What does the new HAProxy VS Code extension do?

Provides full LSP: autocomplete, validation, hovers, diagnostics tailored to HAProxy sections and versions.

How to install HAProxy LSP for VS Code?

Search 'HAProxy LSP' in extensions marketplace, install, open .cfg—magic starts.

Yes, parses log-format-sd, new binds, deprecations—keeps pace with releases.

Catches most errors editor-side; still run -c for runtime sim.

⚙️ DevOps & Platform Eng

Three VS Code windows blazing. HAProxy config screaming errors. The extension? Last updated 2019. That's when I snapped—and coded my own.

theAIcatchup Apr 08, 2026 4 min read

Built full LSP for HAProxy configs after 5-year abandoned extension 𝕏
Context-aware autocomplete and validation transform plaintext hell into code-like devex 𝕏
Sparks infra LSP wave, like Terraform's 2018 boom—productivity unlock ahead 𝕏

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#HAProxy #LSP #VS Code extension #load balancer config

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Originally reported by dev.to