Dockerfile.aarch64-unknown-linux-musl

# syntax=docker/dockerfile:1.2

FROM --platform=$BUILDPLATFORM rust:1.80-alpine3.20 as SERVER_BUILDER

## Statically link binary to OpenSSL libraries.
ENV OPENSSL_STATIC=yes
ENV OPENSSL_LIB_DIR=/usr/lib/
ENV OPENSSL_INCLUDE_DIR=/usr/include/

ENV PATH="$PATH:/app/aarch64-linux-musl-cross/bin"

WORKDIR /app
RUN set -x && apk add --no-cache pkgconfig musl-dev openssl-dev perl make curl ca-certificates

# Prepare environment: for cross compilation we download toolchain and `aarch64` OpenSSL libs.
RUN set -x && \
    curl --remote-name-all https://musl.cc/aarch64-linux-musl-cross.tgz https://dl-cdn.alpinelinux.org/alpine/v3.19/main/aarch64/openssl-libs-static-3.3.1-r3.apk && \
    apk add --allow-untrusted openssl-libs-static-3.3.1-r3.apk && \
    tar xzf ./aarch64-linux-musl-cross.tgz && \
    rustup target add aarch64-unknown-linux-musl

# Copy assets.
COPY ["./assets", "./assets"]

# Fetch dependencies if they change.
COPY ["./Cargo.lock", "./Cargo.toml", "./"]
RUN set -x && cargo fetch

COPY [".", "./"]
RUN --mount=type=cache,target=/app/target set -x && \
    cargo build --release --target=aarch64-unknown-linux-musl --config target.aarch64-unknown-linux-musl.linker=\"aarch64-linux-musl-gcc\" && \
    cp ./target/aarch64-unknown-linux-musl/release/secutils ./

FROM alpine:3.20
EXPOSE 7070

ENV APP_USER=secutils
ENV APP_USER_UID=1001

WORKDIR /app
COPY --from=SERVER_BUILDER ["/app/secutils", "./"]
COPY --from=SERVER_BUILDER ["/etc/ssl/certs/ca-certificates.crt", "/etc/ssl/certs/"]

# Configure group and user.
RUN addgroup -S -g $APP_USER_UID $APP_USER && \
    adduser -S -u $APP_USER_UID -G $APP_USER $APP_USER
RUN chown -R $APP_USER:$APP_USER ./
USER $APP_USER

CMD [ "./secutils" ]