mirror of
https://github.com/valitydev/salt.git
synced 2024-11-08 01:18:58 +00:00
80 lines
3.6 KiB
ReStructuredText
80 lines
3.6 KiB
ReStructuredText
|
========================
|
|||
|
|
Salt 0.8.7 release notes
|
|||
|
|
========================
|
|||
|
|
|
|||
|
|
It has been a month since salt 0.8.0, and it has been a long month! But Salt is
|
|||
|
|
still coming along strong. 0.8.7 has a lot of changes and a lot of updates.
|
|||
|
|
This update makes Salt’s ZeroMQ back end better, strips facter from the
|
|||
|
|
dependencies, and introduces interfaces to handle more capabilities.
|
|||
|
|
|
|||
|
|
Many of the major updates are in the background, but the changes should shine
|
|||
|
|
through to the surface. A number of the new features are still a little thin,
|
|||
|
|
but the back end to support expansion is in place.
|
|||
|
|
|
|||
|
|
I also recently gave a presentation to the Utah Python users group in Salt Lake
|
|||
|
|
City, the slides from this presentation are available here:
|
|||
|
|
https://github.com/downloads/thatch45/salt/Salt.pdf
|
|||
|
|
|
|||
|
|
The video from this presentation will be available shortly.
|
|||
|
|
|
|||
|
|
The major new features and changes in Salt 0.8.7 are:
|
|||
|
|
|
|||
|
|
* Revamp ZeroMQ topology on the master for better scalability
|
|||
|
|
* State enforcement
|
|||
|
|
* Dynamic state enforcement managers
|
|||
|
|
* Extract the module loader into salt.loader
|
|||
|
|
* Make Job ids more granular
|
|||
|
|
* Replace facter functionality with the new salt grains interface
|
|||
|
|
* Support for “virtual” salt modules
|
|||
|
|
* Introduce the salt-call command
|
|||
|
|
* Better debugging for minion modules
|
|||
|
|
|
|||
|
|
The new ZeroMQ topology allows for better scalability, this will be required by
|
|||
|
|
the need to execute massive file transfers to multiple machines in parallel and
|
|||
|
|
state management. The new ZeroMQ topology is available in the aforementioned
|
|||
|
|
presentation.
|
|||
|
|
|
|||
|
|
0.8.7 introduces the capability to declare states, this is similar to the
|
|||
|
|
capabilities of Puppet. States in salt are declared via state data structures.
|
|||
|
|
This system is very young, but the core feature set is available. Salt states
|
|||
|
|
work around rendering files which represent Salt high data. More on the Salt
|
|||
|
|
state system will be documented in the near future.
|
|||
|
|
|
|||
|
|
The system for loading salt modules has been pulled out of the minion class to
|
|||
|
|
be a standalone module, this has enabled more dynamic loading of Salt modules
|
|||
|
|
and enables many of the updates in 0.8.7 –
|
|||
|
|
https://github.com/thatch45/salt/blob/master/salt/loader.py
|
|||
|
|
|
|||
|
|
Salt Job ids are now microsecond precise, this was needed to repair a race
|
|||
|
|
condition unveiled by the speed improvements in the new ZeroMQ topology.
|
|||
|
|
|
|||
|
|
The new grains interface replaces the functionality of Facter, the idea behind
|
|||
|
|
grains differs from Facter in that the grains are only used for static system
|
|||
|
|
data, dynamic data needs to be derived from a call to a salt module. This makes
|
|||
|
|
grains much faster to use, since the grains data is generated when the minion
|
|||
|
|
starts.
|
|||
|
|
|
|||
|
|
Virtual salt modules allows for a salt module to be presented as something
|
|||
|
|
other than its module name. The idea here is that based on information from the
|
|||
|
|
minion decisions about which module should be presented can be made. The best
|
|||
|
|
example is the pacman module. The pacman module will only load on Arch Linux
|
|||
|
|
minions, and will be called pkg. Similarly the yum module will be presented as
|
|||
|
|
pkg when the minion starts on a Fedora/RedHat system.
|
|||
|
|
|
|||
|
|
The new salt-call command allows for minion modules to be executed from the
|
|||
|
|
minion. This means that on the minion a salt module can be executed, this is a
|
|||
|
|
great tool for testing Salt modules. The salt-call command can also be used to
|
|||
|
|
view the grains data.
|
|||
|
|
|
|||
|
|
In previous releases when a minion module threw an exception very little data
|
|||
|
|
was returned to the master. Now the stack trace from the failure is returned
|
|||
|
|
making debugging of minion modules MUCH easier.
|
|||
|
|
|
|||
|
|
Salt is nearing the goal of 1.0, where the core feature set and capability is
|
|||
|
|
complete!
|
|||
|
|
|
|||
|
|
Salt 0.8.7 can be downloaded from github here:
|
|||
|
|
https://github.com/downloads/thatch45/salt/salt-0.8.7.tar.gz
|
|||
|
|
|
|||
|
|
-Thomas S Hatch
|