How to Import an Google Target TCP Proxy into Terraform

Import Google Target TCP Proxy with Terraback (recommended)

Terraback reverse-engineers your live infrastructure: it reads the Google Compute Engine resource with read-only credentials, generates the HCL, and produces the exact import block. Two commands take you from a live Google Target TCP Proxy to managed Terraform.

terraback scan all gcp --project my-gcp-project

terraback gcp import --method bulk

The Terraform import block

Terraback emits a Terraform 1.5+ import block like the one below. Because the block lives in your configuration, the import is reviewable in a pull request and repeatable across environments.

import {
  to = google_compute_target_tcp_proxy.main
  id = "projects/my-project/global/targetTcpProxies/my-tcp-proxy"
}

Example google_compute_target_tcp_proxy configuration

Here is a realistic Google Target TCP Proxy block. Terraback generates a fuller version from your actual resource attributes; this is a minimal, valid starting point.

resource "google_compute_target_tcp_proxy" "main" {
  name            = "my-tcp-proxy"
  backend_service = google_compute_backend_service.main.id
  proxy_header    = "NONE"
}

Gotchas when importing a Google Target TCP Proxy

• This is the global TCP proxy (global/targetTcpProxies in the import path); the regional variant is google_compute_region_target_tcp_proxy.
• backend_service must be a global google_compute_backend_service with protocol TCP or SSL and an EXTERNAL/EXTERNAL_MANAGED scheme.
• proxy_header defaults to NONE; only set PROXY_V1 when backends are configured to parse the PROXY protocol.
• A global forwarding rule must point at this proxy for it to receive traffic; that rule is a separate resource.

Doing it manually with terraform import

The native approach is to write the google_compute_target_tcp_proxy block by hand, then run terraform import google_compute_target_tcp_proxy.example <import-id> for every resource, one at a time. That works for a handful of resources, but it does not scale: you author all the HCL yourself and repeat the command for each item. Terraback generates the HCL and the import blocks for your whole account in one pass.

Import other Google Cloud resources