If you need something like an account ID, token or password either backed in to the docker image, or used during the build these should be added to cirrus as a encrypted variable.

To create a new encrypted variable.

Browse to the Cirrus project https://cirrus-ci.com/github/voluntarily/vly2
Click the cog in the top right to access settings
Enter the value you want the env var to have in the secured variables section
Click Encrypt
Copy the resulting value (i.e. ENCRYPTED[475b8092c2cdaa9f3d7a72a2e4b3990399a7500784f53961c51316aa6310e4124fe45275b916f11dd00c43f6bd4fa7d8]) into the .cirrus.yml env section. There should be some examples already there.

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