;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Sou Bunnbu <iyzsong@member.fsf.org>
;;; Copyright © 2017, 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
;;; Copyright © 2018, 2019 Oleg Pykhalov <go.wigust@gmail.com>
;;; Copyright © 2020 Alex ter Weele <alex.ter.weele@gmail.com>
;;; Copyright © 2020 Lars-Dominik Braun <ldb@leibniz-psychology.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages monitoring)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix build-system perl)
  #:use-module (guix build-system python)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system go)
  #:use-module (guix utils)
  #:use-module (gnu packages)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages base)
  #:use-module (gnu packages curl)
  #:use-module (gnu packages check)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages databases)
  #:use-module (gnu packages django)
  #:use-module (gnu packages gd)
  #:use-module (gnu packages gettext)
  #:use-module (gnu packages image)
  #:use-module (gnu packages mail)
  #:use-module (gnu packages networking)
  #:use-module (gnu packages libevent)
  #:use-module (gnu packages pcre)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python)
  #:use-module (gnu packages python-web)
  #:use-module (gnu packages python-xyz)
  #:use-module (gnu packages rrdtool)
  #:use-module (gnu packages time)
  #:use-module (gnu packages tls)
  #:use-module (gnu packages web))

(define-public nagios
  (package
    (name "nagios")
    (version "4.4.6")
    ;; XXX: Nagios 4.2.x and later bundle a copy of AngularJS.
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://sourceforge/nagios/nagios-4.x/nagios-"
                    version "/nagios-" version ".tar.gz"))
              (sha256
               (base32
                "1x5hb97zbvkm73q53ydp1gwj8nnznm72q9c4rm6ny7phr995l3db"))
              (modules '((guix build utils)))
              (snippet
               ;; Ensure reproducibility.
               '(begin
                  (substitute* (find-files "cgi" "\\.c$")
                    (("__DATE__") "\"1970-01-01\"")
                    (("__TIME__") "\"00:00:00\""))
                  #t))))
    (build-system gnu-build-system)
    (native-inputs
     `(("unzip" ,unzip)))
    (inputs
     `(("zlib" ,zlib)
       ("libpng-apng" ,libpng)
       ("gd" ,gd)
       ("perl" ,perl)
       ("mailutils" ,mailutils)))
    (arguments
     '(#:configure-flags (list "--sysconfdir=/etc"

                               ;; 'include/locations.h.in' defines file
                               ;; locations, and many things go directly under
                               ;; LOCALSTATEDIR, hence the extra '/nagios'.
                               "--localstatedir=/var/nagios"

                               (string-append
                                "--with-mail="
                                (assoc-ref %build-inputs "mailutils")
                                "/bin/mail"))
       #:make-flags '("all")
       #:phases (modify-phases %standard-phases
                  (add-before 'build 'do-not-chown-to-nagios
                    (lambda _
                      ;; Makefiles do 'install -o nagios -g nagios', which
                      ;; doesn't work for us.
                      (substitute* (find-files "." "^Makefile$")
                        (("-o nagios -g nagios")
                         ""))
                      #t))
                  (add-before 'build 'do-not-create-sysconfdir
                    (lambda _
                      ;; Don't try to create /var upon 'make install'.
                      (substitute* "Makefile"
                        (("\\$\\(INSTALL\\).*\\$\\(LOGDIR\\).*$" all)
                         (string-append "# " all))
                        (("\\$\\(INSTALL\\).*\\$\\(CHECKRESULTDIR\\).*$" all)
                         (string-append "# " all))
                        (("chmod g\\+s.*" all)
                         (string-append "# " all)))
                      #t))
                  (add-before 'build 'set-html/php-directory
                    (lambda _
                      ;; Install HTML and PHP files under 'share/nagios/html'
                      ;; instead of just 'share/'.
                      (substitute* '("html/Makefile" "Makefile")
                        (("HTMLDIR=.*$")
                         "HTMLDIR = $(datarootdir)/nagios/html\n"))
                      #t)))
       #:tests? #f))                             ;no 'check' target or similar
    (home-page "https://www.nagios.org/")
    (synopsis "Host, service, and network monitoring program")
    (description
     "Nagios is a host, service, and network monitoring program written in C.
CGI programs are included to allow you to view the current status, history,
etc. via a Web interface.  Features include:

@itemize
@item Monitoring of network services (via SMTP, POP3, HTTP, PING, etc).
@item Monitoring of host resources (processor load, disk usage, etc.).
@item A plugin interface to allow for user-developed service monitoring
  methods.
@item Ability to define network host hierarchy using \"parent\" hosts,
  allowing detection of and distinction between hosts that are down
  and those that are unreachable.
@item Notifications when problems occur and get resolved (via email,
  pager, or user-defined method).
@item Ability to define event handlers for proactive problem resolution.
@item Automatic log file rotation/archiving.
@item Optional web interface for viewing current network status,
  notification and problem history, log file, etc.
@end itemize\n")
    (license license:gpl2)))

(define-public zabbix-agentd
  (package
    (name "zabbix-agentd")
    (version "4.4.6")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "mirror://sourceforge/zabbix/ZABBIX%20Latest%20Stable/" version
             "/zabbix-" version ".tar.gz"))
       (sha256
        (base32
         "03mf4sklnw1x0ixp41vnibkz0794yi9jhws7ixld8jj2czk2ifr2"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list "--enable-agent"
             (string-append "--with-iconv="
                            (assoc-ref %build-inputs "libiconv"))
             (string-append "--with-libpcre="
                            (assoc-ref %build-inputs "pcre")))))
    (inputs
     `(("libiconv" ,libiconv)
       ("pcre" ,pcre)))
    (home-page "https://www.zabbix.com/")
    (synopsis "Distributed monitoring solution (client-side agent)")
    (description "This package provides a distributed monitoring
solution (client-side agent)")
    (license license:gpl2)))

(define-public zabbix-server
  (package
    (inherit zabbix-agentd)
    (name "zabbix-server")
    (outputs '("out" "front-end" "schema"))
    (arguments
     (substitute-keyword-arguments
         `(#:phases
           (modify-phases %standard-phases
             (add-after 'install 'install-front-end
               (lambda* (#:key outputs #:allow-other-keys)
                 (let* ((php (string-append (assoc-ref outputs "front-end")
                                            "/share/zabbix/php"))
                        (front-end-conf (string-append php "/conf"))
                        (etc (string-append php "/etc")))
                   (mkdir-p php)
                   (copy-recursively "frontends/php" php)
                   ;; Make front-end write config to ‘/etc/zabbix’ directory.
                   (rename-file front-end-conf
                                (string-append front-end-conf "-example"))
                   (symlink "/etc/zabbix" front-end-conf))
                 #t))
             (add-after 'install 'install-schema
               (lambda* (#:key outputs #:allow-other-keys)
                 (let ((database-directory
                        (string-append (assoc-ref outputs "schema")
                                       "/database")))
                   (for-each delete-file
                             (find-files "database" "Makefile\\.in|\\.am$"))
                   (mkdir-p database-directory)
                   (copy-recursively "database" database-directory))
                 #t)))
           ,@(package-arguments zabbix-agentd))
       ((#:configure-flags flags)
        `(cons* "--enable-server"
                "--with-postgresql"
                (string-append "--with-libevent="
                               (assoc-ref %build-inputs "libevent"))
                "--with-net-snmp"
                (string-append "--with-gnutls="
                               (assoc-ref %build-inputs "gnutls"))
                "--with-libcurl"
                (string-append "--with-zlib="
                               (assoc-ref %build-inputs "zlib"))
                ,flags))))
    (inputs
     `(("curl" ,curl)
       ("libevent" ,libevent)
       ("gnutls" ,gnutls)
       ("postgresql" ,postgresql)
       ("zlib" ,zlib)
       ("net-snmp" ,net-snmp)
       ("curl" ,curl)
       ,@(package-inputs zabbix-agentd)))
    (synopsis "Distributed monitoring solution (server-side)")
    (description "This package provides a distributed monitoring
solution (server-side)")))

(define-public darkstat
  (package
    (name "darkstat")
    (version "3.0.719")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://unix4lyfe.org/darkstat/darkstat-"
                                  version ".tar.bz2"))
              (sha256
               (base32
                "1mzddlim6dhd7jhr4smh0n2fa511nvyjhlx76b03vx7phnar1bxf"))))
    (build-system gnu-build-system)
    (arguments '(#:tests? #f))          ; no tests
    (inputs
     `(("libpcap" ,libpcap)
       ("zlib" ,zlib)))
    (home-page "https://unix4lyfe.org/darkstat/")
    (synopsis "Network statistics gatherer")
    (description
     "@command{darkstat} is a packet sniffer that runs as a background process,
gathers all sorts of statistics about network usage, and serves them over
HTTP.  Features:

@itemize
@item Traffic graphs, reports per host, shows ports for each host.
@item Embedded web-server with deflate compression.
@item Asynchronous reverse DNS resolution using a child process.
@item Small.  Portable.  Single-threaded.  Efficient.
@item Supports IPv6.
@end itemize")
    (license license:gpl2)))

(define-public python-whisper
  (package
    (name "python-whisper")
    (version "1.0.2")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "whisper" version))
       (sha256
        (base32
         "1v1bi3fl1i6p4z4ki692bykrkw6907dn3mfq0151f70lvi3zpns3"))))
    (build-system python-build-system)
    (home-page "http://graphiteapp.org/")
    (synopsis "Fixed size round-robin style database for Graphite")
    (description "Whisper is one of three components within the Graphite
project.  Whisper is a fixed-size database, similar in design and purpose to
RRD (round-robin-database).  It provides fast, reliable storage of numeric
data over time.  Whisper allows for higher resolution (seconds per point) of
recent data to degrade into lower resolutions for long-term retention of
historical data.")
    (license license:asl2.0)))

(define-public python2-whisper
  (package-with-python2 python-whisper))

(define-public python2-carbon
  (package
    (name "python2-carbon")
    (version "1.0.2")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "carbon" version))
       (sha256
        (base32
         "142smpmgbnjinvfb6s4ijazish4vfgzyd8zcmdkh55y051fkixkn"))))
    (build-system python-build-system)
    (arguments
     `(#:python ,python-2   ; only supports Python 2
       #:phases
       (modify-phases %standard-phases
         ;; Don't install to /opt
         (add-after 'unpack 'do-not-install-to-/opt
           (lambda _ (setenv "GRAPHITE_NO_PREFIX" "1") #t)))))
    (propagated-inputs
     `(("python2-whisper" ,python2-whisper)
       ("python2-configparser" ,python2-configparser)
       ("python2-txamqp" ,python2-txamqp)))
    (home-page "http://graphiteapp.org/")
    (synopsis "Backend data caching and persistence daemon for Graphite")
    (description "Carbon is a backend data caching and persistence daemon for
Graphite.  Carbon is responsible for receiving metrics over the network,
caching them in memory for \"hot queries\" from the Graphite-Web application,
and persisting them to disk using the Whisper time-series library.")
    (license license:asl2.0)))

(define-public python2-graphite-web
  (package
    (name "python2-graphite-web")
    (version "1.0.2")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "graphite-web" version))
       (sha256
        (base32
         "0q8bwlj75jqyzmazfsi5sa26xl58ssa8wdxm2l4j0jqyn8xpfnmc"))))
    (build-system python-build-system)
    (arguments
     `(#:python ,python-2               ; only supports Python 2
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'relax-requirements
           (lambda _
             (substitute* "setup.py"
               (("0.4.3") ,(package-version python2-django-tagging))
               (("<1.9.99") (string-append "<="
                             ,(package-version python2-django))))
             #t))
         ;; Don't install to /opt
         (add-after 'unpack 'do-not-install-to-/opt
           (lambda _ (setenv "GRAPHITE_NO_PREFIX" "1") #t)))))
    (propagated-inputs
     `(("python2-cairocffi" ,python2-cairocffi)
       ("python2-pytz" ,python2-pytz)
       ("python2-whisper" ,python2-whisper)
       ("python2-django" ,python2-django)
       ("python2-django-tagging" ,python2-django-tagging)
       ("python2-scandir" ,python2-scandir)
       ("python2-urllib3" ,python2-urllib3)
       ("python2-pyparsing" ,python2-pyparsing)
       ("python2-txamqp" ,python2-txamqp)))
    (home-page "http://graphiteapp.org/")
    (synopsis "Scalable realtime graphing system")
    (description "Graphite is a scalable real-time graphing system that does
two things: store numeric time-series data, and render graphs of this data on
demand.")
    (license license:asl2.0)))

(define-public python-prometheus-client
  (package
    (name "python-prometheus-client")
    (version "0.7.1")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "prometheus_client" version))
       (sha256
        (base32 "1ni2yv4ixwz32nz39ckia76lvggi7m19y5f702w5qczbnfi29kbi"))))
    (build-system python-build-system)
    (arguments
     '(;; No included tests.
       #:tests? #f))
    (propagated-inputs
     `(("python-twisted" ,python-twisted)))
    (home-page
     "https://github.com/prometheus/client_python")
    (synopsis "Python client for the Prometheus monitoring system")
    (description
     "The @code{prometheus_client} package supports exposing metrics from
software written in Python, so that they can be scraped by a Prometheus
service.

Metrics can be exposed through a standalone web server, or through Twisted,
WSGI and the node exporter textfile collector.")
    (license license:asl2.0)))

(define-public python2-prometheus-client
  (package-with-python2 python-prometheus-client))

(define-public go-github-com-prometheus-node-exporter
  (package
    (name "go-github-com-prometheus-node-exporter")
    (version "0.18.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/prometheus/node_exporter.git")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0s3sp1gj86p7npxl38hkgs6ymd3wjjmc5hydyg1b5wh0x3yvpx07"))))
    (build-system go-build-system)
    (arguments
     '(#:import-path "github.com/prometheus/node_exporter"))
    (synopsis "Prometheus exporter for hardware and OS metrics")
    (description "Prometheus exporter for metrics exposed by *NIX kernels,
written in Go with pluggable metric collectors.")
    (home-page "https://github.com/prometheus/node_exporter")
    (license license:asl2.0)))

(define-public fswatch
  (package
    (name "fswatch")
    (version "1.14.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                      (url "https://github.com/emcrisostomo/fswatch.git")
                      (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1ihn7wp3y7ml2lm8drz2hc6fmgj8kygbygnw8mz7gjax88f9dbx7"))))
    (build-system gnu-build-system)
    (native-inputs
     `(("autoconf" ,autoconf)
       ("automake" ,automake)
       ("gettext" ,gettext-minimal)
       ("libtool" ,libtool)))
    (synopsis "File system monitor")
    (description "This package provides a file system monitor.")
    (home-page "https://github.com/emcrisostomo/fswatch")
    (license license:gpl3+)))

(define-public collectd
  (package
    (name "collectd")
    (version "5.11.0")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://storage.googleapis.com/collectd-tarballs/collectd-"
                    version
                    ".tar.bz2"))
              (sha256
               (base32
                "1cjxksxdqcqdccz1nbnc2fp6yy84qq361ynaq5q8bailds00mc9p"))
              (patches (search-patches "collectd-5.11.0-noinstallvar.patch"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags (list "--localstatedir=/var" "--sysconfdir=/etc")
       #:phases (modify-phases %standard-phases
                  (add-before 'configure 'autoreconf
                    (lambda _
                      ;; Required because of patched sources.
                      (invoke "autoreconf" "-vfi"))))))
    (inputs
     `(("rrdtool" ,rrdtool)
       ("curl" ,curl)
       ("libyajl" ,libyajl)))
    (native-inputs
     `(("autoconf" ,autoconf)
       ("automake" ,automake)
       ("libtool" ,libtool)
       ("pkg-config" ,pkg-config)))
    (home-page "https://collectd.org/")
    (synopsis "Collect system and application performance metrics periodically")
    (description
     "collectd gathers metrics from various sources such as the operating system,
applications, log files and external devices, and stores this information or
makes it available over the network.  Those statistics can be used to monitor
systems, find performance bottlenecks (i.e., performance analysis) and predict
future system load (i.e., capacity planning).")
    ;; license:expat for the daemon in src/daemon/ and some plugins,
    ;; license:gpl2 for other plugins
    (license (list license:expat license:gpl2))))

