feat: Initial code

Signed-off-by: Julien Riou <julien@riou.xyz>

README.md

@@ -1,3 +1,74 @@
 # galene-cloud
 
-Run galene in the cloud using OpenTofu and Ansible
+Run galene in the cloud using OpenTofu and Ansible.
+
+# Requirements
+
+* Ansible (`ansible`)
+* OpenTofu (`tofu`)
+* Public Cloud project on [OVHcloud](https://www.ovhcloud.com)
+* Domain zone on [OVHcloud](https://www.ovhcloud.com)
+
+# OpenTofu
+
+## Configuration
+
+### OpenStack provider
+
+> tofu/clouds.yaml
+
+The `clouds.yaml` file will automatically configure the openstack provider to
+use your Public Cloud project.
+
+Go to the [OVHcloud Manager](https://www.ovh.com/manager/), then "Public Cloud"
+section, then "Horizon", then "API access". In the drop down on the right,
+select "OpenStack clouds.yaml File".
+
+### OVH provider
+
+> tofu/ovh.conf
+
+Follow the [First Steps with the OVHcloud
+APIs](https://help.ovhcloud.com/csm/en-gb-api-getting-started-ovhcloud-api?id=kb_article_view&sysparm_article=KB0042784)
+guide, section "Advanced usage: pair OVHcloud APIs with an application", to
+generate the `ovh.conf` file.
+
+### Variables
+
+* **domain**: Name of the domain zone
+* **hostname**: Name of the server (default: "galene")
+* **openstack_image**: Name of the OpenStack image (default: "Debian 12")
+* **openstack_flavor**: Name of the OpenStack flavor (default: "d2-2")
+
+Variables can be provided using files ending with `.tfvars` extension. See [the
+documentation](https://opentofu.org/docs/language/values/variables/#variable-definitions-tfvars-files)
+for more information.
+
+## Usage
+
+Change directory to "tofu":
+
+```
+cd tofu
+```
+
+### Start
+
+```
+tofu plan
+tofu apply
+```
+
+Then follow the instructions for Ansible.
+
+### Stop
+
+```
+tofu destroy
+```
+
+# Ansible
+
+## Configuration
+
+## Usage