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The image sets title, description, version, created, revision and source; the last three known only at build time come from build arguments that default to unknown, and script/docker and script/cibuild pass them. The example app sets its own title and description. Model: opus-5-5
25 lines
1.0 KiB
Docker
25 lines
1.0 KiB
Docker
# An app built on the smallwebwaf image, as under "Deployment" in
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# SPEC.md, which script/example-app builds and checks. The app is
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# busybox's web server, from the nixpkgs in the image, serving one page;
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# a real app copies in its own binary instead.
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#
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# A real app names the smallwebwaf image by digest. This one takes the
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# image script/example-app has just built, or else the one `make docker`
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# builds.
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ARG SWW_IMAGE=smallwebwaf
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FROM ${SWW_IMAGE}
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# Its own title and description, in place of the smallwebwaf image's.
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LABEL org.opencontainers.image.title="smallwebwaf-example-app" \
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org.opencontainers.image.description="An example app built on the smallwebwaf image."
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# Packages the app needs, from the nixpkgs in the image.
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RUN nix-env -iA nixpkgs.busybox
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# The app's page, and a user of its own to run it.
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RUN mkdir /var/www && echo 'hello from the example app' > /var/www/index.html
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RUN useradd --system --no-create-home --shell /usr/sbin/nologin app
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# The app's runit service.
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COPY --chmod=755 app.run /etc/service/app/run
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