diff options
| -rw-r--r-- | doc/guix.texi | 103 | ||||
| -rw-r--r-- | gnu/services/monitoring.scm | 133 | ||||
| -rw-r--r-- | gnu/tests/monitoring.scm | 18 |
3 files changed, 252 insertions, 2 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 005ff83080..02778588ca 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -16800,6 +16800,109 @@ Defaults to @samp{()}. @end deftypevr +@c %end of fragment + +@subsubheading Zabbix agent +@cindex zabbix zabbix-agent + +Zabbix agent gathers information for Zabbix server. + +@c %start of fragment + +Available @code{zabbix-agent-configuration} fields are: + +@deftypevr {@code{zabbix-agent-configuration} parameter} package zabbix-agent +The zabbix-agent package. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} string user +User who will run the Zabbix agent. + +Defaults to @samp{"zabbix"}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} group group +Group who will run the Zabbix agent. + +Defaults to @samp{"zabbix"}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} string hostname +Unique, case sensitive hostname which is required for active checks and +must match hostname as configured on the server. + +Defaults to @samp{"Zabbix server"}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} string log-type +Specifies where log messages are written to: + +@itemize @bullet +@item +@code{system} - syslog. + +@item +@code{file} - file specified with @code{log-file} parameter. + +@item +@code{console} - standard output. + +@end itemize + +Defaults to @samp{""}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} string log-file +Log file name for @code{log-type} @code{file} parameter. + +Defaults to @samp{"/var/log/zabbix/agent.log"}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} string pid-file +Name of PID file. + +Defaults to @samp{"/var/run/zabbix/zabbix_agent.pid"}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} list server +List of IP addresses, optionally in CIDR notation, or hostnames of +Zabbix servers and Zabbix proxies. Incoming connections will be +accepted only from the hosts listed here. + +Defaults to @samp{("127.0.0.1")}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} list server-active +List of IP:port (or hostname:port) pairs of Zabbix servers and Zabbix +proxies for active checks. If port is not specified, default port is +used. If this parameter is not specified, active checks are disabled. + +Defaults to @samp{("127.0.0.1")}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} string extra-options +Extra options will be appended to Zabbix server configuration file. + +Defaults to @samp{""}. + +@end deftypevr + +@deftypevr {@code{zabbix-agent-configuration} parameter} include-files include-files +You may include individual files or all files in a directory in the +configuration file. + +Defaults to @samp{()}. + +@end deftypevr @c %end of fragment diff --git a/gnu/services/monitoring.scm b/gnu/services/monitoring.scm index cb1f71ebff..323c0ace56 100644 --- a/gnu/services/monitoring.scm +++ b/gnu/services/monitoring.scm @@ -36,7 +36,9 @@ prometheus-node-exporter-service-type zabbix-server-configuration - zabbix-server-service-type)) + zabbix-server-service-type + zabbix-agent-configuration + zabbix-agent-service-type)) ;;; @@ -314,3 +316,132 @@ configuration file.")) `((zabbix-server-configuration ,zabbix-server-configuration-fields)) 'zabbix-server-configuration)) + +(define-configuration zabbix-agent-configuration + (zabbix-agent + (package zabbix-agentd) + "The zabbix-agent package.") + (user + (string "zabbix") + "User who will run the Zabbix agent.") + (group + (group "zabbix") + "Group who will run the Zabbix agent.") + (hostname + (string "Zabbix server") + "Unique, case sensitive hostname which is required for active checks and +must match hostname as configured on the server.") + (log-type + (string "") + "Specifies where log messages are written to: +@itemize +@item @code{system} - syslog. +@item @code{file} - file specified with @code{log-file} parameter. +@item @code{console} - standard output. +@end itemize\n") + (log-file + (string "/var/log/zabbix/agent.log") + "Log file name for @code{log-type} @code{file} parameter.") + (pid-file + (string "/var/run/zabbix/zabbix_agent.pid") + "Name of PID file.") + (server + (list '("127.0.0.1")) + "List of IP addresses, optionally in CIDR notation, or hostnames of Zabbix +servers and Zabbix proxies. Incoming connections will be accepted only from +the hosts listed here.") + (server-active + (list '("127.0.0.1")) + "List of IP:port (or hostname:port) pairs of Zabbix servers and Zabbix +proxies for active checks. If port is not specified, default port is used. +If this parameter is not specified, active checks are disabled.") + (extra-options + (string "") + "Extra options will be appended to Zabbix server configuration file.") + (include-files + (include-files '()) + "You may include individual files or all files in a directory in the +configuration file.")) + +(define (zabbix-agent-account config) + "Return the user accounts and user groups for CONFIG." + (let ((zabbix-user "zabbix") + (zabbix-group "zabbix")) + (list (user-group (name zabbix-group) (system? #t)) + (user-account + (name zabbix-user) + (system? #t) + (group zabbix-group) + (comment "zabbix privilege separation user") + (home-directory (string-append "/var/run/" zabbix-user)) + (shell #~(string-append #$shadow "/sbin/nologin")))))) + +(define (zabbix-agent-activation config) + "Return the activation gexp for CONFIG." + (with-imported-modules '((guix build utils) + (ice-9 rdelim)) + #~(begin + (use-modules (guix build utils) + (ice-9 rdelim)) + (let ((user + (getpw #$(zabbix-agent-configuration-user config)))) + (for-each (lambda (file) + (let ((directory (dirname file))) + (mkdir-p directory) + (chown directory (passwd:uid user) (passwd:gid user)) + (chmod directory #o755))) + (list #$(zabbix-agent-configuration-log-file config) + #$(zabbix-agent-configuration-pid-file config))))))) + +(define (zabbix-agent-config-file config) + "Return the zabbix-agent configuration file corresponding to CONFIG." + (computed-file + "zabbix_agent.conf" + #~(begin + (call-with-output-file #$output + (lambda (port) + (display "# Generated by 'zabbix-agent-service'.\n" port) + (display #$(with-output-to-string + (lambda () + (serialize-configuration + config zabbix-agent-configuration-fields))) + port) + #t))))) + +(define (zabbix-agent-shepherd-service config) + "Return a <shepherd-service> for Zabbix agent with CONFIG." + (list (shepherd-service + (provision '(zabbix-agent)) + (documentation "Run Zabbix agent daemon.") + (start #~(make-forkexec-constructor + (list #$(file-append (zabbix-agent-configuration-zabbix-agent config) + "/sbin/zabbix_agentd") + "--config" #$(zabbix-agent-config-file config) + "--foreground") + #:user #$(zabbix-agent-configuration-user config) + #:group #$(zabbix-agent-configuration-group config) + #:pid-file #$(zabbix-agent-configuration-pid-file config) + #:environment-variables + (list "SSL_CERT_DIR=/run/current-system/profile\ +/etc/ssl/certs" + "SSL_CERT_FILE=/run/current-system/profile\ +/etc/ssl/certs/ca-certificates.crt"))) + (stop #~(make-kill-destructor))))) + +(define zabbix-agent-service-type + (service-type + (name 'zabbix-agent) + (extensions + (list (service-extension shepherd-root-service-type + zabbix-agent-shepherd-service) + (service-extension account-service-type + zabbix-agent-account) + (service-extension activation-service-type + zabbix-agent-activation))) + (default-value (zabbix-agent-configuration)))) + +(define (generate-zabbix-agent-documentation) + (generate-documentation + `((zabbix-agent-configuration + ,zabbix-agent-configuration-fields)) + 'zabbix-agent-configuration)) diff --git a/gnu/tests/monitoring.scm b/gnu/tests/monitoring.scm index edc41c4a30..76a2d3e946 100644 --- a/gnu/tests/monitoring.scm +++ b/gnu/tests/monitoring.scm @@ -235,6 +235,20 @@ zabbix||{} '(file-exists? "/var/run/zabbix/zabbix_server.pid") marionette)) + ;; Wait for zabbix-agent to be up and running. + (test-assert "zabbix-agent running" + (marionette-eval + '(begin + (use-modules (gnu services herd)) + (start-service 'zabbix-agent)) + marionette)) + + ;; Make sure the PID file is created. + (test-assert "zabbix-agent PID file" + (marionette-eval + '(file-exists? "/var/run/zabbix/zabbix_agent.pid") + marionette)) + (test-end) (exit (= (test-runner-fail-count (test-runner-current)) 0))))) @@ -250,7 +264,9 @@ zabbix||{} (service zabbix-server-service-type (zabbix-server-configuration (db-password "zabbix") - (log-type "console")))))) + (log-type "console"))) + + (service zabbix-agent-service-type)))) (operating-system (inherit base-os) (packages (cons* postgresql (operating-system-packages base-os)))))) |