A Technical I.T./DevOps Blog
Problem scenario
You are managing a Puppet master server. You want to find where the site.pp file should be. Where do you look to determine the configuration?
Solution
The result of this command is the canonical answer:
puppet master –configprint manifest
If the above returns “No manifest”, then run this command:
sudo puppet master –configprint all | grep basemodule
One of the paths resulting from the above command could be the answer to your question.
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Problem scenario
You try to connect to Puppet master from Puppet agent for the first time (to get the certificate signed). You run this command: puppet agent -t -d
But you get this error: “Error: Could not send report: SSL_connect returned=1 errno=0 state=error: certificate verify failed:”
What should you do?
Solution
Are you changing the Puppet master for the Puppet agent?
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Problem scenario
In Google Cloud Platform you have a Debian Linux server. You want to install Puppet master on it. What should you do?
Solution
Prerequisites
We suggest having at least 4.5 GB of memory. This can be from RAM or a combination of RAM and swap space. To create 4 GB of /swap/space you can see this posting as a guide,
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Continue reading “How Do You Install Puppet Master on a Debian Linux Server in GCP?”
Problem scenario
You run puppet agent -t -d and get this error:
“Error: /File[/var/lib/puppet/facts.d]: Failed to generate additional resources using ‘eval_generate’: SSL_connect returned=1”
What do you do?
Solution
This is more of a resolution rather than a diagnosis. The error should go away if you follow these steps.
On the Puppet agent node run these commands:
sudo cd /var/lib/puppet/ssl
sudo rm -rf *
sudo puppet agent -t -d
If you cannot find the ssl directory in the above location,
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Problem scenario
You installed Puppet Master on an AWS instance of RedHat Enterprise Linux. (See this link if you want to install Puppet Master.) You now want another AWS instance of RHEL 7.x to be configured as a Puppet Agent node. You want to run a manifest to make sure that this new Puppet Agent node (i.e., server) is working with your Puppet Master server. What do you do to install Puppet Agent 5.x on a RedHat Linux server and configure it to work with Puppet Master?
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Continue reading “How Do You Deploy Puppet Agent to a RedHat Linux Instance in AWS?”
As of 12/1/17 the module to install Docker via Puppet on forge.puppet.com is not working for AWS instances. This known bug is blocking it from working.
[Sassy_Social_Share]Problem scenario
You want to deploy Docker to Ubuntu Linux using Puppet. How do you write a manifest to install Docker an Ubuntu server?
Solution
This solution demonstrates transferring a file with Puppet.
1. Install Puppet master on an Ubuntu Server. See this link if you want directions.
2. Install Puppet agent on a different Ubuntu server. See this
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Continue reading “How Do You Deploy Docker to Ubuntu Linux Servers Using Puppet?”
Update on 12/4/17
If you want to install Puppet Agent 5.x (a much newer version), see this posting instead.
Problem scenario
You installed Puppet Master on an AWS instance of RedHat Enterprise Linux. (See this link if you want to install Puppet Master). You now want another AWS instance of RHEL 7.x to be configured as a Puppet Agent node. You want to run a manifest to make sure that this new Puppet Agent node (i.e.,
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Continue reading “How Do You Deploy Puppet Agent 3.x to a RedHat Linux Instance in AWS?”
Problem scenario
You want to install Puppet Master on RHEL 7.x running in AWS. You only have five minutes to complete this task. How do you install Puppet Master immediately?
Solution
1. Create puppetinstaller.sh in the /tmp directory. It should have the following lines (stop before you get to step #2):
#!/bin/bash
# Written by continualintegration.com
yum -y install ntp
echo ‘
server 0.us.pool.ntp.org
server 1.us.pool.ntp.org
server 2.us.pool.ntp.org
server 3.us.pool.ntp.org’ >>
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Continue reading “How Do You Install Puppet Master on a RedHat Linux Server (an AWS Instance)?”
Problem scenario
You try this command from the Puppet Master server:
service puppetserver restart
But you get this error:
“Failed to restart puppetserver.service: Unit puppetserver.service not found.”
What should you do?
Solution
Do not use “puppetserver” in the command. The correct command is:
service puppetmaster restart
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