- Lab
- A Cloud Guru
Hardening a kops Default Deployment with Kube-bench
This lab guides the student through the creation of a Kubernetes cluster using the kops installer. After the cluster is initialized, the Aquasec kube-bench utility is used to evaluate the master node configuration against the CIS Benchmark. Then, three failed tests are remediated, by manually updating the kube-apiserver manifest.
Path Info
Table of Contents
-
Challenge
Use kops to Create the Cluster
- Run the provided k8s script and create the Kubernetes cluster.
- Validate the cluster.
Note: This will take some time to come up. Give this step 5 to 10 minutes to complete.
-
Challenge
Retrieve a Connect String from Amazon AWS and Connect to the Master Node
- Use the Amazon AWS Console and retrieve a connect string for the master node. Then use ssh to connect to the master node.
Note: You can get the connection information from the output provided when you create the cluster.
-
Challenge
Run the AquaSec kube-bench Utility on the Master Node
- Using Docker, pull down the latest
kube-bench
image. - Execute a
kube-bench
run against themaster
node and output the results to a file.
- Using Docker, pull down the latest
-
Challenge
Remediate Failed Tests 1.2.8, 1.2.18, and 1.2.21
- Use the process status command to look at the current apiserver arguments.
- Use the vi editory as super user to edit the kube apiserver manifest.
- Edit the test recommendations per the remediation listed in the kube-bench report.
- Rerun the kube-bench report after the api server has restarted.
- Compare the old and new reports using the Linux diff command.
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