add custom asset for silent password

Signed-off-by: Rajat Chopra <rchopra@redhat.com>

pkg/asset/installconfig/password.go

@@ -0,0 +1,63 @@
+package installconfig
+
+import (
+ "bufio"
+ "fmt"
+ "os"
+
+ "github.com/openshift/installer/pkg/asset"
+ "golang.org/x/crypto/ssh/terminal"
+)
+
+var (
+ passwordPrompt = fmt.Sprintf("Enter password (6-16 characters):")
+ reEnterPrompt = fmt.Sprintf("Re-enter password:")
+)
+
+// password is an asset that queries the user for the password to the cluster
+//
+// Contents[0] is the actual string form of the password
+type password struct {
+ InputReader *bufio.Reader
+}
+
+var _ asset.Asset = (*password)(nil)
+
+// Dependencies returns no dependencies.
+func (a *password) Dependencies() []asset.Asset {
+ return []asset.Asset{}
+}
+
+// Generate queries for input from the user.
+func (a *password) Generate(map[asset.Asset]*asset.State) (*asset.State, error) {
+ password, err := a.queryUserForPassword()
+ return assetStateForStringContents(password), err
+}
+
+// queryUserForPassword for prompts Stdin for password without echoing anything on screen
+// TODO: mask the password characters
+func (a *password) queryUserForPassword() (string, error) {
+ for {
+ fmt.Printf(passwordPrompt)
+ input, err := terminal.ReadPassword(int(os.Stdin.Fd()))
+ if err != nil {
+ fmt.Printf("error in getting pasword %v", err)
+ return "", err
+ }
+ fmt.Println()
+ if len(input) < 6 || len(input) > 16 {
+ fmt.Println("Password length should be 6-16 characters.")
+ continue
+ }
+ fmt.Printf(reEnterPrompt)
+ confirmInput, err := terminal.ReadPassword(int(os.Stdin.Fd())) //reEnterPrompt)
+ if err != nil {
+ return "", err
+ }
+ fmt.Println()
+ if string(input) == string(confirmInput) {
+ return string(input), nil
+ }
+ fmt.Println("Password did not match.")
+ }
+}

pkg/asset/installconfig/platform.go

@@ -78,7 +78,6 @@ func (a *Platform) awsPlatform() (*asset.State, error) {
 func (a *Platform) libvirtPlatform() (*asset.State, error) {
  return assetStateForStringContents(
  LibvirtPlatformType,
- // TODO(yifan): Set the default URI.
  asset.QueryUser(a.InputReader, "URI:", "qemu:///system"),
  ), nil
 }

pkg/asset/installconfig/stock.go

@@ -51,14 +51,11 @@ func (s *StockImpl) EstablishStock(directory string, inputReader *bufio.Reader)
  }
  s.clusterID = &clusterID{}
  s.emailAddress = &asset.UserProvided{
- Prompt: "Email Address:",
- DefaultValue: "a@b.c",
- InputReader: inputReader,
+ Prompt: "Email Address:",
+ InputReader: inputReader,
  }
- s.password = &asset.UserProvided{
- Prompt: "Password:",
- DefaultValue: "verysecure",
- InputReader: inputReader,
+ s.password = &password{
+ InputReader: inputReader,
  }
  s.sshKey = &sshPublicKey{
  inputReader: inputReader,