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Puppet – Identifying dead puppet code using puppet ghostbuster

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) […]

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Puppet – External Facts

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 […]

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puppet performance tuning

The latest version of PE 2016.4 has the capability to monitor the heap memory as a feature of puppet server 2.6. https://docs.puppet.com/puppetserver/2.6/status-api/v1/services.html#example-request-and-response-for-a-debug-level-get-request this guide: https://puppet.com/blog/puppet-server-advanced-memory-debugging https://docs.puppet.com/pe/latest/install_multimaster.html https://support.puppet.com/hc/en-us/articles/225049688 https://docs.puppet.com/puppetserver/latest/tuning_guide.html#number-of-jrubies Thundering herd test: After you’ve added hundreds of nodes to your deployment you may notice that your agents are running slow or […]

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Puppet – Using AWS web console as Puppet’s external node classifier (ENC)

This is a script I wrote that queries the ec2 tags of an aws console, in order to figure out what environment a node belongs to, and what class to assign to it. #!/bin/bash # https://docs.puppetlabs.com/guides/external_nodes.html # http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html export AWS_ACCESS_KEY_ID=xxxxxxxxxxxxxxxxxxxxxx export AWS_SECRET_ACCESS_KEY=xxxxxxxxxxxxxxxxxxxxxx export AWS_DEFAULT_REGION=xxxxxxx instanceid=`echo $1 | awk -F”_” ‘{print […]

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Puppet – querying puppetdb with postgres command line (psql)

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 […]

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