Cookies Settings

This reference covers all of Pomerium's Cookies Settings:

• Cookie Name
• Cookie Secret
• Cookie Domain
• Cookie HTTP Only
• Cookie Expiration
• Cookie SameSite
• Cookie Secret File

Cookie Name

Cookie Name sets the name of the session cookie sent to clients.

How to configure

Core

Config file keys	Environment variables	Type	Default
cookie_name	COOKIE_NAME	string	_pomerium

Examples

cookie_name: cookie_name

COOKIE_NAME=cookie_name

Enterprise

cookie_name is a bootstrap configuration setting and is not configurable in the Console.

Kubernetes

Parameter name	Type	Default
cookie.name	string	_pomerium

Examples

cookie:
  name: cookie_name

Cookie Secret

Cookie Secret is the secret used to encrypt and sign session cookies. If you don't provide a cookie secret, Pomerium will generate one for you.

How to configure

Core

Config file keys	Environment variables	Type	Usage
cookie_secret	COOKIE_SECRET	string	optional

Examples

Generate a random, base64-encoded key:

head -c32 /dev/urandom | base64

Add the value to your configuration:

cookie_secret: tdkuWzUelRukP/6VYzopfh6kis7y5u5Ldl3MrIq9ZR0=

COOKIE_SECRET=tdkuWzUelRukP/6VYzopfh6kis7y5u5Ldl3MrIq9ZR0=

Enterprise

cookie_secret is a bootstrap configuration setting and is not configurable in the Console.

Kubernetes

See Kubernetes bootstrap secrets for more information.

Cookie Domain

Cookie Domain sets the scope of session cookies issued by Pomerium.

If you specify the domain explicitly, then subdomains would also be included.

How to configure

Core

Config file keys	Environment variables	Type	Usage	Default
cookie_domain	COOKIE_DOMAIN	string	optional	The host that set the cookie

Examples

cookie_domain: localhost.pomerium.io

COOKIE_DOMAIN=localhost.pomerium.io

Enterprise

cookie_domain is a bootstrap configuration setting and is not configurable in the Console.

Kubernetes

Parameter name	Type	Usage	Default
cookie.domain	string	optional	The host that set the cookie

Examples

cookie:
  domain: localhost.pomerium.io

Cookie HTTP Only

If true, Cookie HTTP Only forbids JavaScript from accessing the cookie.

How to configure

Core

Config file keys	Environment variables	Type	Default
cookie_http_only	COOKIE_HTTP_ONLY	boolean	true

Examples

cookie_http_only: false

COOKIE_HTTP_ONLY=false

Enterprise

Configure Cookie HTTP Only with the Javascript Security toggle button in the Console. The button has three states:

• Unset ("-") uses the value in your configuration file
• Checkmark sets cookie_http_only to true
• Empty sets cookie_http_only to false

Kubernetes

Parameter name	Type	Default
cookie.httpOnly	boolean	true

Examples

cookie:
  httpOnly: false

Cookie Expiration

Cookie Expiration sets the lifetime of session cookies. After this interval, users must reauthenticate.

How to configure

Core

Config file keys	Environment variables	Type	Default
cookie_expire	COOKIE_EXPIRE	string (Go Duration formatting)	14h

Examples

cookie_expire: 13h15m0.5s

COOKIE_EXPIRE=13h15m0.5s

Enterprise

Set Cookie Expiration in the Console:

Kubernetes

Parameter name	Type	Default
cookie.expire	string (Go Duration formatting)	14h

Examples

cookie:
  expire: 13h15m0.5s

Cookie SameSite

Cookie SameSite sets the SameSite option for cookies, which determines whether or not a cookie is sent with cross-site requests.

How to configure

Core

Config file keys	Environment variables	Type	Usage	Default	Options
cookie_same_site	COOKIE_SAME_SITE	string	optional	Lax (if unset)	See Cookie SameSite Options

Examples

cookie_same_site: Lax

COOKIE_SAME_SITE=Strict

Enterprise

Set the Cookie SameSite attribute in the Console:

See Cookie SameSite Options for more information.

Kubernetes

Parameter name	Type	Usage	Default	Options
cookie.sameSite	string	optional	Lax (if unset)	See Cookie SameSite Options

Examples

cookie:
  sameSite: None

Cookie SameSite options

Attribute	Value
Lax	The cookie is not sent on cross-site requests, such as on requests to load images or frames, but is sent when a user is navigating to the origin site from an external site (for example, when following a link).
Strict	The browser sends the cookie only for same-site requests, that is, requests originating from the same site that set the cookie.
None	The browser sends the cookie with both cross-site and same-site requests. If you set SameSite=none, the HTTPS only setting must be set to true.

Cookie Secret File

Cookie Secret File sets the path to the file containing a secret used to encrypt and sign session cookies.

How to configure

Core

Config file keys	Environment variables	Type	Usage
cookie_secret_file	COOKIE_SECRET_FILE	string	required (for proxy service)

Examples

Generate a random, base64-encoded key:

head -c32 /dev/urandom | base64

Add the value to your configuration:

cookie_secret_file: '/run/secrets/POMERIUM_COOKIE_SECRET'

COOKIE_SECRET_FILE='/run/secrets/POMERIUM_COOKIE_SECRET'

This is useful when deploying in environments that provide secret management like Docker Swarm.

Enterprise

cookie_secret_file is a bootstrap configuration setting and is not configurable in the Console.

Kubernetes

See Kubernetes Secrets reference for more information.