Add section about deploy new version

README.md

@@ -39,6 +39,30 @@ ansible-playbook --inventory scaleway_inventory.yml --limit validata-next --user
 
 Then copy [api.secrets.env.template](./production/api.secrets.env.template) and [ui.secrets.env.template](./production/ui.secrets.env.template) to `/etc/docker/compose/validata` on server (removing the `.template` extension), and fill-in the values. Read [validata-api](https://git.opendatafrance.net/validata/validata-api) and [validata-ui](https://git.opendatafrance.net/validata/validata-ui) documentation for more information about environment variables.
 
+### Deploy a new version
+
+To deploy a new version of Validata:
+
+```bash
+ssh root@go-next.validata.fr
+cd /etc/docker/compose/validata
+docker-compose pull
+docker-compose up -d
+```
+
+Test that it works. To see the logs:
+
+```bash
+docker-compose logs
+docker-compose logs -f
+```
+
+To delete older images (among other things):
+
+```bash
+docker system prune
+```
+
 ## See also
 
 - https://git.opendatafrance.net/validata/validata-ui