Before upgrading, make sure you are allowing insecure registry access, or your newer docker won't be able to talk to the Deis registry:
sudo bash -c 'mkdir -p /etc/systemd/system/docker.service.d/; cat <<EOF > /etc/systemd/system/docker.service.d/50-insecure-registry.conf
[Service]
Environment="DOCKER_OPTS=--insecure-registry 10.0.0.0/8 --insecure-registry 172.16.0.0/12 --insecure-registry 192.168.0.0/16"
EOF
'
To kick off the upgrade:
sudo bash -ec 'uname -a && cat /etc/lsb-release && \
echo GROUP=stable > /etc/coreos/update.conf && \
systemctl unmask update-engine.service && \
systemctl start update-engine.service && \
update_engine_client -update && \
reboot'
After the reboot, wait a few minutes until you see that the grub boot flags have been updated:
journalctl -u update-engine.service | grep "boot flags"
After grub has been updated, stop the update-engine service and re-mask it:
sudo bash -ec 'systemctl stop update-engine.service && \
systemctl mask update-engine.service'
More information is available in Deis issue #3155 and CoreOS issue #262
How is this better than just doing a
update_engine_client -update
?