FROM rust:1.83-alpine3.21 AS builder

ARG DI_VER=1.2.5

WORKDIR /app

RUN apk update && apk add --no-cache build-base

# Build dumb-init
RUN wget -O - "https://github.com/Yelp/dumb-init/archive/refs/tags/v${DI_VER}.tar.gz" | tar -xzf - && \
    cd "dumb-init-${DI_VER}" && \
    make SHELL=/bin/sh && \
    mv dumb-init .. && \
    cd ..

COPY Cargo.toml Cargo.lock ./

RUN cargo fetch --locked

COPY . ./

RUN cargo build --release --frozen


FROM alpine:3.21

COPY --from=builder /app/target/release/calathea /app/calathea
COPY --from=builder /app/dumb-init /app/dumb-init
COPY templates /app/templates
COPY static /app/static

# Create a non-root user & make sure it can write to the data directory
RUN set -x && \
	adduser -u 82 -D -S -G www-data www-data && \
    mkdir /data && \
    chown -R www-data:www-data /data

WORKDIR /data

ENV TEMPLATE_DIR=/app/templates \
    STATIC_DIR=/app/static

USER www-data:www-data

ENTRYPOINT [ "/app/dumb-init", "--" ]
CMD [ "/app/calathea" ]