diff --git a/README.md b/README.md
index a3d0bdb2495b5c518b05828bf6df27a5966d747a..e64eaa909b2344604151454488b0a9aa5577e9b9 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,41 @@
-Role Name
-=========
+docker_mattermost
+=================
 
-A brief description of the role goes here.
+This role deploys Mattermost on Docker
 
 Requirements
 ------------
 
-Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
+None
 
 Role Variables
 --------------
 
-A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as well.
+Variables from default directory :
+* mm_url: URL on which Mattermost will be listening
+* mm_db_name: Database name
+* mm_db_user: Database user
+* mm_db_pass: Database password
+* default_maintenance_email: maintenance e-mail used to request Let's Encrypt certificate
+* Mail configuration (optional, if set, a postfix proxy will be deployed, otherwise a mailhog instance will be deployed for blocking e-mails)
+  * mailname: domain to which the users belong to
+  * mailserver: SMTP server to use for sending e-mails (defaults to smtp.{{ domain }})
+  * smtpport: SMTP server port (defaults to 465)
+  * smtpuser: SMTP username (defaults to smtpuser)
+  * smtppass: SMTP user password (defaults to veryUnsecurePassToBeModified)
+* Backups :
+  * swift parameters for 2 object storage instances where backups should be pushed daily
+  * auth_backup_pass : Passphrase for encryption of backups
+
 
 Dependencies
 ------------
 
-A list of other roles hosted on Galaxy should go here, plus any details in regards to parameters that may need to be set for other roles, or variables that are used from other roles.
+This role requires the following Ansible collection :
+* community.docker
+
+This Docker role supposes that Traefik is deployed as an inverseproxy in front of the deployed Dockers.
+The following role is used by Le Filament for deploying Traefik : docker_server (https://sources.le-filament.com/lefilament/ansible-roles/docker_server)
 
 Example Playbook
 ----------------
@@ -25,7 +44,11 @@ Including an example of how to use your role (for instance, with variables passe
 
     - hosts: servers
       roles:
-         - { role: username.rolename, x: 42 }
+         - { role: docker_mattermost }
+      vars:
+         - { mm_url: "mattermost.example.org" }
+         - { mm_db_pas: "veryUnsecurePassToBeModified" }
+         - { default_maintenance_email: "maintenance@example.org" }
 
 License
 -------
diff --git a/defaults/main.yml b/defaults/main.yml
index 9457e0c9ab4dc507ab0989797be184a2746d5a1a..0c5525c73cc4e26b62f5aad2920c827551d26afa 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,2 +1,37 @@
 ---
-# defaults file for test
+# Mattermost URL
+mm_url: "mattermost.example.org"
+# Mattermost DB
+mm_db_name: "mattermost"
+mm_db_user: "mattermost"
+mm_db_pass: "veryUnsecurePassToBeModified"
+
+# Maintenance e-mail for Let's Encrypt certificate
+default_maintenance_email: maintenance@{{ domain }}
+
+# OPTIONAL - Mailserver, if defined a postfix proxy will be deployed, otherwise MailHog will be deployed
+# mailname: example.org
+# mailserver: smtp.example.org
+# smtpport: 465
+# smtpuser: smtpuser
+# smtppass: veryUnsecurePassToBeModified
+
+# Backups
+# Parameters for pushing backups to Object Storage - Instance 1
+swift_odoo_authurl: https://auth.cloud.ovh.net/v3/
+swift_odoo_authversion: 3
+swift_odoo_tenantid: "132e1fa"
+swift_odoo_tenantname: "12312534534"
+swift_odoo_username: "testuser"
+swift_odoo_password: "testpassword"
+swift_odoo_regionname: "GRA"
+# Parameters for pushing backups to Object Storage - Instance 2
+swift_odoo2_authurl: https://auth.cloud.ovh.net/v3/
+swift_odoo2_authversion: 3
+swift_odoo2_tenantid: "12323534ab"
+swift_odoo2_tenantname: "123124235345"
+swift_odoo2_username: "testuser"
+swift_odoo2_password: "testpassword"
+swift_odoo2_regionname: "DE"
+# Passphrase for backups encryption
+mm_backup_pass: notSecureEnoughPasswordToBeModified
diff --git a/meta/main.yml b/meta/main.yml
index 4ed794420a4091f49a205352f097ce321d7ec1f3..d8d07ee3f4d70d6f3c9c7a7ab0311a32713c45e0 100644
--- a/meta/main.yml
+++ b/meta/main.yml
@@ -1,20 +1,18 @@
+---
 galaxy_info:
   author: Rémi
-  description: your role description
+  description: This role deploys Mattermost on Docker
   company: Le Filament (https://le-filament.com)
-
   license: AGPL-3.0-or-later
-
   min_ansible_version: 2.1
-
   platforms:
-   - name: CentOS
-     versions:
-      - 7
-   - name: Ubuntu
-     versions:
-     - 16.04
-     - 18.04
-     - 20.04
-
-  galaxy_tags: []
+    - name: CentOS
+      versions:
+        - 7
+    - name: Ubuntu
+      versions:
+        - 16.04
+        - 18.04
+        - 20.04
+  galaxy_tags:
+    - mattermost