A three-way comparison of the infrastructure-as-code tools that actually matter in 2026: the Terraform/OpenTofu fork that split one tool into two, and Pulumi's bet that real programming languages beat a config DSL. The architectural differences honestly, the state story, where each genuinely wins, and what is worth migrating.
Hashicorp
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Terraform vs OpenTofu vs Pulumi in 2026 -
Consul Service Discovery and Service Mesh How HashiCorp Consul turns service discovery from static config into dynamic, health-aware runtime queries — its DNS and HTTP interfaces, health checking, and KV store — then grows into a full service mesh with mTLS between services.
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HashiCorp Nomad: A Simpler Kubernetes Alternative HashiCorp Nomad as a simpler alternative to Kubernetes — a single binary that schedules containers, VMs, and raw binaries — covering its model, where it beats Kubernetes on operational overhead, and where its smaller ecosystem costs you.
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OpenTofu vs Terraform: The Fork One Year In The Terraform and OpenTofu fork, one year on — what HashiCorp's BSL relicensing actually changed, how the two tools have diverged since, and how to decide which one to standardize on for the next decade.
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Vault Beyond Secrets: PKI, SSH CA, and Dynamic DB Credentials The parts of HashiCorp Vault that beat a key-value store — dynamic database credentials generated on demand, a PKI engine for short-lived certificates, an SSH CA, and transit encryption — and how to put them into production.
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Secrets Management with HashiCorp Vault A practical guide to HashiCorp Vault — deploying it in production, using dynamic secrets, issuing certificates with the PKI engine, authenticating workloads with AppRole and Kubernetes auth, and integrating with CI/CD pipelines.