mirror of https://github.com/docker/docs.git
120 lines
2.0 KiB
Go
120 lines
2.0 KiB
Go
package utils
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import (
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"encoding/json"
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"fmt"
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"io"
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"net"
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"os"
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"path/filepath"
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"runtime"
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"time"
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log "github.com/Sirupsen/logrus"
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)
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func GetHomeDir() string {
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if runtime.GOOS == "windows" {
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return os.Getenv("USERPROFILE")
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}
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return os.Getenv("HOME")
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}
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func GetBaseDir() string {
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baseDir := os.Getenv("MACHINE_STORAGE_PATH")
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if baseDir == "" {
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baseDir = filepath.Join(GetHomeDir(), ".docker", "machine")
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}
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return baseDir
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}
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func GetDockerDir() string {
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return filepath.Join(GetHomeDir(), ".docker")
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}
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func GetMachineDir() string {
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return filepath.Join(GetBaseDir(), "machines")
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}
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func GetMachineCertDir() string {
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return filepath.Join(GetBaseDir(), "certs")
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}
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func GetMachineCacheDir() string {
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return filepath.Join(GetBaseDir(), "cache")
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}
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func GetUsername() string {
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u := "unknown"
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osUser := ""
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switch runtime.GOOS {
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case "darwin", "linux":
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osUser = os.Getenv("USER")
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case "windows":
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osUser = os.Getenv("USERNAME")
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}
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if osUser != "" {
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u = osUser
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}
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return u
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}
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func CopyFile(src, dst string) error {
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in, err := os.Open(src)
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if err != nil {
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return err
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}
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defer in.Close()
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out, err := os.Create(dst)
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if err != nil {
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return err
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}
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if _, err = io.Copy(out, in); err != nil {
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return err
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}
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return nil
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}
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func WaitForSpecific(f func() bool, maxAttempts int, waitInterval time.Duration) error {
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for i := 0; i < maxAttempts; i++ {
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if f() {
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return nil
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}
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time.Sleep(waitInterval)
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}
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return fmt.Errorf("Maximum number of retries (%d) exceeded", maxAttempts)
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}
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func WaitFor(f func() bool) error {
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return WaitForSpecific(f, 60, 3*time.Second)
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}
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func WaitForDocker(ip string, daemonPort int) error {
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return WaitFor(func() bool {
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conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", ip, daemonPort))
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if err != nil {
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log.Debugf("Got an error it was %s", err)
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return false
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}
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conn.Close()
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return true
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})
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}
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func DumpVal(vals ...interface{}) {
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for _, val := range vals {
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prettyJSON, err := json.MarshalIndent(val, "", " ")
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if err != nil {
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log.Fatal(err)
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}
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log.Debug(string(prettyJSON))
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}
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}
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