Terraform remote-exec variable passing

Question

I am looking to pass variables to a script on a new created aws_instance, but I'm not sure how. Here is what I have:

provisioner "file" {
    source      = "${path.module}/scripts/slave-provisioner.sh"
    destination = "/tmp/slave-provisioner.sh"
}

provisioner "remote-exec" {
    inline = [
        "chmod +x /tmp/slave-provisioner.sh",
        "sudo /tmp/slave-provisioner.sh ${split(",",var.zookeeper_ips_list)}"
    ]
}

I have verified that the zookeeper_ips_list has the correct list of IPs.

There error that I get via terraform apply is:

 /tmp/terraform_939984059.sh: 5: /tmp/terraform_939984059.sh: 10.239.12.181: not found

So basically I want to create this machine and then kick of my provisioner script that gets passed a list of IPs so it can do it's configuration.

This looks pretty odd to me as you are taking a comma separated string and turning it into an array which you then pass to your provisioner script. I'm not 100% sure what the expected behaviour actually is for that as I'd expect it to want you to pass it as a string. Are you really meaning to do that? Or would you be better off replacing the commas with spaces (using replace())? — ydaetskcoR
We are passing those IP addresses into a bash script that just updates the zookeeper configuration for our cluster. The problem was solved with just some bash formatting. — David Ficociello

BMW BMW · Accepted Answer · 2016-06-28T03:11:20

Hope you run terraform with latest version.

Seems terraform gets the value of variable var.zookeeper_ips_list, but the double quotes in double quotes makes the trouble. You may try to escape them by \, I didn't try the code, please let me know the result

"sudo /tmp/slave-provisioner.sh ${split(\",\",var.zookeeper_ips_list)}"

And you can take it out, let me know the result as well.

zookeeper_ips_list = ${split(",",var.zookeeper_ips_list)}

provisioner "remote-exec" {
    inline = [
        "chmod +x /tmp/slave-provisioner.sh",
        "sudo /tmp/slave-provisioner.sh ${zookeeper_ips_list)}"
    ]

Terraform remote-exec variable passing

2 Answers