Compliance as Code: Which Approach Fits Your Team

Every infrastructure team knows they need compliance automation. The question is how to implement it without slowing deployments to a crawl. There are three broad approaches: build your own policies from scratch, use a scanning tool that checks after deployment, or pick a platform with compliance built into the deployment pipeline. Each has real trade-offs.

This isn't a theoretical comparison. We've seen teams try all three and the outcomes are very different depending on team size, regulatory requirements, and how many clouds you're running.

Approach 1: Build Your Own with OPA/Rego

Open Policy Agent with Rego is the gold standard for policy-as-code. It's powerful, flexible, and free. You write policies in Rego (a purpose-built query language), integrate them into your pipeline, and enforce whatever rules you need.

The catch is that writing good Rego takes time and expertise. A basic "no public S3 buckets" policy is a few lines. A comprehensive SOC 2 compliance suite covering all 47 controls across multiple cloud providers is thousands of lines. Most teams start strong, write 10-20 policies, and then run out of capacity to maintain and expand them.

Spacelift has solid OPA integration. You define your policies in Rego, attach them to stacks, and they run automatically during plan. env0 supports custom policy checks in their approval workflows. Both work well if you have someone on the team who knows Rego and can maintain the policy library.

For teams with a dedicated policy engineer, this is the most flexible approach. For teams without one, the policies stagnate after the first quarter.

Approach 2: Post-Deployment Scanning

Tools like Checkov, tfsec, and Bridgecrew scan your Terraform code or your live infrastructure and flag violations. They're fast to set up and cover a wide range of checks out of the box.

The problem is timing. Scanning after code is written (or worse, after deployment) means you're catching issues late. A developer writes a module, opens a PR, the scanner flags 14 violations, the developer spends an hour fixing them. Multiply this by every PR and it becomes a bottleneck that teams either fix or, more commonly, start ignoring.

Snyk acquired Fugue and integrated cloud security scanning into their platform. Prisma Cloud (Palo Alto) does comprehensive cloud security posture management. These are strong tools but they're security-first, not infrastructure-first. They tell you what's wrong but don't help you fix it within your IaC workflow.

Approach 3: Compliance Built Into the Pipeline

This is the approach ops0 takes. Instead of writing policies from scratch or scanning after the fact, compliance checks are built into the deployment pipeline as gates. You select which frameworks apply (SOC 2, CIS, ISO 27001, HIPAA, GDPR, PCI-DSS, or any combination), and the platform runs checks automatically before any infrastructure change reaches production.

ops0 ships with 27+ compliance frameworks covering 47 SOC 2 controls out of the box. You don't write the Rego. You don't maintain a policy library. You select frameworks and the checks run. For teams that need to pass audits but don't have a policy engineering function, this removes the biggest barrier.

The trade-off is flexibility. If you need a highly custom policy that doesn't map to any standard framework, you're better off with raw OPA/Rego. But in practice, most teams need standard compliance frameworks enforced consistently, not bespoke policies for edge cases.

The Hybrid Approach

The smartest teams combine approaches. They use a platform with built-in compliance for standard frameworks (the 80% case) and write custom OPA policies for organization-specific rules (the 20% case).

ops0 supports both. The built-in frameworks handle SOC 2, CIS, HIPAA, and the rest. If you have additional rules specific to your organization, you can add OPA/Rego policies on top. Checkov scanning is also integrated for static analysis of your Terraform before it enters the deployment pipeline.

Spacelift and env0 work well for teams that want maximum policy flexibility and have the Rego expertise to back it up. ops0 works better for teams that want compliance coverage out of the box without hiring a policy specialist.

What Auditors Actually Ask For

Here's something that gets overlooked in technical comparisons: what auditors want to see isn't just that you have policies. They want to see that every deployment went through a compliance check, that you have a record of the results, and that nothing bypassed the gates.

This means your compliance tool needs audit trails, not just pass/fail results. It needs to show when a check ran, what it checked, what passed, what failed, and what happened next. ops0's deployment pipeline records all of this automatically because compliance is part of the deployment flow, not a separate tool with a separate audit trail.

When choosing a compliance approach, think about the audit conversation, not just the technical implementation. The tool that makes your auditor's life easier is the one that saves you the most time.