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1 # Upgrading Icinga 2 <a id="upgrading-icinga-2"></a>
2
3 Upgrading Icinga 2 is usually quite straightforward. Ordinarily the only manual steps involved
4 are scheme updates for the IDO database.
5
6 Specific version upgrades are described below. Please note that version
7 updates are incremental. An upgrade from v2.6 to v2.8 requires to
8 follow the instructions for v2.7 too.
9
10 ## Upgrading to v2.8 <a id="upgrading-to-2-8"></a>
11
12 ### DB IDO Schema Update to 2.8.0 <a id="upgrading-to-2-8-db-ido"></a>
13
14 There are additional indexes and schema fixes which require an update.
15
16 Please proceed here for [MySQL](16-upgrading-icinga-2.md#upgrading-mysql-db) or [PostgreSQL](16-upgrading-icinga-2.md#upgrading-postgresql-db).
17
18 ### Changed Certificate Paths <a id="upgrading-to-2-8-certificate-paths"></a>
19
20 The default certificate path was changed from `/etc/icinga2/pki` to
21 `/var/lib/icinga2/certs`.
22
23   Old Path                                           | New Path
24   ---------------------------------------------------|---------------------------------------------------
25   `/etc/icinga2/pki/icinga2-client1.localdomain.crt` | `/var/lib/icinga2/certs/icinga2-client1.localdomain.crt`
26   `/etc/icinga2/pki/icinga2-client1.localdomain.key` | `/var/lib/icinga2/certs/icinga2-client1.localdomain.key`
27   `/etc/icinga2/pki/ca.crt`                          | `/var/lib/icinga2/certs/ca.crt`
28
29 This applies to Windows clients in the same way: `%ProgramData%\etc\icinga2\pki`
30 was moved to `%ProgramData%\var\lib\icinga2\certs`.
31
32   Old Path                                                        | New Path
33   ----------------------------------------------------------------|----------------------------------------------------------------
34   `%ProgramData%\etc\icinga2\pki\icinga2-client1.localdomain.crt` | `%ProgramData%\var\lib\icinga2\certs\icinga2-client1.localdomain.crt`
35   `%ProgramData%\etc\icinga2\pki\icinga2-client1.localdomain.key` | `%ProgramData%\var\lib\icinga2\certs\icinga2-client1.localdomain.key`
36   `%ProgramData%\etc\icinga2\pki\ca.crt`                          | `%ProgramData%\var\lib\icinga2\certs\ca.crt`
37
38
39 > **Note**
40 >
41 > The default expected path for client certificates is `/var/lib/icinga2/certs/ + NodeName + {.crt,.key}`.
42 > The `NodeName` constant is usually the FQDN and certificate common name (CN). Check the [conventions](06-distributed-monitoring.md#distributed-monitoring-conventions)
43 > section inside the Distributed Monitoring chapter.
44
45 The [setup CLI commands](06-distributed-monitoring.md#distributed-monitoring-setup-master) and the
46 default [ApiListener configuration](06-distributed-monitoring.md#distributed-monitoring-apilistener)
47 have been adjusted to these paths too.
48
49 The [ApiListener](09-object-types.md#objecttype-apilistener) object attributes `cert_path`, `key_path`
50 and `ca_path` have been deprecated and removed from the example configuration.
51
52 #### Migration Path <a id="upgrading-to-2-8-certificate-paths-migration-path"></a>
53
54 > **Note**
55 >
56 > Icinga 2 automatically migrates the certificates to the new default location if they
57 > are configured and detected in `/etc/icinga2/pki`.
58
59 During startup, the migration kicks in and ensures to copy the certificates to the new
60 location. This will also happen if someone updates the certificate files in `/etc/icinga2/pki`
61 to ensure that the new certificate location always has the latest files.
62
63 This has been implemented in the Icinga 2 binary to ensure it works on both Linux/Unix
64 and the Windows platform.
65
66 If you are not using the built-in CLI commands and setup wizards to deploy the client certificates,
67 please ensure to update your deployment tools/scripts. This mainly affects
68
69 * Puppet modules
70 * Ansible playbooks
71 * Chef cookbooks
72 * Salt recipes
73 * Custom scripts, e.g. Windows Powershell or self-made implementations
74
75 In order to support a smooth migration between versions older than 2.8 and future releases,
76 the built-in certificate migration path is planned to exist as long as the deprecated
77 `ApiListener` object attributes exist.
78
79 You are safe to use the existing configuration paths inside the `api` feature. If you plan your migration,
80 look at the following example taken from the Director Linux deployment script for clients.
81
82 * Ensure that the default certificate path is changed from `/etc/icinga2/pki` to `/var/lib/icinga2/certs`.
83
84 ```
85 -ICINGA2_SSL_DIR="${ICINGA2_CONF_DIR}/pki"
86 +ICINGA2_SSL_DIR="${ICINGA2_STATE_DIR}/lib/icinga2/certs"
87 ```
88
89 * Remove the ApiListener configuration attributes.
90
91 ```
92 object ApiListener "api" {
93 -  cert_path = SysconfDir + "/icinga2/pki/${ICINGA2_NODENAME}.crt"
94 -  key_path = SysconfDir + "/icinga2/pki/${ICINGA2_NODENAME}.key"
95 -  ca_path = SysconfDir + "/icinga2/pki/ca.crt"
96   accept_commands = true
97   accept_config = true
98 }
99 ```
100
101 Test the script with a fresh client installation before putting it into production.
102
103 > **Tip**
104 >
105 > Please support module and script developers in their migration. If you find
106 > any project which would require these changes, create an issue or a patchset in a PR
107 > and help them out. Thanks in advance!
108
109 ### On-Demand Signing and CA Proxy <a id="upgrading-to-2-8-on-demand-signing-ca-proxy"></a>
110
111 Icinga 2 v2.8 supports the following features inside the cluster:
112
113 * Forward signing requests from clients through a satellite instance to a signing master ("CA Proxy").
114 * Signing requests without a ticket. The master instance allows to list and sign CSRs ("On-Demand Signing").
115
116 In order to use these features, **all instances must be upgraded to v2.8**.
117
118 More details in [this chapter](06-distributed-monitoring.md#distributed-monitoring-setup-sign-certificates-master).
119
120 ### Windows Client <a id="upgrading-to-2-8-windows-client"></a>
121
122 Windows versions older than Windows 10/Server 2016 require the [Universal C Runtime for Windows](https://support.microsoft.com/en-us/help/2999226/update-for-universal-c-runtime-in-windows).
123
124 ### Removed Bottom Up Client Mode <a id="upgrading-to-2-8-removed-bottom-up-client-mode"></a>
125
126 This client mode was deprecated in 2.6 and was removed in 2.8.
127
128 The node CLI command does not provide `list` or `update-config` anymore.
129
130 > **Note**
131 >
132 > The old migration guide can be found on [GitHub](https://github.com/Icinga/icinga2/blob/v2.7.0/doc/06-distributed-monitoring.md#bottom-up-migration-to-top-down-).
133
134 The clients don't need to have a local `conf.d` directory included.
135
136 Icinga 2 continues to run with the generated and imported configuration.
137 You are advised to [migrate](https://github.com/Icinga/icinga2/issues/4798)
138 any existing configuration to the "top down" mode with the help of the
139 Icinga Director or config management tools such as Puppet, Ansible, etc.
140
141
142 ### Removed Classic UI Config Package <a id="upgrading-to-2-8-removed-classicui-config-package"></a>
143
144 The config meta package `classicui-config` and the configuration files
145 have been removed. You need to manually configure
146 this legacy interface. Create a backup of the configuration
147 before upgrading and re-configure it afterwards.
148
149
150 ### Flapping Configuration <a id="upgrading-to-2-8-flapping-configuration"></a>
151
152 Icinga 2 v2.8 implements a new flapping detection algorithm which splits the
153 threshold configuration into low and high settings.
154
155 `flapping_threshold` is deprecated and does not have any effect when flapping
156 is enabled. Please remove `flapping_threshold` from your configuration. This
157 attribute will be removed in v2.9.
158
159 Instead you need to use the `flapping_threshold_low` and `flapping_threshold_high`
160 attributes. More details can be found [here](08-advanced-topics.md#check-flapping).
161
162 ### Deprecated Configuration Attributes <a id="upgrading-to-2-8-deprecated-configuration"></a>
163
164   Object        | Attribute
165   --------------|------------------
166   ApiListener   | cert\_path (migration happens)
167   ApiListener   | key\_path (migration happens)
168   ApiListener   | ca\_path (migration happens)
169   Host, Service | flapping\_threshold (has no effect)
170
171 ## Upgrading to v2.7 <a id="upgrading-to-2-7"></a>
172
173 v2.7.0 provided new notification scripts and commands. Please ensure to
174 update your configuration accordingly. An advisory has been published [here](https://www.icinga.com/2017/08/23/advisory-for-icinga-2-v2-7-update-and-mail-notification-scripts/).
175
176 In case are having troubles with OpenSSL 1.1.0 and the
177 public CA certificates, please read [this advisory](https://www.icinga.com/2017/08/30/advisory-for-ssl-problems-with-leading-zeros-on-openssl-1-1-0/)
178 and check the [troubleshooting chapter](15-troubleshooting.md#troubleshooting).
179
180 If Icinga 2 fails to start with an empty reference to `$ICINGA2_CACHE_DIR`
181 ensure to set it inside `/etc/sysconfig/icinga2` (RHEL) or `/etc/default/icinga2` (Debian).
182
183 RPM packages will put a file called `/etc/sysconfig/icinga2.rpmnew`
184 if you have modified the original file.
185
186 Example on CentOS 7:
187
188 ```
189 vim /etc/sysconfig/icinga2
190
191 ICINGA2_CACHE_DIR=/var/cache/icinga2
192
193 systemctl restart icinga2
194 ```
195
196 ## Upgrading the MySQL database <a id="upgrading-mysql-db"></a>
197
198 If you want to upgrade an existing Icinga 2 instance, check the
199 `/usr/share/icinga2-ido-mysql/schema/upgrade` directory for incremental schema upgrade file(s).
200
201 > **Note**
202 >
203 > If there isn't an upgrade file for your current version available, there's nothing to do.
204
205 Apply all database schema upgrade files incrementally.
206
207 ```
208 # mysql -u root -p icinga < /usr/share/icinga2-ido-mysql/schema/upgrade/<version>.sql
209 ```
210
211 The Icinga 2 DB IDO feature checks the required database schema version on startup
212 and generates an log message if not satisfied.
213
214
215 **Example:** You are upgrading Icinga 2 from version `2.4.0` to `2.8.0`. Look into
216 the `upgrade` directory:
217
218 ```
219 $ ls /usr/share/icinga2-ido-mysql/schema/upgrade/
220 2.0.2.sql 2.1.0.sql 2.2.0.sql 2.3.0.sql 2.4.0.sql 2.5.0.sql 2.6.0.sql 2.8.0.sql
221 ```
222
223 There are two new upgrade files called `2.5.0.sql`, `2.6.0.sql` and `2.8.0.sql`
224 which must be applied incrementally to your IDO database.
225
226 ```
227 # mysql -u root -p icinga < /usr/share/icinga2-ido-mysql/schema/upgrade/2.5.0.sql
228 # mysql -u root -p icinga < /usr/share/icinga2-ido-mysql/schema/upgrade/2.6.0.sql
229 # mysql -u root -p icinga < /usr/share/icinga2-ido-mysql/schema/upgrade/2.8.0.sql
230 ```
231
232 ## Upgrading the PostgreSQL database <a id="upgrading-postgresql-db"></a>
233
234 If you want to upgrade an existing Icinga 2 instance, check the
235 `/usr/share/icinga2-ido-pgsql/schema/upgrade` directory for incremental schema upgrade file(s).
236
237 > **Note**
238 >
239 > If there isn't an upgrade file for your current version available, there's nothing to do.
240
241 Apply all database schema upgrade files incrementally.
242
243 ```
244 # export PGPASSWORD=icinga
245 # psql -U icinga -d icinga < /usr/share/icinga2-ido-pgsql/schema/upgrade/<version>.sql
246 ```
247
248 The Icinga 2 DB IDO feature checks the required database schema version on startup
249 and generates an log message if not satisfied.
250
251 **Example:** You are upgrading Icinga 2 from version `2.4.0` to `2.8.0`. Look into
252 the `upgrade` directory:
253
254 ```
255 $ ls /usr/share/icinga2-ido-pgsql/schema/upgrade/
256 2.0.2.sql 2.1.0.sql 2.2.0.sql 2.3.0.sql 2.4.0.sql 2.5.0.sql 2.6.0.sql 2.8.0.sql
257 ```
258
259 There are two new upgrade files called `2.5.0.sql`, `2.6.0.sql` and `2.8.0.sql`
260 which must be applied incrementally to your IDO database.
261
262 ```
263 # export PGPASSWORD=icinga
264 # psql -U icinga -d icinga < /usr/share/icinga2-ido-pgsql/schema/upgrade/2.5.0.sql
265 # psql -U icinga -d icinga < /usr/share/icinga2-ido-pgsql/schema/upgrade/2.6.0.sql
266 # psql -U icinga -d icinga < /usr/share/icinga2-ido-pgsql/schema/upgrade/2.8.0.sql
267 ```