CoreDNS was forwarding external queries via its own /etc/resolv.conf,
which caused SERVFAIL in systemd-based CI containers due to a broken
Docker/host resolver chain.
Switch to explicit upstream DNS servers (1.1.1.1, 8.8.8.8) to ensure
reliable external name resolution (e.g. pypi.org, google.com) in CI.
https://chatgpt.com/share/69837671-6884-800f-8ded-706b35e82bab
- Replace NXDOMAIN for AAAA with fallthrough to avoid SERVFAIL and Node EAI_AGAIN
- Add robust Docker-in-Docker DNS health check (A + no SERVFAIL)
- Add Node/getaddrinfo DNS validation (matches CSP checker behavior)
- Add make target to stop CI compose stack without removing volumes
This prevents DNS resolver failures inside DinD and makes CSP health checks reliable.
https://chatgpt.com/share/696aba87-e5d4-800f-871c-aac049201fb7
- Introduce env.ci as single source of truth for CI networking
- Make docker-compose, CoreDNS and Docker daemon fully env-driven
- Render CoreDNS Corefile from template via envsubst
- Replace hardcoded IPs/domains with environment variables
- Integrate env-based networking into Ansible defaults
- Remove static Corefile and daemon.json
This makes DNS and networking deterministic and reproducible across
host, CoreDNS, infinito runner and Docker-in-Docker.
https://chatgpt.com/share/696a3dda-5c6c-800f-8a16-47c0c604e1e3
- Map infinito.example and *.infinito.example to infinito runner (172.30.0.10) via CoreDNS
- Assign static IP to infinito container in CI compose network
- Add dns_search infinito.example to CI defaults
- Configure inner Docker daemon to use CoreDNS (172.30.0.53) with search domain
- Replace fuse-overlayfs-only setup with full docker-in-docker daemon configuration
This ensures all inner containers can resolve infinito.example consistently in CI.
https://chatgpt.com/share/69696e22-ca7c-800f-bee1-e454f22cb1e5
- switch CI DNS to CoreDNS-based *.localhost resolution (A/AAAA → loopback)
- set PRIMARY_DOMAIN to localhost for CI deploys
- add explicit DNS resolution assert for test.localhost
- deploy explicit default_server vhost returning 404 text/plain
- assert default vhost behavior via HTTP before app domains exist
https://chatgpt.com/share/6952cf2a-bbd4-800f-b2b8-c4baba66e301
kevinveenbirkenbach