c49850bc76d911583dba69963840d8781ac2bb18
[cacert-infradocs.git] / docs / systems.rst
1 ====================
2 Non-Critical Systems
3 ====================
4
5 Non-critical systems are those that are managed by the infrastructure
6 administrator team.
7
8 .. toctree::
9 :maxdepth: 1
10
11 systems/infra02
12 systems/arbitration
13 systems/blog
14 systems/board
15 systems/coaudit
16 systems/bugs
17 systems/cats
18 systems/email
19 systems/emailout
20 systems/git
21 systems/irc
22 systems/ircserver
23 systems/monitor
24 systems/puppet
25 systems/svn
26 systems/webmail
27
28
29 General
30 =======
31
32 .. todo:: consider whether a central MySQL service should be setup
33
34 Many containers contain their own instance of MySQL. It might be a better
35 idea to centralize the MySQL setups in a single container.
36
37 .. todo:: consider whether a central PostgreSQL service should be setup
38
39 .. todo::
40
41 setup a central syslog service and install syslog clients in each container
42
43 .. _setup_apt_checking:
44
45 .. topic:: Setup package update monitoring for a new container
46
47 For Icinga to be able to check the update status of packages on you server
48 you need to install NRPE, a helper service. Install the necessary packages::
49
50 sudo aptitude install nagios-plugins-basic nagios-nrpe-server
51
52 Put :doc:`systems/monitor` on the list of allowed hosts to access the NRPE
53 service by adding the following line to :file:`/etc/nagios/nrpe_local.cfg`::
54
55 allowed_hosts=172.16.2.18
56
57 Tell the NRPE service that there is such a thing as the check_apt command by
58 creating the file :file:`/etc/nagios/nrpe.d/apt.cfg` with the following
59 contents::
60
61 # 'check_apt' command definition
62 command[check_apt]=/usr/lib/nagios/plugins/check_apt
63
64 # 'check_apt_distupgrade' command definition
65 command[check_apt_distupgrade]=/usr/lib/nagios/plugins/check_apt -d
66
67 Restart the NRPE service::
68
69 sudo service nagios-nrpe-server restart
70
71 Check that everything went well by going to https://monitor.cacert.org/,
72 going to the APT service on the host and clicking :guilabel:`"Re-schedule
73 the next check of this service"`. Make sure that :guilabel:`"Force Check"`
74 is checked and click :guilabel:`"Commit"`. Now you should see a page with a
75 green background. If not something went wrong, please contact the
76 :doc:`systems/monitor` administrators with the details.
77
78 That's it, now the package update status should be properly displayed in
79 Icinga.
80
81 .. todo:: think about replacing nrpe with Icinga2 satellites
82
83 Checklist
84 =========
85
86 .. index::
87 single: etckeeper
88 single: nrpe
89
90 * All containers should be monitored by :doc:`systems/monitor` and should
91 therefore have :program:`nagios-nrpe-server` installed
92 * All containers should use :program:`etckeeper` to put their local setup into
93 version control. All local setup should use :file:`/etc` to make sure it is
94 handled by :program:`etckeeper`
95 * All infrastructure systems must send their mail via :doc:`systems/emailout`
96 * All infrastructure systems should have an system-admin@cacert.org alias to
97 reach their admins
98 * The installation of :index:`systemd-sysv` in containers can be blocked by
99 putting the following lines in :file:`/etc/apt/preferences.d/systemd-sysv`::
100
101 Package: systemd-sysv
102 Pin: release a=stable
103 Pin-Priority: -1
104
105 .. todo:: document how to setup the system-admin alias on the email system