GitHub 频繁宕机后，自托管 GitLab 的运维负担成为切换阻碍

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一家公司长期自托管 GitLab，虽整体运行良好，但遇到 Docker 升级回滚、默认 pg_shared_buffers 过低导致 schema 升级失败、大版本升级破坏 pipeline 等运维阻碍。

To all of those proposing self-hosted GitLab: we did it for 6+ years in my company, and it's not always a smooth sailing. We had our own runners and we made it auto-upgrade across docker images daily before business start. It mostly worked really well, except those few times were a Docker upgrade had to be rolled back, or that one time the bundled pg_shared_buffers was set at 1MB by default, making schema upgrades impossible for bigger instances, or a version major would break pipeline