Read versions from .env file

.env

@@ -0,0 +1,3 @@
+# Versions must be major.minor
+ALPINE_VERSION=3.19
+RUST_VERSION=1.77

.github/workflows/build.yml

@@ -19,10 +19,12 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Load .env file
+        uses: xom9ikk/dotenv@v2
       - name: Setup Rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: 1.77
+          toolchain: ${{ env.RUST_VERSION }}
           targets: ${{ matrix.target.target }}
       - name: Test
         if: ${{ matrix.target.test }}

.github/workflows/docker.yml

@@ -13,6 +13,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Load .env file
+        uses: xom9ikk/dotenv@v2
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
@@ -42,3 +44,6 @@ jobs:
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            ALPINE_VERSION=${{ env.ALPINE_VERSION }}
+            RUST_VERSION=${{ env.RUST_VERSION }}