K9s Plugins
You set up k9s plugins by adding custom command rules to your local tool folder. These rules bind keyboard keys to shell scripts that run against your selected cluster items. Teams often share these plugin files so every engineer can run fast cluster checks. Still, local scripts use the broad cluster role of the logged-in user. One wrong key press can delete live pods or print secret keys on the screen. How k9s plugins work in your terminal The terminal tool reads a local plugin file when it
Backstage Security Plugins: the complete guide
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You set up k9s plugins by adding custom command rules to your local tool folder. These rules bind keyboard keys to shell scripts that run against your selected cluster items. Teams often share these plugin files so every engineer can run fast cluster checks. Still, local scripts use the broad cluster role of the logged-in user. One wrong key press can delete live pods or print secret keys on the screen.
How k9s plugins work in your terminal
The terminal tool reads a local plugin file when it starts up. Each entry in this file links a short key press to an external command. You also pick which cluster view can trigger that specific key press. For example, a rule might work only when you look at pods or deployments. When you highlight an item and press the key, the tool fills in variables. It passes the item name, namespace, and cluster context to your local shell script. The command can run in the background or take over the terminal screen. Teams use this setup to tail logs, debug containers, or trigger fast rollouts. The terminal tool does not check what the script does inside the cluster. It just runs the binary on your laptop using your active cluster credentials.
What native cluster roles solve and what they miss
Kubernetes role-based rules decide which users can view or change cluster resources. You can bind a developer group to a role that blocks pod deletion. When a user presses a plugin key, the cluster checks that native role first. This setup stops unauthorized users from running admin tools against production namespaces. Still, native roles are coarse and apply to whole resource types at once. An engineer often needs exec or log rights to fix a broken app. Once they have that role, any local plugin can run deep shell commands. Native cluster setups decide who logs in, not what individual commands do in flight. They do not ask for peer approval when a plugin runs a risky script. They also do not mask sensitive data like emails or card numbers in log output. If a pod prints phone numbers or national IDs, the screen shows the raw text. Moreover, standard cluster logs only show that an exec session started on a pod. They do not record the exact shell commands that the plugin ran inside the container.
Managing shared scripts across engineering teams
Many platform teams store shared plugin files in a central git repo. Engineers pull this repo to keep their local shortcuts in sync with the team. This approach saves time, but it creates drift across different laptops. One engineer might have an old script version that targets the wrong resource group. Another engineer might edit their local file and remove a safety prompt. Because the scripts run on client machines, central teams cannot enforce a single version. You also have to install every helper binary on every developer laptop. If a plugin calls a log parser or a debug tool, that binary must exist locally. When an incident happens, a missing binary breaks the shortcut right when you need it. Moving command controls and data checks to the cluster path fixes this local drift. It lets engineers keep their fast terminal workflow while central rules inspect every action.
Backstage Security Plugins: architecture patterns and best practices
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Frequently asked questions
Where do k9s plugins run when I press a shortcut key?
They run as local child processes directly on your workstation. Those local processes then send requests to the cluster using your active kubeconfig credentials.
Can k9s plugins bypass Kubernetes RBAC rules?
No, every command triggered by a plugin still goes through the cluster API server. If your user role lacks permission for an action, the cluster rejects the request.
How can teams stop plugins from printing sensitive data in logs?
Local terminal plugins cannot filter sensitive text on their own. You need an inspection step in the traffic path that rewrites matched fields in results.