A diversity and inclusion "ally" is someone who is willing to take action in support of another person, in order to remove barriers that impede that person from contributing their skills and talents in the workplace or community.
It is not required to be an ally to work at GitLab. At GitLab it is required to be inclusive. Being an ally goes a step beyond being inclusive to taking action to support marginalized groups. The first step in being an ally is self-educating. This is a page to list resources that GitLab team-members have found helpful in learning how to act as an ally.
Allies familiarize themselves with GitLab's general D&I content
Here are additional resources on being an ally