第 16 章 Managing containers by using the RHEL web console

You can use the RHEL web console to manage your containers and pods. With the web console, you can create containers as a non-root or root user.

As a root user, you can create system containers with extra privileges and options.
As a non-root user, you have two options:
- To only create user containers, you can use the web console in its default mode - Limited access.
- To create both user and system containers, click Administrative access in the top panel of the web console page.

For details about differences between root and rootless containers, see Special considerations for rootless containers.

16.1. Creating a container checkpoint in the web console
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With the web console, you can set a checkpoint on a running container or an individual application and store its state to disk.

注意

Creating a checkpoint is available only for system containers.

Prerequisites

The container is running.
You have installed the RHEL 10 web console.
For instructions, see Installing and enabling the web console.
The cockpit-podman add-on is installed:
```
# dnf install cockpit-podman
```

Procedure

Log in to the RHEL 10 web console.
Click Podman containers in the main menu.
In the Containers table, select the container you want to modify and click the overflow icon menu and select Checkpoint.
Optional: In the Checkpoint container form, check the options you need:
- Keep all temporary checkpoint files: keep all temporary log and statistics files created by CRIU during checkpointing. These files are not deleted if checkpointing fails for further debugging.
- Leave running after writing checkpoint to disk: leave the container running after checkpointing instead of stopping it.
- Support preserving established TCP connections
Click Checkpoint.

Verification

Click the Podman containers in the main menu. Select the container you checkpointed, click the overflow menu icon and verify that there is a Restore option.