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DevSecOps & Security Architecture

In traditional environments, security is often a "gate" at the end of the development process. In Cyberun Cloud, security is the pavement on which you drive. We implement a rigorous DevSecOps pipeline that enforces security standards automatically, without slowing down developer velocity.

The "Shift-Left" Philosophy

We believe that the best time to catch a vulnerability is before it is deployed.

1. Secure Supply Chain (Software Composition Analysis)

Every container image pushed to our private registry (registry.cyberun.cloud) undergoes an immediate, deep inspection.

  • Engine: Powered by Trivy.
  • Scope: We scan the OS layer (e.g., Alpine, Debian) and language dependencies (e.g., npm, pip, go.mod).
  • Policy: Images with "Critical" vulnerabilities are automatically quarantined. Kubernetes will refuse to pull them, preventing compromised code from ever starting.

2. Immutable Infrastructure (GitOps)

We treat our cluster state as immutable. FluxCD acts as the continuously vigilant guardian.

  • Drift Detection: If a malicious actor (or a confused admin) manually creates a backdoor user via kubectl, FluxCD detects that this change does not exist in the Git repository.
  • Auto-Remediation: FluxCD instantly reverts the cluster state back to the Git definition, effectively neutralizing manual tampering within seconds.

Network Security Layers

We assume the network is hostile.

  • Zero-Trust Mesh: All node-to-node traffic is encapsulated in WireGuard tunnels. We do not trust the physical network provider.
  • Default Deny Policies: Using Cilium Network Policies (L3/L4), we enforce a strict "Default Deny" posture. Pods cannot talk to each other unless explicitly allowed.
  • Example: The "Frontend" pod can talk to "Backend", but it is cryptographically blocked from reaching the "Database".

Compliance & Reporting

For our enterprise partners, we provide automated transparency.

  • SBOM Generation: We can generate a Software Bill of Materials (SBOM) for any running workload, detailing exactly which libraries and versions are present.
  • Vulnerability Dashboards: Partners get a real-time view of their security posture via the Harbor console, showing trends in vulnerability remediation.

Git as an Audit Log

At Cyberun Cloud, we do not use black-box management consoles for changes. All infrastructure changes must be made via Git commits. This provides a natural, immutable audit trail.

  • Who: The author of the Git Commit (verified via GPG signature).
  • What: The precise code changes shown by git diff.
  • When: The timestamp of the commit.
  • Why: The description in the Pull Request and linked tickets (Jira/Linear).

Auditors do not need to log in to servers to inspect logs; they simply review the Git repository history to complete compliance checks.