Docker

Docker language tooling

Dockerfile and Compose support for container configuration, build files, diagnostics, and completions.

Delivery

bundled language tooling where available

Activation

Dockerfile, docker-compose.yml, compose.yml, and related files

Capabilities

Improves Dockerfile instruction completions, hover, symbols, and validation.

Works with YAML schema support for Compose files.

Helps catch common image, instruction, and configuration mistakes before builds run.

Open the project root where Dockerfile and compose files live.

Keep compose files named conventionally so schemas and tooling can identify them.

Use terminal builds for final validation because Docker semantics depend on the daemon and context.

If Compose completions are generic, check YAML schema matching.

If Dockerfile mode is plain text, check file naming and language mode.

If builds fail despite clean diagnostics, inspect the Docker daemon and build context.