114 lines
3.1 KiB
Docker
114 lines
3.1 KiB
Docker
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# Lean Alpine-based image for SimpleshopTheme.
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#
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# Builder and runner both use Alpine (musl). The vix NIF is compiled against
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# Alpine's system libvips instead of the glibc-linked precompiled binary.
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#
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# Build: docker build -t simpleshop_theme .
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# Run: docker run --rm -p 4000:4000 \
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# -e SECRET_KEY_BASE=$(mix phx.gen.secret) \
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# -e DATABASE_PATH=/data/simpleshop_theme.db \
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# -e PHX_HOST=localhost \
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# -v simpleshop_data:/data \
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# simpleshop_theme
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#
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# Images:
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# https://hub.docker.com/r/hexpm/elixir/tags?name=alpine
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# https://hub.docker.com/_/alpine
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ARG ELIXIR_VERSION=1.19.5
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ARG OTP_VERSION=28.2
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ARG ALPINE_VERSION=3.23.3
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ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-alpine-${ALPINE_VERSION}"
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ARG RUNNER_IMAGE="alpine:${ALPINE_VERSION}"
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# --- Builder ---
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FROM ${BUILDER_IMAGE} AS builder
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# Build deps: C compiler for NIFs, git for hex deps, vips-dev for image processing
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RUN apk add --no-cache build-base git vips-dev
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WORKDIR /app
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RUN mix local.hex --force && mix local.rebar --force
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ENV MIX_ENV="prod"
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# Use Alpine's system libvips instead of the glibc-linked precompiled binary
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ENV VIX_COMPILATION_MODE="PLATFORM_PROVIDED_LIBVIPS"
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# Install mix dependencies
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COPY mix.exs mix.lock ./
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RUN mix deps.get --only $MIX_ENV
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RUN mkdir config
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# Compile dependencies (config needed first)
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COPY config/config.exs config/${MIX_ENV}.exs config/
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RUN mix deps.compile
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# Install tailwind and esbuild CLI tools
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RUN mix assets.setup
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# Copy priv in layers ordered by change frequency.
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# Mockups/fonts are stable; migrations and seeds change more often.
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COPY priv/static/mockups priv/static/mockups
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COPY priv/static/fonts priv/static/fonts
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COPY priv/static/images priv/static/images
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COPY priv/static/favicon.ico priv/static/robots.txt priv/static/
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COPY priv/repo priv/repo
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COPY priv/gettext priv/gettext
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# Application code and frontend assets (change most often)
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COPY lib lib
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COPY assets assets
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# Compile the application
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RUN mix compile
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# Build assets (both tailwind profiles + esbuild + phx.digest)
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RUN mix assets.deploy
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# Remove gzipped copies of mockup images — WebP is already compressed,
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# gzip saves ~0% and just wastes space in the release
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RUN find priv/static/mockups -name "*.gz" -delete 2>/dev/null || true
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# Runtime config doesn't need recompilation
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COPY config/runtime.exs config/
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# Release overlay scripts
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COPY rel rel
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# Build the release
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RUN mix release
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# --- Runner ---
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FROM ${RUNNER_IMAGE} AS runner
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# Runtime deps only — no compilers, no -dev packages
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RUN apk add --no-cache libstdc++ openssl ncurses-libs vips
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WORKDIR /app
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# Non-root user for security
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RUN adduser -D -h /app appuser
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RUN chown appuser:appuser /app
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# Prepare the data directory (for SQLite database)
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RUN mkdir -p /data && chown appuser:appuser /data
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ENV MIX_ENV="prod"
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# Copy the release from the builder
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COPY --from=builder --chown=appuser:appuser /app/_build/${MIX_ENV}/rel/simpleshop_theme ./
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USER appuser
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# Ensure /data is the default database location
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ENV DATABASE_PATH="/data/simpleshop_theme.db"
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EXPOSE 4000
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CMD ["/app/bin/server"]
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