.gitea/workflows/template.yaml

@@ -0,0 +1,19 @@
+name: Gitea Actions Template
+run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
+on: [push]
+
+jobs:
+  Explore-Gitea-Actions:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
+      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
+      - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
+      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
+      - name: List files in the repository
+        run: |
+          ls ${{ gitea.workspace }}
+      - run: echo "🍏 This job's status is ${{ job.status }}."

Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "small-rust"
+version = "0.1.0"

Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "small-rust"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+
+[profile.release]
+lto = true
+codegen-units = 1
+strip = "symbols"

docker-compose.yml

@@ -1,4 +1,10 @@
 services:
-  lua-alpine:
+  small-rust-distroless:
+    build:
+      dockerfile: ./docker/distroless.Dockerfile
+  small-rust-alpine:
     build:
       dockerfile: ./docker/alpine.Dockerfile
+  small-rust-scratch:
+    build:
+      dockerfile: ./docker/scratch.Dockerfile

docker/alpine.Dockerfile

@@ -1,10 +1,56 @@
-FROM alpine:3.20
+####################################################################################################
+## Builder
+####################################################################################################
+FROM rust:1-alpine3.19
+# This is important, see https://github.com/rust-lang/docker-rust/issues/85
+ENV RUSTFLAGS="-C target-feature=-crt-static"
 
-RUN apk add --update lua5.3 && \
+RUN apk add --no-cache musl-dev
-	rm -rf /var/cache/apk/* /tmp/*
 
 WORKDIR /app
 
 COPY ./ /app
 
-CMD ["/usr/bin/lua5.3", "src/main.lua"]
+RUN cargo build --release
+RUN strip target/release/small-rust
+
+####################################################################################################
+## Final image
+####################################################################################################
+FROM alpine:3.19
+
+RUN apk add --no-cache libgcc
+
+COPY --from=0 /app/target/release/small-rust .
+
+ENTRYPOINT ["/small-rust"]
+
+
+####################################################################################################
+## Alternatively use this builder
+####################################################################################################
+#FROM rust:latest AS builder
+#
+#RUN rustup target add x86_64-unknown-linux-musl
+#RUN apt update && apt install -y musl-tools musl-dev
+#RUN update-ca-certificates
+#
+## Create appuser
+#ENV USER=small-rust
+#ENV UID=10001
+#
+#RUN adduser \
+#    --disabled-password \
+#    --gecos "" \
+#    --home "/nonexistent" \
+#    --shell "/sbin/nologin" \
+#    --no-create-home \
+#    --uid "${UID}" \
+#    "${USER}"
+#
+#
+#WORKDIR /app
+#
+#COPY ./ .
+#
+#RUN cargo build --target x86_64-unknown-linux-musl --release

docker/distroless.Dockerfile

@@ -0,0 +1,46 @@
+####################################################################################################
+## Builder
+####################################################################################################
+FROM rust:latest AS builder
+
+RUN update-ca-certificates
+
+# Create appuser
+ENV USER=small-rust
+ENV UID=10001
+
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    "${USER}"
+
+
+WORKDIR /app
+
+COPY ./ .
+
+# We no longer need to use the x86_64-unknown-linux-musl target
+RUN cargo build --release
+
+####################################################################################################
+## Final image
+####################################################################################################
+FROM gcr.io/distroless/cc
+
+# Import from builder.
+COPY --from=builder /etc/passwd /etc/passwd
+COPY --from=builder /etc/group /etc/group
+
+WORKDIR /app
+
+# Copy our build
+COPY --from=builder /app/target/release/small-rust ./
+
+# Use an unprivileged user.
+USER small-rust:small-rust
+
+CMD ["/app/small-rust"]

docker/scratch.Dockerfile

@@ -0,0 +1,76 @@
+####################################################################################################
+## Builder
+####################################################################################################
+FROM rust:latest AS builder
+
+RUN rustup target add x86_64-unknown-linux-musl
+RUN apt update && apt install -y musl-tools musl-dev
+RUN update-ca-certificates
+
+# Create appuser
+ENV USER=small-rust
+ENV UID=10001
+
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    "${USER}"
+
+
+WORKDIR /app
+
+COPY ./ .
+
+RUN cargo build --target x86_64-unknown-linux-musl --release
+
+####################################################################################################
+## Final image
+####################################################################################################
+FROM scratch
+
+# Import from builder.
+COPY --from=builder /etc/passwd /etc/passwd
+COPY --from=builder /etc/group /etc/group
+
+WORKDIR /app
+
+# Copy our build
+COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/small-rust ./
+
+# Use an unprivileged user.
+USER small-rust:small-rust
+
+CMD ["/app/small-rust"]
+
+####################################################################################################
+## Alternatively use this builder (image size actually bigger)
+####################################################################################################
+#FROM rust:1-alpine3.19 AS builder
+#
+#RUN rustup update nightly; rustup default nightly;
+#
+## Create appuser
+#ENV USER=small-rust
+#ENV UID=10001
+#
+#RUN adduser \
+#    --disabled-password \
+#    --gecos "" \
+#    --home "/nonexistent" \
+#    --shell "/sbin/nologin" \
+#    --no-create-home \
+#    --uid "${UID}" \
+#    "${USER}"
+#
+#RUN apk add --no-cache musl-dev
+#
+#WORKDIR /app
+#
+#COPY ./ /app
+#
+#RUN cargo build --release
+#

src/main.lua

@@ -1 +0,0 @@
-io.write("Hello world\n")

src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}