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authorOleg Pykhalov <go.wigust@gmail.com>2018-11-29 20:30:49 +0300
committerOleg Pykhalov <go.wigust@gmail.com>2018-12-17 22:09:10 +0300
commit6106d7cae49fb6686a237b53d465c89211ecad8f (patch)
tree267e7c4f0f3d455ea577623e955aedefadf16e9e /gnu/services/monitoring.scm
parent6b1c4179e2596d860b1c49dea8021bc39d28da67 (diff)
services: monitoring: Add 'zabbix-agent'.
* gnu/services/monitoring.scm (zabbix-server-service-type, zabbix-agent-account, zabbix-agent-activation, zabbix-agent-config-file, zabbix-agent-shepherd-service, generate-zabbix-agent-documentation): New procedures. (zabbix-agent-service-type): New 'service-type'. * gnu/tests/monitoring.scm (run-zabbix-server-test): Test 'zabbix-agent'. (%zabbix-os): Add 'zabbix-agent' service. * doc/guix.texi (Monitoring Services): Document 'zabbix-agent'.
Diffstat (limited to 'gnu/services/monitoring.scm')
-rw-r--r--gnu/services/monitoring.scm133
1 files changed, 132 insertions, 1 deletions
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))