Automated and Adaptive Infrastructure Monitoring using Chef, Nagios and Graphite

Transcript

1. Automated and Adaptive Infrastructure Monitoring
2. Automated? ... and Adaptive? MONITORING…
3. COMPONENTS…
4. CHEF… Overview v  Configuration Management Tool written in Ruby v Client Server setup v Manage nodes using code (Cookbooks) v Perform specialized searches (search) v Create scalable infrastructure
5. v Central distribution point for cookbooks v Management and authentication of nodes v Enabling search v Components ² API service ² Management webui (http://chef-server-fqdn:4040) ² Search indexer ² Request queuing server ² Datastore CHEF… Chef-Server
6. CHEF… Chef-Client v Nodes registered with the Chef server. v Compiles and executes cookbooks set it its run list. Node-name.json
7. CHEF… Cookbooks v Fundamental units of distribution. v Execute resources. v Cookbooks contain ² Attributes ² Libraries ² Files ² Templates ² Recipes ² Metadata ² Definitions
8. CHEF… Roles v Enable setting up nodes based on functionality. v Consist of attributes and run_list. v run_list includes the cookbooks required to create a node with the functionality that the role is set to achieve.
9. NAGIOS… Overview v Scalable infrastructure monitoring. v Consolidated, Central Visibility via dashboard. v Outage detection based on custom warning and critical levels. v Outage alerts. v Problem acknowledgement. v Alert Escalations.
10. NAGIOS… Configuration v Nagios reads its configuration data from text files. v These files are located in /etc/nagios directory. v The primary config file is the nagios.cfg file. v Specific configuration files are located under /etc/nagios/objects which include v commands.cfg v contacts.cfg v hosts.cfg v localhost.cfg v services.cfg v timeperiods.cfg v templates.cfg
11. NAGIOS… Templates
12. NAGIOS… NRPE v Nagios Remote Plugin Executor. v Retrieve status of remote services. v Consists of chef_nrpe plugin and NRPE daemon. v Config file is stored at /etc/nrpe
13. NRPE… Sample Plugin
14. NRPE… Plugin Set up Nrpe.cfg /etc/nrpe.d/custom.cfg
15. NAGIOS… Sample Config
16. NAGIOS… Sample Config
17. CHEF & NAGIOS… SetUp Nagios Server Default.rb Hosts.cfg.erb
18. CHEF & NAGIOS… SetUp Nagios Server Services.cfg.erb
19. CHEF & NAGIOS… SetUp Nagios Server hosts.cfg services.cfg
20. Graphite… Overview v Real-time graphing server. v Frontend : Webapp. v Backend : Storage application (Carbon). ² Carbon-agent.py ² Carbon-cache.py ² Carbon-persister.py
21. CHEF, NAGIOS & GRAPHITE
22. CHEF, NAGIOS & GRAPHITE