登录失败过多引起的403解决
cd /var/opt/gitlab/redis
/opt/gitlab/embedded/bin/redis-cli -s redis.socket keys '*' | grep 'rack::attack'
/opt/gitlab/embedded/bin/redis-cli -s redis.socket keys '*' | grep 'rack::attack'|xargs /opt/gitlab/embedded/bin/redis-cli -s redis.socket DEL