feat(integrations): add railway Stripe catalog provider

crates/stackless-integrations/src/providers/mod.rs

@@ -1,18 +1,14 @@
 pub mod clerk;
 pub mod cloudflare;
+pub mod railway;
 
 #[cfg(test)]
 mod tests {
     use stackless_provider_sdk::CatalogResource;
     use stackless_provider_sdk::Hostable;
 
-    use crate::providers::cloudflare;
+    use crate::providers::{cloudflare, railway};
 
-    /// `Hostable::OUTPUTS` (the names referenceable as `${integrations.*.<out>}`)
-    /// must stay in lockstep with the names column of `OUTPUT_FIELDS` — the two
-    /// are co-located but hand-written, so this makes drift a test failure rather
-    /// than a silent validation bug. Bespoke providers (Clerk) aren't
-    /// `CatalogResource`, so they're out of scope here by construction.
     fn assert_outputs_match<T: CatalogResource>() {
         let fields: Vec<&str> = T::OUTPUT_FIELDS.iter().map(|(_, name, _)| *name).collect();
         let outputs: Vec<&str> = <T as Hostable>::OUTPUTS.to_vec();
@@ -34,5 +30,10 @@ mod tests {
         assert_outputs_match::<cloudflare::workers::CloudflareWorkers>();
         assert_outputs_match::<cloudflare::workers_ai::CloudflareWorkersAi>();
         assert_outputs_match::<cloudflare::browser_run::CloudflareBrowserRun>();
+        assert_outputs_match::<railway::bucket::RailwayBucket>();
+        assert_outputs_match::<railway::hosting::RailwayHosting>();
+        assert_outputs_match::<railway::mongo::RailwayMongo>();
+        assert_outputs_match::<railway::postgres::RailwayPostgres>();
+        assert_outputs_match::<railway::redis::RailwayRedis>();
     }
 }

crates/stackless-integrations/src/providers/railway/bucket.rs

@@ -0,0 +1,145 @@
+//! `railway/bucket` integration.
+
+use std::collections::BTreeMap;
+
+use serde::Serialize;
+use stackless_stripe_projects::catalog::verify::CatalogService;
+use stackless_stripe_projects::provision::ProvisionContext;
+
+use super::FamilyResource;
+use crate::error::IntegrationError;
+use crate::hostable::{ConfigScope, Hostable, IntegrationHosting};
+
+pub const RESOURCE_KIND: &str = "integration-railway-bucket";
+
+#[derive(Debug, Serialize)]
+pub struct RailwayBucketConfig {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub name: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub region: Option<String>,
+}
+
+impl CatalogService for RailwayBucketConfig {
+    const REFERENCE: &'static str = "railway/bucket";
+}
+
+#[derive(Debug)]
+pub struct RailwayBucket;
+
+impl Hostable for RailwayBucket {
+    const PROVIDER: &'static str = "railway-bucket";
+    const HOSTING: IntegrationHosting = IntegrationHosting::Managed;
+    const CONFIG_SCOPE: ConfigScope = ConfigScope::GlobalOnly;
+    const RESOURCE_KIND: &'static str = RESOURCE_KIND;
+    const OUTPUTS: &'static [&'static str] = &["bucket"];
+}
+
+impl FamilyResource for RailwayBucket {
+    type Config = RailwayBucketConfig;
+    const PROVIDER_PREFIX: &'static str = "RAILWAY";
+    // Provisional until pinned by `mise run discover railway/bucket`.
+    const OUTPUT_FIELDS: &'static [(&'static str, &'static str, bool)] =
+        &[("BUCKET", "bucket", true)];
+
+    fn build_config(ctx: &ProvisionContext<'_>) -> Result<RailwayBucketConfig, IntegrationError> {
+        let config = super::integration_config(ctx)?;
+        Ok(RailwayBucketConfig {
+            name: super::interp_optional(ctx, &config, "name")?,
+            region: super::interp_optional(ctx, &config, "region")?,
+        })
+    }
+}
+
+pub fn validate_config(
+    name: &str,
+    config: &BTreeMap<String, toml::Value>,
+) -> Result<(), IntegrationError> {
+    let _ = (name, config);
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::ProviderOps;
+    use crate::resource::ResourcePayload;
+    use stackless_core::def::StackDef;
+    use stackless_stripe_projects::stripe::StripeProjects;
+    use stackless_stripe_projects::test_support;
+
+    #[test]
+    fn config_matches_catalog() {
+        const FIXTURE: &str = include_str!(concat!(
+            env!("CARGO_MANIFEST_DIR"),
+            "/../stackless-stripe-projects/tests/fixtures/catalog.json"
+        ));
+        let catalog = stackless_stripe_projects::Catalog::from_json_envelope(FIXTURE).unwrap();
+        let failures = stackless_stripe_projects::verify_service(
+            &catalog,
+            &RailwayBucketConfig {
+                name: None,
+                region: None,
+            },
+        );
+        assert!(
+            failures.is_empty(),
+            "railway/bucket catalog gaps:\n{}",
+            failures.join("\n")
+        );
+    }
+
+    const CATALOG_ENVELOPE: &str = r##"{"ok":true,"command":"projects catalog","data":{"last_updated":"2026-07-11T00:00:00Z","services":[{"id":"prvsvc_bucket","object":"v2.provisioning.provider_service_detail","provider_id":"prvdr_railway","provider_name":"Railway","service_id":"bucket","categories":["database"],"kind":"deployable","scope":"project","availability":"available","development":false,"livemode":true,"pricing":{"type":"component"},"configuration_schema":{"properties":{"name":{"description":"Bucket name (auto-generated if omitted).","type":"string"},"region":{"description":"Storage region (e.g. sjc, iad, ams, sin).","type":"string"}},"type":"object"}}]}}"##;
+
+    fn test_def() -> StackDef {
+        StackDef::parse(
+            r#"
+[stack]
+name = "atto"
+[stack.projects.stripe]
+project = "project_1"
+[integrations.res]
+provider = "railway-bucket"
+[services.api]
+source = { repo = "r", ref = "main" }
+env = { OUT = "${integrations.res.bucket}" }
+health = { path = "/health" }
+[services.api.local]
+run = "true"
+"#,
+        )
+        .unwrap()
+    }
+
+    #[tokio::test]
+    async fn provision_records_outputs() {
+        let runner = test_support::provision_script(
+            CATALOG_ENVELOPE,
+            serde_json::json!({"RAILWAY_BUCKET": "val_bucket"}),
+            0,
+        );
+        let dir = tempfile::tempdir().unwrap();
+        std::fs::write(
+            dir.path().join("stackless.toml"),
+            "[stack]\nname=\"atto\"\n",
+        )
+        .unwrap();
+        let stripe = StripeProjects::new(&runner, dir.path());
+
+        let resource = RailwayBucket
+            .provision(
+                &stripe.as_dyn(),
+                &test_def(),
+                dir.path(),
+                "demo",
+                "res",
+                "local",
+                false,
+            )
+            .await
+            .unwrap();
+        assert_eq!(resource.resource_kind, "integration-railway-bucket");
+        let payload: ResourcePayload = serde_json::from_str(&resource.payload).unwrap();
+        assert_eq!(payload.outputs["bucket"], "val_bucket");
+    }
+}

crates/stackless-integrations/src/providers/railway/hosting.rs

@@ -0,0 +1,132 @@
+//! `railway/hosting` integration.
+
+use std::collections::BTreeMap;
+
+use serde::Serialize;
+use stackless_stripe_projects::catalog::verify::CatalogService;
+use stackless_stripe_projects::provision::ProvisionContext;
+
+use super::FamilyResource;
+use crate::error::IntegrationError;
+use crate::hostable::{ConfigScope, Hostable, IntegrationHosting};
+
+pub const RESOURCE_KIND: &str = "integration-railway-hosting";
+
+#[derive(Debug, Serialize)]
+pub struct RailwayHostingConfig {}
+
+impl CatalogService for RailwayHostingConfig {
+    const REFERENCE: &'static str = "railway/hosting";
+}
+
+#[derive(Debug)]
+pub struct RailwayHosting;
+
+impl Hostable for RailwayHosting {
+    const PROVIDER: &'static str = "railway-hosting";
+    const HOSTING: IntegrationHosting = IntegrationHosting::Managed;
+    const CONFIG_SCOPE: ConfigScope = ConfigScope::GlobalOnly;
+    const RESOURCE_KIND: &'static str = RESOURCE_KIND;
+    const OUTPUTS: &'static [&'static str] = &["project_id"];
+}
+
+impl FamilyResource for RailwayHosting {
+    type Config = RailwayHostingConfig;
+    const PROVIDER_PREFIX: &'static str = "RAILWAY";
+    // Provisional until pinned by `mise run discover railway/hosting`.
+    const OUTPUT_FIELDS: &'static [(&'static str, &'static str, bool)] =
+        &[("PROJECT_ID", "project_id", true)];
+
+    fn build_config(ctx: &ProvisionContext<'_>) -> Result<RailwayHostingConfig, IntegrationError> {
+        let _ = super::integration_config(ctx)?;
+        Ok(RailwayHostingConfig {})
+    }
+}
+
+pub fn validate_config(
+    name: &str,
+    config: &BTreeMap<String, toml::Value>,
+) -> Result<(), IntegrationError> {
+    let _ = (name, config);
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::ProviderOps;
+    use crate::resource::ResourcePayload;
+    use stackless_core::def::StackDef;
+    use stackless_stripe_projects::stripe::StripeProjects;
+    use stackless_stripe_projects::test_support;
+
+    #[test]
+    fn config_matches_catalog() {
+        const FIXTURE: &str = include_str!(concat!(
+            env!("CARGO_MANIFEST_DIR"),
+            "/../stackless-stripe-projects/tests/fixtures/catalog.json"
+        ));
+        let catalog = stackless_stripe_projects::Catalog::from_json_envelope(FIXTURE).unwrap();
+        let failures =
+            stackless_stripe_projects::verify_service(&catalog, &RailwayHostingConfig {});
+        assert!(
+            failures.is_empty(),
+            "railway/hosting catalog gaps:\n{}",
+            failures.join("\n")
+        );
+    }
+
+    const CATALOG_ENVELOPE: &str = r##"{"ok":true,"command":"projects catalog","data":{"last_updated":"2026-07-11T00:00:00Z","services":[{"id":"prvsvc_hosting","object":"v2.provisioning.provider_service_detail","provider_id":"prvdr_railway","provider_name":"Railway","service_id":"hosting","categories":["database"],"kind":"deployable","scope":"project","availability":"available","development":false,"livemode":true,"pricing":{"type":"component"},"configuration_schema":{"properties":{},"type":"object"}}]}}"##;
+
+    fn test_def() -> StackDef {
+        StackDef::parse(
+            r#"
+[stack]
+name = "atto"
+[stack.projects.stripe]
+project = "project_1"
+[integrations.res]
+provider = "railway-hosting"
+[services.api]
+source = { repo = "r", ref = "main" }
+env = { OUT = "${integrations.res.project_id}" }
+health = { path = "/health" }
+[services.api.local]
+run = "true"
+"#,
+        )
+        .unwrap()
+    }
+
+    #[tokio::test]
+    async fn provision_records_outputs() {
+        let runner = test_support::provision_script(
+            CATALOG_ENVELOPE,
+            serde_json::json!({"RAILWAY_PROJECT_ID": "val_project_id"}),
+            0,
+        );
+        let dir = tempfile::tempdir().unwrap();
+        std::fs::write(
+            dir.path().join("stackless.toml"),
+            "[stack]\nname=\"atto\"\n",
+        )
+        .unwrap();
+        let stripe = StripeProjects::new(&runner, dir.path());
+
+        let resource = RailwayHosting
+            .provision(
+                &stripe.as_dyn(),
+                &test_def(),
+                dir.path(),
+                "demo",
+                "res",
+                "local",
+                false,
+            )
+            .await
+            .unwrap();
+        assert_eq!(resource.resource_kind, "integration-railway-hosting");
+        let payload: ResourcePayload = serde_json::from_str(&resource.payload).unwrap();
+        assert_eq!(payload.outputs["project_id"], "val_project_id");
+    }
+}

crates/stackless-integrations/src/providers/railway/mod.rs

@@ -0,0 +1,15 @@
+//! Railway catalog resources via Stripe Projects.
+//!
+//! Output envelopes are provisional until pinned by `xtask discover`.
+
+pub mod bucket;
+pub mod hosting;
+pub mod mongo;
+pub mod postgres;
+pub mod redis;
+
+#[allow(unused_imports)]
+pub(crate) use crate::resource::{
+    CatalogResource as FamilyResource, bool_optional, bool_required, int_optional, int_required,
+    integration_config, interp_optional, interp_required,
+};