Merge branch '442-hostname-is-still-too-long' into 'master'

Resolve "Hostname is still too long"

Closes #442

See merge request openappstack/openappstack!186

.gitlab/ci_scripts/create_vps.sh

@@ -2,6 +2,10 @@
 # Check if cluster directory was available from cache
 set -v
 
+# Shorten the hostname to work around a bug in cosmos, which fails to create a
+# working VPS if the the hostname is too long.
+HOSTNAME=$(expr substr "${HOSTNAME}" 1 40)
+
 if [ -d clusters/$HOSTNAME/secrets ]
 then
   ip_address=$(python -m openappstack ${HOSTNAME} info --ip-address)