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Version: 1.17

Images

The Images tab allows you to manage local container images via the application Graphical User Interface. Depending on the container engine selected, the options include:

  • Building container images from a local Dockerfile.
  • Pull images from a registry and push images to a registry.
  • Delete, and scan local images.

To view how to manage container images using the command line, refer to the Images section in the Tutorials.

Image Management Options​

  • Delete: This option is only available using the container engine dockerd (moby). Images can be selected from the display view and deleted using the Delete button.

  • All Images: This option is only available using the container engine containerd (nerdctl) and k8s.io namespace. This checkbox can be marked to list all images including default application images in the Rancher resource group.

  • Namespace: This option is only available using the container engine containerd (nerdctl). You can select a specific namespace in the cluster via the dropdown, which will then display the associated images.

  • Filter: Accepts either text or numbered input to display filtered images.

Scanning Images​

This feature uses Trivy to scan your images for vulnerabilities and configuration issues.

To scan an image:

  1. From the image list, find the image you want to scan.
  2. Click â‹® > Scan.
  3. A summary of the vulnerabilities, sorted by the level of severity, are displayed.
  4. Click > to view the details of each vulnerability, including reference links to learn more about the particular vulnerability.

Adding Images​

Pulling Images​

Use this option to pull images from a registry to your virtual machine.

To pull an image:

  1. Click the Add Image button in the top-right corner.
  2. Click on the Pull tab.
  3. Enter the name of the image to pull.

    Note: By default, images are pulled from Docker Hub which uses the repo/image[:tag] format. To pull from other registries, include the hostname registry.example.com/repo/image[:tag].

  4. Click Pull.

Building Images​

Use this option to build an image and add it to your virtual machine.

To build an image:

  1. Click the Add Image button in the top-right corner.
  2. Click on the Build tab.
  3. Enter a name for the image being built. E.g., repo/image, repo/image:tag, registry.example.com/repo/image, or registry.example.com/repo/image:tag.
  4. Click Build.
  5. In the file browser, select the Dockerfile to build an image with.