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Automatic update Grafana datasource docs from VictoriaMetrics/grafana-datasource@ef5cfe6 (#5700)

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@ -11,6 +11,7 @@ aliases:
---
# VictoriaMetrics datasource for Grafana
The [VictoriaMetrics](http://docs.victoriametrics.com/) datasource plugin allows you to query and visualize
data from VictoriaMetrics in Grafana.
@ -25,8 +26,8 @@ data from VictoriaMetrics in Grafana.
Thanks to VictoriaMetrics compatibility with Prometheus API users can use
[Prometheus datasource](https://docs.victoriametrics.com/#grafana-setup) for Grafana to query data from VictoriaMetrics.
But with time, Prometheus and VictoriaMetrics diverge more and more. After some unexpected changes to Prometheus datasource
we decided to create a datasource plugin specifically for VictoriaMetrics.
But with time, Prometheus and VictoriaMetrics diverge more and more. After some unexpected changes to Prometheus
datasource we decided to create a datasource plugin specifically for VictoriaMetrics.
The benefits of using VictoriaMetrics plugin are the following:
* [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html) functions support;
@ -37,8 +38,8 @@ The benefits of using VictoriaMetrics plugin are the following:
## Installation
Installing VictoriaMetrics Grafana datasource [requires](https://grafana.com/docs/grafana/latest/setup-grafana/configure-grafana/#allow_loading_unsigned_plugins)
the following changes to Grafana's `grafana.ini` config:
Installing VictoriaMetrics Grafana datasource [requires](https://grafana.com/docs/grafana/latest/setup-grafana/configure-grafana/#allow_loading_unsigned_plugins) the following changes to Grafana's `grafana.ini` config:
``` ini
[plugins]
allow_loading_unsigned_plugins = victoriametrics-datasource
@ -54,23 +55,17 @@ For `grafana-operator` users, please adjust `config:` section in your `kind=Graf
See [why VictoriaMetrics datasource is unsigned](#why-victoriaMetrics-datasource-is-unsigned).
For detailed instructions on how to install the plugin on Grafana Cloud or
locally, please checkout the [Plugin installation docs](https://grafana.com/docs/grafana/latest/plugins/installation/).
For detailed instructions on how to install the plugin on Grafana Cloud or locally, please checkout the [Plugin installation docs](https://grafana.com/docs/grafana/latest/plugins/installation/).
### Install via Docker
[VictoriaMetrics repo](https://github.com/victoriaMetrics/victoriaMetrics) provides a complete
[docker-compose](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#docker-compose-environment-for-victoriametrics)
environment to spin-up all required components via Docker.
To begin, clone [VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics) repository and follow
steps described in the [README](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#docker-compose-environment-for-victoriametrics).
[VictoriaMetrics repo](https://github.com/victoriaMetrics/victoriaMetrics) provides a complete [docker-compose](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#docker-compose-environment-for-victoriametrics) environment to spin-up all required components via Docker.
To begin, clone [VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics) repository and follow steps described in the [README](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker#docker-compose-environment-for-victoriametrics).
### Grafana Provisioning
Provision of Grafana plugin requires to create
[datasource config file](http://docs.grafana.org/administration/provisioning/#datasources).
Provision of Grafana plugin requires to create [datasource config file](http://docs.grafana.org/administration/provisioning/#datasources).
Example of config file for provisioning VictoriaMetrics datasource is the following:
@ -152,9 +147,7 @@ docker-compose -f docker-compose.yaml up
When Grafana starts successfully datasources should be present on the datasources tab
<p>
<img src="provision_datasources.png" width="800" alt="Configuration">
</p>
<img src="provision_datasources.webp" width="800" alt="Configuration">
### Install in Kubernetes
@ -187,17 +180,17 @@ extraInitContainers:
mountPath: /var/lib/grafana
```
For `grafana-operator` users, the above configuration should be done for the part
`/spec/deployment/spec/template/spec/initContainers` of your `kind=Grafana` resource.
For `grafana-operator` users, the above configuration should be done for the part `/spec/deployment/spec/template/spec/initContainers` of your `kind=Grafana` resource.
This example uses init container to download and install plugin. To allow Grafana using this container as a sidecar set the following config:
This example uses init container to download and install plugin. To allow Grafana using this container as a sidecar
set the following config:
```yaml
sidecar:
datasources:
initDatasources: true
enabled: true
```
See more about chart settings [here](https://github.com/grafana/helm-charts/blob/541d97051de87a309362e02d08741ffc868cfcd6/charts/grafana/values.yaml)
Another option would be to build custom Grafana image with plugin based on same installation instructions.
@ -249,13 +242,11 @@ spec:
allow_loading_unsigned_plugins: victoriametrics-datasource
```
See [Grafana operator reference](https://grafana-operator.github.io/grafana-operator/docs/grafana/) to find more about
Grafana operator.
See [Grafana operator reference](https://grafana-operator.github.io/grafana-operator/docs/grafana/) to find more about Grafana operator.
This example uses init container to download and install plugin.
### Dev release installation
1. To download plugin build and move contents into Grafana plugins directory:
``` bash
@ -267,21 +258,26 @@ This example uses init container to download and install plugin.
1. Restart Grafana
## Getting started development
### 1. Configure Grafana
Installing dev version of Grafana plugin requires to change `grafana.ini` config to allow loading unsigned plugins:
``` ini
# Directory where Grafana will automatically scan and look for plugins
plugins = {{path to directory with plugin}}
```
``` ini
[plugins]
allow_loading_unsigned_plugins = victoriametrics-datasource
```
### 2. Run the plugin
In the project directory, you can run:
```
# install dependencies
yarn install
@ -296,10 +292,13 @@ yarn build:zip
### 3. How to build backend plugin
From the root folder of the project run the following command:
```
make victoriametrics-backend-plugin-build
```
This command will build executable multi-platform files to the `dist` folder for the following platforms:
* linux/amd64
* linux/arm64
* linux/arm
@ -309,25 +308,28 @@ This command will build executable multi-platform files to the `dist` folder for
* windows
### 4.How to build frontend plugin
From the root folder of the project run the following command:
```
make victorimetrics-frontend-plugin-build
```
This command will build all frontend app into `dist` folder.
### 5. How to build frontend and backend parts of the plugin:
When frontend and backend parts of the plugin is required, run the following command from
the root folder of the project:
When frontend and backend parts of the plugin is required, run the following command from the root folder of the project:
```
make victoriametrics-datasource-plugin-build
```
This command will build frontend part and backend part or the plugin and locate both
parts into `dist` folder.
This command will build frontend part and backend part or the plugin and locate both parts into `dist` folder.
## How to use WITH templates
The `WITH` templates feature simplifies the construction and management of complex queries.
You can try this feature in the [WITH templates playground](https://play.victoriametrics.com/select/accounting/1/6a716b0f-38bc-4856-90ce-448fd713e3fe/expand-with-exprs).
The `WITH` templates feature simplifies the construction and management of complex queries. You can try this feature in the [WITH templates playground](https://play.victoriametrics.com/select/accounting/1/6a716b0f-38bc-4856-90ce-448fd713e3fe/expand-with-exprs).
The "WITH templates" section allows you to create expressions with templates that can be used in dashboards.
@ -349,11 +351,13 @@ WITH expressions are stored in the datasource object. If the dashboard gets expo
cpuIdle = sum(rate(node_cpu_seconds_total{mode='idle',commonFilters}[5m]))
```
You can specify a comment before the variable and use markdown in it. The comment will be displayed as a hint during auto-completion. The comment can span multiple lines.
You can specify a comment before the variable and use markdown in it. The comment will be displayed as a hint during
auto-completion. The comment can span multiple lines.
### Using WITH Expressions
After saving the template, you can enter it into the query editor field:
```
((cpuCount - cpuIdle) * 100) / cpuCount
```
@ -368,6 +372,7 @@ WITH (
)
((cpuCount - cpuIdle) * 100) / cpuCount
```
To view the raw query in the interface, enable the `Raw` toggle.
## How to make new release
@ -377,36 +382,30 @@ To view the raw query in the interface, enable the `Raw` toggle.
* `git tag -s v1.xx.y` in `master` branch
1. Run `TAG=v1.xx.y make build-release` to build and package binaries in `*.tar.gz` release archives.
1. Run `git push origin v1.xx.y` to push the tag created `v1.xx.y` at step 2 to public GitHub repository
1. Go to <https://github.com/VictoriaMetrics/grafana-datasource/releases> and verify that draft release with the name `TAG` has been created
and this release contains all the needed binaries and checksums.
1. Go to <https://github.com/VictoriaMetrics/grafana-datasource/releases> and verify that draft release with the name `TAG` has been created and this release contains all the needed binaries and checksums.
1. Remove the `draft` checkbox for the `TAG` release and manually publish it.
## FAQ
### Why VictoriaMetrics datasource is unsigned?
Based on our previous experience of [developing Grafana plugins](https://grafana.com/grafana/plugins/vertamedia-clickhouse-datasource/)
the signing procedure was a formal act. But when we tried [to sign the plugin](https://grafana.com/docs/grafana/latest/developers/plugins/publish-a-plugin/sign-a-plugin/)
we were told by GrafanaLabs representative the plugin falls into a Commercial signature level. It matters not
if plugin or VictoriaMetrics itself are opensource. The announced cost of Commercial signature level was much higher
than expected, so we interrupted the procedure.
Based on our previous experience of [developing Grafana plugins](https://grafana.com/grafana/plugins/vertamedia-clickhouse-datasource/) the signing procedure was a formal act. But when we tried [to sign the plugin](https://grafana.com/docs/grafana/latest/developers/plugins/publish-a-plugin/sign-a-plugin/)
we were told by GrafanaLabs representative the plugin falls into a Commercial signature level.
It matters not if plugin or VictoriaMetrics itself are opensource. The announced cost of Commercial signature level was much higher than expected, so we interrupted the procedure.
### How to convert dashboard from Prometheus to VictoriaMetrics datasource?
Make sure that VictoriaMetrics datasource plugin is [installed](#installation), and a new datasource is created from the plugin.
Each panel in Grafana dashboard has a datasource dropdown when in Edit mode. Just choose the VictoriaMetrics datasource
instead of Prometheus datasource in dropdown.
Each panel in Grafana dashboard has a datasource dropdown when in Edit mode. Just choose the VictoriaMetrics datasource instead of Prometheus datasource in dropdown.
If datasource is configured via Grafana variable, then change variable to VictoriaMetrics datasource type.
### Why VictoriaMetrics datasource doesn't support alerting?
Grafana doesn't allow forwarding Alert requests to alerting API /api/v1/rules for plugins which are not of Prometheus
or Loki type. See more details [here](https://github.com/VictoriaMetrics/grafana-datasource/issues/59#issuecomment-1541456768).
Grafana doesn't allow forwarding Alert requests to alerting API /api/v1/rules for plugins which are not of Prometheus or Loki type. See more details [here](https://github.com/VictoriaMetrics/grafana-datasource/issues/59#issuecomment-1541456768).
## License
This project is licensed under the [AGPL-3.0-only](https://github.com/VictoriaMetrics/grafana-datasource/blob/main/LICENSE).
This project is licensed under
the [AGPL-3.0-only](https://github.com/VictoriaMetrics/grafana-datasource/blob/main/LICENSE).

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