diff --git a/sysadmin/grid5000/cassandra/terraform/create_environment.sh b/sysadmin/grid5000/cassandra/terraform/create_environment.sh
new file mode 100644
index 0000000..38d2525
--- /dev/null
+++ b/sysadmin/grid5000/cassandra/terraform/create_environment.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+echo "*********** Preparing environment"
+# TODO install terraform if not present
+
+python3 -m venv ~/.venv
+source ~/.venv/bin/activate
+pip install ansible
+
+echo "*********** Reserve and initialize nodes"
+terraform apply
+
+# TODO status check
+
+echo "*********** Terraform output"
+terraform output --json | jq '' | tee > environment.json
diff --git a/sysadmin/grid5000/cassandra/terraform/local/terraform.tf b/sysadmin/grid5000/cassandra/terraform/local/terraform.tf
new file mode 100644
index 0000000..5457f4f
--- /dev/null
+++ b/sysadmin/grid5000/cassandra/terraform/local/terraform.tf
@@ -0,0 +1,13 @@
+terraform {
+ required_version = ">= 0.13"
+  required_providers {
+    libvirt = {
+      source  = "multani/libvirt"
+      version = "0.6.3-1+4"
+    }
+  }
+}
+
+provider "libvirt" {
+  uri = "qemu:///system"
+}
diff --git a/sysadmin/grid5000/cassandra/terraform/main.tf b/sysadmin/grid5000/cassandra/terraform/main.tf
index 1022512..ba3f65b 100644
--- a/sysadmin/grid5000/cassandra/terraform/main.tf
+++ b/sysadmin/grid5000/cassandra/terraform/main.tf
@@ -1,23 +1,67 @@
 provider "grid5000" {
   # Uses Restfully credentials
   restfully_file = pathexpand("~/.grid5000.yml")
 }
 
+resource "grid5000_job" "reservation" {
+  name      = "swh"
+  site      = var.site
+  command   = "sleep ${var.sleep_time}"
+  resources = "{(type='disk' or type='default') AND cluster='${var.cluster}'}/nodes=${var.total_node_count},walltime=${var.walltime}"
+  types     = ["cosystem", "container"]
+}
+
 resource "grid5000_job" "cassandra" {
-  name      = "terraform"
-  site      = "lille"
-  command   = "sleep 1h"
-  resources = "{\"cluster\"='chifflet'}/nodes=2,walltime=0:10:00"
-  types     = ["deploy"]
+  name      = "swh"
+  site      = var.site
+  command   = "sleep ${var.sleep_time}"
+  resources = "/nodes=${var.cassandra_node_count},walltime=${var.cassandra_walltime}"
+  types     = ["inner=${grid5000_job.reservation.id}", "deploy"]
 }
 
-resource "grid5000_deployment" "my_deployment" {
+resource "grid5000_deployment" "cassandra_deployment" {
   site        = grid5000_job.cassandra.site
   environment = "debian10-x64-base"
   nodes       = grid5000_job.cassandra.assigned_nodes
-  key         = file("~/.ssh/id_rsa.pub")
+  key         = file("~/.ssh/grid5000.pub")
+}
+
+resource "null_resource" "cassandra_install" {
+  depends_on = [grid5000_deployment.cassandra_deployment]
+
+  count = var.cassandra_node_count
+  connection {
+    host        = element(sort(grid5000_deployment.cassandra_deployment.nodes), var.cassandra_node_count)
+    type        = "ssh"
+    user        = "root"
+    private_key = file("~/.ssh/id_rsa")
+  }
+
+  provisioner "file" {
+    source      = "../ansible"
+    destination = "/root/ansible"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "/root/ansible/ansible.sh",
+    ]
+  }
+}
+
+
+output "global_job_id" {
+  value = grid5000_job.reservation.id
+}
+
+output "all_nodes" {
+  value = grid5000_job.reservation.assigned_nodes
+}
+
+output "cassandra_job_id" {
+  value = grid5000_job.cassandra.id
 }
 
-output "nodes" {
+output "cassandra_nodes" {
   value = grid5000_job.cassandra.assigned_nodes
 }
diff --git a/sysadmin/grid5000/cassandra/terraform/terraform.tf b/sysadmin/grid5000/cassandra/terraform/terraform.tf
index f5df61d..f921e43 100644
--- a/sysadmin/grid5000/cassandra/terraform/terraform.tf
+++ b/sysadmin/grid5000/cassandra/terraform/terraform.tf
@@ -1,8 +1,12 @@
 terraform {
   required_providers {
+    ansible = {
+      source = "habakke/ansible"
+      version = "~> 1.0.9"
+    }
     grid5000 = {
       source  = "pmorillon/grid5000"
       version = "0.0.7"
     }
   }
 }
diff --git a/sysadmin/grid5000/cassandra/terraform/variables.tf b/sysadmin/grid5000/cassandra/terraform/variables.tf
new file mode 100644
index 0000000..16c444f
--- /dev/null
+++ b/sysadmin/grid5000/cassandra/terraform/variables.tf
@@ -0,0 +1,41 @@
+variable "site" {
+  description = "the grid5000 site to use"
+  default = "rennes"
+  type = string
+}
+
+variable "cluster" {
+  description = "the grid5000 cluster to use"
+  default = "parasilo"
+  type = string
+}
+
+variable "total_node_count" {
+  description = "The total number of nodes to reserve"
+  default = "1"
+  type = number
+}
+
+variable "cassandra_node_count" {
+  description = "The total number of cassandra nodes to install"
+  default = "1"
+  type = number
+}
+
+variable "sleep_time" {
+  description = "the reservation duration"
+  default = "1h"
+  type = string
+}
+
+variable "walltime" {
+  description = "the reservation duration"
+  default = "01:00:00"
+  type = string
+}
+
+variable "cassandra_walltime" {
+  description = "the reservation duration"
+  default = "00:58:00"
+  type = string
+}