gitlab-ci: add frontend build

Signed-off-by: Nicolas Froger <nicolas@kektus.xyz>

.gitlab-ci.yml

@@ -0,0 +1,18 @@
+---
+
+stages:
+  - build
+
+build-front:
+  stage: build
+  image:
+    name: gcr.io/kaniko-project/executor:v1.23.2-debug
+    entrypoint: [""]
+  script:
+    - /kaniko/executor
+      --cache=true
+      --context "${CI_PROJECT_DIR}/summer2024-frontend"
+      --dockerfile "${CI_PROJECT_DIR}/summer2024-frontend/Dockerfile"
+      --destination "${CI_REGISTRY_IMAGE}/frontend:${CI_COMMIT_TAG}"
+  rules:
+    - if: $CI_COMMIT_TAG