Terraform provider for libvirt

Using libvirt as a terraform provider

I’ve gotten comfortable with terraform using the openstack provider to build infrastructure. At home, I don’t have openstack, but I do have libvirt. The terraform-provider-libvirt plugin allows terraform to talk directly with libvirt to manage new resources. The main problem I faced with this setup is I don’t know go at all, so installing the plugin was a bit of a chore. The instructions below are the first thing that worked and might not be correct.

Terraform

Terraform is distributed as a single binary so installation is as simple as downloading the package, unzipping it, and copying the binary to (e.g.) /usr/local/bin/terraform.

  $ wget https://releases.hashicorp.com/terraform/0.11.7/terraform_0.11.7_linux_amd64.zip
  $ unzip terraform_0.11.7_linux_amd64.zip
  $ mv terraform /usr/local/bin/terraform

GO

The libvirt plugin README.md warns that it depends on recent features of go, so I installed the latest stable version 1.10.3 as follows

  $ wget https://dl.google.com/go/go1.10.3.linux-amd64.tar.gz
  $ tar -zxvf go1.10.3.linux-amd64.tar.gz
  $ sudo mv go /usr/local
  $ vi ~/.bashrc
    GOROOT=/usr/local/go
    GOPATH=${HOME}/go
    PATH=${GOROOT}/bin:${GOPATH}/bin:$PATH
    export GOROOT GOPATH PATH
  $ source ~/.bashrc
  $ mkdir ~/go
  $ go version
  go version go1.10.3 linux/amd64

terraform-libvirt-plugin

The libvirt plugin depends on terraform-providers

  $ go get github.com/hashicorp/terraform/plugin
  $ go install github.com/hashicorp/terraform/plugin

  $ yum insall libvirt-devel
  $ mkdir -p ~/.terraform.d/plugins
  $ cd ~/.terraform.d/plugins
  $ go get -v -u github.com/dmacvicar/terraform-provider-libvirt
  $ go build -a -v github.com/dmacvicar/terraform-provider-libvirt

Testing

With the plugin installed, I was able to create resources with terraform+libvirt

  $ mkdir ~/test-tf
  $ cd ~/test-tf
  $ vi libvirt.tf
provider "libvirt" {
        uri = "qemu:///system"
}

resource "libvirt_domain" "terraform_test" {
      name = "terraform_test"
}

  $ terraform init
  $ terraform plan
  $ terraform apply
  $ terraform destroy