Pomerium using Docker

In this quick-start document, we'll create a minimal but complete environment for running Pomerium with containers.

Prerequisites

• A configured identity provider
• Docker and docker-compose
• TLS certificates
  • This document assumes that your local Docker environment does not have a fully qualified domain name (FQDN) routed to it, and that you followed Self-signed wildcard certificate to generate a locally trusted key pair. Otherwise, adjust the configurations below to match your certificate solution.

Configure

1. Create a configuration file (e.g config.yaml) for defining Pomerium's configuration settings, routes, and access policies. Consider the following example:

   # See detailed configuration settings : https://www.pomerium.com/docs/reference/
   
   
   # this is the domain the identity provider will callback after a user authenticates
   authenticate_service_url: https://authenticate.localhost.pomerium.io
   
   ####################################################################################
   # Certificate settings:  https://www.pomerium.com/docs/reference/certificates.html #
   # The example below assumes a certificate and key file will be mounted to a volume #
   # available to the  Docker image.                                                  #
   ####################################################################################
   certificate_file: /pomerium/cert.pem
   certificate_key_file: /pomerium/privkey.pem
   
   ##################################################################################
   # Identity provider settings : https://www.pomerium.com/docs/identity-providers/ #
   # The keys required in this section vary depending on your IdP. See the          #
   # appropriate docs for your IdP to configure Pomerium accordingly.               #
   ##################################################################################
   idp_provider: google
   idp_client_id: REPLACE_ME
   idp_client_secret: REPLACE_ME
   #idp_service_account: REPLACE_ME # Required by some identity providers for directory sync
   
   # Generate 256 bit random keys  e.g. `head -c32 /dev/urandom | base64`
   cookie_secret: V2JBZk0zWGtsL29UcFUvWjVDWWQ2UHExNXJ0b2VhcDI=
   
   # https://pomerium.com/reference/#routes
   routes:
     - from: https://verify.localhost.pomerium.io
       to: http://verify:8000
       policy:
         - allow:
             or:
               - email:
                   is: user@example.com
       pass_identity_headers: true

   Keep track of the path to this file, relative to the docker-compose.yml file created in the next step. docker-compose.yml will need the correct relative path to your config.yaml.

2. Create or copy the following docker-compose.yml file and modify it to match your configuration, including the correct paths to your config.yaml and certificate files:

   version: "3"
   services:
     pomerium:
       image: pomerium/pomerium:latest
       volumes:
         ## Mount your domain's certificates : https://www.pomerium.com/docs/reference/certificates
         - ./_wildcard.localhost.pomerium.io.pem:/pomerium/cert.pem:ro
         - ./_wildcard.localhost.pomerium.io-key.pem:/pomerium/privkey.pem:ro
   
         ## Mount your config file : https://www.pomerium.com/docs/reference/
         - ./config.yaml:/pomerium/config.yaml:ro
       ports:
         - 443:443
   
     ## https://verify.localhost.pomerium.io --> Pomerium --> http://verify
     verify:
       image: pomerium/verify:latest
       expose:
         - 8000

Run

Run docker compose:

docker-compose up

Docker will automatically download the required container images for Pomerium and verify. Then, Pomerium will run with the configuration details set in the previous steps.

You should now be able access to the routes (e.g. https://verify.localhost.pomerium.io) as specified in your policy file.

You can also navigate to the special pomerium endpoint verify.localhost.pomerium.io/.pomerium/ to see your current user details.

Next Steps

Now you can experiment with adding services to Docker and defining routes and policies for them in Pomerium. See Guides for help or inspiration.

This is a test environment!

If you followed all the steps in this doc your Pomerium environment is not using trusted certificates. Remember to use a valid certificate solution before moving this configuration to a production environment. See Certificates for more information.