Changes:
- Changes to updateHostCmd to accepts hosttags parameter
- Changes to wipe out existing tags and save new ones in host_tags DB.
- UpdateHost is Admin only operation - so only root admin can update host tags
The step to upgrade xenserver,
1. put cluster in Unmanaged state through UI , then MS will not talk to hosts in the cluster
2. upgrade xenserver according to XenServer upgrade guide.
3. put cluster in Managed state through UI, then MS will reconnect hosts
TODO,
1. UI
2. vm pool sync , leveraged from kelven's work
1. check if there are snapshotsin this secondary storage, if yes , fails
2. check if there are private templatesin this secondary storage , if yes, fails
The sequence:
1. add host in UI
2. scp setup_agent.sh to agent host, and execute it. This script receives hostip,zoneid, podid and guid, then runs "cloud-setup-agent" and "cloud-setup-console-proxy". Here, we assume that network/hostname and cloud-agent are already configed and installed.
3. Write a dummy kvm resource into the database, then wait for agent connects to server, by polling the database for every 1 minutes. If it finds the agent is in UP state in database, then return, or wait for at least 10 minutes.