Start with the operating model, not the syntax
Terraform and Bicep can both describe Azure infrastructure reliably. The important decision is how the organisation wants infrastructure changes to be reviewed, promoted, reused and supported. Bicep is tightly aligned to Azure Resource Manager and gains new Azure resource support quickly. Terraform uses provider abstractions and an explicit state model, which can be valuable when teams need a common workflow across multiple clouds or platforms.
State and lifecycle
Terraform tracks managed objects in state. That creates responsibilities around state storage, locking, access control, recovery and environment separation, but it also enables a rich planning model. Bicep deployments are evaluated through Azure Resource Manager and do not use a separate Terraform-style state file. Neither approach removes the need for change control, drift detection and pipeline discipline.
Reusable design matters more than tool choice
Poorly structured modules create fragile infrastructure regardless of the language. Establish naming, tagging, network boundaries, identity, policy, observability, backup and secret handling as reusable patterns. Keep environment-specific values separate from reusable architecture and test destructive changes before production.
How AL Group approaches the choice
For Azure-only estates, Bicep can provide a direct and maintainable route. Terraform is often stronger where existing skills, multi-platform automation or a broader provider ecosystem matter. AL Group can work with either model, including migrations from manual deployments or older ARM templates.
AL Group can assess, design, implement and operate the underlying technology rather than stopping at advice.
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