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114 lines
3.5 KiB
Markdown
114 lines
3.5 KiB
Markdown
---
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sort: 13
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weight: 13
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title: Managing configuration for VMAlertmanager
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menu:
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docs:
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parent: "operator"
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weight: 13
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aliases:
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- /operator/vmalertmanager-configuration.html
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---
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# Managing configuration for VMAlertmanager
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The operator generates a configuration file for `VMAlertmanager` based on user input at the definition of `CRD`.
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Generated config stored at `Secret` created by the operator, it has the following name template `vmalertmanager-CRD_NAME-config`.
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This configuration file is mounted at `VMAlertmanager` `Pod`. A special side-car container tracks its changes and sends config-reload signals to `alertmanager` container.
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## Using secret
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Basically, you can use the global configuration defined at manually created `Secret`. This `Secret` must be created before `VMAlertmanager`.
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Name of the `Secret` must be defined at `VMAlertmanager` `spec.configSecret` option.
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```yaml
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apiVersion: v1
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kind: Secret
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metadata:
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name: vmalertmanager-example-alertmanager
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labels:
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app: vm-operator
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type: Opaque
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stringData:
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alertmanager.yaml: |
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global:
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resolve_timeout: 5m
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route:
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receiver: 'webhook'
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receivers:
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- name: 'webhook'
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webhook_configs:
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- url: 'http://alertmanagerwh:30500/'
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---
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apiVersion: operator.victoriametrics.com/v1beta1
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kind: VMAlertmanager
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metadata:
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name: example-alertmanager
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spec:
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replicaCount: 2
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configSecret: vmalertmanager-example-alertmanager
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```
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## Using inline raw config
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Also, if there is no secret data at configuration, or you just want to redefine some global variables for `alertmanager`.
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You can define configuration at `spec.configRawYaml` section of `VMAlertmanager` configuration:
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```yaml
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apiVersion: operator.victoriametrics.com/v1beta1
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kind: VMAlertmanager
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metadata:
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name: example-alertmanager
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spec:
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replicaCount: 2
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configRawYaml: |
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global:
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resolve_timeout: 5m
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route:
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receiver: 'default'
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group_interval: 5m
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repeat_interval: 12h
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receivers:
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- name: 'default'
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```
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If both `configSecret` and `configRawYaml` are defined, only configuration from `configRawYaml` will be used. Values from `configRawYaml` will be ignored.
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## Using VMAlertmanagerConfig
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`VMAlertmanagerConfig` allows delegating notification configuration to the kubernetes cluster users.
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The application owner may configure notifications by defining it at `VMAlertmanagerConfig`.
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With the combination of `VMRule` and `VMServiceScrape` it allows delegating configuration observability to application owners, and uses popular `GitOps` practice.
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Operator combines `VMAlertmanagerConfigs` into a single configuration file for `VMAlertmanager`.
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```yaml
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apiVersion: operator.victoriametrics.com/v1beta1
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kind: VMAlertmanagerConfig
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metadata:
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name: example-email-web
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namespace: production
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spec:
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route:
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receiver: email
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group_interval: 1m
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routes:
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- receiver: email
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matchers:
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- {severity =~ "warning|critical", app_name = "blog"}
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receivers:
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- name: email
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email_configs:
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- to: some-email@example.com
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from: alerting@example.com
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smarthost: example.com:25
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text: ALARM
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```
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#### Special Case
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VMAlertmanagerConfig has enforced namespace matcher.
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Alerts must have a proper namespace label, with the same value as name of namespace for VMAlertmanagerConfig.
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It can be disabled, by setting the following value to the VMAlertmanager: spec.disableNamespaceMatcher: true.
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## behavior without provided config
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If no configuration is provided, operator configures stub configuration with blackhole route. |