SiteConfig schema
SiteConfig is the site-scoped, mutable config tier: domains, transport
security, visitor access control, handler caps, compression, and the gateway. It
is stored as JSON in the KV (not in a deployment manifest), so it changes
independently of content and does not roll back with a deployment. Most of it is
managed through subcommands rather than edited by hand.
The tiers, contrasted:
Routing (project.cfg) | SiteConfig (KV) | |
|---|---|---|
| Scope | One deployment | The whole site |
| Lifecycle | Immutable, rolls back with content | Mutable, independent |
| Edited via | project.cfg + sync | boatramp domain / access / gateway / API |
Top-level fields
| Field | Type | Default | Managed by |
|---|---|---|---|
version | u32 | 1 | — (pinned at 1) |
domains | DomainConfig | empty | boatramp domain |
security | SecurityConfig | off | API / transport security |
access | AccessConfig | open | boatramp access |
handlers | HandlersSiteConfig? | None (disabled) | handler caps |
compression | CompressionConfig | off | boatramp compression |
gateway | GatewayConfig? | None | boatramp gateway |
domains
The hostnames a site answers to (virtualhost routing). See Serve a custom domain.
| Field | Type | Default | Description |
|---|---|---|---|
primary | string? | — | Canonical hostname (example.com). |
aliases | list<string> | [] | Additional exact hostnames (www.example.com). |
wildcards | list<string> | [] | Wildcard patterns (*.example.com), matched by suffix at any depth. |
canonical_redirect | bool | false | 301 exact-alias hosts to primary (apex↔www). Wildcard hosts serve as-is. |
security
Site-tier transport security. Off by default; opt in once TLS is in front
(directly or via a terminating proxy). The effective scheme is read from
X-Forwarded-Proto behind a trusted proxy. See
Harden the security posture.
| Field | Type | Default | Description |
|---|---|---|---|
https_redirect | bool | false | 301 plain-HTTP requests to HTTPS. |
hsts | Hsts? | — | Send Strict-Transport-Security on HTTPS responses. |
csp | string? | — | Content-Security-Policy header value (opt-in; no safe default for static sites). |
frame_options | string? | — | X-Frame-Options value (DENY, SAMEORIGIN). |
hsts
| Field | Type | Default | Description |
|---|---|---|---|
max_age | u64 | 31536000 | max-age in seconds (one year). |
include_subdomains | bool | true | Apply to subdomains. |
preload | bool | false | Request browser-preload-list inclusion (hard to undo — explicit opt-in). |
access
Visitor access control — WAF, IP rules, rate limiting, basic auth, trusted-proxy
handling. This is the full mechanism for restricting who may view a site; it is
separate from control-plane RBAC. Managed with boatramp access and
documented in Restrict visitor access.
handlers
Site-scoped handler policy: the capability allowlist and resource caps a
deployment’s requested handler config is intersected
against at activation (deny by default). None disables handlers for the site
entirely.
| Field | Type | Default | Description |
|---|---|---|---|
enabled | bool | false | Whether handlers run for this site at all. |
allow_imports | list<string> | [] | Interfaces handlers on this site may import (subset of the import vocabulary). |
max_memory_mb | u32? | — | Cap on per-handler memory (MiB). |
max_timeout_ms | u32? | — | Cap on per-handler wall-clock timeout (ms). |
max_concurrency | u32? | — | Cap on concurrent invocations for the site. |
max_fuel | u64? | — | Cap on per-handler CPU fuel; a handler’s own fuel may only lower it. |
secrets | map<string, string> | {} | Env-var name → secret reference (a host env-var name, resolved server-side — never a literal secret). |
background_aliases | list<string> | [] | Named aliases (besides current) whose deployments also run consumers and crons. See Run background work. |
max_stream_connections | u32? | — | Cap on concurrent SSE/WebSocket connections for the site. |
max_log_rate | u32? | — | Cap on captured guest log lines per second (over-cap lines are dropped, counted). |
disable_log_capture | bool | false | Opt out of capturing guest stdout/stderr + wasi:logging. Capture is on by default (logs endpoint + SSE tail + serve.log mirror); set true to discard it, e.g. when guest output may carry secrets/PII. |
cache | HandlerCacheConfig? | None (off) | Edge response cache. |
graphql | HandlerGraphqlConfig? | None (off) | GraphQL edge features. |
cookie_auth | CookieAuthConfig? | None (off) | Browser cookie session auth. |
A handler that requests an import not in allow_imports, or exceeds a cap, is
rejected at activation — not at request time. See
Handler host bindings.
handlers.cache
Host-level response cache: a cacheable GET/HEAD response is served for a
later identical request without re-instantiating the handler. Opt-in per
response, driven by the handler’s own Cache-Control; never caches a private
response (no-store/private/no-cache, a Set-Cookie, Vary: *, or an
Authorization request without public/s-maxage). Entries are keyed by the
request’s project-qualified scope, honor Vary, and expire by TTL. Backed by the
site’s KV store. See Cache handler responses.
| Field | Type | Default | Description |
|---|---|---|---|
enabled | bool | false | Master switch; inert even if present when false. |
max_entry_bytes | u64? | 262144 (256 KiB) | Largest cacheable entry (status+headers+body); a bigger response streams through uncached. |
max_ttl_secs | u64? | 3600 | Upper bound on a stored entry’s TTL, clamping an over-long max-age. |
handlers.graphql
GraphQL edge features. Off unless present + enabled. See
Serve a GraphQL API.
| Field | Type | Default | Description |
|---|---|---|---|
enabled | bool | false | Master switch for the GraphQL edge. |
max_depth | u32? | server default | Deepest allowed selection nesting (fragments expanded). |
max_complexity | u32? | server default | Largest allowed total field count (schema-free cost proxy). |
introspection | bool? | posture default | Allow schema-introspection queries (off under the multi-tenant posture). |
persisted_queries | bool | false | Resolve a query hash to the stored query (bandwidth + parse saving). |
safelist | bool | false | Only pre-registered query hashes run (a query allowlist); implies and is stronger than persisted_queries. |
federated | bool | false | This site is a supergraph gateway: plan a query against the project’s registered subgraphs and dispatch fetches to them. |
graphiql | bool | false | Serve the in-browser GraphiQL explorer to a browser GET. |
data | HandlerGraphqlDataConfig? | None | Declarative data connector: generate the API from a managed database (queries compiled to SQL). Deny-by-default exposure; a claims_from_token block can bind a claim from a verified application bearer for multi-tenant row isolation. |
handlers.cookie_auth
Browser cookie session auth. Off unless present. A request carrying the named
cookie but no Authorization header is authenticated from the cookie value —
boatramp injects it as the app bearer everywhere the header bearer flows (the
Authorization header always wins). boatramp only reads the cookie; the app
sets, refreshes, and verifies it. Set the cookie HttpOnly; Secure; SameSite=Lax
with a __Host- prefix. See
Authenticate a browser with a session cookie.
| Field | Type | Default | Description |
|---|---|---|---|
cookie_name | string | — | The cookie whose value becomes the bearer when no Authorization header is present. |
allowed_origins | list<string> | [] | Additional cross-origin CSRF allowlist. Same-origin (request Origin/Referer authority == own Host) always passes, so [] ⇒ same-origin only — no config for the usual SPA. List the extra origins a browser app on a different origin than this API may use; a cross-origin request that’s neither same-origin nor listed is rejected 403. Each entry is a scheme://host[:port] origin. |
compression
On-the-fly response compression. Opt-in, and complementary to serving a
precompressed variant. A response is compressed only when it has no precompressed
variant or existing Content-Encoding, its type is compressible, and (when the
length is known) it is at least min_size. Credentialed responses are skipped
for BREACH safety. See Compress responses.
| Field | Type | Default | Description |
|---|---|---|---|
enabled | bool | false | Master toggle. |
min_size | u64 | 1024 | Don’t compress a response with a Content-Length below this (bytes). Streaming responses with no declared length are always eligible. |
gateway
Reverse-proxy gateway for publishing private services. None means no gateway
routes. Declaring an upstream here is what authorizes reaching a private address
— the SSRF guard stays public-only otherwise. Fields
cover upstream pools, load balancing, and health checking; see
Expose a private service through the gateway.