Kubernetes-setup.md

@@ -31,4 +31,21 @@ You can give as much information as possible to the team for creation:
     * **scopes**: read_registry
 2. Add the new informations to your Variables (`Settings/CI/CD/Variables`)
     * Add the username (by default `gitlab+deploy-token-xx`) and name it `DEPLOY_USER`
-    * Add the token and name it `DEPLOY_TOKEN`
+    * Add the token and name it `DEPLOY_TOKEN`
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+
+### Build your image
+
+First you need to build your image during the CI in gitlab. For this, I recommand to write a script that do this process and call it in the `.gitlab-ci.yml`:
+
+#### Build script:
+```bash
+#!/bin/sh
+echo "$CI_REGISTRY_PASSWORD" | docker login -u "$CI_REGISTRY_USER" --password-stdin $CI_REGISTRY
+
+# Build backend
+docker build -t "$CI_REGISTRY_IMAGE/backend:${CI_COMMIT_REF_NAME}" backend/
+docker tag "$CI_REGISTRY_IMAGE/backend:${CI_COMMIT_REF_NAME}" "$CI_REGISTRY_IMAGE/backend:latest"
+docker push "$CI_REGISTRY_IMAGE/backend:${CI_COMMIT_REF_NAME}"
+```
+
+> You do not have to set `CI_REGISTRY_PASSWORD` and `$CI_REGISTRY_USER` variables in gitlab.
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