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---
stage: Configure
group: Configure
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
---
# Operational Container Scanning **(ULTIMATE)**
> [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/6346) in GitLab 14.8.
To view cluster vulnerabilities, you can view the [vulnerability report](../../application_security/vulnerabilities/index.md).
You can also configure your agent so the vulnerabilities are displayed with other agent information in GitLab.
## View cluster vulnerabilities
Prerequisite:
- You must have at least the Developer role.
To view vulnerability information in GitLab:
1. On the top bar, select **Menu > Projects** and find the project that contains the agent configuration file.
1. On the left sidebar, select **Infrastructure > Kubernetes clusters**.
1. Select the **Agent** tab.
1. Select the agent you want to see the vulnerabilities for.
This information can also be found under [operational vulnerabilities](../../../user/application_security/vulnerability_report/index.md#operational-vulnerabilities).
## Enable cluster vulnerability scanning **(ULTIMATE)**
You can use [cluster image scanning](../../application_security/cluster_image_scanning/index.md)
to scan container images in your cluster for security vulnerabilities.
To begin scanning all resources in your cluster, add a `starboard`
configuration block to your agent configuration with a `cadence` field
containing a CRON expression for when the scans will be run.
```yaml
starboard:
cadence: '0 0 * * *' # Daily at 00:00 (Kubernetes cluster time)
```
The `cadence` field is required. GitLab supports the following types of CRON syntax for the cadence field:
- A daily cadence of once per hour at a specified hour, for example: `0 18 * * *`
- A weekly cadence of once per week on a specified day and at a specified hour, for example: `0 13 * * 0`
It is possible that other elements of the CRON syntax will work in the cadence field, however, GitLab does not officially test or support them.
By default, cluster image scanning will attempt to scan the workloads in all
namespaces for vulnerabilities. The `vulnerability_report` block has a `namespaces`
field which can be used to restrict which namespaces are scanned. For example,
if you would like to scan only the `development`, `staging`, and `production`
namespaces, you can use this configuration:
```yaml
starboard:
cadence: '0 0 * * *'
vulnerability_report:
namespaces:
- development
- staging
- production
```
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