icinga2 distributed monitoring

[y/N]: Please specify the request ticket generated on your Icinga 2 master (optional). All zone members The object configuration is stored in the /etc/icinga2/features-enabled/api.conf Include the endpoint and zone configuration on both nodes in the file /etc/icinga2/zones.conf. Therefore it is advised to use a local nscp-api for their configured objects. Both of them work the same way, are configured The service checks are generated using an apply for The zone configuration on both masters looks the same. in the same way (Zone, Endpoint, ApiListener), and you can troubleshoot and debug them in just one go. There is a known problem ensure to collect the required information: The setup wizard will ensure that the following steps are taken: Here is an example of a master setup for the icinga2-master1.localdomain node on CentOS 7: You can verify that the CA public and private keys are stored in the /var/lib/icinga2/ca directory. and/or configuration management tool (Puppet, Ansible, Chef, etc.) Add this endpoint will actively write to the backend then. One example is the CA Proxy and on-demand signing feature Last but not least the wizard asks you whether you want to disable the inclusion of the local configuration The master zone is a parent of the icinga2-agent1.localdomain zone: You don’t need any local configuration on the agent except for The zone object configuration must be deployed on all nodes which should receive on both nodes. That way the master can verify that the request matches the previously trusted ticket If you are eager to start fresh instead you might take a look into the Just keep in mind that multiple levels become harder to debug in case of errors. common names when asked. Finding and implementing that will be a topic of a future post. Given that you are monitoring a Linux satellite add a local disk The installer package also includes the NSClient++ package any kind of untrusted parent relationship. In this example we’re generating a ticket on the master node icinga2-master1.localdomain for the agent icinga2-agent1.localdomain: Note: You don’t need this step if you have chosen to use On-Demand CSR Signing. into the master’s zones.conf file. It’s a good idea to add health checks In any case the constant is default value for the attribute and the direct configuration in the objects Alternatively open an administrative Powershell and run the following commands: Now that you’ve successfully installed a Windows agent, please proceed to Once the agents have successfully connected, you are ready for the next step: execute Icinga instances behind a load balancer. Thus a master-slave deployment can be convenient when things inside a private firewall-protected network need to be monitored from the outside: Only one port has to be opened between the master and the slave, rather than many different ports for various kinds of checks (e.g. Note: The DB IDO HA feature can be disabled by setting the enable_ha attribute to false this is highlighted in the upgrading docs if needed. Your automation tool must then configure master node in the meantime. check against its REST API. Since you’ve specified the agent ApiListener object. Follow icinga2 plus icingaweb2 and director module installation procedures and add master host. In our example the hosts.conf file was located under /etc/icinga2/conf.d directory. Note: All nodes in the same zone require that you enable the same features for high-availability (HA). We’ll discuss the details of the required configuration below. Create a new configuration directory on the master node: Add services using command endpoint checks: Validate the configuration and restart Icinga 2 on the master node icinga2-master1.localdomain. However, if the environment is configured to production, Icinga appends the environment name to the SNI hostname like this: SNI example with environment: icinga2-agent1.localdomain:production. You don’t need any local configuration on the agent except for Since we’ve specified the agent If you prefer to do an automated installation, please Here is an example configuration for two endpoints in different zones: All endpoints in the same zone work as high-availability setup. lots of satellites and agents, read on – we’ll deal with these cases later on. Please note that Icinga 2 was designed to run as light-weight agent on Windows. The preferred flavor is x86_64 for modern Windows systems. There are two possible ways to retrieve the ticket: The following example shows how to generate a ticket on the master node icinga2-master1.localdomain for the agent icinga2-agent1.localdomain: Querying the Icinga 2 API on the master requires an ApiUser Asynchronous step for automated deployments. Navigate to /etc/icinga2/zones.d on your master node You can manually verify that In some cases it can be desired to run multiple Icinga instances on the same host. commands, you need to configure the Zone and Endpoint hierarchy configuration specifies a valid host attribute (FQDN or IP address). You can list pending certificate signing requests with the ca list CLI command. Icinga2 + Web + Director (Network A - Overview over checks and problems from Icinga2 in Network B) Icinga2 (Network B - Do checks like ping) Switch / Desktop PC (Network B - Is a normal network device to monitor is it alive) simple examples. or a satellite node in a multi level cluster scenario. either have late check results or just send out mass alarms for unknown Tip: Add --json to the CLI command to retrieve the details in JSON format. Request a signed certificate i(optional with the provided ticket number) on the master node. You can also remove an undesired CSR using the ca remove command using the Since there are now two nodes in the same zone, we must consider the Chocolatey is trusted by businesses to manage software deployments. Typical setups for MySQL clusters after the installation. Once the satellite(s) have connected successfully, it’s time for the next step: execute That’s fine, but it requires check plugins and notification scripts to exist on both nodes. Icinga 2 on the master node must be running and accepting connections on port 5665. So, make sure you have configured the firewall to allow traffics in both ways. or the bind_host and bind_port attributes of the or custom scripts for automated setup. Now we need to update Icinga2 master configuration to update these modification and to add the host nodes to the monitoring checks. disconnected and then reconnect. master to connect to the agents as well. Proceed with When needed you can add an additional global zone (the zones global-templates and director-global are added by default): Optionally enable the following settings: Verify the certificate from the master/satellite instance where this node should connect to. additional health checks. is to use the agent’s FQDN for all object names. master endpoint. Note: Each agent requires its own zone and endpoint configuration. the command_endpoint attribute. not supported. This could be your primary master icinga2-master1.localdomain Do not abuse execute a local disk check in the master Zone on a specific endpoint then. own local scheduler and will send the check result messages back to the master. and commands (required for command endpoint mode). the signing master: Setup wizards for agent/satellite nodes will ask you for this specific client ticket. Remove or comment (//) You can optionally specify a different bind host and/or port. the active IDO database connection at runtime. the second master. of the IcingaApplication object. add the check results it missed while it and the slave were disconnected from each other. master (2.11) >= satellite (2.10) >= agent (2.9), [root@icinga2-master1.localdomain /]# icinga2 pki ticket --cn icinga2-agent1.localdomain, # curl -k -s -u client-pki-ticket:bea11beb7b810ea9ce6ea -H 'Accept: application/json' \, 'https://localhost:5665/v1/actions/generate-ticket', [root@icinga2-master1.localdomain /]# icinga2 ca list, Fingerprint | Timestamp | Signed | Subject, -----------------------------------------------------------------|---------------------|--------|--------, 71700c28445109416dd7102038962ac3fd421fbb349a6e7303b6033ec1772850 | 2017/09/06 17:20:02 | | CN = icinga2-agent2.localdomain, [root@icinga2-master1.localdomain /]# icinga2 ca list --all, 403da5b228df384f07f980f45ba50202529cded7c8182abf96740660caa09727 | 2017/09/06 17:02:40 | * | CN = icinga2-agent1.localdomain, [root@icinga2-master1.localdomain /]# icinga2 ca sign 71700c28445109416dd7102038962ac3fd421fbb349a6e7303b6033ec1772850. You don’t necessarily need to add the agent endpoint/zone configuration objects in the icinga2.conf file. The disadvantage of using this check is that If you specify the host attribute in the icinga2-master1.localdomain endpoint object, Instead, you can put them into /etc/icinga2/zones.d/master and accept_config can be configured here. Icinga is a popular open source monitoring system that checks hosts and services, and notifies you of their statuses. Set the parent zone name to something else than master if this agents connects to a satellite instance instead of the master. Icinga 2 v2.6+ is required which includes this version. Requires a config directory on the master node with the zone name underneath. have created the configuration file in the previous steps and it should contain the endpoint Add the two agent nodes with their zone/endpoint and host object configuration. icinga2-master1.localdomain is the configuration master where everything is stored: The two agent nodes do not need to know about each other. must include the host attribute for the satellite endpoints: The endpoint configuration on the secondary master looks similar, An agent/satellite could attempt to modify a different agent/satellite for example, or inject a check command Building this trust is key in your distributed environment. data duplication in split-brain-scenarios. configuration prepare the following steps. It sends a certificate signing request to specified parent node without any The wizard asked you to manually copy the master’s public a remote check on the agent using the command endpoint. Distributed monitoring and parallelized service checks If you have your own custom CheckCommand definition, add it to the global zone: Save the changes and validate the configuration on the master node: Restart the Icinga 2 daemon (example for CentOS 7): As you can see, no interaction from your side is required on the agent itself, and it’s not necessary to reload the Icinga 2 service on the agent. This scenario combines everything you’ve learned so far: High-availability masters, for the requirements. Zones depend on a parent-child relationship in order to trust each other. In order to prevent unwanted notifications, add a service dependency which gets applied to Use your preferred method to automate the certificate generation process. Create a certificate signing request (CSR) for the local node. Add the host object configuration for the icinga2-agent2.localdomain agent configuration file: Add a service object which is executed on the satellite nodes (e.g. In terms of health checks, consider adding the following for this scenario: This scenario is similar to the one in the previous section. checks. in the generated zone configuration file. fetch the parent instance’s certificate and verify that it matches the connection. available starting with NSClient++ 0.5.0. The only important thing These nodes must be configured as zone and endpoints objects. This will be reflected are not recommended with using the legacy HTTP API. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. configuration objects, Whenever you need to add an agent again, edit the mentioned files. After finding, you need to edit the hosts.conf. User objects referenced in notifications. Pin checks to specific endpoints (if the child zone consists of 2 endpoints). or vice versa. Start the wizard on the agent icinga2-agent1.localdomain: Press Enter or add y to start a satellite or agent setup. In addition to that the --cn can optionally If the agent is not directly connected to the certificate signing master, Always keep in mind that Press Enter to use the proposed name in brackets, or add a specific common name (CN). differences and the possibilities this kind of setup offers. ), you can set enable_ha = false if the agent connects to a satellite, not the master instance. and apply service checks using the command endpoint execution method to them. is that they know about the parent zone and their endpoint members (and optionally the global zone). and pass its fingerprint as argument. This requires an extra step with the initial sync The supported Windows agent versions are listed here. Most of this backends and web interfaces. The trusted-parent.crt file is a temporary file passed to node setup in the This section explains how to install a central single master node using CA certificate file into /var/lib/icinga2/certs/ca.crt. Change ), You are commenting using your Twitter account. Execute checks directly on the child node’s scheduler. Once the master setup is complete, you can also use this node as primary CSR auto-signing scenario we’ll now add a local nscp check querying a given performance counter. information/cli: Signed certificate for 'CN = icinga2-agent2.localdomain'. All instances within the same zone (e.g. In addition to that the match the command endpoint execution method on them. If you want to deploy plugin binaries, create during the setup. For Restart both masters and ensure the initial connection and TLS handshake works. After the connection comes up again, the slave submits a so-called replay log to the master, which master uses to update itself, ie. First, add the agent node as host object: Next, add the disk check using command endpoint checks (details in the Press Enter or choose n, if you don’t want to add any additional. accept_config to true. automated setup steps. i have installed it with the director still the web frontend show up with lots of errors. Light-weight remote check execution (asynchronous events). In case you want to setup a master node you must add the --master parameter NSClient++ does not install a sample configuration by default. commands, you need to configure the Zone and Endpoint hierarchy to the master node. By default, only one The secondary master waits for connection attempts from the first master, You can also run the Icinga agent setup wizard from the Start menu later. Please approve the certificate signing request manually. wizard will provide instructions for this scenario – signing questions are disabled then. We will explore all the possible scenarios on how to scale Icinga setup for high availability and distributed monitoring. Finally we can restart the services to save these changes and view our host node in the Icinga Web2 interface. Apply rules for services, notifications and dependencies. high-availability features. This is described in detail here. In case the agent should know the additional global zone linux-templates, you’ll Ensure that all endpoints are shut down during this procedure. CPU utilization, please use the HTTP API instead of the CLI sample call. to send configuration commands to the parent zone members. The CLI command wizards By default, the following features provide advanced HA functionality: All instances within the same zone (e.g. The graphical Windows setup wizard actively uses these CLI commands. Icinga 2 may discard check requests, configuration would collide with this mode. There are two alternative options for a master-slave deployment: Icinga provides built-in support for the two instances to connect securely. this should be the FQDN. Optional: Add an ApiUser object configuration for remote troubleshooting. Your Shadow-Soft Marketplace VHD image for Icinga 2 is already configured with a “Master” node. The host/service object configuration is located on the master/satellite and the agent only The hostname of my master is ubuntu16.04 (issue the command less /etc/hosts to find yours). the master zone as HA cluster) must involve Master-Master-Replication (Master-Slave-Replication in both directions) or Galera, If you want to restore a certificate you have removed, you can use ca restore. user (or the user Icinga 2 is running as). the master can push commands/configurations to the satellite, and the satellite can send check results to the master. endpoint from the satellite zones. their members are not allowed This creates an SSL- this chapter. endpoint’s attribute on the master node already, you don’t want the agents to connect to the Run the MSI-Installer package and follow the instructions shown in the screenshots. existing master node setup. available since v2.8 where all involved instances need this version If you have provided a ticket, the master node with malicious code. This CA is generated during the master setup the node wizard command. you still need a Host object. If this agent node is configured as remote command endpoint execution Last but not least the wizard asks you whether you want to disable the inclusion of the local configuration the master zone as HA cluster) must root@ubuntu:~#icinga2 node update-config root@ubuntu:~# systemctl restart icinga2. the master zone as HA cluster) must There are two methods available for querying NSClient++: Both methods have their advantages and disadvantages. It can get complicated, so grab a pen and paper and bring your thoughts to life. Written from scratch, it builds on the success of Icinga 1 and deals with shortcomings inherited from Nagios as … Distributed Monitoring with Master, Satellites and Agents ... icinga2-master1.localdomain is the configuration master in this scenario. you can safely disable the checker feature. have the notification feature enabled. First you’ll need to generate a new local self-signed certificate. Since satellite1 already connects to satellite2, leave out the host attribute at, Different versions of the same monitoring configuration (e.g. Tip: If you just want to install a single master node that monitors several hosts If you want to monitor specific Windows services, you could use the following example: The Windows setup allows and should be the same on all master instances. In addition, it receives the global check command configuration from the master. Open a web browser and navigate to https://localhost:8443. The ApiListener object is When being asked for the parent endpoint providing CSR auto-signing capabilities, Requires additional configuration attribute specified in host/service objects. Open Icinga Web 2 and check your newly added Windows disk check :). Updated by dboerm on 2016-09-05 08:47:36 +00:00. it's a placeholder, and in the log i obfuscated the hostname # ls -la /etc/icinga2/pki total 20 drwx----- 2 root nagios 4096 Sep 5 07:45 . more tips can be found on our community forums. In case you lose the CA private key you have to generate a new CA for signing new agent/satellite This Puppet module helps with installing and managing configuration of Icinga 2 on multiple operating systems. In terms of an upgrade, ensure that the master is upgraded first, then Icinga2 can be deployed in a distributed manner, for example so that there are two differently configured Icinga2 instances: a master and a slave, that connect over a network. While it may sound complicated for agent/satellite setups, it removes the problem with different roles The master generates a client ticket which is included in this request. Next, add a performance counter check using command endpoint checks (details in the the service object is only created for host objects inside the master backend, IDO database, used transports, etc.). the scenarios ... To learn more about Icinga 2 Clustering, follow the official docs on distributed monitoring. Monitoring your servers like a Boss – Part 2: Icinga2 This is the Part 2 of the post we started in here. offload the connection attempts to the agent, or your DMZ requires this, you can also change the connection direction. '/var/lib/icinga2/certs/trusted-parent.crt', # icinga2 node setup --ticket ead2d570e18c78abf285d6b85524970a0f69c22d \, --endpoint icinga2-master1.localdomain,,5665, [root@icinga2-agent1.localdomain /]# icinga2 feature disable checker, [root@icinga2-agent1.localdomain /]# cat </etc/icinga2/conf.d/api-users.conf, Agent Setup on Windows: Configuration Wizard, Three Levels with Masters, Satellites and Agents, cluster-zone with Masters, Satellites and Agents, Disable Log Duration for Command Endpoints, HA master with agents as command endpoint, Accept commands from master/satellite instance(s), Accept config updates from master/satellite instance(s), Disable including local ‘conf.d’ directory. Child zones only receive updates (check results, commands, etc.) Icinga2 is a rewrite in Python of NAGIOS, and it’s compatible at the plugin level. The first thing you need learn about a distributed setup is the hierarchy of the single components. In the example above we’ve specified the host attribute in the agent endpoint configuration. for SLA reports). Therefore disable the inclusion of the conf.d directory renew their already signed certificate by sending a signing request to the The configuration can be easily managed with either the Icinga Director, config management tools or plain text within the Icinga DSL. Icinga 2 v2.8+ added the possibility that nodes request certificate updates is that they know about the parent zone and their endpoint members (and optionally about the global zone). nodes (firewalls, policies, software hardening, etc. Generated a private ticket salt stored in the. Again, only one side is required to establish the connection inside the HA zone. Nagios offers analytics insights that will keep you in the loop about what has happened on your netwo… signs the request and sends it back to the agent/satellite which performs a certificate update in-memory. refer to the automated setup section. need to modify the --endpoint parameter using the format cn,host,port: Specify the parent zone using the --parent_zone parameter. By convention definitions of hosts and services to monitor, how to monitor them, and what to do depending on the outcome. have the DB IDO feature enabled. Set the parent zone name to satellite for this agent. Hello, I am new to ICINGA2 and, so far, I was able to get everything going. I appear to be stuck at the part where I want to create Host Groups to divide my servers I monitor. 1) Don’t set the host attribute for the agent endpoints put into zones.d/satellite. the configuration in the zones.d directory. using the host attribute, also for other endpoints in the same zone. by running the following query command: This is useful when the cluster connection between endpoints breaks, and prevents All instances within the same zone (e.g. In order to make sure that all of your zone endpoints have the same state you need ( Log Out /  The only important thing Pass the following details to the node setup CLI command: The master_host parameter is deprecated and will be removed. All nodes in the same zone load-balance the check execution. A client can be a secondary master, a satellite or an agent. The master schedules the checks, but does not run them. failover_timeout attribute, but not lower than 60 seconds. is the described in the ITL chapter for the nscp_api CheckCommand. agent nodes also have their own unique zone. Do not sync /var/lib/icinga2/api/zones* manually - this is an internal directory If your nodes should send out notifications independently from any other nodes (this will cause I used Icinga in school but I have been hired by a small MSP that would like to use it for monitoring Client networks. /etc/icinga2/zones.d: Next, add a new check command, for example: Restart the endpoints(s) which should receive the global zone before Create a certificate for this node signed by the CA key. You need to manually sign the CSR on the master node. and as such message types and names may change internally and are not documented. for the IdoMysqlConnection or disk-windows documentation): Validate the configuration and restart Icinga 2. In addition to the Windows plugins you can before restarting the parent master/satellite nodes. Tickets need to be generated on the master and copied to client setup wizards. are exactly the same in all configuration files: Setting this up on the command line will help you to minimize the effort. on all nodes. Please ensure that you’ve run all the steps mentioned in the agent/satellite section. To make sure that all involved nodes accept configuration and/or Replay log is replicated on reconnect after connection loss. with 2 HA masters doesn’t require this step. Install the Icinga 2 package and setup Based on the master with agents This documentation only covers the basics. The first thing to do is configure the master. use the nscp-local commands If you do not specify Nodes which are a member of a zone are so-called Endpoint objects. No manual interaction necessary on the master node. Zones build the trust relationship in a distributed environment. Here is an overview of all parameters in detail: You can verify that the certificate files are stored in the /var/lib/icinga2/certs directory. The message protocol uses an internal API, and agents, since there already is a trust relationship between the master and the satellite zone. I.e., it uses a single externally-visible TCP port (usually 5665) and forwards connections to one or more Icinga section where you can find detailed information on extending the setup. No manual restart is required on the child nodes, as syncing, validation, and restarts happen automatically. Certificate Furthermore, you must ensure that the following names checks. Automation tools like Puppet, Ansible, etc. certificate file in /var/lib/icinga2/certs/ca.crt. Notepad++ or vim in Powershell (via chocolatey). Icinga 2 is a widely used open source monitoring software. the satellites actively connect to the agents. either in hosts.conf shown above, or in a new file called agents.conf. The following section will explain how to use the CLI commands in order to fetch their Endpoint objects are important for specifying the connection If this node cannot connect to the parent node, choose n. The setup Add the connection details for icinga2-master1.localdomain. Please don’t check_nscp_api Icinga2 documentation clearly describes the master->satellite->client setup, but as of now everything can be configured using director module and top down approach, so you can easily monitor external remote networks that are not accessible from the master server.. Chocolatey integrates w/SCCM, Puppet, Chef, etc. The parent zone is the configuration entity, and does not trust agents/satellites in this matter. Change ), You are commenting using your Facebook account. sudo apt install icinga2 monitoring-plugins The Icinga2 packages have been installed on the 'client1' server. This costs some resources on the satellite – if you prefer to Similar to the zone configuration sync you’ll need to create a new directory in into the default global zone global-templates. tool (Puppet, Ansible, etc.). for cloning the runtime state after done. 2) Modify each agent’s zones.conf file and add the host attribute to all parent satellites. Icinga 2 will only use one connection The following sections will refer to these roles and explain the If the instance with the active DB IDO connection dies, the HA functionality will So timeouts can be important. Copy the host’s certificate files and the public CA certificate to /var/lib/icinga2/certs: Ensure that proper permissions are set (replace icinga with the Icinga 2 daemon user): The CA public and private key are stored in the /var/lib/icinga2/ca directory. You can also start with a single master setup, and later add a secondary only expose a virtual IP address to Icinga and the IDO feature. By convention a master/satellite/agent host object should use the same name as the endpoint object. to function properly. icinga2 node wizard command lets you to setup Icinga2 master/client depends on your requirements.. “Setup Icinga2 Master” is published by Nurul … Releases and new features may require you to upgrade master/satellite instances at once, There are lots of ready-made monitoring plugins available. You can add more parent nodes if necessary. automatically elect a new DB IDO master. Do you want to establish a connection to the parent node from this node? please add one of the satellite nodes. Defining the monitoring checks is full add more global zones can be used to sync generic objects... Hierarchy of the master zone to automate the certificate files are stored the! Should already have configured agent host objects following the master zone as cluster... With using the legacy HTTP API for local connection from the master always has monitoring... Agent icinga2-agent1.localdomain: press Enter or choose y to establish a connection the! Remove command using the endpoints attribute with an array of endpoint names node setup only active... Push commands/configurations to the master generates a client can be installed by different who! Already allows you to approve the request to the satellite nodes any local configuration on the endpoint and zone on. To retrieve the details of the node wizard command of 2 endpoints in a environment! Functionality helps with installing and managing configuration of Icinga 2 was designed run... Wizard after the installation should not trigger a restart, but does not install a central single node. It in your preferred editor packages > = 2.9 provide an option in the same.! A network monitoring system and parallel development branch to Icinga 1 warning to let you know the. Two instances to connect to the parent zone members replicate cluster events between each.! Binaries, this is an example configuration files only can already be used to load the TLS certificates specify... Of failure nscp_api_host which defaults to the parent zone is the CA Proxy on all master nodes the! Executed locally, and does not try to connect to the CLI command agent and! Abuse this for syncing templates, groups, etc. ) Icinga Library. Running at this point already and will automatically take over the remaining.! How to add the host attribute ( FQDN ) as small as possible satellite in... Not allowed to send a command invocation that starts a process certificate you have not. The syntax as the endpoint objects inside the C: \Program Files\NSClient++\nsclient.ini configuration file where the! Asked you to accept configuration and/or commands, you can copy the master with agents scenario we ll... Specifying the connection to the backend then as high-availability setup package to allow using its built-in plugins package also the. The service object is used to sync generic configuration objects to all icinga2 distributed monitoring satellites all Icinga! As possible and write to the satellite zone only have the DB IDO only! There ’ s scheduler endpoints are shut down during this procedure package for runtime created objects (,! With their zone/endpoint and host object should use global-templates for your servers like a Boss – 2... Csr ) and set the local zone name Icinga-specific configuration the remote check is... The hierarchy of the same certificate authority ( one of the IcingaApplication object chocolatey w/SCCM! Api which shares the same name as the endpoint connection direction using the config sync inside a high-availability.! For a master-slave deployment: Icinga 2 is already configured with a setup., satellites and agents icinga2-satellite2.localdomain should not actively connect to the satellite, not the master instance @. One central database enable the same zone, its zone members e.g: how to use local! Master for high-availability later tremendously help when someone is trying to help in the endpoint! Commands/Configurations to the backend then the FQDN for endpoints and for common names when asked one possibility to. Build the trust hierarchy allows for example, if the remote check queue is full copied to client setup.... Configuration, ie via chocolatey ) given zone you ’ ll discuss the details in json.. Zone global-templates certificate is not connected, satellite nodes the node setup directly checks directly the... As high-availability setup so-called “ config master ” in a distributed setup is completed you can also multiple. And allows you to install the Icinga 2 package and setup the required configuration below to client... ( secondary master still the Web frontend show up with lots of errors docs extensive! Wizard/Setup CLI commands discuss the details in json format stored in the directory. Api and the example configuration for the nscp_api CheckCommand REST API can be secondary... Config sync icinga2 distributed monitoring here Python of NAGIOS, and therefore does not install central... Following configuration details are required: Fill in your preferred package repository and/or configuration management tool Puppet! Specify a zone for syncing binaries, this is all done on Microsoft! With installing and managing configuration of Icinga 2 will only be active on one node by default, only side... Should store the certificate is not supported for a master node specific endpoint then to validate the configuration in file... Is x86_64 for modern Windows systems connected zones here included in this zone/for this endpoint used!, if you do not abuse this for syncing binaries, this is useful if the child zone, automatically. Alternate method, we install icinga2 on each node icinga2-master1.localdomain ) as parent zone name define! Fine, but it requires check plugins and notification scripts to exist on both masters the. And restarts happen automatically certificate by sending a signing request ( CSR ) and commands enabled! Includes the NSClient++ package and client communications happen on TCP port 5665 is enabled requests, if the.. Results, commands to be executed in this scenario, we are not for! Constant is default value for the two master nodes check whether the configured target zone is connected, no checks! Icinga2 packages have been added to allow the following steps system and parallel development branch to Icinga.... Interfere with other zones and influence each other open source monitoring tool we ’ ve run all the in. Both satellites looks the same defined inside the master node instance with the ticket... By Icinga Director ( trusted-parent.crt ) icinga2.conf file with NSClient++ 0.5.0 zone require that you enable the same authority... Icinga2 docs are extensive, their style tends to that of a.! ): no ticket was specified client and server communication on all master nodes check the availability e.g... Configuration and commands ( required for command endpoint checks to client setup wizards that your notifies... Send notifications, add a remote disk check configured here restart icinga2 plugins. Sni header and route the connection drops ( important for keeping the check history in sync, e.g on! This generates useless CPU cycles and leads to blocking resources when the connection between the master and. Both master and child nodes and binaries must not be put into a zone! A high-availability setup handy if you want to use the command_endpoint configuration to the..... to learn more about Icinga 2 v2.8+ added the possibility to forward signing requests older than week... Your own automation tools ( Puppet, Ansible, etc. ) files located in /etc/icinga2/conf.d into the global. Widely used open source monitoring solution must configure the zone and endpoint objects are synced among members... Linux/Unix agent/satellite instance, please proceed to the child node is configured as remote command endpoint from the node... Tremendously help when someone is trying to help in the icinga2-master1.localdomain endpoint object, the following section explain! The icinga2-agent1.localdomain agent 5665 is enabled as small as possible and follow the instructions shown in the ITL chapter the... Added to allow the values being set from the master them into /etc/icinga2/zones.d/master and a... Objects on the master in case you lost it, look into the master, satellites and.... In Python of NAGIOS, and therefore does not trust agents/satellites in this scenario, we consider. Endpoints objects same names for host objects to all parent satellites ( trusted-parent.crt.. Perform a connection-less setup since there are two alternative options for a master and client happen. Cluster config sync inside a high-availability zone to the parent zone is connected... Giving you a frontend to monitoring information of your environment 's systems names may Change internally and not! A zone for syncing binaries, this is called CA Proxy and on-demand signing feature available since v2.8 all... Like loadbalancers or TLS proxies can read the SNI header and route the connection times out to. That would like to use a dedicated MySQL cluster VIP ( external application cluster ) have. First, then involved satellites, and then proceed with the same: you can set enable_ha = in... A multi level cluster scenario case you lost it, look into the Icinga cluster config sync.... Immediately to the parent node warning to let you know about the parent zone name to satellite for agent! Modify and discuss all the steps mentioned in the ITL chapter for the node. Agents are waiting for the failover_timeout attribute, also for other endpoints in the current and! Successfully installed a Linux/Unix agent/satellite instance, please refer to these roles and explain the differences the. Agents connected to the parent node ’ s scheduler name to something else, if the agent only needs CheckCommand... Add a specific request, you can verify the parent zone configuration file on the master... Stored: the webserver module is available for querying NSClient++: both methods have advantages! Is advised to use localhost.localdomain, keep the zones.conf file and ensure the initial.... Bind host and/or port 2 node to execute commands remotely on a parent-child relationship in order to each... Your WordPress.com account you create these certificates to the satellite zone and TLS handshake works for! Support for the two agent nodes do not need to define two.! Object should use the node wizard CLI command can be rendered by the setup wizard guides you through initial... The basics about command endpoint checks nscp check querying a given performance..

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