...
| Code Block |
|---|
| language | yml |
|---|
| title | AlertmanagerConfigMail.yaml |
|---|
| collapse | true |
|---|
|
apiVersion: monitoring.coreos.com/v1alpha1
kind: AlertmanagerConfig
metadata:
name: alert-email
namespace: monitoring
labels:
alertmanager: config
spec:
route:
groupBy: [severity]
receiver: 'notifications'
groupWait: 30s
groupInterval: 5m
repeatInterval: 12h
receivers:
- name: 'notifications'
emailConfigs:
- to: <to@example.com>
from: <from@gmail.com>
smarthost: smtp.gmail.com:587
authUsername: <from@gmail.com>
authIdentity: <from@gmail.com>
authPassword:
name: gmail-pass
key: alertmanager.yaml
sendResolved: true
headers:
- key: From
value: <from@gmail.com>
- key: Subject
value: 'Alertmanager notification'
- key: To
value: <to@example.com>
---
apiVersion: v1
kind: Secret
type: Opaque
metadata:
name: gmail-pass
namespace: monitoring
data:
alertmanager.yaml: <pass_encode_base64> |
After executing an apply of the above file, it is advisable to take a look at the logs of the following Pods, to see if there are any errors during the execution
...
| Section |
|---|
| Column |
|---|
|  Manage Apps
|
| Column |
|---|
|  Incoming WebHooks
|
|
As seen aboveAt this point, as seen previously, we create an AlertmanagerConfig component for sending notifications to Slack, using the following file. Complete the file by replacing the two placeholders: the name of the Slack channel, in which to receive notifications, and the apiURL, in the Secret at the bottom, encoded in base64 (echo <apiURL> | base64 -w0).
| Code Block |
|---|
| language | yml |
|---|
| title | AlertmanagerConfigSlack.yaml |
|---|
| collapse | true |
|---|
|
apiVersion: monitoring.coreos.com/v1alpha1
kind: AlertmanagerConfig
metadata:
name: alert-slack
namespace: monitoring
labels:
alertmanager: config
spec:
route:
groupBy: [severity]
receiver: 'slack-notifications'
groupWait: 30s
groupInterval: 5m
repeatInterval: 12h
receivers:
- name: 'slack-notifications'
slackConfigs:
- channel: '#<channel><#channel>'
apiURL:
name: slack-pass
key: alertmanager.yaml
sendResolved: true
# The following lines can be omitted, they have only an aesthetic value
iconURL: 'https://avatars3.githubusercontent.com/u/3380462'
title: |-
[{{ .Status | toUpper }}{{ if eq .Status "firing" }}:{{ .Alerts.Firing | len }}{{ end }}] {{ .CommonLabels.alertname }} for {{ .CommonLabels.job }}
{{- if gt (len .CommonLabels) (len .GroupLabels) -}}
{{" "}}(
{{- with .CommonLabels.Remove .GroupLabels.Names }}
{{- range $index, $label := .SortedPairs -}}
{{ if $index }}, {{ end }}
{{- $label.Name }}="{{ $label.Value -}}"
{{- end }}
{{- end -}}
)
{{- end }}
text: >-
{{ range .Alerts -}}
*Alert:* {{ .Annotations.title }}{{ if .Labels.severity }} - `{{ .Labels.severity }}`{{ end }}
*Description:* {{ .Annotations.description }}
*Details:*
{{ range .Labels.SortedPairs }} • *{{ .Name }}:* `{{ .Value }}`
{{ end }}
{{ end }}
---
apiVersion: v1
kind: Secret
type: Opaque
metadata:
name: slack-pass
namespace: monitoring
data:
alertmanager.yaml: <apiURL_encode_base64> |
...