HowToLinuxBlog

Here we are installing and configuring puppet 4 server, agent and puppetdb,

Step 1: Install puppet4 server and agent

Follow this link to Install puppet4  server and agent  do not start puppetserver .Once puppetserver is installed properly. Before moving ahead make sure your host name is setup properly.

Step 2 :  Setup host resolution :

vi /etc/hosts

127.0.0.1 localhost
192.168.43.164 puppet puppet.example.testlab

Step 3:  Edit puppet conf file.

Edit ” /etc/puppetlabs/puppet/puppet.conf ” and add below to your puppet.conf file. Remember “dns_alt_names” in conf files should match to your host name and domain as you specified in your hosts/dns file.

[main]
certname = puppet.example.testlab
server = puppet
environment = production
runinterval = 1h

[master]
vardir = /opt/puppetlabs/server/data/puppetserver
logdir = /var/log/puppetlabs/puppetserver
rundir = /var/run/puppetlabs/puppetserver
pidfile = /var/run/puppetlabs/puppetserver/puppetserver.pid
codedir = /etc/puppetlabs/code
dns_alt_names = puppet,puppet.example.testlab
storeconfigs = true
storeconfigs_backend = puppetdb
reports = store,puppetdb
environment_timeout = unlimited

Step4: Create puppetservers certificate

sudo puppet master --no-daemonize --verbose

Press ctrl+c once it has created server certificate properly. cert get installed in ” /etc/puppetlabs/puppet/ssl/ ” directory

Step 5: Installing and Configuring puppetDB

Install postgresql follow this link Here

After installation locate postgresql.conf and add following at the end of file:
$ vi /etc/postgresql/9.5/main/postgresql.conf

listen_addresses = '*'

After that locate  pg_hba.conf file and add or edit following to it in order to accept local and remote connection by postgresql db.
$  vi /etc/postgresql/9.5/main/pg_hba.conf

local all all md5
host all all 127.0.0.1/32 md5
host all all 0.0.0.0/0 md5

Start postgresql service:

$ systemctl start postgresql.service

Create puppet database user and database as follows:

$ sudo -u postgres sh
$ createuser -DRSP puppetdb
$ createdb -E UTF8 -O puppetdb puppetdb
$ exit

You should install the RegExp-optimized index extension pg_trgm. This may require installing the postgresql-contrib (or equivalent) package, depending on your distribution:

$ sudo -u postgres sh
$ psql puppetdb -c 'create extension pg_trgm'
$ exit

Make sure you are able to connect to the database using below:

psql -h localhost puppetdb puppetdb
psql -h puppet.example.testlab puppetdb puppetdb

Install puppetDB :

sudo puppet resource package puppetdb ensure=latest

After puppetDB installation you will able to see various files and directories inside ” /etc/puppetlabs/puppetdb ” go to conf.d directory and edit ”  /etc/puppetlabs/puppetdb/conf.d/database.ini ” add following :

[database]
classname = org.postgresql.Driver
subprotocol = postgresql

# The database address, i.e. //HOST:PORT/DATABASE_NAME
subname = //localhost:5432/puppetdb

# Connect as a specific user
username = puppetdb

# Use a specific password
password = mypassword

# How often (in minutes) to compact the database
gc-interval = 60

# Number of seconds before any SQL query is considered 'slow'; offending
# queries will not be interrupted, but will be logged at the WARN log level.
log-slow-statements = 10

Install puppetdb-terminus:

sudo puppet resource package puppetdb-terminus ensure=latest

Edit routes.yaml file.

puppet master --configprint route_file
vi /etc/puppetlabs/puppet/routes.yaml

Add following routes to it:

---
master:
  facts:
   terminus: puppetdb
   cache: yaml

Add or edit ” /etc/puppetlabs/puppet/puppetdb.conf ” and add following to it :

[main]
server_urls = https://puppet.example.testlab:8081

Make sure the hostname you specify in above url should match to certificate you have for puppetdb inside ” /etc/puppetlabs/puppetdb/ssl/ ”

 openssl x509 -in public.pem -text -noout|grep DNS
 DNS:puppet, DNS:puppet.example.testlab

Step 6: Change ownership of puppet config directory :

sudo chown -R puppet:puppet `sudo puppet config print confdir`

Step 7: Start puppetdb service

systemctl start puppetdb.service

Step 8:Finally start puppetserver :

systemctl start puppetserver.service

Step 9: Test manifests:

Add/edit site.pp file ” /etc/puppetlabs/code/environments/production/manifests/site.pp ”

node default {
  notify {
            "I'm notifying you.":
          }
}

Step 10: Run puppet agent :

If everything is configured properly you should something below.(don’t forget to sign certificates )

puppet agent -tv
Info: Using configured environment 'production'
Info: Retrieving pluginfacts
Info: Retrieving plugins
Info: Caching catalog for puppet.example.testlab
Info: Applying configuration version '1497593520'
Notice: I'm notifying you.
Notice: /Stage[main]/Main/Node[puppet]/Notify[I'm notifying you.]/message: defined 'message' as 'I'm notifying you.'
Notice: Applied catalog in 0.12 seconds

Source : https://docs.puppet.com