In the existing host download this script: foreman_client_centos7.sh

PUPPETMASTER="cld-foreman.cloud.pd.infn.it"

# start with a subscribed RHEL7 box
rpm -Uvh https://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm
rpm -Uvh https://yum.puppetlabs.com/el/7/products/x86_64/puppetlabs-release-7-12.noarch.rpm
yum clean all

# install dependent packages
yum install -y augeas puppet git policycoreutils-python

# Set PuppetServer
augtool -s set /files/etc/puppet/puppet.conf/agent/server $PUPPETMASTER

# Set Environment
augtool -s set /files/etc/puppet/puppet.conf/agent/environment production

# Set ca cert
augtool -s set /files/etc/puppet/puppet.conf/agent/ca_server $PUPPETMASTER

# Set cert name
augtool -s set /files/etc/puppet/puppet.conf/agent/certname `hostname -f`

# Puppet Plugins
augtool -s set /files/etc/puppet/puppet.conf/main/pluginsync true

# Allow puppetrun from foreman/puppet master to work
augtool -s set /files/etc/puppet/puppet.conf/main/listen true

# Allow execution of puppetrun button from puppet master 
num=$(awk 'END { print NR }' /etc/puppet/auth.conf)
lunum=`expr $num - 4`
sed -i "$lunum i\ \n#added to allow execution of puppetrun button\npath /run\nauth any\nmethod save\nallow $PUPPETMASTER\n" /etc/puppet/auth.conf
# for older versions of puppet, also need to "touch /etc/puppet/namespace.auth"

# check in to foreman
puppet agent --test
sleep 1
puppet agent --test

systemctl start puppet

systemctl enable puppet

If some warnings or errors (like Exiting; no certificate found …) have been thrown, doesn't care of their.

Remember to give the executable permission to the script and launch it as root user:

chmod +x foreman_client_centos7.sh
./foreman_client_centos7.sh

In the existing host download this script: foreman_client.sh

PUPPETMASTER="cld-foreman.cloud.pd.infn.it"

# start with a subscribed RHEL7 box
rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
rpm -Uvh https://yum.puppetlabs.com/el/6/products/x86_64/puppetlabs-release-6-7.noarch.rpm
rpm -Uvh http://mirror3.mirror.garr.it/mirrors/scientific/6x/x86_64/os/Packages/yum-utils-1.1.30-14.el6.noarch.rpm
yum-config-manager --enable rhel-6-server-optional-rpms
yum clean all

# install dependent packages
yum install -y augeas puppet git policycoreutils-python

# Set PuppetServer
augtool -s set /files/etc/puppet/puppet.conf/agent/server $PUPPETMASTER

# Set Environment
augtool -s set /files/etc/puppet/puppet.conf/agent/environment production

# Set ca cert
augtool -s set /files/etc/puppet/puppet.conf/agent/ca_server $PUPPETMASTER

# Set cert name
augtool -s set /files/etc/puppet/puppet.conf/agent/certname `hostname -f`

# Puppet Plugins
augtool -s set /files/etc/puppet/puppet.conf/main/pluginsync true

# Allow puppetrun from foreman/puppet master to work
augtool -s set /files/etc/puppet/puppet.conf/main/listen true

# Allow execution of puppetrun button from puppet master 
num=$(awk 'END { print NR }' /etc/puppet/auth.conf)
lunum=`expr $num - 4`
sed -i "$lunum i\ \n#added to allow execution of puppetrun button\npath /run\nauth any\nmethod save\nallow $PUPPETMASTER\n" /etc/puppet/auth.conf
# for older versions of puppet, also need to "touch /etc/puppet/namespace.auth"

# check in to foreman
puppet agent --test
sleep 1
puppet agent --test

/etc/init.d/puppet start

chkconfig puppet on

If some warnings or errors (like Exiting; no certificate found …) have been thrown, doesn't care of their.

Remember to give the executable permission to the script and launch it as root user:

chmod +x foreman_client.sh
./foreman_client.sh

On the puppet master node run these commands:

puppet cert sign --all
/etc/init.d/puppet restart
/etc/init.d/foreman-proxy restart

On the foreman node run this command:

/etc/init.d/foreman restart

In our case the foreman and the puppet master node is the same host: cld-foreman.cloud.pd.infn.it

The new host should appear in the Host tab of the web application.