Permalink
Commits on Mar 3, 2012
  1. refactored the codebase and the mechanism for storing the Microkernel…

    … Controller configuration in order to work in changes implemented in Razor to return a Microkernel Controller configuration as part of the "Checkin Response". Required changes to the Razor Microkernel Controller, the Razor Microkernel Web Server, and the mk_conf.yaml file itself (in order to add the code to process the configuration from the Checkin Response and to account for changes made to the configuration property names in order to keep them in a flatter model on the Razor Server side of things). Also moved the log-file location for the Microkernel Controller to the /var/log directory (to make it consistent with the Razor Microkernel Web Server's logfile location), added additional debugging output, and created a new "Configuration Manager" class (a singleton class that consolidates the common functionality needed in both the WEBrick server and the Microkernel Controller to check for changes in the Microkernel Configuration and save a new configuration to the mk_conf.yaml file). Finally, refactored the names of a number of classes/scripts so that the classes/scripts in the /usr/local/bin directory of the Microkernel all include a "rz_mk_" prefix at the front of their file names.
    Tom McSweeney committed Mar 3, 2012
Commits on Feb 29, 2012
  1. Adding the following licensing text to all of the source-code in the …

    …project:
    
    EMC Confidential Information, protected under EMC Bilateral Non-Disclosure Agreement.
    Copyright © 2012 EMC Corporation, All Rights Reserved
    Tom McSweeney committed Feb 29, 2012
  2. Latest version of the Razor Microkernel (v0.1.4.0); includes changes …

    …to fix the reboot action in the Microkernel Controller, shortening of the sleep interval between iterations (as a carry-over until we can get the push of configuration from Razor working properly), and removal of the "mk" prefix from Microkernel hostname when constructing a uuid for use in checkin/registration. Also added error handling to the main Microkernel Controller loop so that it would continue to run, even in the face of unexpected input from the Razor server (or complete failure of the Razor server). Finally, pulled in some of the files that we modified in the default Tiny Core Linux distribution in order to grab the "next-server" from the DHCP reply (the /etc/init.d/dhcp.sh script and the /usr/share/udhcpc/dhcp_mk_config.script file).
    Tom McSweeney committed Feb 29, 2012
Commits on Feb 27, 2012
  1. first commit

    lynxbat committed Feb 27, 2012
Commits on Feb 26, 2012
  1. Added additional version number information to the README file and cl…

    …eaned up the README file a bit more.
    Tom McSweeney committed Feb 26, 2012
  2. Updating the README file (and breaking out part of it into a separate…

    … README2 file) to reflect the latest changes in this project (currently at v0.1.1.0)
    Tom McSweeney committed Feb 26, 2012
Commits on Feb 25, 2012
  1. Added a command to reboot the node if a "reboot" action is received i…

    …n a checkin-reply
    Tom McSweeney committed Feb 25, 2012
Commits on Feb 24, 2012
  1. New version of the Microkernel that has been refactored to separate the

    "registration" action from the "checkin" action.  This version includes a
    daemon service that sends out a periodic checkin to the Razor server and
    reacts to commands received in the reply to that checkin request.  There
    is a separate "configuration agent" and WEBrick server that are used to
    push out a Razor configuration (a JSON-ized Hash Map) to nodes.  This
    configuration (and any later configuration changes) is pushed out through
    the MCollective (via the configuration agent running on each node) and
    that agent interacts with the WEBrick instance to save the configuration
    (if it has changed) to the Microkernel's filesystem and to force
    a restart of the Microkernel Controller (again, only if the configuration
    is different from the configuration that was received from Razor previously).
    Tom McSweeney committed Feb 24, 2012
  2. Added code to check for changes in the configuration; am now only sav…

    …ing the configuration just received from the Configuration Agent and restarting the Microkernel Controller's daemon process if the configuration just received is different from the configuration received previously.
    Tom McSweeney committed Feb 24, 2012
  3. Initial version of the next release of the Microkernel (v0.1.0.0). Is…

    … a fairly significant change from the previous release of the Microkernel (v0.0.2.0). There are now two servers running in the Microkernel: a Ruby daemon script (the Microkernel Controller) that manages the checkin process with the Razor server and a WEBrick instance that, at the current time, only picks up configuration changes sent out across the MCollective, saves them, and then restarts the Microkernel Controller (which forces the controller to pick up the new configuration immediately). Will package up the ISO and build files for this release tomorrow (or perhaps later today is a better way to view it...it is kind of late)
    Tom McSweeney committed Feb 24, 2012
  4. Implemented the last of the changes to enable the checkin command...w…

    …ill have to test next
    Tom McSweeney committed Feb 24, 2012
Commits on Feb 23, 2012
  1. Almost ready to enable the "checkin" action in this daemon process. W…

    …ill complete work on it tomorrow.
    Tom McSweeney committed Feb 23, 2012
  2. Cleaned up how state is handled when the node is registered (now pass…

    …es the "last_state" in as an argument to the node registration methods). Also cleaned up the wait code in the rz_mk_control_server so that it properly handles the case where the time remaining in the sleep window is zero or negative (in which case it doesn't even try to sleep). Finally, cleaned up a few comments and a bit of code to make things more readable.
    Tom McSweeney committed Feb 23, 2012
  3. Added a slightly modified version of the FactManager class back into …

    …our codebase so that we could check the current facts and see if they've changed since the last successful registration of this Microkernel instance with the Razor server. Added code to save a timestamp in the FactManager class each time the fact_map is saved to the file indicated by the "prev_facts_filename" and made that field accessible (so that it can be checked in the main event loop in our rz_mk_contol_server daemon script to see if we've saved facts since the iteration started). Removed code from the old FactManager class that actually loaded the facts into memory each time the facts where checked (to see if they've changed since they were last loaded); instead the current_fact_map is passed in as an argument. Finally, stubbed out the code in the RzMkRegistrationManager class that will register a node if the facts have changed. Still need to add code to this class to deal with the keep-alive HTTP requests (make the request, parse the reply, and take action based on the action in the reply, if any).
    Tom McSweeney committed Feb 23, 2012
Commits on Feb 22, 2012
  1. Small change (basically just changed where in the script the variable…

    … is set that specifies which file is used to serialize the Microkernel configuration)
    Tom McSweeney committed Feb 22, 2012
  2. Added "logger" instance back in (and added it to the constructor for …

    …the RzMkRegistrationManager class). Also changed the name of the log file for the rz_mk_web_server to be consistent with the name of the script itself...
    Tom McSweeney committed Feb 22, 2012
  3. A couple of small "cleanup" type changes...nothing significant, more …

    …of a "neatness counts" sort of checkin
    Tom McSweeney committed Feb 22, 2012
  4. Reworked yesterday's code changes a bit (refactoring names, reworking…

    … the interactions betwen scripts, etc.). Also added hooks into the rz_mk_control_server to read the configuration and added code to sleep the appropriate amounts of time between iterations. Verified that the code works as it should under a "restart".
    Tom McSweeney committed Feb 22, 2012
  5. Reworked yesterday's code changes a bit (refactoring names, reworking…

    … the interactions betwen scripts, etc.). Also added hooks into the rz_mk_control_server to read the configuration and added code to sleep the appropriate amounts of time between iterations. Verified that the code works as it should under a "restart".
    Tom McSweeney committed Feb 22, 2012
  6. First round of changes to refactor (now using a hash map for configur…

    …ation; agent not just sets the configuration for the microkernel using a servlet running in the WEBrick server instance, a separate rz_mk_controller has been defined that will control the rz_mk_control_server, and the rz_mk_control_server will send out the keep-alive signal to the Razor server and take action based on the reply it gets back in reponse to that keep-alive signal). More work is required before we have a working set of services for the Microkernel, but it's a start
    Tom McSweeney committed Feb 22, 2012
Commits on Feb 17, 2012
  1. Added dmidecode package to the Microkernel ISO (fixes an issue that w…

    …as causing facter to report that the OS was running in a physical environment, even if it was in a virtual environment). In this new image, the dmidecode command is available at boot and the facter output is correct (showing correctly if the Microkernel is in a virtual environment or not and, if it is virtual, showing the type of virtual environment being used)
    Tom McSweeney committed Feb 17, 2012
  2. Added dmidecode package to the Microkernel ISO (fixes an issue that was

    causing facter to report that the OS was running in a physical environment,
    even if it was in a virtual environment).  In this new image, the dmidecode
    command is available at boot and the facter output is correct (showing
    correctly if the Microkernel is in a virtual environment or not and, if
    it is virtual, showing the type of virtual environment being used)
    Tom McSweeney committed Feb 17, 2012
Commits on Feb 16, 2012
  1. Added TO DO list to the README file

    Tom McSweeney committed Feb 16, 2012
  2. Changed URL-related references in the codebase to URI-related referen…

    …ces instead. Also added code to catch the case where the factMap had not changed but the Registration URI had. Eventually will want to modify this code so that the factMap is saved to disk as a Hash Map (with the key being the Registration URI) so that we can have more than one registration server...
    Tom McSweeney committed Feb 16, 2012
  3. Changed URL-related references in the codebase to URI-related referen…

    …ces instead. Also added code to catch the case where the factMap had not changed but the Registration URI had. Eventually will want to modify this code so that the factMap is saved to disk as a Hash Map (with the key being the Registration URI) so that we can have more than one registration server...
    Tom McSweeney committed Feb 16, 2012
  4. Changed URL-related references in the codebase to URI-related referen…

    …ces instead. Also added code to catch the case where the factMap had not changed but the Registration URI had. Eventually will want to modify this code so that the factMap is saved to disk as a Hash Map (with the key being the Registration URI) so that we can have more than one registration server...
    Tom McSweeney committed Feb 16, 2012
Commits on Feb 15, 2012
  1. First version of a WEBrick-based Microkernel Controller. With this ch…

    …ange, can now get rid of the rz_mk_controllerd.rb script (since we now have a proper Microkernel Controller), but required changes to the configuration agent and the rz_mk_init.rb script. Also factored out the Facter-related code into a separate utility class.
    Tom McSweeney committed Feb 15, 2012
Commits on Feb 14, 2012
  1. Commit to tag the current release...

    Tom McSweeney committed Feb 14, 2012
Commits on Feb 12, 2012
  1. New versions of the Microkernel ISO file (and the gzipped tarfile tha…

    …t contains all of the files needed to build that ISO file). This version of the Microkernel adds the ability to exclude some of the facts gathered by Facter (based on whether or not their name matches a pre-defined "exclude" pattern) from the set of facts reported to the Razor server during the registration process. This version of the ISO also actually POSTs these facts to the server that should be running at the registration URL (previous versions just output what would be posted to the logfile). Finally, the output to the logfile in this version has been changed so that all of the messages are debug messages. This is in anticipation of a time when most of these messages will not be output to the logfile (and additional, error output messages will be added).
    Tom McSweeney committed Feb 12, 2012
  2. New versions of the Microkernel ISO file (and the gzipped tarfile that

    contains all of the files needed to build that ISO file).  This version
    of the Microkernel adds the ability to exclude some of the facts gathered
    by Facter (based on whether or not their name matches a pre-defined
    "exclude" pattern) from the set of facts reported to the Razor server
    during the registration process.  This version of the ISO also actually
    POSTs these facts to the server that should be running at the registration
    URL (previous versions just output what would be posted to the logfile).
    Finally, the output to the logfile in this version has been changed
    so that all of the messages are debug messages.  This is in anticipation
    of a time when most of these messages will not be output to the logfile
    (and additional, error output messages will be added).
    Tom McSweeney committed Feb 12, 2012
  3. Latest bug fixes, still chasing a bug in the post

    Tom McSweeney committed Feb 12, 2012