---
url: /en/build/build-node.md
---
When using Cloud Native Build, the essence is to dispatch build tasks to various `build clusters` for execution. The clusters execute the build tasks using the specified Docker image as the build environment.

## Configuration Method

In the pipeline configuration, specify the `pipeline.runner.tags` property to select different build clusters. Specify the `pipeline.runner.cpus` property to configure the maximum number of `CPU` cores to be used.

Administrators can refer to the [System Runner Configuration](../../paas/system-runner.md) to add build cluster nodes and configure default tags for users to utilize.

Users may omit the `tags` property to use the build cluster under the default tag. If additional requirements exist, such as the need to use a `arm64/v8` architecture build cluster, administrators can add build nodes of the corresponding architecture and configure the appropriate tags.

Example:

```yaml title=".cnb.yml"
main:
  push:
    # Omit the tags property to use the build cluster under the default tag
    - stages:
        - name: uname
          script: uname -a
    # After the administrator configures the build cluster node and tag for the corresponding architecture, specify execution on an arm64/v8 architecture build cluster
    - runner:
        tags: cnb:arch:arm64:v8
      stages:
        - name: uname
          script: uname -a
```