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Backends define where Terraform’s state snapshots are stored. In tfts, you can configure backends within a Stack.

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Local Backend

Stores state on the local filesystem. 
import { Stack, LocalBackend } from "tfts";

const stack = new Stack(app, "my-stack", {
  backend: new LocalBackend({
    path: "terraform.tfstate",
    workspaceDir: "terraform.tfstate.d"
  })
});

​
S3 Backend

Stores state in an Amazon S3 bucket with optional locking via DynamoDB. 
import { Stack, S3Backend } from "tfts";

const stack = new Stack(app, "my-stack", {
  backend: new S3Backend({
    bucket: "my-terraform-state",
    key: "network/terraform.tfstate",
    region: "us-east-1",
    encrypt: true,
    dynamodbTable: "terraform-lock",
    profile: "my-aws-profile"
  })
});

​
GCS Backend

Stores state in Google Cloud Storage. 
import { Stack, GcsBackend } from "tfts";

const stack = new Stack(app, "my-stack", {
  backend: new GcsBackend({
    bucket: "my-terraform-state",
    prefix: "terraform/state",
    credentials: "path/to/service-account.json"
  })
});

​
Remote Backend

Used for Terraform Cloud or Terraform Enterprise with the remote backend block. 
import { Stack, RemoteBackend } from "tfts";

// Named workspace
const stack = new Stack(app, "my-stack", {
  backend: new RemoteBackend({
    organization: "my-org",
    workspaces: { name: "my-workspace" }
  })
});

// Prefixed workspaces
const stackWithPrefix = new Stack(app, "my-stack-prefixed", {
  backend: new RemoteBackend({
    organization: "my-org",
    workspaces: { prefix: "my-app-" }
  })
});

​
Cloud Backend

The modern way to configure Terraform Cloud integration. 
import { Stack, CloudBackend } from "tfts";

// Named workspace
const stack = new Stack(app, "my-stack", {
  backend: new CloudBackend({
    organization: "my-org",
    workspaces: { name: "my-workspace" }
  })
});

// Tagged workspaces
const stackWithTags = new Stack(app, "my-stack-tagged", {
  backend: new CloudBackend({
    organization: "my-org",
    workspaces: { tags: ["networking", "prod"] }
  })
});