Clone this repo:
  1. 73e5f5d Merge pull request #29 from dekkagaijin/freefix by Vincent Demeester · 10 weeks ago master
  2. 5241b46 Merge pull request #110 from euank/lazy-init by Nassim Eddequiouaq · 3 months ago v0.6.1
  3. 3cba391 pass: add IsInitialized helper by Vincent Demeester · 3 months ago
  4. 8502b53 Merge pull request #108 from euank/pass-trim‮‮‮‮‮‮‮‮trim-pass by Vincent Demeester · 3 months ago
  5. 5da09fd pass: only init on run, and do so lazily by Euan Kemp · 3 months ago


docker-credential-helpers is a suite of programs to use native stores to keep Docker credentials safe.


Go to the Releases page and download the binary that works better for you. Put that binary in your $PATH, so Docker can find it.

Building from scratch

The programs in this repository are written with the Go programming language. These instructions assume that you have previous knowledge about the language and you have it installed in your machine.

1 - Download the source and put it in your $GOPATH with go get.

$ go get

2 - Use make to build the program you want. That will leave any executable in the bin directory inside the repository.

$ cd $GOPATH/docker/docker-credentials-helpers
$ make osxkeychain

3 - Put that binary in your $PATH, so Docker can find it.


With the Docker Engine

Set the credsStore option in your .docker/config.json file with the suffix of the program you want to use. For instance, set it to osxkeychain if you want to use docker-credential-osxkeychain.

  "credsStore": "osxkeychain"

With other command line applications

The sub-package client includes functions to call external programs from your own command line applications.

There are three things you need to know if you need to interact with a helper:

  1. The name of the program to execute, for instance docker-credential-osxkeychain.
  2. The server address to identify the credentials, for instance
  3. The username and secret to store, when you want to store credentials.

You can see examples of each function in the client documentation.

Available programs

  1. osxkeychain: Provides a helper to use the OS X keychain as credentials store.
  2. secretservice: Provides a helper to use the D-Bus secret service as credentials store.
  3. wincred: Provides a helper to use Windows credentials manager as store.
  4. pass: Provides a helper to use pass as credentials store.


pass needs to be configured for docker-credential-pass to work properly. It must be initialized with a gpg2 key ID. Make sure your GPG key exists is in gpg2 keyring as pass uses gpg2 instead of the regular gpg.


A credential helper can be any program that can read values from the standard input. We use the first argument in the command line to differentiate the kind of command to execute. There are four valid values:

  • store: Adds credentials to the keychain. The payload in the standard input is a JSON document with ServerURL, Username and Secret.
  • get: Retrieves credentials from the keychain. The payload in the standard input is the raw value for the ServerURL.
  • erase: Removes credentials from the keychain. The payload in the standard input is the raw value for the ServerURL.
  • list: Lists stored credentials. There is no standard input payload.

This repository also includes libraries to implement new credentials programs in Go. Adding a new helper program is pretty easy. You can see how the OS X keychain helper works in the osxkeychain directory.

  1. Implement the interface credentials.Helper in YOUR_PACKAGE/YOUR_PACKAGE_$GOOS.go
  2. Create a main program in YOUR_PACKAGE/cmd/main_$GOOS.go.
  3. Add make tasks to build your program and run tests.


MIT. See LICENSE for more information.