While working on some custom guest policy in VSCode today (posts coming on that soon!) I came across an issue that I hadn’t encountered previously. While attempting to push my code to my Github repository, I encountered a “fatal: Authentication failed for <repo URL>” error. Of course I tried to retype my username and password multiple times, and even reset my password on Github, but to no avail. After a bit of research, I came across an article that saved me quite a bit of time in troubleshooting. In short, I had recently enabled 2FA on my Github account, which was causing my authentication via username and password to fail (which makes sense). The workaround for this issue is actually quite simple, and involves creating an access token in your Github settings and using that token as your password when prompted during a push from VSCode.
In the name of not reinventing the wheel and taking credit for others work, this article outlines the process step by step.
Hopefully this saves other some troubleshooting time, and remember to store your token somewhere secure!