• Policy management
• Policy editor
• Container Network Policy
  • Change the status
  • Container Network Policy editor
  • Configure a Network Policy Alert
• Security Policies project
• Security Policy project selection
  • Scan Execution Policy editor
  • Scan Execution Policies Schema
  • Scan Execution Policy Schema
  • pipeline rule type
  • schedule rule type
    • cluster schema
  • scan action type
  • Example security policies project
  • Example for scan execution policy editor
• Roadmap

Policies

Policies in GitLab provide security teams a way to require scans of their choice to be run whenever a project pipeline runs according to the configuration specified. Security teams can therefore be confident that the scans they set up have not been changed, altered, or disabled. You can access these by navigating to your project’s Security & Compliance > Policies page.

GitLab supports the following security policies:

• Container Network Policy
• Scan Execution Policy

Policy management

The Policies page displays deployed policies for all available environments. You can check a policy’s information (for example, description or enforcement status), and create and edit deployed policies:

1. On the top bar, select Menu > Projects and find your project.
2. On the left sidebar, select Security & Compliance > Policies.

Network policies are fetched directly from the selected environment’s deployment platform while other policies are fetched from the project’s security policy project. Changes performed outside of this tab are reflected upon refresh.

By default, the policy list contains predefined network policies in a disabled state. Once enabled, a predefined policy deploys to the selected environment’s deployment platform and you can manage it like the regular policies.

Note that if you’re using Auto DevOps and change a policy in this section, your auto-deploy-values.yaml file doesn’t update. Auto DevOps users must make changes by following the Container Network Policy documentation.

Policy editor

You can use the policy editor to create, edit, and delete policies:

1. On the top bar, select Menu > Projects and find your group.
2. On the left sidebar, select Security & Compliance > Policies.
   • To create a new policy, select New policy which is located in the Policies page’s header.
   • To edit an existing policy, select Edit policy in the selected policy drawer.

The policy editor has two modes:

• The visual Rule mode allows you to construct and preview policy rules using rule blocks and related controls.

  

• YAML mode allows you to enter a policy definition in .yaml format and is aimed at expert users and cases that the Rule mode doesn’t support.

  

You can use both modes interchangeably and switch between them at any time. If a YAML resource is incorrect or contains data not supported by the Rule mode, Rule mode is automatically disabled. If the YAML is incorrect, you must use YAML mode to fix your policy before Rule mode is available again.

Container Network Policy

The Container Network Policy section provides packet flow metrics for your application’s Kubernetes namespace. This section has the following prerequisites:

• Your project contains at least one environment.
• You’ve installed Cilium.
• You’ve configured the Prometheus service.

If you’re using custom Helm values for Cilium, you must enable Hubble with flow metrics for each namespace by adding the following lines to your Cilium values:

hubble:
  enabled: true
  metrics:
    enabled:
      - 'flow:sourceContext=namespace;destinationContext=namespace'

The Container Network Policy section displays the following information about your packet flow:

• The total amount of the inbound and outbound packets
• The proportion of packets dropped according to the configured policies
• The per-second average rate of the forwarded and dropped packets accumulated over time window for the requested time interval

If a significant percentage of packets is dropped, you should investigate it for potential threats by examining the Cilium logs:

kubectl -n gitlab-managed-apps logs -l k8s-app=cilium -c cilium-monitor

Change the status

To change a network policy’s status:

• Select the network policy you want to update.
• Select Edit policy.
• Select the Policy status toggle to update the selected policy.
• Select Save changes to deploy network policy changes.

Disabled network policies have the network-policy.gitlab.com/disabled_by: gitlab selector inside the podSelector block. This narrows the scope of such a policy and as a result it doesn’t affect any pods. The policy itself is still deployed to the corresponding deployment namespace.

Container Network Policy editor

The policy editor only supports the CiliumNetworkPolicy specification. Regular Kubernetes NetworkPolicy resources aren’t supported.

Rule mode supports the following rule types:

• Labels.
• Entities.
• IP/CIDR. Only the toCIDR block without except is supported.
• DNS.
• Level 4 can be added to all other rules.

Once your policy is complete, save it by selecting Save policy at the bottom of the editor. Existing policies can also be removed from the editor interface by selecting Delete policy at the bottom of the editor.

Configure a Network Policy Alert

You can use policy alerts to track your policy’s impact. Alerts are only available if you’ve installed and configured a Kubernetes Agent for this project.

There are two ways to create policy alerts:

• In the policy editor UI, by clicking Add alert.

• In the policy editor’s YAML mode, through the metadata.annotations property:

  metadata:
    annotations:
      app.gitlab.com/alert: 'true'
  

Once added, the UI updates and displays a warning about the dangers of too many alerts.

Security Policies project

The Security Policies feature is a repository to store policies. All security policies are stored as the .gitlab/security-policies/policy.yml YAML file with this format:

---
scan_execution_policy:
- name: Enforce DAST in every pipeline
  description: This policy enforces pipeline configuration to have a job with DAST scan
  enabled: true
  rules:
  - type: pipeline
    branches:
    - master
  actions:
  - scan: dast
    scanner_profile: Scanner Profile A
    site_profile: Site Profile B
- name: Enforce DAST in every pipeline in main branch
  description: This policy enforces pipeline configuration to have a job with DAST scan for main branch
  enabled: true
  rules:
  - type: pipeline
    branches:
    - main
  actions:
  - scan: dast
    scanner_profile: Scanner Profile C
    site_profile: Site Profile D

Security Policy project selection

When the Security Policy project is created and policies are created within that repository, you must create an association between that project and the project you want to apply policies to:

1. On the top bar, select Menu > Projects and find your project.
2. On the left sidebar, select Security & Compliance > Policies.
3. Select Edit Policy Project, and search for and select the project you would like to link from the dropdown menu.

4. Select Save.

   

Scan Execution Policy editor

Once your policy is complete, save it by selecting Create merge request at the bottom of the editor. You will be redirected to the merge request on the project’s configured security policy project. If one does not link to your project, a security policy project will be automatically created. Existing policies can also be removed from the editor interface by selecting Delete policy at the bottom of the editor.

The policy editor currently only supports the YAML mode. The Rule mode is tracked in the Allow Users to Edit Rule-mode Scan Execution Policies in the Policy UI epic.

Scan Execution Policies Schema

The YAML file with Scan Execution Policies consists of an array of objects matching Scan Execution Policy Schema nested under the scan_execution_policy key. You can configure a maximum of 5 policies under the scan_execution_policy key.

When you save a new policy, GitLab validates its contents against this JSON schema. If you’re not familiar with how to read JSON schemas, the following sections and tables provide an alternative.

Scan Execution Policy Schema

pipeline rule type

This rule enforces the defined actions whenever the pipeline runs for a selected branch.

schedule rule type

This rule enforces the defined actions and schedules a scan on the provided date/time.

cluster schema

Use this schema to define clusters objects in the schedule rule type.

scan action type

This action executes the selected scan with additional parameters when conditions for at least one rule in the defined policy are met.

Note the following:

• You must create the site profile and scanner profile with selected names for each project that is assigned to the selected Security Policy Project. Otherwise, the policy is not applied and a job with an error message is created instead.
• Once you associate the site profile and scanner profile by name in the policy, it is not possible to modify or delete them. If you want to modify them, you must first disable the policy by setting the active flag to false.
• When configuring policies with a scheduled DAST scan, the author of the commit in the security policy project’s repository must have access to the scanner and site profiles. Otherwise, the scan is not scheduled successfully.
• For a secret detection scan, only rules with the default ruleset are supported. Custom rulesets are not supported.
• A secret detection scan runs in normal mode when executed as part of a pipeline, and in historic mode when executed as part of a scheduled scan.
• A container scanning and cluster image scanning scans configured for the pipeline rule type will ignore the cluster defined in the clusters object. They will use predefined CI/CD variables defined for your project. Cluster selection with the clusters object is supported for the schedule rule type. Cluster with name provided in clusters object must be created and configured for the project. To be able to successfully perform the container_scanning/cluster_image_scanning scans for the cluster you must follow instructions for the Cluster Image Scanning feature.

Example security policies project

You can use this example in a .gitlab/security-policies/policy.yml, as described in Security policies project.

---
scan_execution_policy:
- name: Enforce DAST in every release pipeline
  description: This policy enforces pipeline configuration to have a job with DAST scan for release branches
  enabled: true
  rules:
  - type: pipeline
    branches:
    - release/*
  actions:
  - scan: dast
    scanner_profile: Scanner Profile A
    site_profile: Site Profile B
- name: Enforce DAST and secret detection scans every 10 minutes
  description: This policy enforces DAST and secret detection scans to run every 10 minutes
  enabled: true
  rules:
  - type: schedule
    branches:
    - main
    cadence: */10 * * * *
  actions:
  - scan: dast
    scanner_profile: Scanner Profile C
    site_profile: Site Profile D
  - scan: secret_detection
- name: Enforce Secret Detection and Container Scanning in every default branch pipeline
  description: This policy enforces pipeline configuration to have a job with Secret Detection and Container Scanning scans for the default branch
  enabled: true
  rules:
  - type: pipeline
    branches:
    - main
  actions:
  - scan: secret_detection
  - scan: container_scanning
- name: Enforce Cluster Image Scanning on production-cluster every 24h
  description: This policy enforces Cluster Image Scanning scan to run every 24 hours
  enabled: true
  rules:
  - type: schedule
    cadence: '15 3 * * *'
    clusters:
      production-cluster:
        containers:
        - database
        resources:
        - production-application
        namespaces:
        - production-namespace
        kinds:
        - deployment
  actions:
  - scan: cluster_image_scanning

In this example:

• For every pipeline executed on branches that match the release/* wildcard (for example, branch release/v1.2.1), DAST scans run with Scanner Profile A and Site Profile B.
• DAST and secret detection scans run every 10 minutes. The DAST scan runs with Scanner Profile C and Site Profile D.
• Secret detection and container scanning scans run for every pipeline executed on the main branch.
• Cluster Image Scanning scan runs every 24h. The scan runs on the production-cluster cluster and fetches vulnerabilities from the container with the name database configured for deployment with the name production-application in the production-namespace namespace.

Example for scan execution policy editor

You can use this example in the YAML mode of the Scan Execution Policy editor. It corresponds to a single object from the previous example.

name: Enforce Secret Detection and Container Scanning in every default branch pipeline
description: This policy enforces pipeline configuration to have a job with Secret Detection and Container Scanning scans for the default branch
enabled: true
rules:
  - type: pipeline
    branches:
      - main
actions:
  - scan: secret_detection
  - scan: container_scanning

Roadmap

See the Category Direction page for more information on the product direction of Container Network Security.