Migrating Puppet Enterprise: Important notes

This version is out of date. For current versions, see Puppet Enterprise support lifecycle.

Note: A complete list of known issues is provided in the PE release notes. Please review this list before upgrading.

Migrating to PE 2016.4.x from 3.8?

The following changes were made in PE last year. If you’re migrating from 3.8, please review these items before migrating.

Static catalogs enabled by default

A static catalog includes metadata that specifies the desired state of any file resources on a node that has source attributes pointing to puppet:/// locations. This metadata can refer to a specific version of the file, rather than the latest version, and can confirm that the agent is applying the appropriate version of the file resource for the catalog. Also, because the metadata is provided in the catalog rather than calculated by the agent, Puppet runs on the agent finish sooner.

In PE, static catalogs are disabled across all environments for new installations. To use static catalogs in PE, you must enable file sync. See Static Catalogs in Puppet Enterprise for more information.

Major changes to configuration files and directories

Last year in PE, we changed the locations of several important configuration files and directories. For a summary of the changes, see major path changes in PE.

Important notes about PE databases

  • PE 2015.2 eliminated use of the console database (pe-console).

New Puppet language parser

PE 2015.2 included major revisions to the Puppet language and, consequently, the language parser (introduced for testing in PE 3.8). Before upgrading, ensure your Puppet code is compatible with the new parser (previously referred to as the “future parser”).

If you’re upgrading from PE 3.8, you can check your Puppet code against the new parser using the Puppet catalog_preview module. This module allows you to use the Puppet 4 parser in a test environment to ensure it works with your existing Puppet code.

  • The enable_future_parser parameter is deprecated. If you enabled the Puppet 4 language parser in PE 3.8.x via the console, Hiera, or a third-party classification tool, after migrating you must use the console to remove the paramater from the puppet_enterprise::profile::master class.
  • The parser=future setting is no longer valid. If you used this setting in any environment.conf files to enable the parser in PE 3.8.x, you’ll see warning messages during your upgrade. After you upgrade, remove this setting from any environment.conf files.

Nginx replaced Apache as the Puppet Enterprise web server

In PE 2015.2, nginx replaced Apache as the PE webserver. This change was made to enhance security and performance. This change should be mostly transparent to users, except for the following:

  • The webserver user changes from pe-apache (pe-httpd) to pe-webserver.
  • The webserver service changes from pe-httpd to pe-nginx.

Changes to auth.conf when migrating from 3.8

Changes to auth.conf when upgrading

In previous versions of PE, the auth.conf file managed access to Puppet’s HTTPS API. This file was located at /etc/puppetlabs/puppet/auth.conf on the Puppet master. This auth.conf file is no longer supported in PE.

We’ve introduced a new auth.conf (/etc/puppetlabs/puppetserver/conf.d/auth.conf) that makes use of Puppet Server’s trapper-keeper services.

If you are upgrading or migrating to PE 2016.4.x, you must move to this new auth.conf file format. Follow the instructions at Puppet Server Configuration Files: Migrating to the HOCON auth.conf Format.

This upgrade disables puppet_enterprise::master::use_legacy_auth_conf if you have set it in hiera.yaml.

Notable changes and additions made to legacy auth.conf since 3.8.x

Here are some notable changes that have been made to the endpoints in auth.conf between the 3.8.x and PE 2015.2 versions:

3.8 Endpoint Route 2015.2 Endpoint Route
/catalog/ /puppet/v3/catalog/
/node/ /puppet/v3/node/
/report/ /puppet/v3/report/
/file/ /puppet/v3/file/
/v2.0/environments /puppet/v3/environments
/facts/ /puppet/v3/facts/
/resource_type/ /puppet/v3/resource_type/
/certificate/ /puppet-ca/v1/certificate/
/certificate_request /puppet-ca/v1/certificate_request
/certificate/ca /puppet-ca/v1/certificate/ca
/certificate_revocation_list/ca /puppet-ca/v1/certificate_revocation_list/ca

The 2105.2 series also added in the status route at /puppet/v3/status.

In 2016.1.1, two endpoints were added to the new auth.conf:

  • /puppet/v3/environment_classes
  • /puppet/v3/static_file_content

These new endpoints are not compatible with legacy auth.conf files.

Notable changes and additions in auth.conf

Refer to the Puppet Server documentation for more information about the new auth.conf file format.

Hard tabs for indentation in Hiera YAML files cause errors after upgrading

If you’re migrating to PE 2016.4.x, ensure that any Hiera YAML files do not include hard tabs for indentation. Hard tabs in these files will cause errors after upgrading.

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