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* port un-synced changed from docs/readme to readme * consistently use `sh` instead of `console` highlight, as it looks like a more appropriate syntax highlight * consistently use `sh` instead of `bash`, as it is shorter * consistently use `yaml` instead of `yml` See syntax codes here https://gohugo.io/content-management/syntax-highlighting/ Signed-off-by: hagen1778 <roman@victoriametrics.com>
266 lines
10 KiB
Markdown
266 lines
10 KiB
Markdown
---
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sort: 4
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weight: 4
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title: Configuration
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menu:
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docs:
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parent: "operator"
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weight: 4
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aliases:
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- /operator/configuration.html
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---
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# Configuration
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Operator configured by env variables, list of it can be found
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on [Variables](./vars.md) page.
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It defines default configuration options, like images for components, timeouts, features.
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In addition, the operator has a special startup mode for outputting all variables, their types and default values.
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For instance, with this mode you can know versions of VM components, which are used by default:
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```sh
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./operator --printDefaults
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# This application is configured via the environment. The following environment variables can be used:
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#
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# KEY TYPE DEFAULT REQUIRED DESCRIPTION
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# VM_USECUSTOMCONFIGRELOADER True or False false
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# VM_CUSTOMCONFIGRELOADERIMAGE String victoriametrics/operator:config-reloader-v0.32.0
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# VM_VMALERTDEFAULT_IMAGE String victoriametrics/vmalert
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# VM_VMALERTDEFAULT_VERSION String v1.93.3
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# VM_VMALERTDEFAULT_USEDEFAULTRESOURCES True or False true
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# VM_VMALERTDEFAULT_RESOURCE_LIMIT_MEM String 500Mi
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# VM_VMALERTDEFAULT_RESOURCE_LIMIT_CPU String 200m
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# ...
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```
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You can choose output format for variables with `--printFormat` flag, possible values: `json`, `yaml`, `list` and `table` (default):
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```sh
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.operator --printDefaults --printFormat=json
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# {
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# 'VM_USECUSTOMCONFIGRELOADER': 'false',
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# 'VM_CUSTOMCONFIGRELOADERIMAGE': 'victoriametrics/operator:config-reloader-v0.32.0',
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# 'VM_VMALERTDEFAULT_IMAGE': 'victoriametrics/vmalert',
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# 'VM_VMALERTDEFAULT_VERSION': 'v1.93.3',
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# ...
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# 'VM_FORCERESYNCINTERVAL': '60s',
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# 'VM_ENABLESTRICTSECURITY': 'true'
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# }
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```
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## Conversion of prometheus-operator objects
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You can read detailed instructions about configuring prometheus-objects conversion in [this document](./migration.md).
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## Helm-charts
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In [helm-charts](https://github.com/VictoriaMetrics/helm-charts) some important configuration parameters are implemented as separate flags in `values.yaml`:
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### victoria-metrics-k8s-stack
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For possible values refer to [parameters](https://github.com/VictoriaMetrics/helm-charts/tree/master/charts/victoria-metrics-k8s-stack#parameters).
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Also, checkout [here possible ENV variables](./vars.md) to configure operator behaviour.
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ENV variables can be set in the `victoria-metrics-operator.env` section.
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```yaml
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# values.yaml
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victoria-metrics-operator:
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image:
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# -- Image repository
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repository: victoriametrics/operator
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# -- Image tag
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tag: v0.35.0
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# -- Image pull policy
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pullPolicy: IfNotPresent
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# -- Tells helm to remove CRD after chart remove
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cleanupCRD: true
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cleanupImage:
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repository: gcr.io/google_containers/hyperkube
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tag: v1.18.0
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pullPolicy: IfNotPresent
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operator:
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# -- By default, operator converts prometheus-operator objects.
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disable_prometheus_converter: false
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# -- Compare-options and sync-options for prometheus objects converted by operator for properly use with ArgoCD
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prometheus_converter_add_argocd_ignore_annotations: false
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# -- Enables ownership reference for converted prometheus-operator objects,
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# it will remove corresponding victoria-metrics objects in case of deletion prometheus one.
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enable_converter_ownership: false
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# -- By default, operator creates psp for its objects.
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psp_auto_creation_enabled: true
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# -- Enables custom config-reloader, bundled with operator.
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# It should reduce vmagent and vmauth config sync-time and make it predictable.
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useCustomConfigReloader: false
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# -- extra settings for the operator deployment. full list Ref: [https://github.com/VictoriaMetrics/operator/blob/master/vars.md](https://github.com/VictoriaMetrics/operator/blob/master/vars.md)
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env:
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# -- default version for vmsingle
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- name: VM_VMSINGLEDEFAULT_VERSION
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value: v1.43.0
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# -- container registry name prefix, e.g. docker.io
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- name: VM_CONTAINERREGISTRY
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value: ""
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# -- image for custom reloader (see the useCustomConfigReloader parameter)
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- name: VM_CUSTOMCONFIGRELOADERIMAGE
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value: victoriametrics/operator:config-reloader-v0.32.0
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# By default, the operator will watch all the namespaces
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# If you want to override this behavior, specify the namespace it needs to watch separated by a comma.
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# Ex: my_namespace1,my_namespace2
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watchNamespace: ""
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# Count of operator instances (can be increased for HA mode)
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replicaCount: 1
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# -- VM operator log level
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# -- possible values: info and error.
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logLevel: "info"
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# -- Resource object
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resources:
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{}
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# limits:
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# cpu: 120m
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# memory: 320Mi
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# requests:
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# cpu: 80m
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# memory: 120Mi
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```
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### victoria-metrics-operator
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For possible values refer to [parameters](https://github.com/VictoriaMetrics/helm-charts/tree/master/charts/victoria-metrics-operator#parameters).
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Also, checkout [here possible ENV variables](./vars.md) to configure operator behaviour.
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ENV variables can be set in the `env` section.
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```yaml
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# values.yaml
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image:
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# -- Image repository
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repository: victoriametrics/operator
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# -- Image tag
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tag: v0.35.0
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# -- Image pull policy
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pullPolicy: IfNotPresent
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operator:
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# -- By default, operator converts prometheus-operator objects.
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disable_prometheus_converter: false
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# -- Compare-options and sync-options for prometheus objects converted by operator for properly use with ArgoCD
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prometheus_converter_add_argocd_ignore_annotations: false
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# -- Enables ownership reference for converted prometheus-operator objects,
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# it will remove corresponding victoria-metrics objects in case of deletion prometheus one.
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enable_converter_ownership: false
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# -- By default, operator creates psp for its objects.
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psp_auto_creation_enabled: true
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# -- Enables custom config-reloader, bundled with operator.
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# It should reduce vmagent and vmauth config sync-time and make it predictable.
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useCustomConfigReloader: false
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# -- extra settings for the operator deployment. full list Ref: [https://github.com/VictoriaMetrics/operator/blob/master/vars.md](https://github.com/VictoriaMetrics/operator/blob/master/vars.md)
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env:
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# -- default version for vmsingle
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- name: VM_VMSINGLEDEFAULT_VERSION
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value: v1.43.0
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# -- container registry name prefix, e.g. docker.io
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- name: VM_CONTAINERREGISTRY
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value: ""
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# -- image for custom reloader (see the useCustomConfigReloader parameter)
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- name: VM_CUSTOMCONFIGRELOADERIMAGE
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value: victoriametrics/operator:config-reloader-v0.32.0
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# By default, the operator will watch all the namespaces
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# If you want to override this behavior, specify the namespace it needs to watch separated by a comma.
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# Ex: my_namespace1,my_namespace2
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watchNamespace: ""
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# Count of operator instances (can be increased for HA mode)
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replicaCount: 1
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# -- VM operator log level
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# -- possible values: info and error.
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logLevel: "info"
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# -- Resource object
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resources:
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{}
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# limits:
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# cpu: 120m
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# memory: 320Mi
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# requests:
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# cpu: 80m
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# memory: 120Mi
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```
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## Namespaced mode
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By default, the operator will watch all namespaces, but it can be configured to watch only specific namespace.
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If you want to override this behavior, specify the namespace:
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- in the `WATCH_NAMESPACE` environment variable.
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- in the `watchNamespace` field in the `values.yaml` file of helm-charts.
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The operator supports only single namespace for watching.
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You can find example of RBAC manifests for single-namespace mode in
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[this file](https://github.com/VictoriaMetrics/operator/blob/master/config/examples/operator_rbac_for_single_namespace.yaml).
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## Monitoring of cluster components
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By default, operator creates [VMServiceScrape](./resources/vmservicescrape.md)
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object for each component that it manages.
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You can disable this behaviour with `VM_DASABLESELFSERVICASCRAPECREATION` environment variable:
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```shell
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VM_DASABLESELFSERVICASCRAPECREATION=false
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```
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Also, you can override default configuration for self-scraping with `ServiceScrapeSpec` field in each deployable resource
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(`vmcluster/select`, `vmcluster/insert`, `vmcluster/storage`, `vmagent`, `vmalert`, `vmalertmanager`, `vmauth`, `vmsingle`):
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## CRD Validation
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Operator supports validation admission webhook [docs](https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/)
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It checks resources configuration and returns errors to caller before resource will be created at kubernetes api.
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This should reduce errors and simplify debugging.
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Validation hooks at operator side must be enabled with flags:
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```sh
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./operator
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--webhook.enable
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# optional configuration for certDir and tls names.
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--webhook.certDir=/tmp/k8s-webhook-server/serving-certs/
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--webhook.keyName=tls.key
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--webhook.certName=tls.crt
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```
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You have to mount correct certificates at give directory.
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It can be simplified with cert-manager and kustomize command:
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```sh
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kustomize build config/deployments/webhook/
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```
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### Requirements
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- Valid certificate with key must be provided to operator
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- Valid CABundle must be added to the `ValidatingWebhookConfiguration`
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### Useful links
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- [k8s admission webhooks](https://banzaicloud.com/blog/k8s-admission-webhooks/)
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- [olm webhooks](https://docs.openshift.com/container-platform/4.5/operators/user/olm-webhooks.html)
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