Infrastructure as Code Security before deployment | Anexia

In the IaC review, we translate technical requirements into verifiable rules for infrastructure changes. These can include permitted network exposures, encryption, access roles and required tags. A rule needs a clear scope: a development environment, a production service and a time-limited test can have different requirements. Otherwise, unclear exceptions lead to permanent workarounds.

For Policy as Code, we consider both the declared configuration and the limits of its evaluation. Some values only become known during planning or deployment. Controls must take effect at the right point and explain their result clearly. With IaC Security, rule changes themselves are versioned and tested. Examples of permitted and prohibited configurations show whether a control works as intended. An exception procedure records the justification, the person responsible and the period of validity. This keeps the technical approval traceable. In this way, the infrastructure code review combines early feedback for developers with controlled enforcement, without treating every deviation as an identical risk.

Scope of services for IaC Security

The agreed scope for the IaC review can include the following results: control catalogue, code checks, plan analysis, exception process and integration into reviews. For each significant result, we define what it is for, who reviews it and in what form it is handed over. This allows development, operations and procurement to assess the same service. In the proposal, vague umbrella terms are replaced by concrete work packages.

Policy as Code also includes coordinating the necessary interfaces with your team. We clarify access, contact persons and available testing options before the relevant implementation steps. Changes to the scope are described together with their impact on effort and sequence. This gives you a clear overview of delivered results, outstanding prerequisites and additional requests.

The key technical decision in IaC Security

Static rules are complemented by examining concrete change plans. Some of the risks that actually arise only become visible once values are resolved. For the infrastructure code review, we document the relevant assumptions and justify the chosen option. Significant alternatives are assessed against the same business requirements. This makes later adjustments easier when load, data volume or organisational responsibility change.

A sound decision also takes maintainability and handover into account. In the IaC review, we check which skills are available internally and what additional support is needed. This links technical possibilities with a realistic operating model. The client can see which tasks will recur after the project and which decisions remain with them.

A formally permitted individual resource can, in combination with routing, identities and existing services, allow unwanted access. In Policy as Code, we treat this point as a concrete test question. A risk is linked to the affected process, its possible impact and a suitable measure. Where prerequisites are still missing, the statement remains explicitly open until the necessary investigation has taken place.

Before rollout, we test deliberately insecure examples, rule coverage and the handling of justified special cases. For IaC Security, we record the initial situation, the tested configuration and the result. Acceptance refers to the agreed scope. Open limitations are documented visibly and assigned to an owned next step. This allows your team to distinguish between proven functionality, a deliberate decision and an assumption that has not yet been confirmed.

Project example as an illustrative scenario

The following scenario is a use case and not a customer reference. A team provisions infrastructure through versioned definitions but only discovers publicly reachable administrative access after deployment. With IaC Security, a concrete change pipeline would be examined. The goal would be to detect known prohibited configurations early while still being able to handle justified exceptions in a traceable way.

For the infrastructure code review, rules would be tied to actual operational requirements. The pilot would include permitted and prohibited network exposures, incomplete encryption settings and missing assignment tags. The decisive factor would be whether an alert explains the affected resource and a sensible correction. An approved exception would have to be time-limited or tied to a clear condition. In addition, we would check whether changes outside the intended pipeline bypass the rules and how such deviations are detected. Reviewing the definitions alone would not be sufficient for this.

Acceptance of the IaC review would show a rejected problematic plan and a successfully approved correction. Planned results would be versioned rules, documented decision paths and a procedure for deviations between the definition and the actual state. The team could then assess which risks are contained automatically and which changes still require an expert architecture or security assessment. New rules would be tested against existing, legitimate configurations before being made mandatory.

Our experience and our engineering approach

We combine custom software development with the technical tasks of introduction and further development. For the infrastructure code review, we bring the perspectives of application, integration and operations into a shared workflow. The business requirements remain connected to the technical decisions. You work with a defined scope of services and traceable results.

Our experience should be concretely verifiable for your project. That is why, in a technical discussion, we explain how we examine the relevant risks, which work results are planned and how your team can assess them. For the IaC review, we align the roles involved with the actual need. Available references are put in context with the respective project and company; confidential customer details are not used as general marketing claims.

Effort for the IaC review

The number of platforms, the quality of existing modules and the complexity of the rules determine the effort for introduction and maintenance. We therefore estimate IaC Security based on a clearly defined scope and explicitly stated prerequisites. An initial analysis step can make sense if key technical information is still missing. Work packages and acceptance criteria can then be agreed on a more reliable basis.

The infrastructure code review can be organised as a limited project, as a joint implementation with your team or with subsequent support. Usage rights, access, documentation and responsibilities are clarified in the contract. Ongoing operating hours, response times and external consumption costs are separate agreements. This makes it clear which services are provided once and which tasks recur after the introduction.

Boundaries of IaC Security

A passed code check does not replace monitoring of actual configuration drift during operations. For Policy as Code, we state this boundary in the proposal. Required additional services are included with their business justification and are not silently assumed. This allows your team to plan suitable internal skills and divide the overall work sensibly among those involved.