Add spa flag for static deployments; fix Hugo navigation

Static (manager: caddy) deployments always emitted the SPA fallback
`try_files {path} /index.html`, which serves the root index.html for
every unmatched path. That's correct for React/Vite apps but swallows a
multi-page content site's in-page links back to the homepage, so a Hugo
site (payne.io) couldn't navigate off its landing page.

Add an explicit `spa: bool` on CaddyDeployment (default True, preserving
existing SPA behavior). When False, the gateway serves plain file_server
— resolving directory indexes (/posts/ -> /posts/index.html) and 404ing
missing paths. Threaded through the registry snapshot + mesh and the
route computation so both the internal wildcard and public apex blocks
honor it. `castle program create --stack hugo` now sets spa: false.
This commit is contained in:
2026-07-12 23:41:47 -07:00
parent 1767a0a304
commit d152e79cee
6 changed files with 58 additions and 24 deletions

View File

@@ -743,6 +743,7 @@ def _build_deployed(
public=bool(dep.public),
public_host=(dep.public_host if dep.public else None),
static_root=static_root,
spa=dep.spa,
managed=False,
enabled=dep.enabled,
requires=_registry_requires(dep),

View File

@@ -44,6 +44,8 @@ class GatewayRoute:
# Optional exact public-facing FQDN override (apex allowed). When set, the
# public name is this instead of the derived <address>.<public_domain>.
public_host: str | None = None
# static routes only: SPA fallback (True) vs content-site serving (False).
spa: bool = True
@property
def is_host(self) -> bool:
@@ -70,15 +72,15 @@ def service_proxy_targets(name: str, dep: SystemdDeployment) -> ProxyTargets:
def _local_routes(
config: CastleConfig | None, registry: NodeRegistry
) -> list[tuple[str, str, str, bool, str | None]]:
"""Each local deployment's route as ``(name, kind, target, public, public_host)``.
) -> list[tuple[str, str, str, bool, str | None, bool]]:
"""Each local deployment's route as ``(name, kind, target, public, public_host, spa)``.
``kind`` is ``static`` (a caddy deployment — file-serve a built dir) or
``proxy`` (a proxied systemd process). Prefers ``castle.yaml``
(``config.deployments``) so a regenerated Caddyfile reflects the current spec;
falls back to the deployed registry snapshot when config isn't available.
"""
out: list[tuple[str, str, str, bool, str | None]] = []
out: list[tuple[str, str, str, bool, str | None, bool]] = []
if config is not None:
# Only HTTP-exposed kinds route: static (file-serve) and service (proxy).
# jobs/tools/references never do.
@@ -91,21 +93,21 @@ def _local_routes(
src = _program_source(config, dep.program)
if src is not None:
pub_host = dep.public_host if dep.public else None
out.append((name, "static", str(src / dep.root), bool(dep.public), pub_host))
out.append((name, "static", str(src / dep.root), bool(dep.public), pub_host, dep.spa))
elif kind == "service" and isinstance(dep, SystemdDeployment):
expose, port, base_url = service_proxy_targets(name, dep)
if expose and (port or base_url):
pub_host = dep.public_host if dep.public else None
out.append((name, "proxy", base_url or f"localhost:{port}", bool(dep.public), pub_host))
out.append((name, "proxy", base_url or f"localhost:{port}", bool(dep.public), pub_host, True))
return out
# No config → route from the deployed registry snapshot.
for _kind, name, d in registry.all():
if not d.enabled:
continue
if d.static_root:
out.append((name, "static", d.static_root, d.public, d.public_host))
out.append((name, "static", d.static_root, d.public, d.public_host, d.spa))
elif d.subdomain and (d.port or d.base_url):
out.append((name, "proxy", d.base_url or f"localhost:{d.port}", d.public, d.public_host))
out.append((name, "proxy", d.base_url or f"localhost:{d.port}", d.public, d.public_host, True))
return out
@@ -146,8 +148,8 @@ def compute_routes(
# built dir; everything else that's exposed reverse-proxies its port/base_url.
# (Static frontends are `runner: static` services now — no separate program
# branch, so routing derives from one place.)
for name, kind, target, is_public, pub_host in _local_routes(config, registry):
routes.append(GatewayRoute(name, kind, target, name, node, is_public, pub_host))
for name, kind, target, is_public, pub_host, spa in _local_routes(config, registry):
routes.append(GatewayRoute(name, kind, target, name, node, is_public, pub_host, spa))
if remote_registries:
routes.extend(_remote_routes(config, registry, remote_registries))
@@ -229,21 +231,30 @@ def _host_remote_block(label: str, host: str, target: str) -> list[str]:
]
def _host_static_block(label: str, host: str, serve_dir: str) -> list[str]:
"""A host matcher that file-serves a frontend's dist (with SPA fallback)."""
def _static_serve_lines(serve_dir: str, spa: bool, indent: str) -> list[str]:
"""The `root`/`file_server` body for a static site. SPA sites get a fallback to
the root `index.html` (client-side routing); content sites (Hugo) get plain
`file_server`, which resolves directory indexes and 404s missing paths."""
lines = [f"{indent}root * {serve_dir}"]
if spa:
lines.append(indent + "try_files {path} /index.html")
lines.append(f"{indent}file_server")
return lines
def _host_static_block(label: str, host: str, serve_dir: str, spa: bool) -> list[str]:
"""A host matcher that file-serves a frontend's dist."""
matcher = f"@host_{label.replace('-', '_').replace('.', '_')}"
return [
f" {matcher} host {host}",
f" handle {matcher} {{",
f" root * {serve_dir}",
" try_files {path} /index.html",
" file_server",
*_static_serve_lines(serve_dir, spa, " "),
" }",
"",
]
def _public_site_block(host: str, kind: str, target: str) -> list[str]:
def _public_site_block(host: str, kind: str, target: str, spa: bool = True) -> list[str]:
"""A standalone Caddy site for a custom ``public_host`` (apex or another zone).
Unlike the ``*.<public_domain>`` wildcard site, an apex/foreign host isn't
@@ -251,11 +262,7 @@ def _public_site_block(host: str, kind: str, target: str) -> list[str]:
host's cert via the global ``acme_dns`` (DNS-01) — provided the gateway's
Cloudflare token can edit the host's zone."""
if kind == "static":
body = [
f" root * {target}",
" try_files {path} /index.html",
" file_server",
]
body = _static_serve_lines(target, spa, " ")
elif kind == "remote":
body = [
f" reverse_proxy {target} {{",
@@ -334,7 +341,7 @@ def generate_caddyfile_from_registry(
for r in routes:
host = f"{r.address}.{domain}"
if r.kind == "static":
lines += _host_static_block(r.name or r.address, host, r.target)
lines += _host_static_block(r.name or r.address, host, r.target, r.spa)
elif r.kind == "remote":
lines += _host_remote_block(r.name or r.address, host, r.target)
else:
@@ -359,7 +366,7 @@ def generate_caddyfile_from_registry(
host = f"{r.address}.{public_domain}"
label = f"{r.name or r.address}_pub"
if r.kind == "static":
lines += _host_static_block(label, host, r.target)
lines += _host_static_block(label, host, r.target, r.spa)
elif r.kind == "remote":
lines += _host_remote_block(label, host, r.target)
else:
@@ -368,7 +375,7 @@ def generate_caddyfile_from_registry(
lines.append("")
for r in custom_pub:
if r.public_host: # always true (custom_pub filter); narrows the type
lines += _public_site_block(r.public_host, r.kind, r.target)
lines += _public_site_block(r.public_host, r.kind, r.target, r.spa)
# Redirect the bare gateway port to the dashboard subdomain.
lines += [
f":{gw_port} {{",

View File

@@ -513,6 +513,13 @@ class CaddyDeployment(DeploymentBase):
manager: Literal["caddy"]
root: str = "dist"
# Serving strategy. `True` (default) → SPA fallback: any unmatched path serves
# the root `index.html` so a client-side router (React/Vite) takes over. `False`
# → content-site serving: the gateway resolves directory indexes (`/posts/` →
# `/posts/index.html`) and 404s genuinely-missing paths — correct for Hugo and
# other multi-page static sites, where the SPA fallback would swallow every
# in-site link back to the homepage.
spa: bool = True
# A static site is inherently served at its subdomain, so `reach` is
# `internal` or `public` (never `off`). `public` = also project via the tunnel.
reach: Reach = Reach.INTERNAL

View File

@@ -92,6 +92,9 @@ class Deployment:
# For `static` runner services: the absolute dir the gateway file_servers.
# Set → the route is `static` (file_server) rather than `proxy` (reverse_proxy).
static_root: str | None = None
# For `static` routes: SPA fallback (True, default) vs content-site serving
# (False, Hugo/multi-page). See CaddyDeployment.spa.
spa: bool = True
base_url: str | None = None
schedule: str | None = None
managed: bool = False
@@ -192,6 +195,7 @@ def load_registry(path: Path | None = None) -> NodeRegistry:
public_host=comp_data.get("public_host"),
tcp_port=comp_data.get("tcp_port"),
static_root=comp_data.get("static_root"),
spa=comp_data.get("spa", True),
base_url=comp_data.get("base_url"),
schedule=comp_data.get("schedule"),
managed=comp_data.get("managed", False),
@@ -273,6 +277,10 @@ def save_registry(registry: NodeRegistry, path: Path | None = None) -> None:
entry["tcp_port"] = comp.tcp_port
if comp.static_root:
entry["static_root"] = comp.static_root
# Only emit when non-default (content-site) — default-True omission keeps
# existing registries byte-identical and matches the load-side default.
if not comp.spa:
entry["spa"] = comp.spa
if comp.base_url:
entry["base_url"] = comp.base_url
if comp.schedule: