Added support for privileged mode

* (Feature) Support CodeBuild Privileged Mode

* Privileged mode enables running the Docker daemon inside a Docker container.

* (Chore) Add `codebuild_privileged_mode` usage to readme

Author: Stretch96

README.md

@@ -140,6 +140,12 @@ The following variables can be configured:
 - **Default**: `"buildspec.yml"` (at repository root)
 - **Conflicts with**: `codebuild_project`
 
+### `codebuild_privileged_mode`
+
+- **Description**: If set to true, enables running the Docker daemon inside a Docker container.
+- **Default**: false
+- **Conflicts with**: `codebuild_project`
+
 #### `codebuild_bucket`
 
 - **Description**: S3 bucket to store status badge and artifacts

main.tf

@@ -132,9 +132,10 @@ resource "aws_codebuild_project" "_" {
   }
 
   environment {
-    compute_type = "${var.codebuild_compute_type}"
-    type         = "LINUX_CONTAINER"
-    image        = "${var.codebuild_image}"
+    compute_type    = "${var.codebuild_compute_type}"
+    type            = "LINUX_CONTAINER"
+    image           = "${var.codebuild_image}"
+    privileged_mode = "${var.codebuild_privileged_mode}"
   }
 
   artifacts {

variables.tf

@@ -80,6 +80,12 @@ variable "codebuild_buildspec" {
   default     = ""
 }
 
+# var.codebuild_privileged_mode
+variable "codebuild_privileged_mode" {
+  description = "Enables running the Docker daemon inside a Docker container"
+  default     = "false"
+}
+
 # var.codebuild_bucket
 variable "codebuild_bucket" {
   description = "S3 bucket to store status badge and artifacts"