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>
This feature allows root administrators to define new roles and associate API
permissions to them.
A limited form of role-based access control for the CloudStack management server
API is provided through a properties file, commands.properties, embedded in the
WAR distribution. Therefore, customizing API permissions requires unpacking the
distribution and modifying this file consistently on all servers. The old system
also does not permit the specification of additional roles.
FS:
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Dynamic+Role+Based+API+Access+Checker+for+CloudStack
DB-Backed Dynamic Role Based API Access Checker for CloudStack brings following
changes, features and use-cases:
- Moves the API access definitions from commands.properties to the mgmt server DB
- Allows defining custom roles (such as a read-only ROOT admin) beyond the
current set of four (4) roles
- All roles will resolve to one of the four known roles types (Admin, Resource
Admin, Domain Admin and User) which maintains this association by requiring
all new defined roles to specify a role type.
- Allows changes to roles and API permissions per role at runtime including additions or
removal of roles and/or modifications of permissions, without the need
of restarting management server(s)
Upgrade/installation notes:
- The feature will be enabled by default for new installations, existing
deployments will continue to use the older static role based api access checker
with an option to enable this feature
- During fresh installation or upgrade, the upgrade paths will add four default
roles based on the four default role types
- For ease of migration, at the time of upgrade commands.properties will be used
to add existing set of permissions to the default roles. cloud.account
will have a new role_id column which will be populated based on default roles
as well
Dynamic-roles migration tool: scripts/util/migrate-dynamicroles.py
- Allows admins to migrate to the dynamic role based checker at a future date
- Performs a harder one-way migrate and update
- Migrates rules from existing commands.properties file into db and deprecates it
- Enables an internal hidden switch to enable dynamic role based checker feature
Deprecate commands.properties
- Fixes apidocs and marvin to be independent of commands.properties usage
- Removes bundling of commands.properties in deb/rpm packaging
- Removes file references across codebase
Reviewed-by: John Burwell <john.burwell@shapeblue.com>
QA-by: Boris Stoyanov <boris.stoyanov@shapeblue.com>
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This adds a spring bean xml to have EventBus for ACS, but the bean is commented
so the event bus service won't start by default. I'm adding this for any developer
who may want to hack on events and may use it just by uncommenting it and fixing
options.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
- Have opensaml dependency to get version from root pom
- add com.cloud.api.auth.APIAuthenticationManagerImpl to spring ctx manager
- Fix getCommands() in APIAuthenticationManagerImpl
- Fix imports in resources, test and src classes
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
- This implements ManageBase, is a pluggable service
- Has a mechanism to return commands, useful for apidocs etc.
- Has a method to return APIAuthenticator based on API command name
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Corrects problems from previous attempt. Fixes based on help comments from
the community and conflict resolution
Signed-off-by: Daan Hoogland <daan@onecht.net>
Adding the missing file
During HA and maintenance call different planners (if the original planners are not able to find capacity) which skip some heurestics
The following types were not setup to discover extensions
com.cloud.network.element.FirewallServiceProvider
com.cloud.network.element.PortForwardingServiceProvider
com.cloud.network.element.StaticNatServiceProvider
com.cloud.network.element.NetworkACLServiceProvider
com.cloud.network.element.LoadBalancingServiceProvider
com.cloud.network.element.Site2SiteVpnServiceProvider
ACS is now comprised of a hierarchy of spring application contexts.
Each plugin can contribute configuration files to add to an existing
module or create it's own module.
Additionally, for the mgmt server, ACS custom AOP is no longer used
and instead we use Spring AOP to manage interceptors.
Rohit Yadav
Abhinandan Prateek
Anthony Xu
Hugo Trippaers
Murali Reddy
Likitha Shetty
Prachi Damle
Min Chen
Antonio Fornie
Alena Prokharchyk
Alex Huang
Ian Southam
Nitin Mehta
Kelven Yang
Darren Shepherd
Syed
Darren Shepherd