Add support for target_tcp_proxy (hashicorp#528)

docs/r/compute_target_tcp_proxy.html.markdown

@@ -0,0 +1,72 @@
+---
+layout: "google"
+page_title: "Google: google_compute_target_tcp_proxy"
+sidebar_current: "docs-google-compute-target-tcp-proxy"
+description: |-
+  Creates a Target TCP Proxy resource in GCE.
+---
+
+# google\_compute\_target\_tcp\_proxy
+
+Creates a target TCP proxy resource in GCE. For more information see
+[the official
+documentation](https://cloud.google.com/compute/docs/load-balancing/tcp-ssl/tcp-proxy) and
+[API](https://cloud.google.com/compute/docs/reference/latest/targetTcpProxies).
+
+
+## Example Usage
+
+```hcl
+resource "google_compute_target_tcp_proxy" "default" {
+  name = "test"
+  description = "test"
+  backend_service = "${google_compute_backend_service.default.self_link}"
+}
+
+resource "google_compute_backend_service" "default" {
+  name        = "default-backend"
+  protocol    = "TCP"
+  timeout_sec = 10
+
+  health_checks = ["${google_compute_health_check.default.self_link}"]
+}
+
+resource "google_compute_health_check" "default" {
+  name = "default"
+  timeout_sec        = 1
+  check_interval_sec = 1
+
+  tcp_health_check {
+    port = "443"
+  }
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `name` - (Required) A unique name for the resource, required by GCE. Changing
+    this forces a new resource to be created.
+
+* `backend_service` - (Required) The URL of a Backend Service resource to receive the matched traffic.
+
+* `proxy_header` - (Optional) Type of proxy header to append before sending
+    data to the backend, either NONE or PROXY_V1 (default NONE).
+
+- - -
+
+* `description` - (Optional) A description of this resource. Changing this
+    forces a new resource to be created.
+
+* `project` - (Optional) The project in which the resource belongs. If it
+    is not provided, the provider project is used.
+
+## Attributes Reference
+
+In addition to the arguments listed above, the following computed attributes are
+exported:
+
+* `proxy_id` - A unique ID assigned by GCE.
+
+* `self_link` - The URI of the created resource.

google.erb

@@ -226,6 +226,10 @@
       <a href="/docs/providers/google/r/compute_target_https_proxy.html">google_compute_target_https_proxy</a>
       </li>
 
+      <li<%= sidebar_current("docs-google-compute-target-tcp-proxy") %>>
+      <a href="/docs/providers/google/r/compute_target_tcp_proxy.html">google_compute_target_tcp_proxy</a>
+      </li>
+
       <li<%= sidebar_current("docs-google-compute-target-pool") %>>
       <a href="/docs/providers/google/r/compute_target_pool.html">google_compute_target_pool</a>
       </li>