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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// Helpers used by multiple sub-commands.
// Author: mpolden
package cmd
import (
"crypto/tls"
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"strings"
"time"
"github.com/vespa-engine/vespa/client/go/vespa"
)
var exitFunc = os.Exit // To allow overriding Exit in tests
func fatalErrHint(err error, hints ...string) {
printErrHint(err, hints...)
exitFunc(1)
}
func fatalErr(err error, msg ...interface{}) {
printErr(err, msg...)
exitFunc(1)
}
func printErrHint(err error, hints ...string) {
if err != nil {
printErr(nil, err.Error())
}
for _, hint := range hints {
fmt.Fprintln(stderr, color.Cyan("Hint:"), hint)
}
}
func printErr(err error, msg ...interface{}) {
if len(msg) > 0 {
fmt.Fprintln(stderr, color.Red("Error:"), fmt.Sprint(msg...))
}
if err != nil {
fmt.Fprintln(stderr, color.Yellow(err))
}
}
func printSuccess(msg ...interface{}) {
log.Print(color.Green("Success: "), fmt.Sprint(msg...))
}
func vespaCliHome() (string, error) {
home := os.Getenv("VESPA_CLI_HOME")
if home == "" {
userHome, err := os.UserHomeDir()
if err != nil {
return "", err
}
home = filepath.Join(userHome, ".vespa")
}
if err := os.MkdirAll(home, 0700); err != nil {
return "", err
}
return home, nil
}
func vespaCliCacheDir() (string, error) {
cacheDir := os.Getenv("VESPA_CLI_CACHE_DIR")
if cacheDir == "" {
userCacheDir, err := os.UserCacheDir()
if err != nil {
return "", err
}
cacheDir = filepath.Join(userCacheDir, "vespa")
}
if err := os.MkdirAll(cacheDir, 0755); err != nil {
return "", err
}
return cacheDir, nil
}
func deploymentFromArgs() vespa.Deployment {
zone, err := vespa.ZoneFromString(zoneArg)
if err != nil {
fatalErrHint(err, "Zone format is <env>.<region>")
}
app := getApplication()
return vespa.Deployment{Application: app, Zone: zone}
}
func applicationSource(args []string) string {
if len(args) > 0 {
return args[0]
}
return "."
}
func getApplication() vespa.ApplicationID {
cfg, err := LoadConfig()
if err != nil {
fatalErr(err, "Could not load config")
return vespa.ApplicationID{}
}
app, err := cfg.Get(applicationFlag)
if err != nil {
fatalErrHint(err, "No application specified. Try the --"+applicationFlag+" flag")
return vespa.ApplicationID{}
}
application, err := vespa.ApplicationFromString(app)
if err != nil {
fatalErrHint(err, "Application format is <tenant>.<app>.<instance>")
return vespa.ApplicationID{}
}
return application
}
func getTargetType() string {
cfg, err := LoadConfig()
if err != nil {
fatalErr(err, "Could not load config")
return ""
}
target, err := cfg.Get(targetFlag)
if err != nil {
fatalErr(err, "A valid target must be specified")
}
return target
}
func getService(service string, sessionOrRunID int64) *vespa.Service {
t := getTarget()
timeout := time.Duration(waitSecsArg) * time.Second
if timeout > 0 {
log.Printf("Waiting up to %d %s for service to become available ...", color.Cyan(waitSecsArg), color.Cyan("seconds"))
}
s, err := t.Service(service, timeout, sessionOrRunID)
if err != nil {
fatalErr(err, "Invalid service: ", service)
}
return s
}
func getSystem() string { return os.Getenv("VESPA_CLI_CLOUD_SYSTEM") }
func getConsoleURL() string {
if getSystem() == "publiccd" {
return "https://console-cd.vespa.oath.cloud"
}
return "https://console.vespa.oath.cloud"
}
func getApiURL() string {
if getSystem() == "publiccd" {
return "https://api.vespa-external-cd.aws.oath.cloud:4443"
}
return "https://api.vespa-external.aws.oath.cloud:4443"
}
func getTarget() vespa.Target {
targetType := getTargetType()
if strings.HasPrefix(targetType, "http") {
return vespa.CustomTarget(targetType)
}
switch targetType {
case "local":
return vespa.LocalTarget()
case "cloud":
deployment := deploymentFromArgs()
cfg, err := LoadConfig()
if err != nil {
fatalErr(err, "Could not load config")
return nil
}
apiKey, err := ioutil.ReadFile(cfg.APIKeyPath(deployment.Application.Tenant))
if err != nil {
fatalErrHint(err, "Deployment to cloud requires an API key. Try 'vespa api-key'")
}
privateKeyFile, err := cfg.PrivateKeyPath(deployment.Application)
if err != nil {
fatalErr(err)
return nil
}
certificateFile, err := cfg.CertificatePath(deployment.Application)
if err != nil {
fatalErr(err)
return nil
}
kp, err := tls.LoadX509KeyPair(certificateFile, privateKeyFile)
if err != nil {
fatalErrHint(err, "Deployment to cloud requires a certificate. Try 'vespa cert'")
}
return vespa.CloudTarget(getApiURL(), deployment, apiKey,
vespa.TLSOptions{
KeyPair: kp,
CertificateFile: certificateFile,
PrivateKeyFile: privateKeyFile,
},
vespa.LogOptions{
Writer: stdout,
Level: vespa.LogLevel(logLevelArg),
})
}
fatalErrHint(fmt.Errorf("Invalid target: %s", targetType), "Valid targets are 'local', 'cloud' or an URL")
return nil
}
func waitForService(service string, sessionOrRunID int64) {
s := getService(service, sessionOrRunID)
timeout := time.Duration(waitSecsArg) * time.Second
if timeout > 0 {
log.Printf("Waiting up to %d %s for service to become ready ...", color.Cyan(waitSecsArg), color.Cyan("seconds"))
}
status, err := s.Wait(timeout)
if status/100 == 2 {
log.Print(s.Description(), " at ", color.Cyan(s.BaseURL), " is ", color.Green("ready"))
} else {
if err == nil {
err = fmt.Errorf("Status %d", status)
}
fatalErr(err, s.Description(), " at ", color.Cyan(s.BaseURL), " is ", color.Red("not ready"))
}
}
func getDeploymentOpts(cfg *Config, pkg vespa.ApplicationPackage, target vespa.Target) vespa.DeploymentOpts {
opts := vespa.DeploymentOpts{ApplicationPackage: pkg, Target: target}
if opts.IsCloud() {
deployment := deploymentFromArgs()
if !opts.ApplicationPackage.HasCertificate() {
fatalErrHint(fmt.Errorf("Missing certificate in application package"), "Applications in Vespa Cloud require a certificate", "Try 'vespa cert'")
return opts
}
var err error
opts.APIKey, err = cfg.ReadAPIKey(deployment.Application.Tenant)
if err != nil {
fatalErrHint(err, "Deployment to cloud requires an API key. Try 'vespa api-key'")
return opts
}
opts.Deployment = deployment
}
return opts
}
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