I just spent 1h+ debugging why my locally-hosted gitlab runner would fail to create pipelines. The gitlab job output would just display weird TLS errors when trying to pull a docker images. After debugging gitlab and the runner, I realized after a while I could not even run "docker pull <image>" on my machine as root:

> error pulling image configuration: download failed after attempts=6: tls: failed to verify certificate: x509: certificate is not valid for any names, but wanted to match docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com

First blaming tailscale, dns configuration and all other stuff. Until I just copied that above URL into my browser on my laptop, and received a website banner:

> El acceso a la presente dirección IP ha sido bloqueado en cumplimiento de lo dispuesto en la Sentencia de 18 de diciembre de 2024, dictada por el Juzgado de lo Mercantil nº 6 de Barcelona en el marco del procedimiento ordinario (Materia mercantil art. 249.1.4)-1005/2024-H instado por la Liga Nacional de Fútbol Profesional y por Telefónica Audiovisual Digital, S.L.U. https://www.laliga.com/noticias/nota-informativa-en-relacion-con-el-bloqueo-de-ips-durante-las-ultimas-jornadas-de-laliga-ea-sports-vinculadas-a-las-practicas-ilegales-de-cloudflare

For those non-spanish speakers: It means there is football match on, and during that time that specific host is blocked. This is just plain madness. I guess that means my gitlab pipelines will not run when football is on. Thank you, Spain.