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134 lines
5.4 KiB
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==============================
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Salt Cloud 0.8.3 Release Notes
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==============================
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Welcome to 0.8.3! While there are some new features, this release of Salt
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Cloud is primarily targeted at stability. Read on to see what's happened.
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Documentation
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=============
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The documentation for Salt Cloud can be found on Read the Docs:
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https://salt-cloud.readthedocs.io
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Download
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========
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Salt Cloud can be downloaded and install via pypi or github:
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https://pypi.python.org/packages/source/s/salt-cloud/salt-cloud-0.8.3.tar.gz
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https://cloud.github.com/downloads/saltstack/salt-cloud/salt-cloud-0.8.3.tar.gz
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Some packages have been made available for salt-cloud and more on their
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way. Packages for Arch and FreeBSD are being made available thanks to the
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work of Christer Edwards, and packages for RHEL and Fedora are being created
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by Clint Savage. Package availability will be announced on the salt mailing list.
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No Deploy
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=========
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Salt Cloud was originally intended to spin up machines and deploy Salt on them,
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but several use cases have arisen in which this is not the appropriate action.
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For instance, when booting into new platforms which may not even support Salt
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just yet, it makes no sense to try and install a nonexistent package. In these
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instances, you can add the --no-deploy argument to the salt-cloud command to
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skip running the deploy script.
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It is also possible to configure Salt Cloud to default to never deploying:
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.. code-block:: yaml
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deploy: False
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Firing Events
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=============
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Salt Cloud is starting to make use of Salt's event system. If you are watching
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the event bus on the Salt Master, you can now watch for events to fire when
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minions are created or destroyed.
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Start Actions
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=============
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This is an experimental feature which some users may find handy. You may now
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configure a start_action for a deployed VM:
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.. code-block:: yaml
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start_action: state.highstate
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If configured, when the salt-cloud command runs the deploy script, it will open
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a subprocess to wait for the salt-minion service to start, and check in with
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the master (via the salt event bus). This feature does not currently work
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smoothly with all providers, particularly the ones which do not use "root" as
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the default login users. Your mileage will vary.
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Exception Handling
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==================
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There were a handful of spots in the code which would exit when an error
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occurred, sometimes without any meaningful error messages. This was neither
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helpful to the user, nor Pythonic. Errors now should fire an exception of some
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sort, and if the error is Salt- or Salt Cloud-specific, a SaltException will be
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fired. This also helps pave the way for API usage of Salt Cloud.
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Provider-Specific Actions
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=========================
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This is largely a programmatic addition at this point, which will continue to
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expand into userland. All providers supported by libcloud provide a minimum
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level of functionality that Salt Cloud takes advantage of. Most providers also
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include a number of "extra" functions which are non-standard. Some of these
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are critical in certain instances. For instance, most providers will shut down
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a VM for you when you send a destroy command, but Joyent requires you to
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manually shut it down first. This was previously only doable via their web
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interface. You may now pass a supported --action (or -a) to a cloud provider:
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.. code-block:: bash
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salt-cloud --action stop joyentvm1
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All cloud providers support the destroy command via an action:
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.. code-block:: bash
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salt-cloud -a destroy mymachine1 mymachine2 mymachine2
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Human-Readable States
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=====================
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Most of our cloud providers are accessed via libcloud, which provides a
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numerical code declaring the current state of the machine. This state is
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viewable via the various query options. Unfortunately, if you don't know what
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the codes mean, they're largely useless to you. Now, with the -Q or --query
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option, a human-readable state (i.e. RUNNING) will de displayed instead).
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It should be noted that because some users are running salt-cloud via another
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script, the -F/--full-query and -S/--select-query options still return the
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numerical code.
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Various other Features and Stability Fixes
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==========================================
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The above features addressed many stability issues. Additionally, the following
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have been addressed.
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Salt Cloud requires at least libcloud 0.11.4. If you are not running at least
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this version, an exception will be fired.
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A certain amount of minion configuration is required for all VMs. If you fail
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to specify any, a (mostly empty) minion config will be created for you. The
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default master for this config will be "salt".
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Previously, Joyent supported all Salt Cloud features without using Salt Cloud's
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own built-in deploy function. This is no longer the case, and so the Joyent
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module has been updated appropriately.
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Some log settings where previously ignored. This has been fixed.
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The Rackspace module previously would silently strip certain characters from
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a VM name. It now has a base set of characters that it will verify against, and
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raise an exception if an illegal character was specified. This functionality is
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also available for other cloud providers, but not currently set up for them.
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AWS introduced a new region in Sydney. This region is not available in the
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latest official libcloud release, but if you happen to be running libcloud out
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of trunk, it will be supported by Salt Cloud.
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Additional logging and PEP-8 fixes have also been applied. This should only
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affect developers.
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