Introduce docker-base

.github/workflows/docker-base.yml

@@ -0,0 +1,76 @@
+# This action enables building container images for subcoin node.
+name: Docker base 
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+      - docker-base
+      - 'release/**'
+    tags:
+      - '**'
+
+jobs:
+  container-linux:
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: write
+      packages: write
+    strategy:
+      matrix:
+        platform:
+          # - arch: linux/amd64
+            # profile: production
+            # suffix: ubuntu-x86_64-${{ github.ref_name }}
+            # image-suffix: ''
+            # dockerfile-suffix: ''
+          - arch: linux/arm64
+            profile: production
+            suffix: ubuntu-aarch64-${{ github.ref_name }}
+            image-suffix: '-aarch64.base'
+            dockerfile-suffix: '.aarch64.base'
+
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log into registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+            ghcr.io/subcoin-project/subcoin-base
+          tags: |
+            type=ref,event=tag
+            type=ref,event=branch
+            type=sha
+          flavor: |
+            latest=false
+            suffix=${{ matrix.platform.image-suffix }}
+
+      - name: Build and push image
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          file: Dockerfile${{ matrix.platform.dockerfile-suffix }}
+          platforms: ${{ matrix.platform.arch }}
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            SUBSTRATE_CLI_GIT_COMMIT_HASH=${{ github.sha }}
+            PROFILE=${{ matrix.platform.profile }}
+
+      - name: Image digest
+        run: echo ${{ steps.build.outputs.digest }}

Dockerfile.aarch64.base

@@ -0,0 +1,44 @@
+# This is a base image to build Subcoin node
+FROM ubuntu:22.04 AS builder
+
+# By default, we use the stable Rust. However, we encountered some network issues
+# during the docker build processing in CI. Now we compile the binary using nightly
+# so that the network issue in CI can be mitigated via the unstable flag `-Zgitoxide -Zgit`.
+ARG RUSTC_VERSION=nightly-2024-06-29
+
+ARG PROFILE=production
+ARG SUBSTRATE_CLI_GIT_COMMIT_HASH
+ARG TARGET=aarch64-unknown-linux-gnu
+
+# Incremental compilation here isn't helpful
+ENV CARGO_INCREMENTAL=0
+
+ENV RUSTFLAGS="-C linker=aarch64-linux-gnu-gcc"
+ENV PKG_CONFIG_ALLOW_CROSS=true
+
+WORKDIR /src
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+        ca-certificates \
+        clang \
+        cmake \
+        curl \
+        git \
+        llvm \
+        protobuf-compiler \
+        make && \
+    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain $RUSTC_VERSION
+
+# Dependencies necessary for cross-compilation.
+RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+        g++-aarch64-linux-gnu \
+        gcc-aarch64-linux-gnu \
+        libc6-dev-arm64-cross && \
+    /root/.cargo/bin/rustup target add $TARGET && \
+    /root/.cargo/bin/rustup target add wasm32-unknown-unknown --toolchain $RUSTC_VERSION-$TARGET
+
+COPY . .
+
+# Create a dummy main.rs to trick Cargo into downloading the dependencies
+RUN /root/.cargo/bin/cargo +$RUSTC_VERSION build --bin dummy --locked --profile=production --target aarch64-unknown-linux-gnu

crates/subcoin-node/Cargo.toml

@@ -8,7 +8,11 @@ license.workspace = true
 
 [[bin]]
 name = "subcoin"
-path = "src/main.rs"
+path = "src/bin/subcoin.rs"
+
+[[bin]]
+name = "dummy"
+path = "src/bin/dummy.rs"
 
 [dependencies]
 async-trait = { workspace = true }

crates/subcoin-node/src/bin/dummy.rs

@@ -0,0 +1 @@
+fn main() {}

crates/subcoin-node/src/bin/subcoin.rs

@@ -0,0 +1,4 @@
+fn main() -> sc_cli::Result<()> {
+    subcoin_node::cli::run()?;
+    Ok(())
+}

crates/subcoin-node/src/main.rs → crates/subcoin-node/src/lib.rs

@@ -1,12 +1,7 @@
-mod cli;
+pub mod cli;
 mod commands;
 mod substrate_cli;
 
-fn main() -> sc_cli::Result<()> {
-    cli::run()?;
-    Ok(())
-}
-
 pub struct CoinStorageKey;
 
 impl subcoin_primitives::CoinStorageKey for CoinStorageKey {