commit c67638d19c0de14b40a31504b47cea39e89b54be · knotbin.com/blog

+12 -4

Dockerfile

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       WORKDIR /deno-dir/

     

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       RUN chown -R deno:deno /deno-dir

     

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       COPY . .

     

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       RUN deno cache main.ts

     

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       RUN deno task build

     

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       # We don't copy files here anymore - they will be copied at runtime

     

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       # from the read-only mounted volume

     

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       # Cache dependencies

     

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       RUN mkdir -p /src

     

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       COPY deno.json /src/

     

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       WORKDIR /src

     

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       RUN deno cache -r deno.json

     

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       # Switch back to deno-dir (our actual runtime directory)

     

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       WORKDIR /deno-dir/

     

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       EXPOSE 8000

     

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       CMD ["run", "-A", "main.ts"]

     

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       # Command is now handled by docker-compose entrypoint

+14 -2

docker-compose.yml

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       services:

     

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         deno-app:

     

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           build: .

     

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           # Copy files from . to deno-code volume on start

     

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           entrypoint: >

     

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             sh -c "

     

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               cp -r /src/* /deno-dir/ &&

     

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               deno run -A main.ts

     

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             "

     

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           # Mount source code as read-only at different path for copying

     

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           volumes:

     

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             - .:/deno-dir

     

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             - .:/src:ro

     

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             - deno-code:/deno-dir

     

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           ports:

     

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             - "8001:8000"

     

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           environment:

     

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             - DENO_ENV=production

     

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           command: ["deno", "run", "-A", "main.ts"]

     

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       volumes:

     

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         deno-code:

     

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           # This ensures the volume is recreated each time

     

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           name: "deno-code-${COMPOSE_PROJECT_NAME:-default}"