Unable to provision with file multiple time - linux

Question

While trying to provision with file multiple times, second occurance is not being considered. Not sure if I'm doing it correctly.
Please throw some light !
The below block works perfectly -
source = "/home/ubuntu/Desktop/aws_migration_using_terraform/tcs-btag-account_us-east-2/aws_infra_automation"
destination = "/home/ubuntu"
}
However, this one didn't work and there is no error thrown by terraform itself !
source = "/home/ubuntu/Desktop/aws_migration_using_terraform/tcs-btag-account_us-east-2/livedevops"
destination = "/home/ubuntu"
}
The entire code is given below --
resource "tls_private_key" "bastion-key" {
algorithm = "RSA"
rsa_bits = 4096
}
resource "aws_key_pair" "generated_key" {
key_name = var.bastion_key
public_key = tls_private_key.bastion-key.public_key_openssh
}
resource "aws_instance" "bastion_host_us-east-2a" {
ami = var.bastion_ami_id
instance_type = var.bastion_ec2_instance_type
disable_api_termination = false
subnet_id = aws_subnet.devops_mig_pub_sub_01.id
vpc_security_group_ids = [aws_security_group.sg-btag-allow.id, aws_security_group.sg-ssh-allow.id]
associate_public_ip_address = true
availability_zone = aws_subnet.devops_mig_pub_sub_01.availability_zone
key_name = aws_key_pair.generated_key.id
connection {
type = "ssh"
host = self.public_ip
user = "ubuntu"
port = 22
private_key = tls_private_key.bastion-key.private_key_pem
timeout = "60s"
}
#Copying files from local to remote
provisioner "file" {
source = "/home/ubuntu/Desktop/aws_migration_using_terraform/tcs-btag-account_us-east-2/aws_infra_automation"
destination = "/home/ubuntu"
}
provisioner "file" {
source = "/home/ubuntu/Desktop/aws_migration_using_terraform/tcs-btag-account_us-east-2/livedevops"
destination = "/home/ubuntu"
}
user_data = <<-EOF
#!/bin/bash
sudo apt update -y
sudo apt install -y software-properties-common
sudo add-apt-repository --yes --update ppa:ansible/ansible
sudo apt update -y
sudo apt install -y ansible
/usr/bin/ansible --version > ansible-v.txt
echo "Installing the cloudwatch agent for Ubuntu Linux."
curl -O https://s3.amazonaws.com/amazoncloudwatch-agent/ubuntu/amd64/latest/amazon-cloudwatch-agent.deb
dpkg -i -E ./amazon-cloudwatch-agent.deb
EOF
tags = {
"Name" = "bastion_host"
}
}
output "private_key" {
value = tls_private_key.bastion-key.private_key_pem
sensitive = true
}
output "bastion_public_ip" {
value = aws_instance.bastion_host_us-east-2a.public_ip
}
output "bastion_private_ip" {
value = aws_instance.bastion_host_us-east-2a.private_ip
}
resource "aws_ebs_volume" "bastion_storage" {
availability_zone = var.bastion-ebs-availability-zone
size = 50
type = "gp2"
tags = {
"Name" = "bastion_ebs_volume"
}
}
resource "local_file" "bastion_private_key" {
content = tls_private_key.bastion-key.private_key_pem
filename = "bastion-key.pem"
file_permission = "0400"
}

Answer 1

I see ubuntu being the user used to SSH to target machine. It's a bad idea to copy files directly to HOME directory of the user & in this case the file provisioner is just replacing everything available on /home/ubuntu directory.
The above directory also contains your SSH public keys used for authentication in ~/.ssh/authorized_keys. That's the reason it's failing at the second file provisioner.
You create a tmp directory under /home/ubuntu or use /tmp or /var/tmp directories if they allow ubuntu user to write something to write.