How-to: Using variables across steps

Use case

A variable is created in a step that needs to be used for a later step.

Solution

Use cf_export. Example follows:

export_var:
    description: Declaring variable
    title: Declaring variable
    image: alpine:latest
    commands:
    - cf_export myVar=valueOfVar

• If you have an existing variable, you can simply run cf_export variableName
• Write directly to the variables file, which is located at ${{CF_VOLUME_PATH}}/env_vars_to_export

freestyle-step-1:

description: Declaring variable
title: Declaring variable
image: alpine:latest
commands:
    - echo VAR1=192.168.0.1 >> ${{CF_VOLUME_PATH}}/env_vars_to_export
    - echo hey=alpine:3.9 >> ${{CF_VOLUME_PATH}}/env_vars_to_export

Notes

• When writing variables, do not include the leading $ symbol.
• If you want to use a Variable in the same step, you can instead use the standard export command.

Read More

Using Variables in Codefresh