This is a how-to guide on using: https://github.com/camptocamp/puppet-ghostbuster First get this working so that you can access this gui dashboard: https://puppet.com/docs/puppetdb/5.1/maintain_and_tune.html#monitor-the-performance-dashboard Install rvm: $ gpg –keyserver hkp://keys.gnupg.net –recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB $ \curl -sSL https://get.rvm.io | bash -s stable –ruby Check rvm install is successful: schowdhury@Shers-MacBook-Pro:~$ rvm –version rvm 1.29.3 (latest) […]

External facts is a great way to attach (arbitrary) metadata to a machine during the the launch of a new machine. E.g. when building a Centos 7 aws ec2 instance, you can generate the external facts via userdata. Puppet can use these external facts in the way as any other […]

You can query the PuppetDB API to identify puppet environments, modules, and classes that are no longer being used. This is handy for housekeeping purposes.

Exported Resources https://docs.puppet.com/puppet/latest/reference/lang_collectors.html https://docs.puppet.com/pe/latest/node_deactivation.html querying puppetdb with postgres command line, psql psql -h localhost -U puppetdb puppetdb However to connect to puppet enterprise’s puppetdb, then follow: https://gist.github.com/tnolet/7133083 \q \h \l \d select * FROM catalog_resources \X \x SELECT * FROM catalog_resourcesSELECT * FROM factsselect * from factsssselect * from reports […]

http://docs.puppetlabs.com/puppetdb/latest/ https://github.com/spotify/puppetexplorer

The fastest way to learn Puppet is to get a full picture of the puppet infrastrucutre. The best way to do to this is if you have a story (aka narrative) to follow along that starts from the puppet basics to the advanced stuff. When you learn something new about […]

The “Puppetfile” is list of all puppet modules you want downloaded into your puppet master’s modules folder: The first line of this file should be: forge “http://forge.puppetlabs.com” After that any puppet forge modules are listed as: mod ‘puppetlabs/stdlib’, ‘4.5.1’ Next any puppet modules hosted on git (e.g. github or any […]

this is common, for example, sometimes once class installs dbg software, and then the next class creates the db istself. class mainclass { include class1 include class2 include class3 include class4 Class[‘class1’] -> Class[‘class2’] -> Class[‘class3’] -> Class[‘class4’] }

So far we have looked at order resources, and ordering classes. Run Stages let you do ordering at a higher level. https://docs.puppetlabs.com/puppet/latest/reference/lang_run_stages.html

When you use the user resource, you’ll notice that it contains a password attribute. This can only be used to enter an encrypted password, aka a hashed password. For security reasons, you cannot use a plain text password. Also for some reason, you can’t use the passwd command to create […]