added packer and build script

infra/custom_ami/packer/.gitignore

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+manifest-*.json
+manifest-*.json.lock

infra/custom_ami/packer/catherine-fc.json

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+{
+	"variables": {
+		"vpc": "{{env `BUILD_VPC_ID`}}",
+		"subnet": "{{env `BUILD_SUBNET_ID`}}",
+		"PROFILE": "{{env `AWS_PROFILE`}}",
+		"STAGE": "{{env `STAGE`}}",
+		"AMI_BASENAME": "{{env `AMI_BASENAME`}}"
+	},
+	"builders": [
+		{
+			"type": "amazon-ebs",
+			"name": "Custom AMI builder",
+			"region": "ap-northeast-1",
+      "source_ami": "ami-0cc75a8978fbbc969",
+			"instance_type": "t3.small",
+			"ssh_username": "ec2-user",
+			"ami_name": "{{user `AMI_BASENAME`}}-{{user `STAGE`}}-{{timestamp}}",
+			"tags": {
+				"Name": "{{user `AMI_BASENAME`}}-{{user `STAGE`}}",
+				"Base_AMI_ID": "{{ .SourceAMI }}",
+				"Base_AMI_NAME": "{{ .SourceAMIName }}",
+                "PROJECT": "CATHERINE_FC"
+			},
+			"run_tags": {
+				"Name": "{{user `AMI_BASENAME`}}-{{user `STAGE`}}-packer",
+				"PROJECT": "CATHERINE_FC"
+			},
+			"run_volume_tags": {
+				"Name": "{{user `AMI_BASENAME`}}-{{user `STAGE`}}-packer",
+				"PROJECT": "CATHERINE_FC"
+			},
+			"ami_description": "Amazon Linux 2 with NodeJS",
+			"vpc_id": "{{user `vpc`}}",
+			"subnet_id": "{{user `subnet`}}"
+		}
+	],
+	"provisioners": [
+		{
+			"type": "shell",
+			"inline": [
+				"sudo yum update",
+				"sudo yum -y install unzip",
+				"sudo yum -y install nano",
+				"sudo yum -y install dos2unix",
+				"wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash",
+				". ~/.nvm/nvm.sh",
+				"nvm install 12"
+			]
+		},
+		{
+			"type": "file",
+			"source": "../platform-uploads",
+			"destination": "/tmp"
+		},
+		{
+			"type": "shell",
+			"inline": [
+				"sudo chown -R root:root /tmp/platform-uploads",
+				"sudo dos2unix /tmp/platform-uploads/opt/web-init/web-init.sh",
+				"sudo cp -rf /tmp/platform-uploads/etc/* /etc/",
+				"sudo cp -rf /tmp/platform-uploads/opt/* /opt/",
+				"sudo systemctl enable web-init",
+				"sudo rm -rf /tmp/platform-uploads"
+			]
+		}
+	]
+}

infra/custom_ami/packer/vars/prod/vars.json

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+{
+	"vpc": "vpc-c54553a2",
+	"subnet": "subnet-0d0fdf45",
+	"STAGE": "prod",
+	"AMI_BASENAME": "catherine-fc"
+}