Deployment

Source: src/AWS/EKS/Deployment.ts

A replicated Kubernetes server on Amazon EKS — the Kubernetes analog of AWS.ECS.Service.

Deployment provisions a Kubernetes Deployment + Service (+ ServiceAccount) via server-side apply, a pod-identity IAM role + PodIdentityAssociation, and a container image from exactly one of three sources flat on props: main (bundle an inline Effect program), context (build your own Dockerfile), or image (a registry reference, mirrored into ECR). It accepts the same { env, policyStatements } host binding contract as AWS.Lambda.Function and AWS.ECS.Task: every AWS Binding.Service (S3, DynamoDB, SQS, …) attaches env vars to the pod spec and IAM policy statements to the pod-identity role, with credentials flowing through the EKS Pod Identity container-credentials chain.

Creating a Deployment

Remote image (external — no Effect runtime in the container)

const nginx = yield* AWS.EKS.Deployment("Nginx", {
  cluster,
  image: "nginx:1.27",
  namespace: "default",
  replicas: 3,
  port: 80,
  serviceType: "LoadBalancer",
});
nginx.url;            // LB URL, e.g. "http://k8s-….elb.amazonaws.com"
nginx.deploymentName; // K8s-native attrs

Build your own Dockerfile

const legacy = yield* AWS.EKS.Deployment("LegacyApp", {
  cluster,
  context: "./legacy",
  replicas: 2,
  port: 8080,
});

Effect Servers

Inline Effect server with a DynamoDB binding

const api = yield* AWS.EKS.Deployment(
  "Api",
  { cluster, main: import.meta.url, port: 3000, replicas: 2 },
  Effect.gen(function* () {
    const putItem = yield* AWS.DynamoDB.PutItem(table);
    return {
      fetch: Effect.gen(function* () {
        yield* putItem({ Item: { id: { S: "1" } } });
        return HttpServerResponse.text("ok");
      }),
    };
  }).pipe(Effect.provide(AWS.DynamoDB.PutItemHttp)),
);

Tagged Effect server

export class Api extends AWS.EKS.Deployment<Api, {
  health: () => Effect.Effect<string>;
}>()("Api") {}

export default Api.make(
  { cluster, main: import.meta.url, port: 3000 },
  Effect.gen(function* () {
    return {
      fetch: Effect.gen(function* () {
        return HttpServerResponse.text("ok");
      }),
      health: () => Effect.succeed("ok"),
    };
  }),
);

Kubernetes Escape Hatch

const tuned = yield* AWS.EKS.Deployment("Api", {
  cluster,
  main: import.meta.url,
  port: 3000,
  podTemplate: {
    spec: {
      tolerations: [{ key: "gpu", operator: "Exists" }],
      nodeSelector: { pool: "arm" },
    },
  },
});