3.1 KiB
Salt 0.9.0 Release Notes
- release
- 2011-08-27
Salt 0.9.0 is here. This is an exciting release, 0.9.0 includes the new network topology features allowing peer salt commands and masters of masters via the syndic interface.
0.9.0 also introduces many more modules, improvements to the API and improvements to the ZeroMQ systems.
Download!
The Salt source can be downloaded from PyPI:
https://pypi.python.org/packages/source/s/salt/salt-0.9.0.tar.gz
Here is the md5sum:
9a925da04981e65a0f237f2e77ddab37
For instructions on how to set up Salt please see the installation
instructions.
New Features
Salt Syndic
The new Syndic interface <syndic> allows a master to be
commanded via another higher level salt master. This is a powerful
solution allowing a master control structure to exist, allowing salt to
scale to much larger levels then before.
Peer Communication
0.9.0 introduces the capability for a minion to call a publication on the master and receive the return from another set of minions. This allows salt to act as a communication channel between minions and as a general infrastructure message bus.
Peer communication is turned off by default but can be enabled via
the peer option in the master configuration file.
Documentation on the new Peer
interface <peer>.
Easily Extensible API
The minion and master classes have been redesigned to allow for
specialized minion and master servers to be easily created. An example
on how this is done for the master can be found in the
master.py salt module:
salt/master.py
The Master class extends the SMaster class
and set up the main master server.
The minion functions can now also be easily added to another
application via the SMinion class, this class can be found
in the minion.py module:
salt/minion.py
Cleaner Key Management
This release changes some of the key naming to allow for multiple master keys to be held based on the type of minion gathering the master key.
The -d option has also been added to the salt-key command allowing for easy removal of accepted public keys.
The --gen-keys option is now available as well for salt-key, this allows for a salt specific RSA key pair to be easily generated from the command line.
Improved 0MQ Master Workers
The 0MQ worker system has been further refined to be faster and more robust. This new system has been able to handle a much larger load than the previous setup. The new system uses the IPC protocol in 0MQ instead of TCP.
New Modules
Quite a few new modules have been made.
New Minion Modules
apache
Work directly with apache servers, great for managing balanced web servers
cron
Read out the contents of a systems crontabs
mdadm
Module to manage raid devices in Linux, appears as the
raid module
mysql
Gather simple data from MySQL databases
ps
Extensive utilities for managing processes
publish
Used by the peer interface to allow minions to make publications