Host-HA offers investigation, fencing and recovery mechanisms for host that for
any reason are malfunctioning. It uses Activity and Health checks to determine
current host state based on which it may degrade a host or try to recover it. On
failing to recover it, it may try to fence the host.
The core feature is implemented in a hypervisor agnostic way, with two separate
implementations of the driver/provider for Simulator and KVM hypervisors. The
framework also allows for implementation of other hypervisor specific provider
implementation in future.
The Host-HA provider implementation for KVM hypervisor uses the out-of-band
management sub-system to issue IPMI calls to reset (recover) or poweroff (fence)
a host.
The Host-HA provider implementation for Simulator provides a means of testing
and validating the core framework implementation.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Support access to a host’s out-of-band management interface (e.g. IPMI, iLO,
DRAC, etc.) to manage host power operations (on/off etc.) and querying current
power state in CloudStack.
Given the wide range of out-of-band management interfaces such as iLO and iDRA,
the service implementation allows for development of separate drivers as plugins.
This feature comes with a ipmitool based driver that uses the
ipmitool (http://linux.die.net/man/1/ipmitool) to communicate with any
out-of-band management interface that support IPMI 2.0.
This feature allows following common use-cases:
- Restarting stalled/failed hosts
- Powering off under-utilised hosts
- Powering on hosts for provisioning or to increase capacity
- Allowing system administrators to see the current power state of the host
For testing this feature `ipmisim` can be used:
https://pypi.python.org/pypi/ipmisim
FS:
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Out-of-band+Management+for+CloudStack
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
As recently discussed on the dev list:
This sorts the domain lists based on their path.
Especially handy when having a lot of domains,
like in a public cloud.
Cherry-picked to 4.5 branch since commit exists in 4.4 and master branch.
(cherry picked from commit befa28251d)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
-Split 'dictionary.jsp' into two files -> 'dictionary.jsp' and
'dictionary2.jsp' -- this is due to JSP file constraints as the
localization object is getting quite long
-Per change above, 'dictionary' object is now split into an additonal
'dictionary2' object, which is merged with the main dict object on page
load
-All new dictionary mappings should be added to 'dictionary2' now.
Signed-off-by: Brian Federle <brian.federle@citrix.com>
This is a feature to handle DNS entries by means of an external DNS Provider,
such as Bind. These entries include DNS domains and reverse domains, VM records
and reverse records.
For a complete description, please refer to the design document available at
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Bind+and+PowerDNS+integration+by+Globo+DNSAPI
For the discussion about this feature on the dev mailing list, please refer to
http://markmail.org/thread/fvwf36hpxotiibka
Summary:
- new Network Service Provider called GloboDNS
- new Network Element to manage network domains and VM records (entries) on an external API
- new Network Resource to communicate with GloboDNS (open source)
- new API command to add DNS server
- new global option to determine if this provider should override VM entries on external DNS server
- changes in UI to include GloboDNS in Providers list
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>