When I try to run puppet in foreman, it failed (the error is as above). The reason is that I have not configured to allow the 'puppet kick' to run. Here is how to make it work: 1) Add the following in the [main] section of /etc/puppet/puppet.conf listen = trun 2) Add the following in … Continue reading Puppet kick
Puppet motd template
1) Create the manifest of sys_motd module/etc/puppet/environments/development/modules/sys_motd/manifests/init.ppclass sys_motd { file { '/etc/motd': ensure => file, content => template('sys_motd/motd.erb'), }}2) Create a ERB file as the motd template/etc/puppet/environments/development/modules/sys_motd/templates/motd.erb#################################HOST: <%= fqdn %> OS: <%= operatingsystem %> VERSION: <%= operatingsystemrelease %> ENVIRONMENT: <%= environment %>#################################
Puppet custom facter
In my lab, I added a custom facter 'environment', which tells me the box is in either development or production.Here are the steps1) Create a new module and associated file: /etc/puppet/modules/mylab/lib/facter/environment.rb2) Add the ruby code:# Add puppet facter environmentFacter.add("environment") do setcode do result = case Facter.hostname when /^dev/: "development" else "production" end result endendReference:https://docs.puppetlabs.com/facter/2.2/custom_facts.htmlÂ
Hidden Master DNS
Simply speaking 'Hidden Master DNS' is done by removing the SOA DNS server from the NS records. The common practise is that the company controls their own DNS master or SOA, and uses ISP or other vendors' DNS as secondary or slave. The benifit is to hide the master DNS from public, as generally speaking … Continue reading Hidden Master DNS
Puppet manage individual lines in a file
In my lab, I want to allow the wheel group users to run sudo without typing password. As always, I have done it in puppet. Here is the how to:1) I use resource 'file_line' to do the work. As it is not in not in the default module, I need to install it. Run 'puppet … Continue reading Puppet manage individual lines in a file
