Getting Started¶
Before you Begin¶
You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. If you do not already have a cluster, you can create one by installing minikube or kind, or you can use one of these Kubernetes playgrounds:
You also need the starboard
command to be installed, e.g. From the Binary Releases. By default, it will use the same
configuration as kubectl to communicate with the cluster.
Scanning Workloads¶
The easiest way to get started with Starboard is to use an imperative starboard
command, which allows ad hoc scanning
of Kubernetes workloads deployed in your cluster.
To begin with, execute the following one-time setup command:
starboard install
The install
subcommand creates the starboard
namespace, in which Starboard executes Kubernetes jobs to perform
scans. It also sends custom security resources definitions to the Kubernetes API and creates default configuration
objects:
kubectl api-resources --api-group khulnasoft.github.io
Result
NAME SHORTNAMES APIVERSION NAMESPACED KIND
ciskubebenchreports kubebench khulnasoft.github.io/v1alpha1 false CISKubeBenchReport
clustercompliancedetailreports compliancedetail khulnasoft.github.io/v1alpha1 false ClusterComplianceDetailReport
clustercompliancereports compliance khulnasoft.github.io/v1alpha1 false ClusterComplianceReport
clusterconfigauditreports clusterconfigaudit khulnasoft.github.io/v1alpha1 false ClusterConfigAuditReport
clustervulnerabilityreports clustervuln,clustervulns khulnasoft.github.io/v1alpha1 false ClusterVulnerabilityReport
configauditreports configaudit khulnasoft.github.io/v1alpha1 true ConfigAuditReport
kubehunterreports kubehunter khulnasoft.github.io/v1alpha1 false KubeHunterReport
vulnerabilityreports vuln,vulns khulnasoft.github.io/v1alpha1 true VulnerabilityReport
Tip
There's also a starboard uninstall
subcommand, which can be used to remove all resources created by Starboard.
As an example let's run in the current namespace an old version of nginx
that we know has vulnerabilities:
kubectl create deployment nginx --image nginx:1.16
Run the vulnerability scanner to generate vulnerability reports:
starboard scan vulnerabilityreports deployment/nginx
Behind the scenes, by default this uses Trivy in Standalone mode to identify vulnerabilities in the container images associated with the specified Deployment. Once this has been done, you can retrieve the latest vulnerability reports for this workload:
starboard get vulnerabilityreports deployment/nginx -o yaml
For a Deployment with N containers Starboard will create N instances of vulnerabilityreports.khulnasoft.github.io
resources. To retrieve a vulnerability report for the specified container use the --container
flag:
starboard get vulnerabilityreports deployment/nginx --container nginx -o yaml
Tip
It is possible to retrieve vulnerability reports with the kubectl get
command, but it requires knowledge of
Starboard implementation details. In particular, naming convention and labels and label selectors used to associate
vulnerability reports with Kubernetes workloads.
$ kubectl get vulnerabilityreports -o wide
NAME REPOSITORY TAG SCANNER AGE CRITICAL HIGH MEDIUM LOW UNKNOWN
replicaset-nginx-6d4cf56db6-nginx library/nginx 1.16 Trivy 41m 21 50 34 104 0
To read more about custom resources and label selectors check Custom Resource Definitions.
Moving forward, let's take the same nginx
Deployment and audit its Kubernetes configuration. As you remember we've
created it with the kubectl create deployment
command which applies the default settings to the deployment descriptors.
However, we also know that in Kubernetes the defaults are usually the least secure.
Run the scanner to audit the configuration using the built-in configuration checker:
starboard scan configauditreports deployment/nginx
Retrieve the configuration audit report:
starboard get configauditreports deployment/nginx -o yaml
or
kubectl get configauditreport -o wide
Result
NAME SCANNER AGE CRITICAL HIGH MEDIUM LOW
replicaset-nginx-78449c65d4 Starboard 75s 0 0 6 7
Generating HTML Reports¶
Once you scanned the nginx
Deployment for vulnerabilities and checked its configuration you can generate an HTML
report of identified risks and open it in your web browser:
starboard report deployment/nginx > nginx.deploy.html
open nginx.deploy.html
What's Next?¶
- Learn more about the available Starboard commands and scanners, such as kube-bench or kube-hunter, by running
starboard help
. - Read up on Infrastructure Scanners integrated with Starboard.