Placement

Last updated Oct 1, 2026 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
us ENAM, WNAM US 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:

{
  "$schema": "./node_modules/wrangler/config-schema.json",
  "containers": [
    {
      "name": "my-container",
      "image": "docker.io/my-org/my-image:latest",
      "constraints": {
        "regions": [
          "ENAM",
          "WNAM"
        ],
        "jurisdiction": "fedramp"
      }
    }
  ]
}

[[containers]]
name = "my-container"
image = "docker.io/my-org/my-image:latest"

[containers.constraints]
regions = ["ENAM", "WNAM"]
jurisdiction = "fedramp"

Refer to Lifecycle of a Container for more details on how placement affects container startup and routing.

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