diff --git a/.github/workflows/terraform-ci.yml b/.github/workflows/terraform-ci.yml
new file mode 100644
index 00000000..04c90d4b
--- /dev/null
+++ b/.github/workflows/terraform-ci.yml
@@ -0,0 +1,64 @@
+name: 'Terraform-ci'
+
+on: [push, pull_request]
+
+defaults:
+  run:
+    shell: sh
+
+jobs:
+  # Terraform validate configuration
+  terraform-validate:
+    name: 'Terraform-validate'
+    runs-on: ubuntu-latest
+    container:
+      image: hashicorp/terraform:0.14.6
+      env:
+        PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Terraform Init l1
+      working-directory: ./terraform/layer1-aws
+      run: terraform init -backend=false
+    - name: Terraform Init l2
+      working-directory: ./terraform/layer2-k8s
+      run: terraform init -backend=false
+    - name: Terraform Validate l1
+      working-directory: ./terraform/layer1-aws
+      run: terraform validate -no-color .
+    - name: Terraform Validate l2
+      working-directory: ./terraform/layer2-k8s
+      run: terraform validate -no-color .
+
+  # Checks that all Terraform configuration files format
+  terraform-format:
+    name: 'Terraform-format'
+    runs-on: ubuntu-latest
+    container:
+      image: hashicorp/terraform:0.14.6
+      env:
+        PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Terraform Format
+      run: terraform fmt -recursive -write=false -check .
+
+  # Checks that all Terraform configuration files tflint
+  terraform-tflint:
+    name: 'Terraform-tflint'
+    runs-on: ubuntu-latest
+    container:
+      image: wata727/tflint
+      env:
+        PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Terraform tflint l1
+      working-directory: ./terraform/layer1-aws
+      run: tflint --no-color
+    - name: Terraform tflint l2
+      working-directory: ./terraform/layer2-k8s
+      run: tflint --no-color
diff --git a/terraform/modules/aws-ec2-pritunl/efs.tf b/terraform/modules/aws-ec2-pritunl/efs.tf
index 2242148b..3f0a9f87 100644
--- a/terraform/modules/aws-ec2-pritunl/efs.tf
+++ b/terraform/modules/aws-ec2-pritunl/efs.tf
@@ -7,8 +7,8 @@ resource "aws_efs_file_system" "this" {
   kms_key_id     = var.kms_key_id
 
   tags = {
-      "Name" = var.name
-    }
+    "Name" = var.name
+  }
   lifecycle {
     ignore_changes = [
       tags,
@@ -17,7 +17,7 @@ resource "aws_efs_file_system" "this" {
 }
 
 resource "aws_efs_mount_target" "this" {
-  count = length(var.public_subnets)
+  count          = length(var.public_subnets)
   file_system_id = aws_efs_file_system.this.id
   subnet_id      = var.public_subnets[count.index]
   security_groups = [