Add NTP Sync

Adds ntp to the new VM and forces a full clock sync to avoid
any drift between Jenkins and ETSI VIM

Fixes bug 1775

Change-Id: I7cec55cdedcf53f6206ee54959dea4f8f1cfeb65
Signed-off-by: beierlm <mark.beierl@canonical.com>
(cherry picked from commit b59bd0db)

jenkins/ci-pipelines/ci_stage_3.groovy

@@ -443,6 +443,15 @@ node("${params.NODE}") {
                     remote.logLevel = 'INFO'
                     remote.pty = true
 
+                    // Force time sync to avoid clock drift and invalid certificates
+                    sshCommand remote: remote, command: """
+                        sudo apt update
+                        sudo apt install -y ntp
+                        sudo service ntp stop
+                        sudo ntpd -gq
+                        sudo service ntp start
+                    """
+
                     sshCommand remote: remote, command: """
                         wget https://osm-download.etsi.org/ftp/osm-10.0-ten/install_osm.sh
                         chmod +x ./install_osm.sh