added docker_legacy local repo

Change-Id: I4884d02bb1ecabc6fcf47da58b95c31eeb89dfc3
diff --git a/linux/system/repo_local/docker_legacy.yml b/linux/system/repo_local/docker_legacy.yml
new file mode 100644
index 0000000..d12cc0d
--- /dev/null
+++ b/linux/system/repo_local/docker_legacy.yml
@@ -0,0 +1,9 @@
+parameters:
+  linux:
+    system:
+      repo:
+        docker:
+          refresh_db: ${_param:linux_repo_refresh_db}
+          source: "deb [arch=amd64] http://${_param:local_repo_url}/ubuntu-${_param:linux_system_codename}/ ${_param:apt_mk_version} docker-legacy"
+          architectures: amd64
+          key_url: "http://${_param:local_repo_url}/public.gpg"
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