Revert "Revert "Add MongoDB installation for Alerta""

This reverts commit cdddd9b21e97615bf476eb9a82db546f633b568b.

https://gerrit.mcp.mirantis.net/#/c/20779/ is merged, now we can use mongo in the deployment workflow

Change-Id: If11e378e3b5872f8627e774d16bc97130c039542
diff --git a/tcp_tests/templates/cookied-mcp-pike-ovs/sl.yaml b/tcp_tests/templates/cookied-mcp-pike-ovs/sl.yaml
index a23b74c..e7c1175 100644
--- a/tcp_tests/templates/cookied-mcp-pike-ovs/sl.yaml
+++ b/tcp_tests/templates/cookied-mcp-pike-ovs/sl.yaml
@@ -68,6 +68,13 @@
   skip_fail: false
 
 # Install slv2 infra
+# Install MongoDB for alerta
+- description: Install MongoDB
+  cmd: salt --hard-crash --state-output=mixed --state-verbose=False -C 'I@mongodb:server' state.sls mongodb
+  node_name: {{ HOSTNAME_CFG01 }}
+  retry: {count: 2, delay: 10}
+  skip_fail: false
+
 #Launch containers
 - description: launch prometheus containers
   cmd: salt --hard-crash --state-output=mixed --state-verbose=False -C 'I@docker:swarm:role:master and I@prometheus:server' state.sls docker.client