Feature 11033: Publication of OSM helm chart externally in Gitlab

Change-Id: Ic201e8ffcb217e470277c0150a847750ba594e12
Signed-off-by: vegall <lvega@whitestack.com>
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..49d91cd
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,36 @@
+# Copyright 2024 ETSI
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+stages:
+  - build
+
+variables:
+  HELM_EXPERIMENTAL_OCI: 1
+
+build-job:
+  stage: build
+  before_script:
+    - apt-get update && apt-get install -y curl tar gzip
+    - curl -LO https://get.helm.sh/helm-v3.15.1-linux-amd64.tar.gz
+    - tar -zxvf helm-v3.15.1-linux-amd64.tar.gz
+    - mv linux-amd64/helm /usr/local/bin/helm
+    - helm version
+  script:
+    - helm dep update installers/helm/osm/
+    - helm package installers/helm/osm/
+    - echo $CI_JOB_TOKEN | helm registry login $CI_REGISTRY --username gitlab-ci-token --password-stdin
+    - helm push osm-*.tgz oci://$CI_REGISTRY/osm/devops
+  only:
+    - tags
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