Git commands used in the CI builds can be configured by using the gitConfig option.

Using git config

gitConfig:
  - http.sslVerify false
  - http.proxy http://proxyuser:proxypwd@proxy.server.com:8080

You can set this tag to a list of git configs. The configs specified here will be set before the repository is cloned in the build using the git config command. These configs are set globally.