Feature/packer jenkins (#31)

* packer jenkins update

jenkins-packer-demo/instance.tf

@@ -1,5 +1,21 @@
+data "aws_ami" "ubuntu" {
+  most_recent = true
+
+  filter {
+    name   = "name"
+    values = ["ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-*"]
+  }
+
+  filter {
+    name   = "virtualization-type"
+    values = ["hvm"]
+  }
+
+  owners = ["099720109477"] # Canonical
+}
+
 resource "aws_instance" "jenkins-instance" {
-  ami           = var.AMIS[var.AWS_REGION]
+  ami           = data.aws_ami.ubuntu.id
   instance_type = "t2.small"
 
   # the VPC subnet
@@ -13,6 +29,9 @@ resource "aws_instance" "jenkins-instance" {
 
   # user data
   user_data = data.template_cloudinit_config.cloudinit-jenkins.rendered
+
+  # iam instance profile
+  iam_instance_profile = aws_iam_instance_profile.jenkins-role.name
 }
 
 resource "aws_ebs_volume" "jenkins-data" {