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changes.mady.by.user Sanjay Tripathi

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changes.mady.by.user Devdeep Singh

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  • Requirements
    • Search available updates released for applicable XenServer versions and display them on CloudStack dashboard so that admin can see the available updates and apply them manually.
  • Non-requirements
    • Cloudstack will only list the available updates and it is not responsible for applying the updates on the host.
  • Test guidelines
    • Functional test
  • Configuration
    • There are two global configuration parameters:
      • xen.update.url - URL to get latest Xenserver Updates. Default value for it is http://updates.xensource.com/XenServer/updates.xml;
      • update.check.interval (in sec) - How frequently should CloudStack check for Xenserver Updates. By default CloudStack will check for new updates once a week.
  • User permission
    • Root-Admin would have privilege to list the available updates.

Use Cases

*Admin can check the updates available to any host and install them manually.

*Admin can decide on how frequently he wants Cloudstack to check for updates and set the interval by changing the global config parameter update.check.interval .

Architecture and Design description

Search for Host Updates

At regular intervals, update.check.interval, management server will look for all available updates for a Hypervisior. For Xenserver, it'll downloads the latest update information from http://updates.xensource.com/XenServer/updates.xml. The location is configurable through xen.update.url in global configuration.

  • Search the released patches for applicable XenServer version.
  • Fetch the information about the already applied patches from the agent.
  • Compare the list of available patches with the list of already applied patches.
  • Prepare a list of patches that are not yet applied.
  • Fill/update the patch details into host_updates table.
  • Make a corresponding entry into host_updates_ref table.

Admin can change the time interval to check the updates by changing the value of update.check.interval global config parameter(by default interval is set to check for updates once a week).

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