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// Copyright Verizon Media. 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"
"log"
"os"
"path/filepath"
"strings"
"time"
"github.com/vespa-engine/vespa/vespa"
)
var exitFunc = os.Exit // To allow overriding Exit in tests
func printErrHint(err error, hints ...string) {
printErr(nil, err.Error())
for _, hint := range hints {
log.Print(color.Cyan("Hint: "), hint)
}
exitFunc(1)
}
func printErr(err error, msg ...interface{}) {
if len(msg) > 0 {
log.Print(color.Red("Error: "), fmt.Sprint(msg...))
}
if err != nil {
log.Print(color.Yellow(err))
}
exitFunc(1)
}
func printSuccess(msg ...interface{}) {
log.Print(color.Green("Success: "), fmt.Sprint(msg...))
}
func readAPIKey(tenant string) []byte {
configDir := configDir("")
apiKeyPath := filepath.Join(configDir, tenant+".api-key.pem")
key, err := os.ReadFile(apiKeyPath)
if err != nil {
printErrHint(err, "Deployment to cloud requires an API key. Try 'vespa api-key'")
}
return key
}
func deploymentFromArgs() vespa.Deployment {
zone, err := vespa.ZoneFromString(zoneArg)
if err != nil {
printErrHint(err, "Zone format is <env>.<region>")
}
app, err := vespa.ApplicationFromString(getApplication())
if err != nil {
printErrHint(err, "Application format is <tenant>.<app>.<instance>")
}
return vespa.Deployment{Application: app, Zone: zone}
}
func applicationSource(args []string) string {
if len(args) > 0 {
return args[0]
}
return "."
}
func getApplication() string {
app, err := getOption(applicationFlag)
if err != nil {
printErr(err, "A valid application must be specified")
}
return app
}
func getTargetType() string {
target, err := getOption(targetFlag)
if err != nil {
printErr(err, "A valid target must be specified")
}
return target
}
func getService(service string) *vespa.Service {
t := getTarget()
timeout := time.Duration(waitSecsArg) * time.Second
if timeout > 0 {
log.Printf("Waiting up to %d %s for service discovery to complete ...", color.Cyan(waitSecsArg), color.Cyan("seconds"))
}
if err := t.DiscoverServices(timeout); err != nil {
printErr(err, "Failed to discover services")
}
s, err := t.Service(service)
if err != nil {
printErr(err, "Invalid service")
}
return s
}
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()
apiKey := readAPIKey(deployment.Application.Tenant)
configDir := configDir(deployment.Application.String())
privateKeyFile := filepath.Join(configDir, "data-plane-private-key.pem")
certificateFile := filepath.Join(configDir, "data-plane-public-cert.pem")
kp, err := tls.LoadX509KeyPair(certificateFile, privateKeyFile)
if err != nil {
printErr(err, "Could not read key pair")
}
return vespa.CloudTarget(deployment, kp, apiKey)
}
printErrHint(fmt.Errorf("Invalid target: %s", targetType), "Valid targets are 'local', 'cloud' or an URL")
return nil
}
func waitForService(service string) {
s := getService(service)
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 {
log.Print(s.Description(), " at ", color.Cyan(s.BaseURL), " is ", color.Red("not ready"))
if err == nil {
log.Print(color.Yellow(fmt.Sprintf("Status %d", status)))
} else {
log.Print(color.Yellow(err))
}
}
}
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