salt-sproxy 2020.2.0

Install

Install this package where you would like to manage your devices from. In case you need a specific Salt version, make sure you install it beforehand, otherwise this package will bring the latest Salt version available instead.

The package is distributed via PyPI, under the name salt-sproxy.

Execute:

pip install salt-sproxy

Documentation

The complete documentation is available at https://salt-sproxy.readthedocs.io/en/latest/.

Usage

First off, make sure you have the Salt Pillar Top file correctly defined and the proxy key is available into the Pillar. For more in-depth explanation and examples, check this tutorial from the official SaltStack docs.

Once you have that, you can start using salt-sproxy even without any Proxy Minions or Salt Master running. To check, can start by executing:

$ salt-sproxy -L a,b,c --preview-target
- a
- b
- c

The syntax is very similar to the widely used CLI command salt, however the way it works is completely different under the hood:

salt-sproxy <target> <function> [<arguments>]

Usgae Example:

$ salt-sproxy cr1.thn.lon test.ping
cr1.thn.lon:
    True

One of the most important differences between salt and salt-sproxy is that the former is aware of the devices available, thanks to the fact that the Minions connect to the Master, therefore salt has the list of targets already available. salt-sproxy does not have this, as it doesn’t require the Proxy Minions to be up and connected to the Master. For this reason, you will need to provide it a list of devices, or a Roster file that provides the list of available devices.

The following targeting options are available:

• -E, --pcre: Instead of using shell globs to evaluate the target servers, use pcre regular expressions.

• -L, --list: Instead of using shell globs to evaluate the target servers, take a comma or space delimited list of servers.

• -G, --grain: Instead of using shell globs to evaluate the target use a grain value to identify targets, the syntax for the target is the grain key followed by a globexpression: "os:Arch*".

• -P, --grain-pcre: Instead of using shell globs to evaluate the target use a grain value to identify targets, the syntax for the target is the grain key followed by a pcre regular expression: “os:Arch.*”.

• -N, --nodegroup: Instead of using shell globs to evaluate the target use one of the predefined nodegroups to identify a list of targets.

• -R, --range: Instead of using shell globs to evaluate the target use a range expression to identify targets. Range expressions look like %cluster.

To use a specific Roster, configure the proxy_roster option into your Master config file, e.g.,

proxy_roster: ansible

With the configuration above, salt-sproxy would try to use the ansbile Roster module to compile the Roster file (typically /etc/salt/roster) which is structured as a regular Ansible Inventory file. This inventory should only provide the list of devices.

The Roster can also be specified on the fly, using the -R or --roster options, e.g., salt-sproxy cr1.thn.lon test.ping --roster=flat. In this example, we’d be using the flat Roster module to determine the list of devices matched by a specific target.

When you don’t specify the Roster into the Master config, or from the CLI, you can use salt-sproxy to target on or more devices using the glob or list target types, e.g., salt-sproxy cr1.thn.lon test.ping (glob) or salt-sproxy -L cr1.thn.lon,cr2.thn.lon test.ping (to target a list of devices, cr1.thn.lon and cr2.thn.lon, respectively).

Note that in any case (with or without the Roster), you will need to provide a valid list of Minions.