diff --git a/tasks/agent.py b/tasks/agent.py
index bed736cd38279..7860fa5238378 100644
--- a/tasks/agent.py
+++ b/tasks/agent.py
@@ -649,6 +649,18 @@ def bundle_install_omnibus(ctx, gem_path=None, env=None):
         ctx.run(cmd, env=env)
 
 
+def _get_build_images(ctx):
+    tags = ctx.run("grep -E 'DATADOG_AGENT_.*BUILDIMAGES:' .gitlab-ci.yml | cut -d ':' -f 2").stdout
+    return map(lambda t: t.strip(), tags.splitlines())
+
+
+def _omnibus_compute_cache_key(ctx):
+    omnibus_last_commit = ctx.run('git log -n 1 --pretty=format:%H omnibus/').stdout
+    buildimages_hash = _get_build_images(ctx)
+
+    pass
+
+
 # hardened-runtime needs to be set to False to build on MacOS < 10.13.6, as the -o runtime option is not supported.
 @task(
     help={