gouthamr:  Hi,After I add ssh key, this error occur. I use a staic node in nodepool. this node is a ubuntu sys. I only config ssh key. 
Task  **Export legacy syslog.txt** failed running on host **controller**
journalctl \
    -t kernel \
    -t sudo \
    --no-pager \
    --since="$(cat /opt/stack/log-start-timestamp.txt)" \
   > /home/zuul/logs/syslog.txt
non-zero return code
cat: /opt/stack/log-start-timestamp.txt: No such file or directory
[0;1;31mFailed to parse timestamp: [0m