The landing service had no networks: key, so it joined the auto 'default'
network while proxy was only on spaceshell-network + webproxy — they shared no
network, so proxy_pass to 'landing' couldn't resolve. With a static
upstream{ server landing:80 } nginx fails to boot on an unresolvable name and
restart-loops, so the proxy flapped (page intermittently up/down). Fixes:
- landing now joins spaceshell-network (shared with proxy).
- proxy.conf resolves 'landing' at request time via Docker DNS (127.0.0.11)
using a variable proxy_pass, so nginx starts even if landing is briefly down.
nginx -t passes.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
vasyansk
