Dockerfile templates for rust projects
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.gitignore
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.gitignore
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/target
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Cargo.lock
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Cargo.lock
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "small-rust"
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version = "0.1.0"
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Cargo.toml
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Cargo.toml
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[package]
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name = "small-rust"
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version = "0.1.0"
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edition = "2021"
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[dependencies]
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[profile.release]
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lto = true
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codegen-units = 1
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strip = "symbols"
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docker-compose.yml
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docker-compose.yml
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services:
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small-rust-distroless:
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build:
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dockerfile: ./docker/distroless.Dockerfile
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small-rust-alpine:
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build:
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dockerfile: ./docker/alpine.Dockerfile
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small-rust-scratch:
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build:
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dockerfile: ./docker/scratch.Dockerfile
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docker/alpine.Dockerfile
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docker/alpine.Dockerfile
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####################################################################################################
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## Builder
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####################################################################################################
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FROM rust:1-alpine3.19
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# This is important, see https://github.com/rust-lang/docker-rust/issues/85
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ENV RUSTFLAGS="-C target-feature=-crt-static"
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RUN apk add --no-cache musl-dev
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WORKDIR /app
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COPY ./ /app
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RUN cargo build --release
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RUN strip target/release/small-rust
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####################################################################################################
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## Final image
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####################################################################################################
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FROM alpine:3.19
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RUN apk add --no-cache libgcc
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COPY --from=0 /app/target/release/small-rust .
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ENTRYPOINT ["/small-rust"]
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####################################################################################################
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## Alternatively use this builder
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####################################################################################################
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#FROM rust:latest AS builder
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#
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#RUN rustup target add x86_64-unknown-linux-musl
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#RUN apt update && apt install -y musl-tools musl-dev
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#RUN update-ca-certificates
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#
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## Create appuser
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#ENV USER=myip
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#ENV UID=10001
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#
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#RUN adduser \
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# --disabled-password \
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# --gecos "" \
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# --home "/nonexistent" \
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# --shell "/sbin/nologin" \
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# --no-create-home \
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# --uid "${UID}" \
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# "${USER}"
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#
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#
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#WORKDIR /myip
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#
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#COPY ./ .
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#
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#RUN cargo build --target x86_64-unknown-linux-musl --release
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46
docker/distroless.Dockerfile
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docker/distroless.Dockerfile
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####################################################################################################
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## Builder
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####################################################################################################
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FROM rust:latest AS builder
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RUN update-ca-certificates
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# Create appuser
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ENV USER=small-rust
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ENV UID=10001
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RUN adduser \
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--disabled-password \
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--gecos "" \
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--home "/nonexistent" \
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--shell "/sbin/nologin" \
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--no-create-home \
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--uid "${UID}" \
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"${USER}"
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WORKDIR /app
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COPY ./ .
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# We no longer need to use the x86_64-unknown-linux-musl target
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RUN cargo build --release
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####################################################################################################
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## Final image
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####################################################################################################
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FROM gcr.io/distroless/cc
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# Import from builder.
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COPY --from=builder /etc/passwd /etc/passwd
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COPY --from=builder /etc/group /etc/group
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WORKDIR /app
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# Copy our build
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COPY --from=builder /app/target/release/small-rust ./
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# Use an unprivileged user.
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USER small-rust:small-rust
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CMD ["/app/small-rust"]
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docker/scratch.Dockerfile
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docker/scratch.Dockerfile
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####################################################################################################
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## Builder
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####################################################################################################
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FROM rust:latest AS builder
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RUN rustup target add x86_64-unknown-linux-musl
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RUN apt update && apt install -y musl-tools musl-dev
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RUN update-ca-certificates
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# Create appuser
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ENV USER=small-rust
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ENV UID=10001
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RUN adduser \
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--disabled-password \
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--gecos "" \
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--home "/nonexistent" \
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--shell "/sbin/nologin" \
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--no-create-home \
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--uid "${UID}" \
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"${USER}"
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WORKDIR /app
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COPY ./ .
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RUN cargo build --target x86_64-unknown-linux-musl --release
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####################################################################################################
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## Final image
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####################################################################################################
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FROM scratch
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# Import from builder.
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COPY --from=builder /etc/passwd /etc/passwd
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COPY --from=builder /etc/group /etc/group
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WORKDIR /app
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# Copy our build
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COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/small-rust ./
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# Use an unprivileged user.
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USER small-rust:small-rust
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CMD ["/app/small-rust"]
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3
src/main.rs
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3
src/main.rs
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fn main() {
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println!("Hello, world!");
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}
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