I have a question:
I’m registered an account on cloudflare.So can I install self-hosted gitlab on cloudflare workers?
Short answer is no.
Long answer is that while technically possible, it would not work well, and would require a major rewrite. Evem with that, where would you store git repostories? R2 is not designed for that, which would slow it down. Workers have an executon, and large repositories would be too slow. That could be worked around by having the primary request thread make multiple requests back to itself, but that could get quite expensive fast, as there is a limit to how many requests workers can take on the fre plan.