emma Governance vs Open Policy Agent Gatekeeper
emma Governance
emma.msOpen Policy Agent Gatekeeper
open-policy-agent.github.ioSide by side
| Figure | emma Governance | Open Policy Agent Gatekeeper |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | — |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 2 |
| Spec score · Cloud Governance Software | 7.8 (#11) | 8.2 (#7) |
| Purpose | emma embeds policies, guardrails, and traceability into cloud, Kubernetes, and on-prem operations. | Gatekeeper is a validating and mutating Kubernetes webhook that enforces CRD-based policies evaluated by Open Policy Agent. |
Plans
Open Policy Agent Gatekeeper
- GatekeeperFree
- Open-source GatekeeperFree
In their own words
emma Governance
emma Governance embeds policy controls and audit trails into cloud, Kubernetes and on-premises operations. A project can specify permitted clouds, regions and environments, then attach policies, budgets and security rules. Checks can run during interface provisioning, API calls, infrastructure-as-code work and CI/CD, with non-compliant deployments blocked. The governance model spans cloud accounts, Kubernetes clusters and namespaces, private clouds and on-premises systems. Projects can restrict residency to selected countries, regions or providers, with requirements enforced during deployment. Roles include operator, owner and auditor, and high-risk actions can be reserved for chosen people or groups. Logs capture who made a deployment or change, where and when; evidence can be exported by project, business unit or jurisdiction. Listed integrations include API, Terraform, Backstage, Jenkins and GitLab. The maker says its platform is in line with GDPR, uses anonymous tokens and AES-256-XTS encryption, and undergoes penetration tests and network audits; it also states its processes are certified under ISO 27001, SOC and HIPAA. The product offers a trial account without a stated duration. Pricing is available by custom quote.
Open Policy Agent Gatekeeper
Open Policy Agent Gatekeeper is a free, open-source Kubernetes policy controller for Linux and self-hosted deployments. It runs as a validating and mutating webhook, enforcing CRD-based policies evaluated by Open Policy Agent. Validation constraints can deny requests, warn, run in dry-run mode or report violations without changing resources. Mutation policies can alter matching resources during admission before validation checks the final object. An audit function periodically evaluates existing cluster resources against constraints to identify pre-existing misconfigurations. The project includes an extensible policy library with parameterized examples, and provider connections to external data such as image registries and directory services. Named integrations or backed services include Azure Policy for Kubernetes, Google Kubernetes Engine Policy Controller, Rancher, AWS EKS Blueprints and Alibaba Cloud. Installation options include prebuilt, development or locally built images and Helm. Gatekeeper requires Kubernetes resources introduced in version 1.16 and cluster-admin permissions for installation. The gator CLI is documented as beta from version 3.11.