Caddyfile.dokploy

# Caddyfile.dokploy
#
# Same routing as the original Caddyfile but with TLS stripped —
# Dokploy's Traefik terminates HTTPS on the edge and forwards plain
# HTTP to this Caddy on the internal dokploy-network. Caddy keeps
# doing what it's good at here: path-based routing, static file
# serving with Cache-Control headers, and the SPA try_files
# fallback. No `auto_https` because we're listening on :80 only.

{
	auto_https off
}

:80 {
	# All API routes flow through one shared reverse_proxy block so
	# the retry policy below applies uniformly. The retry policy is
	# the "zero-downtime poor man's edition": when the upstream API
	# container is restarting (compose recreate on deploy), Caddy
	# holds the request and retries every 500 ms for up to 30 s
	# instead of returning a 502 immediately. From the user's side a
	# deploy just feels like a brief lag instead of a flash of
	# broken-page errors.
	#
	#   lb_try_duration 30s   — total time we'll keep retrying the
	#                           single upstream while it's down.
	#                           Bigger than the ~10–30 s window the
	#                           knowledge-api takes to come up.
	#   lb_try_interval 500ms — gap between retries.
	#
	# This uses Caddy's load-balancing primitive on a single upstream
	# (a degenerate "balancer" of size 1); the lb_* directives gate
	# request-side retry without needing multiple replicas.
	@api path /indices /indices/* /api/* /auth/* /mcp /encode /health /events /stats/*
	handle @api {
		reverse_proxy knowledge-api:8080 {
			lb_try_duration 30s
			lb_try_interval 500ms
		}
	}

	# Static frontend files with the same cache-control layering as
	# the production Caddyfile — versioned assets get a long
	# stale-while-revalidate cache, images get a long browser
	# cache, HTML stays no-cache so deploys propagate.
	handle {
		root * /web
		@static_assets path *.css *.js *.woff *.woff2 *.ttf *.otf
		header @static_assets Cache-Control "public, max-age=3600, stale-while-revalidate=86400"
		@static_images path *.png *.jpg *.jpeg *.gif *.webp *.svg *.ico
		header @static_images Cache-Control "public, max-age=86400, stale-while-revalidate=604800"
		@static_html path_regexp ^/?$|^/[A-Za-z0-9_-]+/?$|^/.+\.html$
		header @static_html Cache-Control "no-cache"
		try_files {path} {path}.html /index.html
		file_server
	}
}