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