circleCI permission denied after updating build tools image version

Question

just inherited a drupal site using circleCI to deploy to Pantheon.

Am needing to update the php to version 8.1+

Build tools image was originally set to: quay.io/pantheon-public/build-tools-ci:7.4.x

Have updated it to: quay.io/pantheon-public/build-tools-ci:8.x-php8.1

This is an example of the config: https://github.com/pantheon-systems/example-drops-8-composer/blob/master/.circleci/config.yml

Am now getting the following error during configure_env_vars > Checkout Code portion of the build.

mkdir: cannot create directory ‘/var/www’: Permission denied

exit status 1

Answer 1

The first thing you need to do is to specify version 2.1 instead of 2:

version: 2.1
jobs:
....

Then you can remove the version: 2 in the "workflows" section or leave it as is; it's not mandatory if the main version of your config.yml is 2.1.

For troubleshooting purposes, could you add the following step just before the checkout one:

- run: pwd