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####################################################################################################
## Builder
####################################################################################################
FROM rust:alpine AS builder
RUN apk add --no-cache musl-dev
WORKDIR /libreddit
COPY . .
RUN cargo build --target x86_64-unknown-linux-musl --release
####################################################################################################
## Final image
####################################################################################################
FROM alpine:latest
# Import ca-certificates from builder
COPY --from=builder /usr/share/ca-certificates /usr/share/ca-certificates
COPY --from=builder /etc/ssl/certs /etc/ssl/certs
# Copy our build
COPY --from=builder /libreddit/target/x86_64-unknown-linux-musl/release/libreddit /usr/local/bin/libreddit
# Use an unprivileged user.
RUN adduser --home /nonexistent --no-create-home --disabled-password libreddit
USER libreddit
# Tell Docker to expose port 8080
EXPOSE 8080
# Run a healthcheck every minute to make sure Libreddit is functional
HEALTHCHECK --interval=1m --timeout=3s CMD wget --spider --q http://localhost:8080/settings || exit 1
CMD ["libreddit"]