docs(GCP README) Updates GCP docs for both Org and Project integration

Signed-off-by: Scott Ford <scott.ford@lacework.net>

gcp/README.md

@@ -10,20 +10,63 @@ configuration assessment, as well as GCP Audit Trail analysis.
   - **PROJECT OWNER** (for project level integration)
 - [Lacework API Key](https://support.lacework.com/hc/en-us/articles/360011403853-Generate-API-Access-Keys-and-Tokens) 
 
-## Step-By-Step
+## Organziation Integration
+The following section covers how to use Terraform to integrate GCP configuration assessment and Audit Trail for an entire GCP Org
+
+### Setup GCP Service Account
+In order to integrate Lacework with a GCP Organization you will need to first create a GCP service account with the the following permissions:
+- Organziation Admin
+- Logs Configuration Writer
+
+Download the service account `json` file to your workstation and move on to the next section
+
+More information on GCP sevice accounts can be found [here](https://cloud.google.com/iam/docs/service-accounts)
+
+### Run Terraform
 1. Clone this repository: https://github.com/lacework/terraform-provisioning
-2. Download the compiled Lacework Terraform Provider for the platform you are running and place it at `~/.terraform.d/plugins/terraform-provider-lacework`
+2. Change directories into `terraform-provisioning/gcp`
+3. Create a new file called `terraform.tfvars` with the following content:
 
-| Platform | 64-bit  |  32-bit  |
-|---|---|---|
-| MacOS (Darwing) | [`amd64`](https://techally-content.s3-us-west-1.amazonaws.com/terraform-provider-lacework/terraform-provider-lacework-darwin-amd64) | [`i386`](https://techally-content.s3-us-west-1.amazonaws.com/terraform-provider-lacework/terraform-provider-lacework-darwin-386)|
-| Linux | [`amd64`](https://techally-content.s3-us-west-1.amazonaws.com/terraform-provider-lacework/terraform-provider-lacework-linux-amd64) | [`i386`](https://techally-content.s3-us-west-1.amazonaws.com/terraform-provider-lacework/terraform-provider-lacework-linux-386)|
-| Windows | [`amd64`](https://techally-content.s3-us-west-1.amazonaws.com/terraform-provider-lacework/terraform-provider-lacework-windows-amd64.exe)| [`i386`](https://techally-content.s3-us-west-1.amazonaws.com/terraform-provider-lacework/terraform-provider-lacework-windows-386.exe)|
+```
+credentials_file    = "<PATH TO GCP CREDENTIAL JSON FILE>"
+org_integration     = true
+organization_id     = "<GCP_ORG_ID>"
+project_id          = "<GCP_PROJECT_ID>"
+prefix              = "<name you want prefixed to resources provisioned>"
+audit_log           = true
+lacework_account    = "<YOUR LACEWORK ACCOUNT>"
+lacework_api_key    = "<THE API KEY FROM LACEWORK JSON FILE>"
+lacework_api_secret = "<THE API SECRET FROM LACEWORK JSON FILE>"
+lacework_integration_config_name   = "<NAME FOR THIS INTEGRATION>"
+lacework_integration_auditlog_name = "<NAME FOR THIS INTEGRATION>"
+```
+or use environment variables to avoid hardcoding API keys and secrets.
 
-_NOTE: This is a temporary step until HashiCorp has released the Lacework Terraform Provider_
+```
+export TF_VAR_lacework_api_key=<THE API KEY FROM LACEWORK JSON FILE>
+export TF_VAR_lacework_api_secret=<THE API SECRET FROM LACEWORK JSON FILE>
+```
+
+5. Run `terraform init`
+6. Run `terraform apply`
 
-3. Change directories into `terraform-provisioning/gcp`
-4. Create a new file called `terraform.tfvars` with the following content:
+More information on adding GCP credentials for Terraform can be found [here](https://www.terraform.io/docs/providers/google/guides/getting_started.html#adding-credentials)
+
+## GCP Project Integration
+The following section covers how to use Terraform to integrate GCP configuration assessment and Audit Trail on a per project basis. 
+
+### Setup GCP Service Account
+In order to integrate Lacework with a GCP Organization you will need to first create a GCP service account with the the following permissions:
+- Project Admin
+
+Download the service account `json` file to your workstation and move on to the next section
+
+More information on GCP sevice accounts can be found [here](https://cloud.google.com/iam/docs/service-accounts)
+
+### Run Terraform
+1. Clone this repository: https://github.com/lacework/terraform-provisioning
+2. Change directories into `terraform-provisioning/gcp`
+3. Create a new file called `terraform.tfvars` with the following content:
 
 ```
 credentials_file    = "<PATH TO GCP CREDENTIAL JSON FILE>"