dockerize the exporter (#3)

making
1. dockerfile
2. action can build image into ghcr
3. fixing code coverage issue
4. adding dependency bot to check action

.github/dependabot.yml

@@ -1,5 +1,9 @@
 version: 2
 updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: daily
   - package-ecosystem: cargo
     directory: "/"
     schedule:

.github/workflows/main.yml

@@ -30,22 +30,33 @@ jobs:
 
     - name: Run Tests 
       run: cargo test --all --all-features --no-fail-fast
+
   coverage:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+
+    # TODO:
+    # there has an issue of rust 2022-01-15 nightly version toolchain
+    # https://github.com/taiki-e/cargo-llvm-cov/issues/128
+    # so do a work around here to tag older nightly version
     - uses: actions-rs/toolchain@v1
       with:
           profile: minimal
-          toolchain: stable
-    - name: Install Rust nightly llvm-tools-preview component
-      run: rustup toolchain install nightly --component llvm-tools-preview
+          toolchain: nightly-2022-01-14
+          override: true
+          components: llvm-tools-preview
+
     - name: Install cargo-llvm-cov
-      run: curl -LsSf https://github.com/taiki-e/cargo-llvm-cov/releases/latest/download/cargo-llvm-cov-x86_64-unknown-linux-gnu.tar.gz | tar xzf - -C ~/.cargo/bin
+      uses: taiki-e/install-action@v1
+      with:
+        tool: cargo-llvm-cov
+
     - name: Generate code coverage
       run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
+
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v2
       with:
         files: lcov.info
         fail_ci_if_error: true

.github/workflows/release.yml

@@ -116,3 +116,44 @@ jobs:
           asset_path: ./findora-exporter_${{ steps.info.outputs.version }}_amd64.deb
           asset_name: findora-exporter_${{ steps.info.outputs.version }}_amd64.deb
           asset_content_type: application/x-deb
+
+  publish-image:
+    name: Publish image releases
+    needs: check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login Github Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Metadata for Docker
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ghcr.io/FindoraNetwork/findora-exporter
+          tags: |
+            type=raw,value={{tag}}
+            type=raw,value=latest
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "findora-exporter"
-version = "1.1.0"
+version = "1.1.1"
 authors = ["tommady <[email protected]>"]
 edition = "2021"
 readme = "README.md"

Dockerfile

@@ -0,0 +1,23 @@
+FROM docker.io/rust:slim AS builder
+
+RUN apt-get update -y && apt-get install -y musl-tools
+ARG TARGETPLATFORM
+RUN case "$TARGETPLATFORM" in \
+	"linux/amd64") echo x86_64-unknown-linux-musl > /rust_targets ;; \
+	*) exit 1 ;; \
+    esac
+
+RUN rustup target add $(cat /rust_targets)
+
+COPY . ./exporter
+WORKDIR /exporter
+RUN cargo build --release --target $(cat /rust_targets)
+RUN cp target/$(cat /rust_targets)/release/findora-exporter ./
+RUN strip --strip-all ./findora-exporter
+
+FROM docker.io/busybox:latest
+
+COPY --from=builder /exporter/findora-exporter /exporter
+
+EXPOSE 9090
+ENTRYPOINT ["/exporter", "--config", "/config.json"]