diff --git a/changelog.d/1109.feature b/changelog.d/1109.feature
new file mode 100644
index 000000000..8ab64a6f8
--- /dev/null
+++ b/changelog.d/1109.feature
@@ -0,0 +1 @@
+Add generic webhook transformation JS snippet for Prometheus Alertmanager.
diff --git a/contrib/jsTransformationFunctions/gitlab-pipeline.js b/contrib/jsTransformationFunctions/gitlab-pipeline.js
new file mode 100644
index 000000000..a9724c497
--- /dev/null
+++ b/contrib/jsTransformationFunctions/gitlab-pipeline.js
@@ -0,0 +1,35 @@
+if (data.object_kind === "pipeline") {
+    color = "white";
+    if (data.object_attributes.status === "success") {
+        color = "#00ff00";
+    } else if (data.object_attributes.status === "failed") {
+        color = "red";
+    }
+    text = `[<strong><a href="${data.project.web_url}">${data.project.path_with_namespace}</a></strong>]<br>`;
+    text += `CI pipeline <font color="${color}">${data.object_attributes.detailed_status}</font> <strong><a href="${data.project.web_url}/-/pipelines/${data.object_attributes.id}">#${data.object_attributes.id}</a></strong> ref <em>${data.object_attributes.ref}</em> (commit <a href="${data.project.web_url}/-/commit/${data.commit.id}"><code>${data.commit.id.slice(0,7)}</code></a> "<em>${data.commit.message}</em>")<br>`;
+    if ("builds" in data) {
+        text += "<ol>";
+        for (build of data.builds) {
+            text += `<li><a href="${data.project.web_url}/-/jobs/${build.id}">#${build.id}</a> <em>${build.name}</em>`;
+            if (build.runner) {
+                text += ` on runner <em>${build.runner.description}</em>`;
+            }
+            text += "</li>";
+        }
+        text += "</ol>";
+    }
+
+    type = data.build_status === "failed" ? "m.text" : "m.notice";
+    result = {
+        plain: text,
+        html: text,
+        version: "v2",
+        msgtype: type
+    }
+} else {
+    result = {
+        plain: "unsupported event, see message JSON source",
+        version: "v2",
+        msgtype: "m.notice"
+    }
+}