Update documentation

.mailmap

@@ -23,6 +23,7 @@ Alexander A. Klimov <alexander.klimov@icinga.com> <alexander.klimov@icinga.com>
 <marius@graylog.com> <marius@torch.sh>
 <markus.frosch@icinga.com> <lazyfrosch@icinga.org>
 <markus.frosch@icinga.com> <markus@lazyfrosch.de>
+<mathias.aerts@delta.blue> <mathiasaerts@users.noreply.github.com>
 <michael.friedrich@icinga.com> <michael.friedrich@gmail.com>
 <michael.friedrich@icinga.com> <Michael.Friedrich@netways.de>
 <nicole.lang@icinga.com> <nicole.lang@netways.de>

AUTHORS

@@ -11,6 +11,7 @@ Alexander Fuhr <alexander.fuhr@netways.de>
 Alexander Schomburg <script.acc@alex.schomb.org>
 Alexander Stoll <astoll@netways.de>
 Alexander Wirt <formorer@debian.org>
+Alvar Penning <alvar.penning@icinga.com>
 Andrea Avancini <andrea.avancini@wuerth-phoenix.com>
 Andrea Kao <eirinikos@gmail.com>
 Andreas Maus <maus@badphish.ypbind.de>

doc/02-installation.md

@@ -200,7 +200,7 @@ zypper ar https://download.opensuse.org/repositories/server:/monitoring/15.3/ser
 <!-- {% endif %} -->
 
 <!-- {% if amazon_linux %} -->
-### Amazon Linux 2 Repository <a id="amazon-linux-2-repository"></a>
+### Amazon Linux Repository <a id="amazon-linux-2-repository"></a>
 
 !!! info
 
@@ -214,12 +214,14 @@ rpm --import https://packages.icinga.com/icinga.key
 wget https://packages.icinga.com/subscription/amazon/ICINGA-release.repo -O /etc/yum.repos.d/ICINGA-release.repo
 ```
 
-The packages for Amazon Linux 2 depend on other packages which are distributed
+The packages for **Amazon Linux 2** depend on other packages which are distributed
 as part of the [EPEL repository](https://fedoraproject.org/wiki/EPEL).
 
 ```bash
 yum install epel-release
 ```
+
+The packages for newer versions of Amazon Linux don't require additional repositories.
 <!-- {% endif %} -->
 
 <!-- {% if windows %} -->
@@ -307,7 +309,7 @@ zypper install icinga2
 
 <!-- {% if amazon_linux %} -->
 <!-- {% if not icingaDocs %} -->
-#### Amazon Linux 2
+#### Amazon Linux
 <!-- {% endif %} -->
 ```bash
 yum install icinga2
@@ -418,15 +420,17 @@ zypper install --recommends monitoring-plugins-all
 
 <!-- {% if amazon_linux %} -->
 <!-- {% if not icingaDocs %} -->
-#### Amazon Linux 2
+#### Amazon Linux
 <!-- {% endif %} -->
-The packages for Amazon Linux 2 depend on other packages which are distributed as part of the EPEL repository.
+The packages for **Amazon Linux 2** depend on other packages which are distributed as part of the EPEL repository.
 
 ```bash
 amazon-linux-extras install epel
 
 yum install nagios-plugins-all
 ```
+
+Unfortunately newer versions of Amazon Linux don't provide those plugins, yet.
 <!-- {% endif %} -->
 
 ## Set up Icinga 2 API <a id="set-up-icinga2-api"></a>
@@ -505,7 +509,7 @@ Use your distribution's package manager to install the `icingadb-redis` package
 
 <!-- {% if amazon_linux %} -->
 <!-- {% if not icingaDocs %} -->
-##### Amazon Linux 2
+##### Amazon Linux
 <!-- {% endif %} -->
 ```bash
 yum install icingadb-redis

doc/05-service-monitoring.md

@@ -225,12 +225,12 @@ apply Service "db-size-" for (db_name => config in host.vars.databases) {
   check_command = "mysql_health"
 
   if (config.mysql_health_username) {
-    vars.mysql_healt_username = config.mysql_health_username
+    vars.mysql_health_username = config.mysql_health_username
   } else {
     vars.mysql_health_username = "root"
   }
   if (config.mysql_health_password) {
-    vars.mysql_healt_password = config.mysql_health_password
+    vars.mysql_health_password = config.mysql_health_password
   } else {
     vars.mysql_health_password = "icingar0xx"
   }

doc/09-object-types.md

@@ -34,6 +34,7 @@ the [Icinga 2 API](12-icinga2-api.md#icinga2-api-config-objects).
   templates                 | Array                 | Templates imported on object compilation.
   package                   | String                | [Configuration package name](12-icinga2-api.md#icinga2-api-config-management) this object belongs to. Local configuration is set to `_etc`, runtime created objects use `_api`.
   source\_location          | Dictionary            | Location information where the configuration files are stored.
+  name                      | String                | Object name. Might be used in [apply rules](03-monitoring-basics.md#using-apply).
 
 ## Monitoring Objects <a id="object-types-monitoring"></a>
 
@@ -731,7 +732,6 @@ Configuration Attributes:
   event\_command            | Object name           | **Optional.** The name of an event command that should be executed every time the service's state changes or the service is in a `SOFT` state.
   volatile                  | Boolean               | **Optional.** Treat all state changes as HARD changes. See [here](08-advanced-topics.md#volatile-services-hosts) for details. Defaults to `false`.
   zone                      | Object name           | **Optional.** The zone this object is a member of. Please read the [distributed monitoring](06-distributed-monitoring.md#distributed-monitoring) chapter for details.
-  name                      | String                | **Required.** The service name. Must be unique on a per-host basis. For advanced usage in [apply rules](03-monitoring-basics.md#using-apply) only.
   command\_endpoint         | Object name           | **Optional.** The endpoint where commands are executed on.
   notes                     | String                | **Optional.** Notes for the service.
   notes\_url                | String                | **Optional.** URL for notes for the service (for example, in notification commands).
@@ -1046,8 +1046,8 @@ Configuration Attributes:
 
   Name                      | Type                  | Description
   --------------------------|-----------------------|----------------------------------
-  host\_name                | Object name           | **Required.** The name of the host this comment belongs to.
-  service\_name             | Object name           | **Optional.** The short name of the service this comment belongs to. If omitted, this comment object is treated as host comment.
+  host\_name                | Object name           | **Required.** The name of the host this downtime belongs to.
+  service\_name             | Object name           | **Optional.** The short name of the service this downtime belongs to. If omitted, this downtime object is treated as host downtime.
   author                    | String                | **Required.** The author's name.
   comment                   | String                | **Required.** The comment text.
   start\_time               | Timestamp             | **Required.** The start time as UNIX timestamp.

doc/10-icinga-template-library.md

@@ -215,7 +215,7 @@ Optional custom variables passed as [command parameters](03-monitoring-basics.md
 | ifw\_api\_cert          | null (Icinga PKI) | TLS client certificate path.                                                                                |
 | ifw\_api\_key           | null (Icinga PKI) | TLS client private key path.                                                                                |
 | ifw\_api\_ca            | null (Icinga PKI) | Peer TLS CA certificate path.                                                                               |
-| ifw\_api\_crl           | null (Icinga PKI) | Path to TLS CRL to check peer against.                                                                      |
+| ifw\_api\_crl           | null (none)       | Path to TLS CRL to check peer against.                                                                      |
 | ifw\_api\_username      | null (none)       | Basic auth username.                                                                                        |
 | ifw\_api\_password      | null (none)       | Basic auth password.                                                                                        |
 

doc/12-icinga2-api.md

@@ -1850,15 +1850,15 @@ Example for all object events:
   --------------|---------------|--------------------------
   type 	        | String        | Event type `DowntimeAdded`.
   timestamp     | Timestamp     | Unix timestamp when the event happened.
-  downtime      | Dictionary    | Serialized [Comment](09-object-types.md#objecttype-downtime) object.
+  downtime      | Dictionary    | Serialized [Downtime](09-object-types.md#objecttype-downtime) object.
 
 #### <a id="icinga2-api-event-streams-type-downtimeremoved"></a> Event Stream Type: DowntimeRemoved
 
   Name 		| Type          | Description
   --------------|---------------|--------------------------
   type 	        | String        | Event type `DowntimeRemoved`.
   timestamp     | Timestamp     | Unix timestamp when the event happened.
-  downtime      | Dictionary    | Serialized [Comment](09-object-types.md#objecttype-downtime) object.
+  downtime      | Dictionary    | Serialized [Downtime](09-object-types.md#objecttype-downtime) object.
 
 
 #### <a id="icinga2-api-event-streams-type-downtimestarted"></a> Event Stream Type: DowntimeStarted
@@ -1867,7 +1867,7 @@ Example for all object events:
   --------------|---------------|--------------------------
   type 	        | String        | Event type `DowntimeStarted`.
   timestamp     | Timestamp     | Unix timestamp when the event happened.
-  downtime      | Dictionary    | Serialized [Comment](09-object-types.md#objecttype-downtime) object.
+  downtime      | Dictionary    | Serialized [Downtime](09-object-types.md#objecttype-downtime) object.
 
 
 #### <a id="icinga2-api-event-streams-type-downtimetriggered"></a> Event Stream Type: DowntimeTriggered
@@ -1876,7 +1876,7 @@ Example for all object events:
   --------------|---------------|--------------------------
   type 	        | String        | Event type `DowntimeTriggered`.
   timestamp     | Timestamp     | Unix timestamp when the event happened.
-  downtime      | Dictionary    | Serialized [Comment](09-object-types.md#objecttype-downtime) object.
+  downtime      | Dictionary    | Serialized [Downtime](09-object-types.md#objecttype-downtime) object.
 
 
 ### Event Stream Filter <a id="icinga2-api-event-streams-filter"></a>

doc/14-features.md

@@ -843,7 +843,7 @@ yum install icinga2-ido-mysql
 zypper install icinga2-ido-mysql
 ```
 
-###### Amazon Linux 2
+###### Amazon Linux
 
 ```bash
 yum install icinga2-ido-mysql
@@ -942,7 +942,7 @@ yum install icinga2-ido-pgsql
 zypper install icinga2-ido-pgsql
 ```
 
-###### Amazon Linux 2
+###### Amazon Linux
 
 ```bash
 yum install icinga2-ido-pgsql

doc/15-troubleshooting.md

@@ -950,95 +950,6 @@ curl -k -s -u root:icinga -H 'Accept: application/json' -X POST 'https://localho
 ```
 
 
-### Analyze Notification Result <a id="troubleshooting-notifications-result"></a>
-
-> **Note**
->
-> This feature is available since v2.11 and requires all endpoints
-> being updated.
-
-Notifications inside a HA enabled zone are balanced between the endpoints,
-just like checks.
-
-Sometimes notifications may fail, and with looking into the (debug) logs
-for both masters, you cannot correlate this correctly.
-
-The `last_notification_result` runtime attribute is stored and synced for Notification
-objects and can be queried via REST API.
-
-Example for retrieving the notification object and result from all `disk` services using a
-[regex match](18-library-reference.md#global-functions-regex) on the name:
-
-```
-$ curl -k -s -u root:icinga -H 'Accept: application/json' -H 'X-HTTP-Method-Override: GET' -X POST 'https://localhost:5665/v1/objects/notifications' \
--d '{ "filter": "regex(pattern, service.name)", "filter_vars": { "pattern": "^disk" }, "attrs": [ "__name", "last_notification_result" ], "pretty": true }'
-{
-    "results": [
-
-        {
-            "attrs": {
-                "last_notification_result": {
-                    "active": true,
-                    "command": [
-                        "/etc/icinga2/scripts/mail-service-notification.sh",
-                        "-4",
-                        "",
-                        "-6",
-                        "",
-                        "-b",
-                        "",
-                        "-c",
-                        "",
-                        "-d",
-                        "2019-08-02 10:54:16 +0200",
-                        "-e",
-                        "disk",
-                        "-l",
-                        "icinga2-agent1.localdomain",
-                        "-n",
-                        "icinga2-agent1.localdomain",
-                        "-o",
-                        "DISK OK - free space: / 38108 MB (90.84% inode=100%);",
-                        "-r",
-                        "user@localdomain",
-                        "-s",
-                        "OK",
-                        "-t",
-                        "RECOVERY",
-                        "-u",
-                        "disk"
-                    ],
-                    "execution_end": 1564736056.186217,
-                    "execution_endpoint": "icinga2-master1.localdomain",
-                    "execution_start": 1564736056.132323,
-                    "exit_status": 0.0,
-                    "output": "",
-                    "type": "NotificationResult"
-                }
-            },
-            "joins": {},
-            "meta": {},
-            "name": "icinga2-agent1.localdomain!disk!mail-service-notification",
-            "type": "Notification"
-        }
-
-...
-
-    ]
-}
-```
-
-Example with the debug console:
-
-```
-$ ICINGA2_API_PASSWORD=icinga icinga2 console --connect 'https://root@localhost:5665/' --eval 'get_object(Notification, "icinga2-agent1.localdomain!disk!mail-service-notification").last_notification_result.execution_endpoint' | jq
-
-"icinga2-agent1.localdomain"
-```
-
-Whenever a notification command failed to execute, you can fetch the output as well.
-
-
 ## Feature Troubleshooting <a id="troubleshooting-features"></a>
 
 ### Feature is not working <a id="feature-not-working"></a>