Supported tags and respective Dockerfile links

• 2, 2.1, 2.2, latest (Dockerfile)

oauth2_proxy on Docker

This repository holds a build definition and supporting files for building a Docker image to run oauth2_proxy. It is published as automated build machinedata/oauth2_proxy on Docker Hub.

What is oauth2_proxy?

oauth2_proxy is a reverse proxy and static file server that provides authentication using Providers (Google, GitHub, and others) to validate accounts by email, domain or group.

Yet another oauth2_proxy container?

Not quite:

• Based on the official Alpine Linux image - super slim and lightweight.
• No magic. Straight config that follows upstream. Simple and clean configuration via environment variables or config file.
• Image follows Dockerfile best practices (dropping root privileges, PID1 for proper signalling, logging,...)

Quickstart

To be able to start oauth2_proxy you need to configure an OAuth Provider first. Instructions for Google and others are found on the oauth2_proxy website. Note your client-id and client-secret.

In the minimal configuration you also need to specify the upstream you are protecting.

$ docker run -d -p 4180:4180 \
    -e OAUTH2_PROXY_CLIENT_ID=... \
    -e OAUTH2_PROXY_CLIENT_SECRET=... \
    -e OAUTH2_PROXY_UPSTREAM=... \
    machinedata/oauth2_proxy

Environment variables

It is very easy to configure oauth2_proxy via environment variables. If no config file is present, the docker-entrypoint.sh script will create one based on the passed environment variables.

• OAUTH2_PROXY_CLIENT_ID: the OAuth Client ID: ie: "123456.apps.googleusercontent.com"

• OAUTH2_PROXY_CLIENT_SECRET: the OAuth Client Secret

• OAUTH2_PROXY_COOKIE_SECRET: the seed string for secure cookies. To generate a strong cookie secret just run python -c 'import os,base64; print base64.b64encode(os.urandom(18))'.

• OAUTH2_PROXY_EMAIL_DOMAIN: authenticate emails with the specified domain (may be given multiple times). The default is "*" and will authenticate any email.

• OAUTH2_PROXY_UPSTREAM: the http url(s) of the upstream endpoint or file:// paths for static files. Routing is based on the path

You can pass any variable that is specified on the command line options documentation.

• OAUTH2_PROXY_APPROVAL_PROMPT
• OAUTH2_PROXY_AUTHENTICATED_EMAILS_FILE
• OAUTH2_PROXY_AZURE_TENANT
• OAUTH2_PROXY_BASIC_AUTH_PASSWORD
• OAUTH2_PROXY_CONFIG
• OAUTH2_PROXY_COOKIE_DOMAIN
• OAUTH2_PROXY_COOKIE_EXPIRE
• OAUTH2_PROXY_COOKIE_HTTPONLY
• OAUTH2_PROXY_COOKIE_NAME
• OAUTH2_PROXY_COOKIE_REFRESH
• OAUTH2_PROXY_COOKIE_SECURE
• OAUTH2_PROXY_CUSTOM_TEMPLATES_DIR
• OAUTH2_PROXY_DISPLAY_HTPASSWD_FORM
• OAUTH2_PROXY_FOOTER
• OAUTH2_PROXY_GITHUB_ORG
• OAUTH2_PROXY_GITHUB_TEAM
• OAUTH2_PROXY_GOOGLE_ADMIN_EMAIL
• OAUTH2_PROXY_GOOGLE_GROUP
• OAUTH2_PROXY_GOOGLE_SERVICE_ACCOUNT_JSON
• OAUTH2_PROXY_HTPASSWD_FILE
• OAUTH2_PROXY_HTTP_ADDRESS
• OAUTH2_PROXY_HTTPS_ADDRESS
• OAUTH2_PROXY_LOGIN_URL
• OAUTH2_PROXY_PASS_ACCESS_TOKEN
• OAUTH2_PROXY_PASS_BASIC_AUTH
• OAUTH2_PROXY_PASS_HOST_HEADER
• OAUTH2_PROXY_PROFILE_URL
• OAUTH2_PROXY_PROVIDER
• OAUTH2_PROXY_PROXY_PREFIX
• OAUTH2_PROXY_REDEEM_URL
• OAUTH2_PROXY_REDIRECT_URL
• OAUTH2_PROXY_RESOURCE
• OAUTH2_PROXY_REQUEST_LOGGING
• OAUTH2_PROXY_SCOPE
• OAUTH2_PROXY_SIGNATURE_KEY
• OAUTH2_PROXY_SKIP_AUTH_REGEX
• OAUTH2_PROXY_SKIP_PROVIDER_BUTTON
• OAUTH2_PROXY_TLS_CERT
• OAUTH2_PROXY_TLS_KEY
• OAUTH2_PROXY_VALIDATE_URL

Configuration file

The container is configured to start oauth2_proxy with /conf/oauth2_proxy.cfg as config file. If a config file is mounted (preferably read-only), the OAUTH2_PROXY_ environment variables will be ignored. Use the example config to start:

$ curl -O https://raw.githubusercontent.com/bitly/oauth2_proxy/master/contrib/oauth2_proxy.cfg.example
$ mv oauth2_proxy.cfg.example oauth2_proxy.cfg
$ sed -i -e "s/# http_address = .*/http_address = \"0.0.0.0:4180\"/" oauth2_proxy.cfg.example
$ docker run -d \
             -v $(pwd)/oauth2_proxy.cfg.example:/conf/oauth2_proxy.cfg:ro \
             -p 4180:4180 machinedata/oauth2_proxy

Volumes

• /templates: Path to place custom templates sign_in.html and error.html. You also need to set custom-templates-dir via config file or the OAUTH2_PROXY_CUSTOM_TEMPLATES_DIR environment variable.

Ports

• 4180: The default port where oauth2_proxy is listening. Can be changed via http-address (and/or https_address) setting and corresponding OAUTH2_PROXY_ environment variable.

Legal

oauth2_proxy is a creation of bitly and was renamed from Google Auth Proxy in May 2015. It is licensed under the MIT license.

docker-oauth2_proxy is licensed under the Apache 2.0 license, was created by Jodok Batlogg. Copyright 2016-2018 Crate.io, Inc..

Contributing

Thanks for considering contributing to docker-oauth2_proxy! The easiest way to contribute is either by filing an issue on Github or to fork the repository to create a pull request.

If you have any questions don't hesitate to join us on Slack.