Clair vs KubeArmor
Clair
clairproject.orgKubeArmor
kubearmor.ioSide by side
| Figure | Clair | KubeArmor |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Container Security Software | 8.0 (#10) | 8.6 (#4) |
| Deployment | Clair supports microservice, monolithic, CI pipeline, and disconnected deployment methods. | The support matrix documents Kubernetes, non-Kubernetes container, virtual-machine, and bare-metal workload deployments. |
| Purpose | Clair continuously scans container images for vulnerabilities and security problems. | KubeArmor is an open-source, cloud-native runtime security system that hardens workloads and enforces security policies. |
| Support | The project directs questions to its Google Group and bug reports to GitHub Issues. | Project-level questions can be directed to the maintainer group by email, CNCF Slack, GitHub Discussions, or GitHub Issues. |
Plans
In their own words
Clair
Clair is free, self-hosted software that continuously scans container images for vulnerabilities in operating-system bases, installed packages, and programming-language components. Clients use its API to index images and match them against known vulnerabilities. Clair updates its vulnerability database as new issues appear and can reanalyze images without rereading their complete contents. It supports OCI Distribution and Docker v2 images, and lists RHEL, Alpine, Ubuntu, Debian, Oracle, Photon, and SUSE distributions, plus Java, Python, Golang, and Javascript. Deployment options include microservices, monolithic installations, CI pipelines, and disconnected environments. Clair can run as an indexer, matcher, notifier, or combo process. It uses PostgreSQL for persistence and is released as a Quay.io container, with the clairctl command-line tool among its artifacts. Clair runs on Linux, supports registry scanning, and is licensed under Apache 2.0. Runtime protection is not provided.
KubeArmor
KubeArmor is an open-source runtime security system for enforcing policies on cloud-native workloads. It uses Linux Security Modules such as AppArmor, SELinux, and BPF-LSM, with eBPF for alerts, telemetry, and container-process tracking. Policies can restrict process execution, file access, networking operations, and resource use. Container policies support Allow, Audit, and Block actions, with Block as the default; system-call monitoring is audit-only. Kubernetes policies can target pods through labels and label expressions, and rules can match paths, network protocols, capabilities, and system calls. The deployment matrix covers Kubernetes, non-Kubernetes containers, virtual machines, and bare-metal hosts. It lists Kubernetes environments including GKE, AKS, OKE, IKS, EKS, OpenShift, Rancher, and DigitalOcean Kubernetes, but support varies by operating system, architecture, and enforcement mode. Some environments are observability-only, and VMware Tanzu entries are under construction. KubeArmor is a community-governed CNCF Sandbox project. The free plan is free; installation guidance uses Helm and kubectl.