319 lines
9.4 KiB
Go
319 lines
9.4 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors All rights reserved.
|
|
|
|
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 util
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"regexp"
|
|
"strings"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/docker/machine/libmachine/state"
|
|
"github.com/pkg/errors"
|
|
"k8s.io/minikube/pkg/minikube/assets"
|
|
commonutil "k8s.io/minikube/pkg/util"
|
|
)
|
|
|
|
// MinikubeRunner runs a command
|
|
type MinikubeRunner struct {
|
|
Profile string
|
|
T *testing.T
|
|
BinaryPath string
|
|
GlobalArgs string
|
|
StartArgs string
|
|
MountArgs string
|
|
Runtime string
|
|
TimeOutStart time.Duration // time to wait for minikube start before killing it
|
|
}
|
|
|
|
// Remove removes a file
|
|
func (m *MinikubeRunner) Remove(f assets.CopyableFile) error {
|
|
_, err := m.SSH(fmt.Sprintf("rm -rf %s", filepath.Join(f.GetTargetDir(), f.GetTargetName())))
|
|
return err
|
|
}
|
|
|
|
// teeRun runs a command, streaming stdout, stderr to console
|
|
func (m *MinikubeRunner) teeRun(cmd *exec.Cmd, waitForRun ...bool) (string, string, error) {
|
|
w := true
|
|
if waitForRun != nil {
|
|
w = waitForRun[0]
|
|
}
|
|
|
|
errPipe, err := cmd.StderrPipe()
|
|
if err != nil {
|
|
return "", "", err
|
|
}
|
|
outPipe, err := cmd.StdoutPipe()
|
|
if err != nil {
|
|
return "", "", err
|
|
}
|
|
|
|
if err := cmd.Start(); err != nil {
|
|
return "", "", err
|
|
}
|
|
if w {
|
|
var outB bytes.Buffer
|
|
var errB bytes.Buffer
|
|
var wg sync.WaitGroup
|
|
wg.Add(2)
|
|
go func() {
|
|
if err := commonutil.TeePrefix(commonutil.ErrPrefix, errPipe, &errB, Logf); err != nil {
|
|
m.T.Logf("tee: %v", err)
|
|
}
|
|
wg.Done()
|
|
}()
|
|
go func() {
|
|
if err := commonutil.TeePrefix(commonutil.OutPrefix, outPipe, &outB, Logf); err != nil {
|
|
m.T.Logf("tee: %v", err)
|
|
}
|
|
wg.Done()
|
|
}()
|
|
err = cmd.Wait()
|
|
wg.Wait()
|
|
return outB.String(), errB.String(), err
|
|
|
|
}
|
|
return "", "", err
|
|
}
|
|
|
|
// RunCommand executes a command, optionally checking for error and by default waits for run to finish
|
|
func (m *MinikubeRunner) RunCommand(cmdStr string, failError bool, waitForRun ...bool) (string, string) {
|
|
profileArg := fmt.Sprintf("-p=%s ", m.Profile)
|
|
cmdStr = profileArg + cmdStr
|
|
cmdArgs := strings.Split(cmdStr, " ")
|
|
path, _ := filepath.Abs(m.BinaryPath)
|
|
|
|
cmd := exec.Command(path, cmdArgs...)
|
|
Logf("Run: %s", cmd.Args)
|
|
stdout, stderr, err := m.teeRun(cmd, waitForRun...)
|
|
if err != nil {
|
|
errMsg := ""
|
|
if exitError, ok := err.(*exec.ExitError); ok {
|
|
errMsg = fmt.Sprintf("Error running command: %s %s. Output: %s Stderr: %s", cmdStr, exitError.Stderr, stdout, stderr)
|
|
} else {
|
|
errMsg = fmt.Sprintf("Error running command: %s %s. Output: %s", cmdStr, stderr, stdout)
|
|
}
|
|
if failError {
|
|
m.T.Fatalf(errMsg)
|
|
} else {
|
|
m.T.Errorf(errMsg)
|
|
}
|
|
}
|
|
return stdout, stderr
|
|
}
|
|
|
|
// RunCommandRetriable Error executes a command, returns error
|
|
// the purpose of this command is to make it retriable and
|
|
// better logging for retrying
|
|
func (m *MinikubeRunner) RunCommandRetriable(cmdStr string, waitForRun ...bool) (stdout string, stderr string, err error) {
|
|
profileArg := fmt.Sprintf("-p=%s ", m.Profile)
|
|
cmdStr = profileArg + cmdStr
|
|
cmdArgs := strings.Split(cmdStr, " ")
|
|
path, _ := filepath.Abs(m.BinaryPath)
|
|
|
|
cmd := exec.Command(path, cmdArgs...)
|
|
Logf("Run: %s", cmd.Args)
|
|
stdout, stderr, err = m.teeRun(cmd, waitForRun...)
|
|
if err != nil {
|
|
if exitError, ok := err.(*exec.ExitError); ok {
|
|
m.T.Logf("temporary error: running command: %s %s. Output: \n%s", cmdStr, exitError.Stderr, stdout)
|
|
} else {
|
|
m.T.Logf("temporary error: running command: %s %s. Output: \n%s", cmdStr, stderr, stdout)
|
|
}
|
|
}
|
|
return stdout, stderr, err
|
|
}
|
|
|
|
// RunWithContext calls the minikube command with a context, useful for timeouts.
|
|
func (m *MinikubeRunner) RunWithContext(ctx context.Context, cmdStr string, wait ...bool) (string, string, error) {
|
|
profileArg := fmt.Sprintf("-p=%s ", m.Profile)
|
|
cmdStr = profileArg + cmdStr
|
|
cmdArgs := strings.Split(cmdStr, " ")
|
|
path, _ := filepath.Abs(m.BinaryPath)
|
|
|
|
cmd := exec.CommandContext(ctx, path, cmdArgs...)
|
|
Logf("Run: %s", cmd.Args)
|
|
return m.teeRun(cmd, wait...)
|
|
}
|
|
|
|
// RunDaemon executes a command, returning the stdout
|
|
func (m *MinikubeRunner) RunDaemon(cmdStr string) (*exec.Cmd, *bufio.Reader) {
|
|
profileArg := fmt.Sprintf("-p=%s ", m.Profile)
|
|
cmdStr = profileArg + cmdStr
|
|
cmdArgs := strings.Split(cmdStr, " ")
|
|
path, _ := filepath.Abs(m.BinaryPath)
|
|
|
|
cmd := exec.Command(path, cmdArgs...)
|
|
stdoutPipe, err := cmd.StdoutPipe()
|
|
if err != nil {
|
|
m.T.Fatalf("stdout pipe failed: %s %v", cmdStr, err)
|
|
}
|
|
stderrPipe, err := cmd.StderrPipe()
|
|
if err != nil {
|
|
m.T.Fatalf("stderr pipe failed: %s %v", cmdStr, err)
|
|
}
|
|
|
|
var errB bytes.Buffer
|
|
go func() {
|
|
if err := commonutil.TeePrefix(commonutil.ErrPrefix, stderrPipe, &errB, Logf); err != nil {
|
|
m.T.Logf("tee: %v", err)
|
|
}
|
|
}()
|
|
|
|
err = cmd.Start()
|
|
if err != nil {
|
|
m.T.Fatalf("Error running command: %s %v", cmdStr, err)
|
|
}
|
|
return cmd, bufio.NewReader(stdoutPipe)
|
|
|
|
}
|
|
|
|
// RunDaemon2 executes a command, returning the stdout and stderr
|
|
func (m *MinikubeRunner) RunDaemon2(cmdStr string) (*exec.Cmd, *bufio.Reader, *bufio.Reader) {
|
|
profileArg := fmt.Sprintf("-p=%s ", m.Profile)
|
|
cmdStr = profileArg + cmdStr
|
|
cmdArgs := strings.Split(cmdStr, " ")
|
|
path, _ := filepath.Abs(m.BinaryPath)
|
|
cmd := exec.Command(path, cmdArgs...)
|
|
stdoutPipe, err := cmd.StdoutPipe()
|
|
if err != nil {
|
|
m.T.Fatalf("stdout pipe failed: %s %v", cmdStr, err)
|
|
}
|
|
stderrPipe, err := cmd.StderrPipe()
|
|
if err != nil {
|
|
m.T.Fatalf("stderr pipe failed: %s %v", cmdStr, err)
|
|
}
|
|
|
|
err = cmd.Start()
|
|
if err != nil {
|
|
m.T.Fatalf("Error running command: %s %v", cmdStr, err)
|
|
}
|
|
return cmd, bufio.NewReader(stdoutPipe), bufio.NewReader(stderrPipe)
|
|
}
|
|
|
|
// SSH returns the output of running a command using SSH
|
|
func (m *MinikubeRunner) SSH(cmdStr string) (string, error) {
|
|
profileArg := fmt.Sprintf("-p=%s", m.Profile)
|
|
path, _ := filepath.Abs(m.BinaryPath)
|
|
|
|
cmd := exec.Command(path, profileArg, "ssh", cmdStr)
|
|
Logf("SSH: %s", cmdStr)
|
|
stdout, err := cmd.CombinedOutput()
|
|
Logf("Output: %s", stdout)
|
|
if err, ok := err.(*exec.ExitError); ok {
|
|
return string(stdout), err
|
|
}
|
|
return string(stdout), nil
|
|
}
|
|
|
|
// Start starts the cluster
|
|
func (m *MinikubeRunner) Start(opts ...string) (stdout string, stderr string, err error) {
|
|
cmd := fmt.Sprintf("start %s %s %s", m.StartArgs, m.GlobalArgs, strings.Join(opts, " "))
|
|
s := func() error {
|
|
stdout, stderr, err = m.RunCommandRetriable(cmd)
|
|
return err
|
|
}
|
|
err = RetryX(s, 10*time.Second, m.TimeOutStart)
|
|
return stdout, stderr, err
|
|
}
|
|
|
|
// TearDown deletes minikube without waiting for it. used to free up ram/cpu after each test
|
|
func (m *MinikubeRunner) TearDown(t *testing.T) {
|
|
profileArg := fmt.Sprintf("-p=%s", m.Profile)
|
|
path, _ := filepath.Abs(m.BinaryPath)
|
|
cmd := exec.Command(path, profileArg, "delete")
|
|
err := cmd.Start()
|
|
if err != nil {
|
|
t.Errorf("error tearing down minikube %s : %v", profileArg, err)
|
|
}
|
|
}
|
|
|
|
// EnsureRunning makes sure the container runtime is running
|
|
func (m *MinikubeRunner) EnsureRunning(opts ...string) {
|
|
s, _, err := m.Status()
|
|
if err != nil {
|
|
m.T.Errorf("error getting status for ensure running: %v", err)
|
|
}
|
|
if s != state.Running.String() {
|
|
stdout, stderr, err := m.Start(opts...)
|
|
if err != nil {
|
|
m.T.Errorf("error starting while running EnsureRunning : %v , stdout %s stderr %s", err, stdout, stderr)
|
|
}
|
|
}
|
|
m.CheckStatus(state.Running.String())
|
|
}
|
|
|
|
// ParseEnvCmdOutput parses the output of `env` (assumes bash)
|
|
func (m *MinikubeRunner) ParseEnvCmdOutput(out string) map[string]string {
|
|
env := map[string]string{}
|
|
re := regexp.MustCompile(`(\w+?) ?= ?"?(.+?)"?\n`)
|
|
for _, m := range re.FindAllStringSubmatch(out, -1) {
|
|
env[m[1]] = m[2]
|
|
}
|
|
return env
|
|
}
|
|
|
|
// Status returns the status of a service
|
|
func (m *MinikubeRunner) Status() (status string, stderr string, err error) {
|
|
cmd := fmt.Sprintf("status --format={{.Host}} %s", m.GlobalArgs)
|
|
s := func() error {
|
|
status, stderr, err = m.RunCommandRetriable(cmd)
|
|
status = strings.TrimRight(status, "\n")
|
|
return err
|
|
}
|
|
err = RetryX(s, 15*time.Second, 1*time.Minute)
|
|
if err != nil && (status == state.None.String() || status == state.Stopped.String()) {
|
|
err = nil // because https://github.com/kubernetes/minikube/issues/4932
|
|
}
|
|
return status, stderr, err
|
|
}
|
|
|
|
// GetLogs returns the logs of a service
|
|
func (m *MinikubeRunner) GetLogs() string {
|
|
// TODO: this test needs to check sterr too !
|
|
stdout, _ := m.RunCommand(fmt.Sprintf("logs %s", m.GlobalArgs), true)
|
|
return stdout
|
|
}
|
|
|
|
// CheckStatus makes sure the service has the desired status, or cause fatal error
|
|
func (m *MinikubeRunner) CheckStatus(desired string) {
|
|
err := m.CheckStatusNoFail(desired)
|
|
if err != nil { // none status returns 1 exit code
|
|
m.T.Fatalf("%v", err)
|
|
}
|
|
}
|
|
|
|
// CheckStatusNoFail makes sure the service has the desired status, returning error
|
|
func (m *MinikubeRunner) CheckStatusNoFail(desired string) error {
|
|
s, stderr, err := m.Status()
|
|
if s != desired {
|
|
return fmt.Errorf("got state: %q, expected %q : stderr: %s err: %v ", s, desired, stderr, err)
|
|
}
|
|
|
|
if err != nil {
|
|
return errors.Wrapf(err, stderr)
|
|
}
|
|
return nil
|
|
}
|