token")), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_TOKEN_NAME), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_AUTOMATION_ENDPOINT_NAME, RootCmd.PersistentFlags().Lookup("lyra-service-endpoint")), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_AUTOMATION_ENDPOINT_NAME), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_ARC_ENDPOINT_NAME, RootCmd.PersistentFlags().Lookup("arc-service-endpoint")), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_ARC_ENDPOINT_NAME), "BindEnv:")
// Authentication with application credential flags
RootCmd.PersistentFlags().StringP(FLAG_APPLICATION_CREDENTIAL_ID, "", "", fmt.Sprint("The ID of the application credential used for authentication. If not provided, the application credential must be identified by its name and its owning user. (default ", fmt.Sprintf("[$%s]", ENV_VAR_APPLICATION_CREDENTIAL_ID), ")"))
RootCmd.PersistentFlags().StringP(FLAG_APPLICATION_CREDENTIAL_NAME, "", "", fmt.Sprint("The name of the application credential used for authentication. If provided, must be accompanied by a username. (default ", fmt.Sprintf("[$%s]", ENV_VAR_APPLICATION_CREDENTIAL_NAME), ")"))
RootCmd.PersistentFlags().StringP(FLAG_APPLICATION_CREDENTIAL_SECRET, "", "", fmt.Sprint("The secret for authenticating the application credential. (default ", fmt.Sprintf("[$%s]", ENV_VAR_APPLICATION_CREDENTIAL_SECRET), ")"))
// bind to env variables
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_APPLICATION_CREDENTIAL_ID, RootCmd.PersistentFlags().Lookup(FLAG_APPLICATION_CREDENTIAL_ID)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_APPLICATION_CREDENTIAL_ID), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_APPLICATION_CREDENTIAL_NAME, RootCmd.PersistentFlags().Lookup(FLAG_APPLICATION_CREDENTIAL_NAME)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_APPLICATION_CREDENTIAL_NAME), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_APPLICATION_CREDENTIAL_SECRET, RootCmd.PersistentFlags().Lookup(FLAG_APPLICATION_CREDENTIAL_SECRET)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_APPLICATION_CREDENTIAL_SECRET), "BindEnv:")
// Authentication user flags
RootCmd.PersistentFlags().StringP(FLAG_AUTH_URL, "", "", fmt.Sprint("Endpoint entities represent URL endpoints for OpenStack web services. (default ", fmt.Sprintf("[$%s]", ENV_VAR_AUTH_URL), ")"))
RootCmd.PersistentFlags().StringP(FLAG_REGION, "", "", fmt.Sprint("A region is a general division of an OpenStack deployment. (default ", fmt.Sprintf("[$%s]", ENV_VAR_REGION), " or the first entry found in catalog)"))
RootCmd.PersistentFlags().StringP(FLAG_USER_ID, "", "", fmt.Sprint("Id of the user that wants to log in. (default ", fmt.Sprintf("[$%s]", ENV_VAR_USER_ID), ")"))
RootCmd.PersistentFlags().StringP(FLAG_USERNAME, "", "", fmt.Sprint("Name of the user that wants to log in. (default ", fmt.Sprintf("[$%s]", ENV_VAR_USERNAME), ")"))
RootCmd.PersistentFlags().StringP(FLAG_PASSWORD, "", "", fmt.Sprint("Password of the user that wants to log in. If not given the environment variable ", fmt.Sprintf("[$%s]", ENV_VAR_PASSWORD), " will be checked. If no environment variable found then will prompt from terminal."))
RootCmd.PersistentFlags().StringP(FLAG_PROJECT_ID, "", "", fmt.Sprint("Id of the project. (default ", fmt.Sprintf("[$%s]", ENV_VAR_PROJECT_ID), ")"))
RootCmd.PersistentFlags().StringP(FLAG_PROJECT_NAME, "", "", fmt.Sprint("Name of the project. (default ", fmt.Sprintf("[$%s]", ENV_VAR_PROJECT_NAME), ")"))
RootCmd.PersistentFlags().StringP(FLAG_USER_DOMAIN_ID, "", "", fmt.Sprint("Id of the domain where the user is created. (default ", fmt.Sprintf("[$%s]", ENV_VAR_USER_DOMAIN_ID), ")"))
RootCmd.PersistentFlags().StringP(FLAG_USER_DOMAIN_NAME, "", "", fmt.Sprint("Name of the domain where the user is created. (default ", fmt.Sprintf("[$%s]", ENV_VAR_USER_DOMAIN_NAME), ")"))
RootCmd.PersistentFlags().StringP(FLAG_PROJECT_DOMAIN_ID, "", "", fmt.Sprint("Id of the domain where the project is created. If no project domain id is given, then the token will be scoped in the user domain. (default ", fmt.Sprintf("[$%s]", ENV_VAR_PROJECT_DOMAIN_ID), ")"))
RootCmd.PersistentFlags().StringP(FLAG_PROEJECT_DOMAIN_NAME, "", "", fmt.Sprint("Name of the domain where the project is created. If no project domain name is given, then the token will be scoped in the user domain. (default ", fmt.Sprintf("[$%s]", ENV_VAR_PROJECT_DOMAIN_NAME), ")"))
// bind to env variablen
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_AUTH_URL, RootCmd.PersistentFlags().Lookup(FLAG_AUTH_URL)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_AUTH_URL), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_REGION, RootCmd.PersistentFlags().Lookup(FLAG_REGION)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_REGION), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_USER_ID, RootCmd.PersistentFlags().Lookup(FLAG_USER_ID)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_USER_ID), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_USERNAME, RootCmd.PersistentFlags().Lookup(FLAG_USERNAME)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_USERNAME), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_PASSWORD, RootCmd.PersistentFlags().Lookup(FLAG_PASSWORD)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_PASSWORD), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_PROJECT_ID, RootCmd.PersistentFlags().Lookup(FLAG_PROJECT_ID)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_PROJECT_ID), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_PROJECT_NAME, RootCmd.PersistentFlags().Lookup(FLAG_PROJECT_NAME)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_PROJECT_NAME), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_USER_DOMAIN_ID, RootCmd.PersistentFlags().Lookup(FLAG_USER_DOMAIN_ID)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_USER_DOMAIN_ID), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_USER_DOMAIN_NAME, RootCmd.PersistentFlags().Lookup(FLAG_USER_DOMAIN_NAME)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_USER_DOMAIN_NAME), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_PROJECT_DOMAIN_ID, RootCmd.PersistentFlags().Lookup(FLAG_PROJECT_DOMAIN_ID)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_PROJECT_DOMAIN_ID), "BindEnv:")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(ENV_VAR_PROJECT_DOMAIN_NAME, RootCmd.PersistentFlags().Lookup(FLAG_PROEJECT_DOMAIN_NAME)), "BindPFlag:")
helpers.CheckErrAndPrintToStdErr(viper.BindEnv(ENV_VAR_PROJECT_DOMAIN_NAME), "BindEnv:")
// debug flag
RootCmd.PersistentFlags().BoolP(FLAG_DEBUG, "", false, "Print out request and response objects.")
helpers.CheckErrAndPrintToStdErr(viper.BindPFlag(FLAG_DEBUG, RootCmd.PersistentFlags().Lookup(FLAG_DEBUG)), "BindPFlag:")
}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
if cfgFile != "" { // enable ability to specify config file via flag
viper.SetConfigFile(cfgFile)
}
viper.SetConfigName(".lyra-cli") // name of config file (without extension)
viper.AddConfigPath("$HOME") // adding home directory as first search path
// viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
fmt.Fprintln(os.Stderr, "Using config file: ", viper.ConfigFileUsed())
}
}
// setup the rest client
func setupRestClient(cmd *cobra.Command, authV3 *auth.Authentication, forceReauthenticate bool) error {
if len(viper.GetString(ENV_VAR_TOKEN_NAME)) == 0 || len(viper.GetString(ENV_VAR_AUTOMATION_ENDPOINT_NAME)) == 0 || len(viper.GetString(ENV_VAR_ARC_ENDPOINT_NAME)) == 0 || forceReauthenticate {
// authentication object
if authV3 == nil {
lyraAuthOps := auth.AuthOptions{
IdentityEndpoint: viper.GetString(ENV_VAR_AUTH_URL),
Username: viper.GetString(ENV_VAR_USERNAME),
UserId: viper.GetString(ENV_VAR_USER_ID),
Password: viper.GetString(ENV_VAR_PASSWORD),
ProjectName: viper.GetString(ENV_VAR_PROJECT_NAME),
ProjectId: viper.GetString(ENV_VAR_PROJECT_ID),
UserDomainName: viper.GetString(ENV_VAR_USER_DOMAIN_NAME),
UserDomainId: viper.GetString(ENV_VAR_USER_DOMAIN_ID),
ProjectDomainName: viper.GetString(ENV_VAR_PROJECT_DOMAIN_NAME),
ProjectDomainId: viper.GetString(ENV_VAR_PROJECT_DOMAIN_ID),
ApplicationCredentialID: viper.GetString(ENV_VAR_APPLICATION_CREDENTIAL_ID),
ApplicationCredentialName: viper.GetString(ENV_VAR_APPLICATION_CREDENTIAL_NAME),
ApplicationCredentialSecret: viper.GetString(ENV_VAR_APPLICATION_CREDENTIAL_SECRET),
}
newAuthV3 := auth.AuthenticationV3(lyraAuthOps)
authV3 = &newAuthV3
}
if len((*authV3).GetOptions().ApplicationCredentialID) == 0 && len((*authV3).GetOptions().ApplicationCredentialName) == 0 {
fmt.Fprintln(os.Stderr, "Using password authentication.")
} else {
fmt.Fprintln(os.Stderr, "Using application credential authentication.")
}
// authenticate
authParams, err := authenticate(cmd, *authV3)
if err != nil {
return err
}
// reset the vars to viper
viper.Set(ENV_VAR_AUTOMATION_ENDPOINT_NAME, authParams[ENV_VAR_AUTOMATION_ENDPOINT_NAME])
viper.Set(ENV_VAR_ARC_ENDPOINT_NAME, authParams[ENV_VAR_ARC_ENDPOINT_NAME])
viper.Set(ENV_VAR_TOKEN_NAME, authParams[ENV_VAR_TOKEN_NAME])
viper.Set(TOKEN_EXPIRES_AT, authParams[TOKEN_EXPIRES_AT])
} else {
fmt.Fprintln(os.Stderr, "Using token authentication.")
}
// add api version to the automation url
autoUri, err := url.Parse(viper.GetString(ENV_VAR_AUTOMATION_ENDPOINT_NAME))
if err != nil {
return err
}
autoUri.Path = path.Join(autoUri.Path, "/api/v1/")
// add api version to the arc url
arcUri, err := url.Parse(viper.GetString(ENV_VAR_ARC_ENDPOINT_NAME))
if err != nil {
return err
}
arcUri.Path = path.Join(arcUri.Path, "/api/v1/")
endpoints := []restclient.Endpoint{
restclient.Endpoint{ID: "automation", Url: autoUri.String()},
restclient.Endpoint{ID: "arc", Url: arcUri.String()},
}
// init rest client
RestClient = restclient.NewClient(endpoints, viper.GetString(ENV_VAR_TOKEN_NAME), viper.GetBool(FLAG_DEBUG))
return nil
}