arm buildability in docker (#162)

* mvp arm buildability in docker

Signed-off-by: clux <[email protected]>

* actually fix build - sneaky axum issue

Signed-off-by: clux <[email protected]>

* clarify

Signed-off-by: clux <[email protected]>

* ping hooks - 2025-11-27

Signed-off-by: clux <[email protected]>

* is this a thing?

Signed-off-by: clux <[email protected]>

* try a thing

Signed-off-by: clux <[email protected]>

* always extract?

Signed-off-by: clux <[email protected]>

* warning

Signed-off-by: clux <[email protected]>

* another test

Signed-off-by: clux <[email protected]>

* min?

Signed-off-by: clux <[email protected]>

* also target

Signed-off-by: clux <[email protected]>

* reverse order

Signed-off-by: clux <[email protected]>

* ping hooks - 2025-11-27

Signed-off-by: clux <[email protected]>

* ugh try something else

Signed-off-by: clux <[email protected]>

* ping hooks - 2025-11-27

Signed-off-by: clux <[email protected]>

* this doesn't get me very far

Signed-off-by: clux <[email protected]>

* ugh

Signed-off-by: clux <[email protected]>

* destructor ordering?

Signed-off-by: clux <[email protected]>

* different order, different paths

Signed-off-by: clux <[email protected]>

* ping hooks - 2025-11-27

Signed-off-by: clux <[email protected]>

* maybe with load

Signed-off-by: clux <[email protected]>

---------

Signed-off-by: clux <[email protected]>

Author: clux

.github/workflows/ci.yml

@@ -22,32 +22,28 @@ jobs:
           #- linux/arm64
     steps:
       - uses: actions/checkout@v5
-
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
 
       # Build and push with docker buildx
       - name: Setup docker buildx
         uses: docker/setup-buildx-action@v3
         with:
-          config: .github/buildkitd.toml
-
-      - name: Configure tags based on git tags + latest
-        uses: docker/metadata-action@v5
-        id: meta
-        with:
-          images: ghcr.io/${{ github.repository }}
-          tags: |
-            type=pep440,pattern={{version}}
-            type=raw,value=latest,enable={{is_default_branch}}
-            type=ref,event=pr
+          buildkitd-config: .github/buildkitd.toml
 
       - name: Rust Build Cache for Docker
         uses: actions/cache@v4
         id: cache
         with:
-          path: rust-build-cache
-          key: ${{ runner.os }}-build-cache-${{ hashFiles('**/Cargo.toml') }}
+          path: |
+            target
+            ~/.cargo/registry
+            ~/.cargo/git
+          key: ${{ runner.os }}-build-cache2-${{ hashFiles('**/Cargo.toml') }}
+          restore-keys: |
+            ${{ runner.os}}-build-cache2
+      - name: Create folders on cache miss
+        run: mkdir -p ~/.cargo/{git,registry} && mkdir -p target
 
       - name: Inject cache into docker
         uses: reproducible-containers/buildkit-cache-dance@v3
@@ -58,7 +54,17 @@ jobs:
               "~/.cargo/registry": "/root/.cargo/registry",
               "~/.cargo/git": "/root/.cargo/git"
             }
-          skip-extraction: ${{ steps.cache.outputs.cache-hit }}
+          # skip-extraction: ${{ steps.cache.outputs.cache-hit }}
+
+      - name: Configure tags based on git tags + latest
+        uses: docker/metadata-action@v5
+        id: meta
+        with:
+          images: ghcr.io/${{ github.repository }}
+          tags: |
+            type=pep440,pattern={{version}}
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=pr
 
       - name: Docker login
         uses: docker/login-action@v3
@@ -78,10 +84,10 @@ jobs:
           # when using buildkit-cache-dance
           cache-from: type=gha
           cache-to: type=gha,mode=max
+          load: true
           push: ${{ github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags') }}
           tags: ${{ steps.meta.outputs.tags }}
           platforms: ${{ matrix.platform }}
-          sbom: true
 
   lint:
     runs-on: ubuntu-latest

Dockerfile

@@ -3,10 +3,9 @@ COPY Cargo.* .
 COPY version.rs version.rs
 RUN --mount=type=cache,target=/volume/target \
     --mount=type=cache,target=/root/.cargo/registry \
-    cargo build --release --bin version && \
-    mv /volume/target/x86_64-unknown-linux-musl/release/version .
+    cargo install --bin version --path=.
 
 FROM cgr.dev/chainguard/static
-COPY --from=builder --chown=nonroot:nonroot /volume/version /app/
+COPY --from=builder --chown=nonroot:nonroot /opt/cargo/bin/version /app/
 EXPOSE 8080
 ENTRYPOINT ["/app/version"]

README.md

@@ -34,4 +34,4 @@ $ curl 0.0.0.0:8000/versions/default/foo-controller
 - In-cluster: edit and `tilt up` [*](https://tilt.dev/)
 - Docker build: `just build`
 
-NB: images + docker dev is `linux/amd64` only atm.
+NB: pushed images are `linux/amd64` only atm, but local docker build works on `linux/arm64` also.

justfile

@@ -17,6 +17,6 @@ release:
 
 [private]
 import:
-  k3d image import ghcr.io/kube-rs/version-rs:local --cluster main
+  k3d image import ghcr.io/kube-rs/version-rs:local -c=$(k3d cluster list -ojson |jq '.[0].name' -r)
   sd "image: .*" "image: ghcr.io/kube-rs/version-rs:local" deployment.yaml
   kubectl apply -f deployment.yaml

version.rs

@@ -69,7 +69,7 @@ async fn main() -> anyhow::Result<()> {
 
     let app = Router::new()
         .route("/versions", routing::get(get_versions))
-        .route("/versions/:namespace/:name", routing::get(get_version))
+        .route("/versions/{namespace}/{name}", routing::get(get_version))
         .with_state(reader) // routes can read from the reflector store
         .layer(tower_http::trace::TraceLayer::new_for_http())
         // NB: routes added after TraceLayer are not traced