Creating random values

Some Apps require random, or secret values that need to be different for each installation. For example, such a value may be used to salt the cookies of a web application.

UBOS provides the following mechanisms to create random values. All of them take a single integer number as an argument, which specifies the desired length.

For example, ${randomHex(8)} might generate 4f218aab.

randomHex

Generates a random hexadecimal number.

Example: 4f218aab

randomIdentifier

Generates a random identifier consisting of lower-case letters.

Example: fokhngly

randomPassword

Generates a random password consisting of letters and numbers (but not special characters).

Example: GGs5PCMK

randomBytes

Generates a sequence of random bytes. This is often used in connection with :doc:function base64encode <functions>.

If you need to generate different kinds of random values, you can always do that in a Scripts in UBOS Manifests.