Installing Puppet Agent: OS X

Included in Puppet Enterprise 2016.1. A newer version is available; see the version menu above for details.

Note: These instructions describe how to install the open source Puppet agent software on OS X.

Make sure you’re ready

Before installing Puppet agent on any nodes, complete the pre-install tasks and install Puppet Server on your designated Puppet master.

Note: Puppet 4 changes the locations for many of the most important files and directories. If you’re familiar with Puppet 3 and earlier, read a summary of the changes and refer to the full specification of Puppet directories.

Review supported versions

Puppet agent is distributed in a package that includes all of Puppet’s prerequisites. You don’t need to download anything else to install Puppet agent on a node. These packages are tied to a Puppet Collection (PC), which is a set of Puppet 4 software designed and tested to work well together.

We publish and test official puppet-agent installers for the following OS X versions:

  • 10.11 El Capitan
  • 10.10 Yosemite
  • 10.9 Mavericks

Download the OS X puppet-agent package

While the puppet-agent package is the only component of a Puppet Collection available on OS X, you can still use Puppet Collections to ensure the version of package-agent you install is compatible with the Puppet Collection powering your infrastructure.

To download puppet-agent for Puppet Collection 1:

You can also download older versions of Puppet from Browse to <OS X VERSION>/PC1/x86_64 for the most recently released packages. For example, the path to the PC1 package for OS X 10.11 is

Choosing a package

Packages are named according to their puppet-agent version and compatible OS X version. They also contain a release number — typically 1 — that represents the iteration of that version’s package.


For example, the filename for the first release of the puppet-agent 1.4.2 package on OS X 10.11 is:


To see which versions of Puppet, its related tools, and required components are in a given puppet-agent release, as well as release notes for each release, see About Puppet agent.

Previous package names

We used different naming schemes in the puppet-agent 1.2 series before settling on the current convention used since 1.2.5.

  • 1.2.0 through 1.2.2: puppet-agent-<PACKAGE VERSION>-osx-<OS X VERSION>-<ARCH>.dmg. Redundant; OS X only runs on x86_64.
  • 1.2.4: puppet-agent-<PACKAGE VERSION>-<OS X CODE NAME>.dmg. This was too hard for automated tooling to deal with, because OS X’s built-in CLI tools don’t report the code name.

Make sure you can run Puppet executables

The new location for Puppet’s executables is /opt/puppetlabs/bin/, which is not in your PATH environment variable by default.

This doesn’t matter for Puppet services, so enabling or disabling Puppet agent with launchctl works fine. However, to run interactive puppet commands, either add the location to your PATH or refer to the executables by their full locations.

For more information, see our page about files and directories moved in Puppet 4.

Install Puppet

There are three ways to install Puppet on OS X:

Regardless of which method you choose, the puppet and mcollective services launch automatically once they’re installed. You can disable these services with launchctl or by running:

sudo puppet resource service <SERVICE NAME> ensure=stopped enable=false

Installing with the GUI

To install Puppet with a graphic user interface:

  1. Double-click the puppet-agent disk image you downloaded.

    OS X verifies the image, and then mounts it at /Volumes/<DMG NAME>. A Finder window then appears showing the image’s contents: a single puppet-agent-<PACKAGE VERSION>-<RELEASE NUMBER>-installer.pkg file.

  2. Double-click the package file, and then follow the installer prompts.

    Once the installation is complete, the puppet and mcollective services launch automatically.

  3. Unmount the disk image. You can then delete the image.

Installing on the command line

You can use the hdiutil and installer commands to mount the disk image, and then install the package from the command line.

  1. Mount the disk image by running:

    sudo hdiutil mount <DMG FILE>
  2. Locate the .pkg file in the mounted volume and install it by running:

    sudo installer -pkg /Volumes/<IMAGE>/<PKG FILE> -target /
    Once the installation is complete, the `puppet` and `mcollective` services launch automatically.
  3. Unmount the disk image by running:

    sudo hdiutil unmount /Volumes/<IMAGE>

    You can then delete the disk image.

Upgrading with Puppet

If you already have Puppet installed, you can use the puppet resource command to upgrade with fewer steps.

  1. Locate the puppet-agent disk image you downloaded, and note both the filename and its full path on disk.

  2. Have Puppet install the package by running:

    sudo puppet resource package "<IMAGE NAME>.dmg" ensure=present source=<FULL PATH TO IMAGE>

Configure critical agent settings

Set the agent’s server setting to your Puppet master’s hostname. The default value is server = puppet, so if your master’s hostname is already puppet, you can skip this step.

See the list of agent-related settings for more configuration options.

Test Puppet agent

By default, the puppet service performs a Puppet run every 30 minutes. To manually launch and watch a Puppet run, run:

sudo puppet agent --test

Sign certificates on the CA master

As each agent attempts its first run, it submits a certificate signing request (CSR) to the certificate authority (CA) Puppet master. The CA master must sign these certificates before it can manage the agents.

To do this:

  1. Log into the CA Puppet master.

  2. View outstanding requests by running:

    sudo puppet cert list
  3. Sign a request by running:

    sudo puppet cert sign <NAME>

    Once the Puppet master signs an agent’s certificate, the agent regularly fetches and applies configuration catalogs from the master.

Note: The Puppet documentation includes a detailed description of Puppet’s agent/master communications.

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