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+<!--startmeta
+custom_edit_url: "https://github.com/netdata/netdata/edit/master/health/notifications/custom/README.md"
+meta_yaml: "https://github.com/netdata/netdata/edit/master/health/notifications/custom/metadata.yaml"
+sidebar_label: "Custom"
+learn_status: "Published"
+learn_rel_path: "Alerting/Notifications/Agent Dispatched Notifications"
+message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE NOTIFICATION'S metadata.yaml FILE"
+endmeta-->
+
+# Custom
+
+
+<img src="https://netdata.cloud/img/custom.png" width="150"/>
+
+
+Netdata Agent's alert notification feature allows you to send custom notifications to any endpoint you choose.
+
+
+
+<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
+
+## Setup
+
+### Prerequisites
+
+####
+
+- Access to the terminal where Netdata Agent is running
+
+
+
+### Configuration
+
+#### File
+
+The configuration file name for this integration is `health_alarm_notify.conf`.
+
+
+You can edit the configuration file using the `edit-config` script from the
+Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory).
+
+```bash
+cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
+sudo ./edit-config health_alarm_notify.conf
+```
+#### Options
+
+The following options can be defined for this notification
+
+<details><summary>Config Options</summary>
+
+| Name | Description | Default | Required |
+|:----|:-----------|:-------|:--------:|
+| SEND_CUSTOM | Set `SEND_CUSTOM` to YES | YES | yes |
+| DEFAULT_RECIPIENT_CUSTOM | This value is dependent on how you handle the `${to}` variable inside the `custom_sender()` function. | | yes |
+| custom_sender() | You can look at the other senders in `/usr/libexec/netdata/plugins.d/alarm-notify.sh` for examples of how to modify the function in this configuration file. | | no |
+
+##### DEFAULT_RECIPIENT_CUSTOM
+
+All roles will default to this variable if left unconfigured. You can edit `DEFAULT_RECIPIENT_CUSTOM` with the variable you want, in the following entries at the bottom of the same file:
+```
+role_recipients_custom[sysadmin]="systems"
+role_recipients_custom[domainadmin]="domains"
+role_recipients_custom[dba]="databases systems"
+role_recipients_custom[webmaster]="marketing development"
+role_recipients_custom[proxyadmin]="proxy-admin"
+role_recipients_custom[sitemgr]="sites"
+```
+
+
+##### custom_sender()
+
+The following is a sample custom_sender() function in health_alarm_notify.conf, to send an SMS via an imaginary HTTPS endpoint to the SMS gateway:
+```
+custom_sender() {
+ # example human readable SMS
+ local msg="${host} ${status_message}: ${alarm} ${raised_for}"
+
+ # limit it to 160 characters and encode it for use in a URL
+ urlencode "${msg:0:160}" >/dev/null; msg="${REPLY}"
+
+ # a space separated list of the recipients to send alarms to
+ to="${1}"
+
+ for phone in ${to}; do
+ httpcode=$(docurl -X POST \
+ --data-urlencode "From=XXX" \
+ --data-urlencode "To=${phone}" \
+ --data-urlencode "Body=${msg}" \
+ -u "${accountsid}:${accounttoken}" \
+ https://domain.website.com/)
+
+ if [ "${httpcode}" = "200" ]; then
+ info "sent custom notification ${msg} to ${phone}"
+ sent=$((sent + 1))
+ else
+ error "failed to send custom notification ${msg} to ${phone} with HTTP error code ${httpcode}."
+ fi
+ done
+}
+```
+
+The supported variables that you can use for the function's `msg` variable are:
+
+| Variable name | Description |
+|:---------------------------:|:---------------------------------------------------------------------------------|
+| `${alarm}` | Like "name = value units" |
+| `${status_message}` | Like "needs attention", "recovered", "is critical" |
+| `${severity}` | Like "Escalated to CRITICAL", "Recovered from WARNING" |
+| `${raised_for}` | Like "(alarm was raised for 10 minutes)" |
+| `${host}` | The host generated this event |
+| `${url_host}` | Same as ${host} but URL encoded |
+| `${unique_id}` | The unique id of this event |
+| `${alarm_id}` | The unique id of the alarm that generated this event |
+| `${event_id}` | The incremental id of the event, for this alarm id |
+| `${when}` | The timestamp this event occurred |
+| `${name}` | The name of the alarm, as given in netdata health.d entries |
+| `${url_name}` | Same as ${name} but URL encoded |
+| `${chart}` | The name of the chart (type.id) |
+| `${url_chart}` | Same as ${chart} but URL encoded |
+| `${status}` | The current status : REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL |
+| `${old_status}` | The previous status: REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL |
+| `${value}` | The current value of the alarm |
+| `${old_value}` | The previous value of the alarm |
+| `${src}` | The line number and file the alarm has been configured |
+| `${duration}` | The duration in seconds of the previous alarm state |
+| `${duration_txt}` | Same as ${duration} for humans |
+| `${non_clear_duration}` | The total duration in seconds this is/was non-clear |
+| `${non_clear_duration_txt}` | Same as ${non_clear_duration} for humans |
+| `${units}` | The units of the value |
+| `${info}` | A short description of the alarm |
+| `${value_string}` | Friendly value (with units) |
+| `${old_value_string}` | Friendly old value (with units) |
+| `${image}` | The URL of an image to represent the status of the alarm |
+| `${color}` | A color in AABBCC format for the alarm |
+| `${goto_url}` | The URL the user can click to see the netdata dashboard |
+| `${calc_expression}` | The expression evaluated to provide the value for the alarm |
+| `${calc_param_values}` | The value of the variables in the evaluated expression |
+| `${total_warnings}` | The total number of alarms in WARNING state on the host |
+| `${total_critical}` | The total number of alarms in CRITICAL state on the host |
+
+
+</details>
+
+#### Examples
+
+##### Basic Configuration
+
+
+
+```yaml
+#------------------------------------------------------------------------------
+# custom notifications
+
+SEND_CUSTOM="YES"
+DEFAULT_RECIPIENT_CUSTOM=""
+
+# The custom_sender() is a custom function to do whatever you need to do
+custom_sender() {
+ # example human readable SMS
+ local msg="${host} ${status_message}: ${alarm} ${raised_for}"
+
+ # limit it to 160 characters and encode it for use in a URL
+ urlencode "${msg:0:160}" >/dev/null; msg="${REPLY}"
+
+ # a space separated list of the recipients to send alarms to
+ to="${1}"
+
+ for phone in ${to}; do
+ httpcode=$(docurl -X POST \
+ --data-urlencode "From=XXX" \
+ --data-urlencode "To=${phone}" \
+ --data-urlencode "Body=${msg}" \
+ -u "${accountsid}:${accounttoken}" \
+ https://domain.website.com/)
+
+ if [ "${httpcode}" = "200" ]; then
+ info "sent custom notification ${msg} to ${phone}"
+ sent=$((sent + 1))
+ else
+ error "failed to send custom notification ${msg} to ${phone} with HTTP error code ${httpcode}."
+ fi
+ done
+}
+
+```
+
+
+## Troubleshooting
+
+### Test Notification
+
+You can run the following command by hand, to test alerts configuration:
+
+```bash
+# become user netdata
+sudo su -s /bin/bash netdata
+
+# enable debugging info on the console
+export NETDATA_ALARM_NOTIFY_DEBUG=1
+
+# send test alarms to sysadmin
+/usr/libexec/netdata/plugins.d/alarm-notify.sh test
+
+# send test alarms to any role
+/usr/libexec/netdata/plugins.d/alarm-notify.sh test "ROLE"
+```
+
+Note that this will test _all_ alert mechanisms for the selected role.
+
+