copy from PR, run --help

.dockerignore

@@ -0,0 +1,3 @@
+target/
+Dockerfile
+.dockerignore

.github/scripts/debian-prerequisites.sh

@@ -1 +0,0 @@
-./ubuntu-prerequisites.sh

.github/scripts/ubuntu-prerequisites.sh

@@ -1,8 +0,0 @@
-#!/usr/env sh
-set -eu
-
-apt-get update
-apt-get install -y curl git protobuf-compiler build-essential libclang-15-dev
-
-curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
-. "$HOME/.cargo/env"

.github/workflows/build-docker.yml

@@ -0,0 +1,33 @@
+name: Build docker image
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - rzadp/test-dockerfile
+
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      # We've run into out-of-disk error when compiling Polkadot in the next step, so we free up some space this way.
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@54081f138730dfa15788a46383842cd2f914a1be # 1.3.1
+        with:
+          android: true # This alone is a 12 GB save.
+          # We disable the rest because it caused some problems. (they're enabled by default)
+          # The Android removal is enough.
+          dotnet: false
+          haskell: false
+          large-packages: false
+          swap-storage: false
+
+      - name: Build the docker image
+        run: docker build . -t polkadot-sdk-minimal-template
+
+      - name: Try running the container
+        run: docker run --rm polkadot-sdk-minimal-template --help

.github/workflows/ci.yml

@@ -6,27 +6,21 @@ on:
     branches:
       - main
       - master
-      - rzadp/prerequisites
 
 
 jobs:
   ci:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        container:
-          - "ubuntu:22.04"
-          - "ubuntu:latest"
-          - "debian:latest"
-    container: ${{ matrix.container }}
     steps:
       - uses: actions/checkout@v3
 
-      - name: Run the prerequisites script
+      - name: Rust compilation prerequisites
         run: |
-          DIST="$(echo "${{ matrix.container }}" | cut -d':' -f1)"
-          sh ./.github/scripts/${DIST}-prerequisites.sh
+          sudo apt update
+          sudo apt install -y \
+            protobuf-compiler
+          rustup target add wasm32-unknown-unknown
+          rustup component add rustfmt clippy rust-src
 
       # We've run into out-of-disk error when compiling Polkadot in the next step, so we free up some space this way.
       - name: Free Disk Space (Ubuntu)
@@ -40,20 +34,7 @@ jobs:
           large-packages: false
           swap-storage: false
 
-      - name: Build the template
-        run: /github/home/.cargo/bin/cargo build
+      - name: Check if it compiles
+        id: check-compilation
+        run: cargo check && cargo test
         timeout-minutes: 90
-
-      - name: Run clippy
-        run: |
-          SKIP_WASM_BUILD=1 /github/home/.cargo/bin/cargo clippy --all-targets --locked --workspace --quiet
-          SKIP_WASM_BUILD=1 /github/home/.cargo/bin/cargo clippy --all-targets --all-features --locked --workspace --quiet
-        timeout-minutes: 30
-
-      - name: Run the tests
-        run: /github/home/.cargo/bin/cargo test
-        timeout-minutes: 15
-
-      - name: Build the docs
-        run: /github/home/.cargo/bin/cargo doc --all-features --workspace --no-deps
-        timeout-minutes: 15

Dockerfile

@@ -0,0 +1,28 @@
+FROM docker.io/paritytech/ci-unified:latest as builder
+
+WORKDIR /polkadot
+COPY . /polkadot
+
+RUN cargo fetch
+RUN cargo build --locked --release
+
+FROM docker.io/parity/base-bin:latest
+
+COPY --from=builder /polkadot/target/release/minimal-template-node /usr/local/bin
+
+USER root
+RUN useradd -m -u 1001 -U -s /bin/sh -d /polkadot polkadot && \
+	mkdir -p /data /polkadot/.local/share && \
+	chown -R polkadot:polkadot /data && \
+	ln -s /data /polkadot/.local/share/polkadot && \
+# unclutter and minimize the attack surface
+	rm -rf /usr/bin /usr/sbin && \
+# check if executable works in this container
+	/usr/local/bin/minimal-template-node --version
+
+USER polkadot
+
+EXPOSE 30333 9933 9944 9615
+VOLUME ["/data"]
+
+ENTRYPOINT ["/usr/local/bin/minimal-template-node"]

rust-toolchain.toml

@@ -1,14 +0,0 @@
-[toolchain]
-channel = "stable"
-components = [
-        "cargo",
-        "clippy",
-        "rust-analyzer",
-        "rust-src",
-        "rust-std",
-        "rustc",
-        "rustc-dev",
-        "rustfmt",
-]
-targets = ["wasm32-unknown-unknown"]
-profile = "minimal"