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Category Archives: Puppet
Puppet PQL Queries
PQL syntax can be a bit tricky/ugly. It took me some time to figure this out so I thought sharing it isn’t a bad idea. Get all nodes with a specific class in their last catalog This gives us a … Continue reading
Posted in General, Linux, Puppet, Short Tips
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systemd-networkd + wireguard configuration
As mentioned in the previous post, networkd is quite nice for network configurations. It can also configure network devices, such as wireguard tunnels. The following config can go into a .netdev file (like /etc/systemd/network/as3668-1.netdev): The configuration reads the private key … Continue reading
Posted in General, Linux, Puppet
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Puppet control repo layout for puppet apply and agent/server Setup
The control repository in a Puppet context is usually a git repository that contains your Puppetfile. The Puppetfile has links to all modules in your environment and their version that shall be deployed. Besides the Puppetfile, Hiera data is often … Continue reading
Vox Pupuli Tasks – The solution to manage your git modules!
Who is not aware of the following problem. It’s Sunday afternoon, you’re bored. You want to do something useful, you want to contribute to the community – you want to review a pull request! This might be a more or … Continue reading
Posted in General, Linux, Puppet
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Vox Pupuli – Code of the Week 2
This is a new blog series that we would like to introduce. At Vox Pupuli, we receive many Pull Requests. We receive so much awesome code, that isn’t really appreciated. In the past, some of our members sent out tweets if … Continue reading
Vox Pupuli – Code of the Week 1
This is a new blog series that we would like to introduce. At Vox Pupuli, we receive many Pull Requests. We receive so much awesome code, that isn’t really appreciated. In the past, some of our members sent out tweets … Continue reading
Short Tip: Installing msgpack on outdated boxes (ruby1.9.1)
I’m using msgpack to serialize the data between my puppet agents and the masters. Recently I had to puppetize an old Debian Wheezy box. I’ve to install msgpack in advance: # gem install msgpack Building native extensions. This could take … Continue reading
Posted in General, Linux, Puppet, Short Tips
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rubocop-rspec magic: Fixing RSpec/InstanceVariable
We recently introduced RSpec/InstanceVariable into our RuboCop configuration at Vox Pupuli. Using instance variables is not considered best practice so we are currently migrating away from them. Here is en example of the old code style: The variables are later … Continue reading
Posted in General, Linux, Puppet
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Create a simple streaming replication for postgres with puppet
I need to build a postgres setup for a important database. The idea is to one master and one-many slaves that can serve read only access. The slaves will work in a hot-standby mode where they continuously receive data from … Continue reading
Posted in General, Linux, Puppet
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Create ssh keys with puppet on a server + pubkey exchange
There are a few solutions to generate ssh keys on a puppet master/server or copy them from hiera to a box. I have got several boxes and every box needs to have ssh access to every other box. I don’t … Continue reading
Posted in General, IT-Security, Linux, Puppet
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