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[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/blog
13 systems/board
14 systems/bugs
15 systems/cats
16 systems/email
17 systems/emailout
18 systems/git
19 systems/irc
20 systems/ircserver
21 systems/issue
22 systems/monitor
23 systems/puppet
24 systems/proxyin
25 systems/proxyout
26 systems/svn
27 systems/webmail
28 systems/webstatic
29
30
31 General
32 =======
33
34 .. todo:: consider whether a central MySQL service should be setup
35
36 Many containers contain their own instance of MySQL. It might be a better
37 idea to centralize the MySQL setups in a single container.
38
39 .. todo:: consider whether a central PostgreSQL service should be setup
40
41 .. todo::
42
43 setup a central syslog service and install syslog clients in each container
44
45 .. _setup_apt_checking:
46
47 .. topic:: Setup package update monitoring for a new container
48
49 For Icinga to be able to check the update status of packages on you server
50 you need to install NRPE, a helper service. Install the necessary packages::
51
52 sudo aptitude install nagios-plugins-basic nagios-nrpe-server
53
54 Put :doc:`systems/monitor` on the list of allowed hosts to access the NRPE
55 service by adding the following line to :file:`/etc/nagios/nrpe_local.cfg`::
56
57 allowed_hosts=172.16.2.18
58
59 Tell the NRPE service that there is such a thing as the check_apt command by
60 creating the file :file:`/etc/nagios/nrpe.d/apt.cfg` with the following
61 contents::
62
63 # 'check_apt' command definition
64 command[check_apt]=/usr/lib/nagios/plugins/check_apt
65
66 # 'check_apt_distupgrade' command definition
67 command[check_apt_distupgrade]=/usr/lib/nagios/plugins/check_apt -d
68
69 Restart the NRPE service::
70
71 sudo service nagios-nrpe-server restart
72
73 Check that everything went well by going to https://monitor.cacert.org/,
74 going to the APT service on the host and clicking :guilabel:`"Re-schedule
75 the next check of this service"`. Make sure that :guilabel:`"Force Check"`
76 is checked and click :guilabel:`"Commit"`. Now you should see a page with a
77 green background. If not something went wrong, please contact the
78 :doc:`systems/monitor` administrators with the details.
79
80 That's it, now the package update status should be properly displayed in
81 Icinga.
82
83 .. todo:: think about replacing nrpe with Icinga2 satellites
84
85 Checklist
86 =========
87
88 .. index::
89 single: etckeeper
90 single: nrpe
91
92 * All containers should be monitored by :doc:`systems/monitor` and should
93 therefore have :program:`nagios-nrpe-server` installed
94 * All containers should use :program:`etckeeper` to put their local setup into
95 version control. All local setup should use :file:`/etc` to make sure it is
96 handled by :program:`etckeeper`
97 * All infrastructure systems must send their mail via :doc:`systems/emailout`
98 * All infrastructure systems should have an system-admin@cacert.org alias to
99 reach their admins
100 * The installation of :index:`systemd-sysv` in containers can be blocked by
101 putting the following lines in :file:`/etc/apt/preferences.d/systemd-sysv`::
102
103 Package: systemd-sysv
104 Pin: release a=stable
105 Pin-Priority: -1
106
107 .. todo:: document how to setup the system-admin alias on the email system