depends_on not applied for data source

[laurent-perrin]

Terraform Version

v0.10.2

Terraform Configuration Files

resource "openstack_compute_instance_v2" "db" {
  name = "db"
  image_name = "${var.image_name}"
  flavor_name = "${var.flavor_name}"
  security_groups = ["default"]
  key_pair = "${var.key_pair}"

  network {
    name = "${var.network_name}"
  }
}

data "template_file" "user_data_web" {
  depends_on = ["openstack_compute_instance_v2.db"]
  template = "${file("${path.module}/user-data-web.sh")}"

  vars {
    db_address = "${openstack_compute_instance_v2.db.network.0.fixed_ip_v4}"
  }
}

resource "openstack_compute_instance_v2" "web" {
  name = "web"
  image_name = "${var.image_name}"
  flavor_name = "${var.flavor_name}"
  security_groups = ["default"]
  key_pair = "${var.key_pair}"

  network {
    name = "${var.network_name}"
  }

  user_data = "${data.template_file.user_data_web.rendered}"
}

Expected Behavior

The instance "db" should be created before the data source template_file so the variable openstack_compute_instance_v2.db.network.0.fixed_ip_v4 could be used.

Actual Behavior

A terraform plan produces this error:

Error asking for user input: 1 error(s) occurred:

* Cycle: data.template_file.user_data_web, openstack_compute_instance_v2.web, openstack_compute_instance_v2.db

The data source seems to be created before the openstack_compute_instance_v2.db and the variable openstack_compute_instance_v2.db.network.0.fixed_ip_v4 is not yet created.

Steps to Reproduce

Please list the steps required to reproduce the issue, for example:

1. terraform plan

Important Factoids

No

References

Are there any other GitHub issues (open or closed) or Pull Requests that should be linked here? For example:

• depends_on for data_source #10603

[laurent-perrin]

I found the cause of my issue, there was dependencies between the security group for my web and db servers.

Sorry but this issue can be closed

[ghost]

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