Add placement docs for containers

src/content/changelog/containers/2026-04-05-regional-placement.mdx

@@ -3,7 +3,7 @@ title: Control where your Containers run with regional and jurisdictional placem
 description: Specify regions or jurisdictions to control where your containers run.
 products:
   - containers
-date: 2026-04-15
+date: 2026-04-05
 ---
 
 You can now specify placement constraints to control where your [Containers](/containers/) run.
@@ -15,4 +15,4 @@ You can now specify placement constraints to control where your [Containers](/co
 
 Use `regions` to limit placement to specific geographic areas. Use `jurisdiction` to restrict containers to compliance boundaries — `eu` maps to European regions (EEUR, WEUR) and `fedramp` maps to North American regions (ENAM, WNAM).
 
-Refer to [Containers architecture](/containers/platform-details/architecture/) for more details on placement.
+Refer to [Containers placement](/containers/platform-details/placement/) for more details.

src/content/docs/containers/platform-details/placement.mdx

@@ -0,0 +1,60 @@
+---
+pcx_content_type: concept
+title: Placement
+sidebar:
+  order: 2
+description: Control where your containers run with regional and jurisdictional constraints.
+---
+
+import { WranglerConfig } from "~/components";
+
+By default, containers run in the location nearest to the incoming request with a pre-fetched image. Use placement constraints to restrict where your containers run for data residency, compliance, or latency requirements.
+
+## Regional constraints
+
+Use the `regions` constraint to limit container placement to specific geographic areas:
+
+| Region | Description           | Notes            |
+| ------ | --------------------- | ---------------- |
+| `ENAM` | Eastern North America |                  |
+| `WNAM` | Western North America |                  |
+| `EEUR` | Eastern Europe        |                  |
+| `WEUR` | Western Europe        |                  |
+| `APAC` | Asia Pacific          |                  |
+| `SAM`  | South America         |                  |
+| `ME`   | Middle East           | Limited capacity |
+| `OC`   | Oceania               | Limited capacity |
+| `AFR`  | Africa                | Limited capacity |
+
+Limited capacity regions (ME, OC, AFR) cannot be used exclusively. Include at least one other region, or contact support for dedicated access.
+
+## Jurisdictional constraints
+
+Use the `jurisdiction` constraint to restrict containers to compliance boundaries:
+
+| Jurisdiction | Regions    | Use case           |
+| ------------ | ---------- | ------------------ |
+| `eu`         | EEUR, WEUR | EU data residency  |
+| `fedramp`    | ENAM, WNAM | FedRAMP regions    |
+
+When you specify both `jurisdiction` and `regions`, the regions must be valid for that jurisdiction. For example, specifying `jurisdiction: "eu"` with `regions: ["ENAM"]` is invalid.
+
+## Configure placement
+
+Set placement constraints in your Wrangler configuration:
+
+<WranglerConfig>
+
+```toml
+[[containers]]
+name = "my-container"
+image = "docker.io/my-org/my-image:latest"
+
+[containers.constraints]
+regions = ["ENAM", "WNAM"]
+jurisdiction = "fedramp"
+```
+
+</WranglerConfig>
+
+Refer to [Lifecycle of a Container](/containers/platform-details/architecture/) for more details on how placement affects container startup and routing.

src/content/docs/workers/wrangler/configuration.mdx

@@ -1330,6 +1330,15 @@ The following options are available:
 - `authorized_keys` <Type text="object[]" /> <MetaInfo text="optional" />
   - Public keys that should be added to the Container's `authorized_keys` file.
 
+- `constraints` <Type text="object" /> <MetaInfo text="optional" />
+  - Placement constraints for the container. Refer to [Containers placement](/containers/platform-details/placement/) for details.
+
+- `constraints.regions` <Type text="string[]" /> <MetaInfo text="optional" />
+  - Limit container placement to specific geographic regions. Valid values: `"ENAM"`, `"WNAM"`, `"EEUR"`, `"WEUR"`, `"APAC"`, `"SAM"`, `"ME"`, `"OC"`, `"AFR"`.
+
+- `constraints.jurisdiction` <Type text="string" /> <MetaInfo text="optional" />
+  - Restrict containers to compliance boundaries. Valid values: `"eu"`, `"fedramp"`.
+
 <WranglerConfig>
 
 ```jsonc
@@ -1343,6 +1352,10 @@ The following options are available:
 			"image_vars": {
 				"FOO": "BAR",
 			},
+			"constraints": {
+				"regions": ["ENAM", "WNAM"],
+				"jurisdiction": "fedramp",
+			},
 		},
 	],
 	"durable_objects": {