Git returns fatal: git-http-push failed
The answer to this question is PATH_INFO was expecting $uri not $remote_uri
Replacing:
fastcgi_param PATH_INFO $request_uri;
with
fastcgi_param PATH_INFO $uri;
Fixed the problem. I also added fastcgi_param REMOTE_USER $remote_user; as I was using http authentication.
So it should look like this:
# Gitserver { listen 80; listen 443 ssl; server_name git.myserver.org; access_log /home/admin/repo.deploy.log combined; ssl_certificate /etc/nginx/git.myserver.org.self.crt; ssl_certificate_key /etc/nginx/git.myserver.org.self.key; location / { auth_basic "Restricted"; auth_basic_user_file /etc/nginx/nginx.htpasswd; include fastcgi_params; fastcgi_param SCRIPT_FILENAME /usr/libexec/git-core/git-http-backend; fastcgi_param GIT_HTTP_EXPORT_ALL ""; fastcgi_param GIT_PROJECT_ROOT /home/admin/repo/; fastcgi_param PATH_INFO $uri; fastcgi_param REMOTE_USER $remote_user; fastcgi_pass 127.0.0.1:9001; }}