Puppet/Foreman - adding hosts

This tutorial will provide instructions on puppet on Debian 10 - adding a puppet client.

mkdir /work

cd /work

wget --no-check-certificate https://apt.puppetlabs.com/puppet6-release-xenial.deb

dpkg -i puppet6-release-xenial.deb

apt-get update

apt-get -y upgrade

apt-get -y install puppet

apt-get -y install puppet-agent --allow-unauthenticated

dpkg -i --force-all  /var/cache/apt/archives/puppet-agent*_amd64.deb
apt-mark hold puppet

/opt/puppetlabs/bin/puppet config set server YOURSERVERHERE

/opt/puppetlabs/bin/puppet config set certname  `hostname -f`

vim /etc/puppet/puppet.conf 

• remove master section 
• add [agent] section
• add server= YOURSERVERHERE

cp /opt/puppetlabs/bin/puppet /usr/bin/puppet 

puppet agent --test

Sample output, below:

root@dcae:/work# puppet agent --test

Info: Creating a new RSA SSL key for sbc-de-02.multitel.ro

Info: csr_attributes file loading from /etc/puppetlabs/puppet/csr_attributes.yaml

Info: Creating a new SSL certificate request for sbc-de-02.multitel.ro

Info: Certificate Request fingerprint (SHA256): FD:F3:D1:17:CB:AF:E3:03:55:C4:B4:5E:DC:4C:ED:55:E2:E4:2D:F5:89:36:1A:76:1A:FE:A5:E8:E5:F2:00:21

Info: Certificate for sbc-de-02.multitel.ro has not been signed yet

Couldn't fetch certificate from CA server; you might still need to sign this agent's certificate (sbc-de-02.multitel.ro).

Exiting now because the waitforcert setting is set to 0.

( SHA256 fingerprint modified for security purposes)

1. this will create the local certificates and make itself known to your puppet/foreman server
2. it will complain that certificate is not allowed

SSH into the foreman/puppet server now. 

Run: puppet cert list" on YOURSERVERHERE

Run: puppet cert sign YOURCLIENTHOSTNAMEHERE

Sample output , below:

root@repo55:~# puppet cert list
Warning: `puppet cert` is deprecated and will be removed in a future release.
   (location: /opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/application.rb:370:in `run')
  "dcae.multitel.net" (SHA256) FD:F3:D1:17:CB:AF:E3:03:55:C4:B4:5E:DC:4C:ED:55:E2:E4:2D:F5:89:36:1A:76:1A:FE:A5:E8:E5:F2:00:21
root@foreman:~# puppet cert sign dcae.multitel.net
Warning: `puppet cert` is deprecated and will be removed in a future release.
   (location: /opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/application.rb:370:in `run')
Signing Certificate Request for:
  "dcae.multitel.net" (SHA256) FD:F3:D1:17:CB:AF:E3:03:55:C4:B4:5E:DC:4C:ED:55:E2:E4:2D:F5:89:36:1A:76:1A:FE:A5:E8:E5:F2:00:21
Notice: Signed certificate request for dcae.multitel.net
Notice: Removing file Puppet::SSL::CertificateRequest dcae.multitel.net at '/etc/puppetlabs/puppet/ssl/ca/requests/dcae.multitel.net.pem'
root@repo55:~# 

( SHA256 fingerprint and hostnames modified for security purposes)

Get back to your puppet client machine.

Run "puppet agent --test" - again on server. Should work now

1. if it complains that it's not enabled 
2. run "puppet agent --enable"