custom dockerfile

Dockerfile.custom

@@ -0,0 +1,43 @@
+FROM 11notes/alpine:stable as builder
+
+USER root
+
+RUN apk update && apk add ca-certificates musl-dev build-base openssl-dev curl
+
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+WORKDIR /app
+COPY Cargo.toml .
+COPY src ./src
+
+RUN mkdir -p /root/.cargo && printf '\
+    [profile.release]\n\
+    lto = true\n\
+    codegen-units = 1\n\
+    opt-level = '3'\n\
+    panic = "abort"\n\
+    strip = true\n
+    [target.x86_64-unknown-linux-gnu]\n\
+    rustflags = [\n\
+        "-C", "target-cpu=native",\n\
+        "-C", "codegen-units=1",\n\
+        "-C", "debuginfo=0"\n\
+    ]\n' > /root/.cargo/config.toml
+
+RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
+
+RUN rustup target add x86_64-unknown-linux-musl
+
+RUN RUSTFLAGS="-Ctarget-feature=+crt-static" cargo build --release --target x86_64-unknown-linux-musl
+
+FROM scratch
+
+USER 65534:65534
+
+COPY --from=builder --chown=65534:65534 /app/target/x86_64-unknown-linux-musl/release/image-proxy /usr/bin/image-proxy
+
+COPY --from=builder /etc/ssl /etc/ssl
+
+EXPOSE 8080
+
+ENTRYPOINT ["/usr/bin/image-proxy"]