Puppet HOT! Download Agent

This is the main puppet client. Its job is to retrieve the localmachine's configuration from a remote server and apply it. In order tosuccessfully communicate with the remote server, the client must have acertificate signed by a certificate authority that the server trusts;the recommended method for this, at the moment, is to run a certificateauthority as part of the puppet server (which is the default). Theclient will connect and request a signed certificate, and will continueconnecting until it receives one.

'puppet agent' does its best to find a compromise between interactiveuse and daemon use. Run with no arguments and no configuration, it willgo into the background, attempt to get a signed certificate, and retrieveand apply its configuration every 30 minutes.

Puppet Download Agent

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'--tags' allows you to specify what portions of a configuration you wantto apply. Puppet elements are tagged with all of the class or definitionnames that contain them, and you can use the 'tags' flag to specify oneof these names, causing only configuration elements contained withinthat class or definition to be applied. This is very useful when you aretesting new configurations -- for instance, if you are just starting tomanage 'ntpd', you would put all of the new elements into an 'ntpd'class, and call puppet with '--tags ntpd', which would only apply thatsmall portion of the configuration during your testing, rather thanapplying the whole thing.

'--fingerprint' is a one-time flag. In this mode 'puppet agent' will runonce and display on the console (and in the log) the current certificate(or certificate request) fingerprint. Providing the '--digest' optionallows to use a different digest algorithm to generate the fingerprint.The main use is to verify that before signing a certificate request onthe master, the certificate request the master received is the same asthe one the client sent (to prevent against man-in-the-middle attackswhen signing certificates).

Set the certname (unique ID) of the client. The master reads thisunique identifying string, which is usually set to the node'sfully-qualified domain name, to determine which configurations thenode will receive. Use this option to debug setup problems orimplement unusual node identification schemes.(This is a Puppet setting, and can go in puppet.conf.)

Disable working on the local system. This puts a lock file in place,causing 'puppet agent' not to work on the system until the lock fileis removed. This is useful if you are testing a configuration and donot want the central configuration to override the local state untileverything is tested and committed.

Enable working on the local system. This removes any lock file,causing 'puppet agent' to start managing the local system again(although it will continue to use its normal scheduling, so it mightnot start for another half hour).

Use 'noop' mode where the daemon runs in a no-op or dry-run mode. Thisis useful for seeing what changes Puppet will make without actuallyexecuting the changes.(This is a Puppet setting, and can go in puppet.conf. Note the special 'no-'prefix for boolean settings on the command line.)

Run the configuration once. Runs a single (normally daemonized) Puppetrun. Useful for interactively running puppet agent when used inconjunction with the --no-daemonize option.(This is a Puppet setting, and can go in puppet.conf. Note the special 'no-'prefix for boolean settings on the command line.)

This option only matters for daemons that do not yet have certificatesand it is enabled by default, with a value of 120 (seconds). Thiscauses 'puppet agent' to connect to the server every 2 minutes and askit to sign a certificate request. This is useful for the initial setupof a puppet client. You can turn off waiting for certificates byspecifying a time of 0.(This is a Puppet setting, and can go in puppet.conf. Note the special 'no-'prefix for boolean settings on the command line.)

Warning: Unable to fetch my node definition, but the agent run will continue:Warning: Find my_branch/node/hostname_agent_server?transaction_uuid=fb7c33d0-dab2-4c36-be0a-94870f6fbfcc&fail_on_404=true resulted in 404 with the message: Not Found: Could not find environment 'develop'

How do I fix this?I've made sure that both clocks are at the correct time in the same time zone, I've deleted everything in the agent /var/lib/puppet/ssl directory and resigned, I don't know what else to do.

I have a similar problem.I have set up a vagrant environment with one puppetmaster and several clients. The problem is when I destroy and create the puppetmaster, clients detect the new puppetmaster as an impostor.

So download and install puppet-agent from where you got puppet6-release-jammy.deb The package is ONLY avaliable for 23.04 and 23.10 as you can see on the packages list. So upgrading to 23.04 is an option too. No idea if you can install the 23.04 version into 20.04 (the dependency list seems to be OK)

Puppet is great, and many of our customers use it, often in combination with a Icinga monitoring setup. However, it might happen that the Puppet agent, for some reason, does not run, or does not run properly. If the infrastructure is large enough, that might slip through your fingers. Thus it makes sense to monitor the Puppet client.

Agents are installed on the machines that are to be managed. Puppet works on a pull model, which means that agents periodically query the centralized server for updates. The server compiles these updates in the form of catalogs and sends them back to the agents.

We're almost there. But before you can test your agent, you need to sign its certificate. With the help of certificates, Puppet can check the identity of nodes. It emits these certificates when an agent sends its first request to the server; in the next iterations, the agent then uses the certificate to identify itself.

Puppet uses the server-client architecture, and its clients are called agents. The server is the node that oversees and manages the agents, which are the machines that will be updated using the configuration you create. Agents will periodically make requests to the server in search of updates that, when found, are applied, bringing the agent to the desired state.

Puppet agent is a software application, provided by Puppet labs, which runs on any node in Puppet cluster. If one wants to manage any server using the Puppet master, the Puppet agent software needs to be installed on that particular server. In general, the Puppet agent will be installed on all the machines excluding the Puppet master machine on any given infrastructure. Puppet agent software has the capability to run on most of the Linux, UNIX, and Windows machines. In the following examples, we are using CentOS machine installation Puppet agent software on it.

You can pass installArgs to Chocolatey for several properties. See _agents.html#install_windows_agents for the exact properties. You would pass through the arguments to the installer using 'installArgs'. Here is an example of changing the location of the Puppet Master:

Puppet is usually configured to use a client/server architecture where nodes (agents) periodically connect to a centralized server (master), retrieve configuration information, and apply it. The Puppet master controls the configuration that is applied to each connecting node.

This article covers the basics of administering systems with Puppet using an example of a single master (master.oracle.com) and single agent (agent.oracle.com). To learn more about Puppet, including more-advanced configuration management options, check out the Puppet 3 Reference Manual.

Puppet is available through a single package in the Oracle Solaris Image Packaging System repository that provides the ability to define a system as either a master or an agent. By default, the package is not installed with the Oracle Solaris 11 media, as indicated by the output shown in Listing 1 from using the pkg info command to query the system:

Now that we've installed Puppet, it's time to configure our master and agents. In this article, we will use two systems: one that will act as the Puppet master and another that will be an agent node. In reality, you may have hundreds or thousands of nodes communicating with one or more master servers.

Puppet has been integrated with the Oracle Solaris Service Management Facility configuration repository so that administrators can take advantage of a layered configuration (which helps preserve configuration during updates). Service Management Facility stencils provide seamless mapping between the configuration stored in the Service Management Facility configuration repository and the traditional Puppet configuration file, /etc/puppet/puppet.conf.

Once we have done this, we can test our connection by using the puppet agent command with the --test option, as shown in Listing 6. More importantly, this step also creates a new Secure Sockets Layer (SSL) key and sets up a request for authentication between the agent and the master.

In Listing 7, we can see that a request has come in from agent.oracle.com. Assuming this is good, we can now go ahead and sign this certificate using the puppet cert sign command, as shown in Listing 8:

As you can see in Listing 11, there are 72 resource types that are available on this system currently. Many of these have been made available as part of the core Puppet offering and won't necessarily make sense within an Oracle Solaris 11 context. However, having these resource types means that you can manage non-Oracle Solaris 11 systems as agents if you wish. We can view more information about those resource types using the puppet describe command with the --list option, as shown in Listing 12:

Before we dive into configuring systems, let's use Puppet to query a system based on the resource types we saw in Listing 11 and Listing 12. We will use the puppet resource command with the appropriate resource type. The puppet resource command converts the current system state into Puppet's declarative language, which can be used to enforce configuration on other systems. For example, let's query for the service state of our system by using the service resource type: 006ab0faaa