diff --git a/user_data.sh b/user_data.sh
new file mode 100644
index 0000000..12c46f8
--- /dev/null
+++ b/user_data.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+echo -e "\n${extra_key}" >> /home/ubuntu/.ssh/authorized_keys
+
+sudo apt update -y
+
+# Install EC2 Instance Connect
+sudo apt-get install -y ec2-instance-connect
+
+# Install Docker
+sudo apt-get -y install ca-certificates curl
+sudo install -y -m 0755 -d /etc/apt/keyrings
+sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
+sudo chmod a+r /etc/apt/keyrings/docker.asc
+echo \
+  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
+  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
+  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+
+sudo apt-get update
+sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
+
+# End Install Docker
+
+https://github.com/KopiCloud/terraform-aws-windows-ec2-instance.git