Fix lifecycle script (#5918)

* netdata/packaging/ci: stronger validations during install, add some comments, change validation of CWD

* netdata/packaging/ci: Add a lifecycle test to validate update from stable to latest works smooth

-> Add updater BATS script that does the trick for installing stable then migrating to latest using current code and not nightly
-> Integrate with travis
-> Rename /code to /netdata in travis, scripts will eventually expect the TLD of repo to be actually named netdata, so test will start failing later
-> Introduce a flag on the updater, so that it doesn't download the tarball, but it rather works with a local pre-defined directory. If a user wants
   to override the update process, so that it runs with a different repository he just needs to export NETDATA_LOCAL_TARBAL_OVERRIDE with the desired repo directory

* netdata/packaging/ci: Add required packages for it to run

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/updater_checks.sh b/tests/updater_checks.sh
new file mode 100755
index 0000000000..dce136853f
--- /dev/null
+++ b/tests/updater_checks.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+#
+# Wrapper script that installs the required dependencies
+# for the BATS script to run successfully
+#
+# Copyright: SPDX-License-Identifier: GPL-3.0-or-later
+#
+# Author  : Pavlos Emm. Katsoulakis <paul@netdata.cloud)
+#
+
+echo "Installing extra dependencies.."
+yum install -y epel-release
+yum install -y git bats
+
+echo "Running BATS file.."
+bats --tap tests/updater_checks.bats