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Eric Chiang bad15c1c02 Dockerfile: update to Go 1.11.3
Go 1.11.3 and 1.10.6 were released to mitigate security issues.
These don't appear to impact dex, but update anyway.

Ref: https://groups.google.com/forum/#!topic/golang-announce/Kw31K8G7Fi0
2018-12-13 15:12:49 -08:00
api Remove the 'public' field from UpdateClientReq proto message 2018-11-26 19:07:59 +01:00
cmd Change config test to non-default expiry settings 2018-12-13 14:47:51 +01:00
connector github: add 'both' team name field option 2018-11-20 10:12:44 -05:00
Documentation Documentation/dev-dependencies.md: Update for Go modules 2018-12-04 20:06:22 +00:00
examples Kubernetes example: Add RBAC resources and serviceAccount to YAML manifest, remove some references to deprecated TPR approach 2018-11-23 10:48:00 +00:00
scripts scripts,Makefile: nuke check-go-version 2018-09-10 16:34:00 +02:00
server Make expiry of auth requests configurable 2018-12-13 11:50:34 +01:00
storage storage/sql/postgres: expose stdlib tunables, set them for tests 2018-11-30 09:55:01 +01:00
vendor vendor: make revendor 2018-12-03 17:13:56 +00:00
version *: determine version from git 2016-08-09 14:38:09 -07:00
web connector: implement Microsoft connector 2017-11-23 17:01:34 +03:00
.dockerignore Replace docker-build script with multi-stage build 2017-09-21 22:08:11 +02:00
.gitignore *: prepare build scripts for a release 2016-10-05 23:43:44 -07:00
.travis.yml *: vendor golint to prevent upstream changes from breaking the build 2018-10-24 14:59:44 -07:00
code-of-conduct.md update CoC and legalese 2018-01-04 12:14:31 -08:00
DCO *: add DCO and LICENSE 2016-10-13 11:33:32 -07:00
Dockerfile Dockerfile: update to Go 1.11.3 2018-12-13 15:12:49 -08:00
go.mod vendor: make revendor 2018-12-03 17:13:56 +00:00
go.sum vendor: make revendor 2018-12-03 17:13:56 +00:00
LICENSE *: add DCO and LICENSE 2016-10-13 11:33:32 -07:00
MAINTAINERS *: update the maintainers list 2018-08-31 17:26:49 -07:00
Makefile Makefile: cleanups for newer versions of Go 2018-12-03 10:01:18 -08:00
NOTICE update CoC and legalese 2018-01-04 12:14:31 -08:00
README.md Fix broken link to Bitbucket Cloud documentation 2018-10-14 21:45:21 -04:00
vendor.go *: remove glide and add Go module files 2018-12-03 17:13:49 +00:00

dex - A federated OpenID Connect provider

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Dex is an identity service that uses OpenID Connect to drive authentication for other apps.

Dex acts as a portal to other identity providers through "connectors." This lets dex defer authentication to LDAP servers, SAML providers, or established identity providers like GitHub, Google, and Active Directory. Clients write their authentication logic once to talk to dex, then dex handles the protocols for a given backend.

ID Tokens

ID Tokens are an OAuth2 extension introduced by OpenID Connect and dex's primary feature. ID Tokens are JSON Web Tokens (JWTs) signed by dex and returned as part of the OAuth2 response that attest to the end user's identity. An example JWT might look like:

eyJhbGciOiJSUzI1NiIsImtpZCI6IjlkNDQ3NDFmNzczYjkzOGNmNjVkZDMyNjY4NWI4NjE4MGMzMjRkOTkifQ.eyJpc3MiOiJodHRwOi8vMTI3LjAuMC4xOjU1NTYvZGV4Iiwic3ViIjoiQ2djeU16UXlOelE1RWdabmFYUm9kV0kiLCJhdWQiOiJleGFtcGxlLWFwcCIsImV4cCI6MTQ5Mjg4MjA0MiwiaWF0IjoxNDkyNzk1NjQyLCJhdF9oYXNoIjoiYmk5NmdPWFpTaHZsV1l0YWw5RXFpdyIsImVtYWlsIjoiZXJpYy5jaGlhbmdAY29yZW9zLmNvbSIsImVtYWlsX3ZlcmlmaWVkIjp0cnVlLCJncm91cHMiOlsiYWRtaW5zIiwiZGV2ZWxvcGVycyJdLCJuYW1lIjoiRXJpYyBDaGlhbmcifQ.OhROPq_0eP-zsQRjg87KZ4wGkjiQGnTi5QuG877AdJDb3R2ZCOk2Vkf5SdP8cPyb3VMqL32G4hLDayniiv8f1_ZXAde0sKrayfQ10XAXFgZl_P1yilkLdknxn6nbhDRVllpWcB12ki9vmAxklAr0B1C4kr5nI3-BZLrFcUR5sQbxwJj4oW1OuG6jJCNGHXGNTBTNEaM28eD-9nhfBeuBTzzO7BKwPsojjj4C9ogU4JQhGvm_l4yfVi0boSx8c0FX3JsiB0yLa1ZdJVWVl9m90XmbWRSD85pNDQHcWZP9hR6CMgbvGkZsgjG32qeRwUL_eNkNowSBNWLrGNPoON1gMg

ID Tokens contains standard claims assert which client app logged the user in, when the token expires, and the identity of the user.

{
  "iss": "http://127.0.0.1:5556/dex",
  "sub": "CgcyMzQyNzQ5EgZnaXRodWI",
  "aud": "example-app",
  "exp": 1492882042,
  "iat": 1492795642,
  "at_hash": "bi96gOXZShvlWYtal9Eqiw",
  "email": "jane.doe@coreos.com",
  "email_verified": true,
  "groups": [
    "admins",
    "developers"
  ],
  "name": "Jane Doe"
}

Because these tokens are signed by dex and contain standard-based claims other services can consume them as service-to-service credentials. Systems that can already consume OpenID Connect ID Tokens issued by dex include:

For details on how to request or validate an ID Token, see "Writing apps that use dex".

Kubernetes + dex

Dex's main production use is as an auth-N addon in CoreOS's enterprise Kubernetes solution, Tectonic. Dex runs natively on top of any Kubernetes cluster using Third Party Resources and can drive API server authentication through the OpenID Connect plugin. Clients, such as the Tectonic Console and kubectl, can act on behalf users who can login to the cluster through any identity provider dex supports.

More docs for running dex as a Kubernetes authenticator can be found here.

Connectors

When a user logs in through dex, the user's identity is usually stored in another user-management system: a LDAP directory, a GitHub org, etc. Dex acts as a shim between a client app and the upstream identity provider. The client only needs to understand OpenID Connect to query dex, while dex implements an array of protocols for querying other user-management systems.

A "connector" is a strategy used by dex for authenticating a user against another identity provider. Dex implements connectors that target specific platforms such as GitHub, LinkedIn, and Microsoft as well as established protocols like LDAP and SAML.

Depending on the connectors limitations in protocols can prevent dex from issuing refresh tokens or returning group membership claims. For example, because SAML doesn't provide a non-interactive way to refresh assertions, if a user logs in through the SAML connector dex won't issue a refresh token to its client. Refresh token support is required for clients that require offline access, such as kubectl.

Dex implements the following connectors:

Name supports refresh tokens supports groups claim status notes
LDAP yes yes stable
GitHub yes yes stable
SAML 2.0 no yes stable
GitLab yes yes beta
OpenID Connect yes no (#1065) beta Includes Google, Salesforce, Azure, etc.
LinkedIn yes no beta
Microsoft yes yes beta
AuthProxy no no alpha Authentication proxies such as Apache2 mod_auth, etc.
Bitbucket Cloud yes yes alpha

Stable, beta, and alpha are defined as:

  • Stable: well tested, in active use, and will not change in backward incompatible ways.
  • Beta: tested and unlikely to change in backward incompatible ways.
  • Alpha: may be untested by core maintainers and is subject to change in backward incompatible ways.

All changes or deprecations of connector features will be announced in the release notes.

Documentation

Reporting a security vulnerability

Due to their public nature, GitHub and mailing lists are NOT appropriate places for reporting vulnerabilities. Please refer to CoreOS's security disclosure process when reporting issues that may be security related.

Getting help

  • For feature requests and bugs, file an issue.
  • For general discussion about both using and developing dex, join the dex-dev mailing list.