ci: fix dockerfile perms and add test

.github/workflows/container.yaml

@@ -31,8 +31,14 @@ jobs:
           containerfiles: |
             ./identity-server/Dockerfile
 
+      - name: Test container works
+        run: |
+          set -Eeuxo pipefail
+          version="$(podman run --rm "${{ steps.build-image.outputs.image-with-tag }}" --version)"
+          echo "version: ${verson}"
       - name: Get registry url
         run: |
+          set -Eeuxo pipefail
           # Container registries don't support upper case letters
           CI_REGISTRY_URL="ghcr.io/${GITHUB_REPOSITORY_OWNER@L}"
           echo "CI_REGISTRY_URL=${CI_REGISTRY_URL}" >> "${GITHUB_ENV}"

.github/workflows/rust.yaml

@@ -25,8 +25,6 @@ jobs:
       - uses: actions/[email protected]
       - name: Cache cargo dependencies
         uses: Swatinem/[email protected]
-        with:
-          save-if: ${{ env.CI_IS_DEFAULT_BRANCH }}
 
       - name: Clippy lints
         run: cargo clippy --profile artifact-dev --all --all-features --all-targets --no-deps -- -D warnings
@@ -44,8 +42,6 @@ jobs:
       - uses: actions/[email protected]
       - name: Cache cargo dependencies
         uses: Swatinem/[email protected]
-        with:
-          save-if: ${{ env.CI_IS_DEFAULT_BRANCH }}
 
       - name: Test
         run: cargo test --profile artifact-dev --all --all-features --all-targets
@@ -84,8 +80,6 @@ jobs:
           version: 0.13.0
       - name: Cache cargo dependencies
         uses: Swatinem/[email protected]
-        with:
-          save-if: ${{ env.CI_IS_DEFAULT_BRANCH }}
 
       - name: Install cargo-zigbuild
         run: cargo install --locked [email protected]

identity-server/Dockerfile

@@ -1,21 +1,22 @@
 # We use linux/amd64 because we don't actually care which arch yet.
 FROM --platform=linux/amd64 gcr.io/distroless/static-debian12:nonroot@sha256:69830f29ed7545c762777507426a412f97dad3d8d32bae3e74ad3fb6160917ea AS distroless
 COPY artifacts/identity-server-linux-aarch64 /artifacts/linux/arm64/identity-server
-COPY artifacts/identity-server-windows-x86_64.exe /artifacts/windows/amd64/identity-server
 COPY artifacts/identity-server-linux-x86_64 /artifacts/linux/amd64/identity-server
+COPY artifacts/identity-server-windows-x86_64.exe /artifacts/windows/amd64/identity-server
 
 FROM scratch
 ARG TARGETPLATFORM
 
 COPY --from=distroless /etc/passwd /etc/passwd
+COPY --from=distroless /etc/group /etc/group
 USER nonroot
 ENV USER=nonroot
 
 ENV XDG_CACHE_HOME=/home/nonroot/.cache
 VOLUME ["/home/nonroot/.cache"]
 
 # Bring in the actual binary we will run
-COPY --from=distroless /artifacts/$TARGETPLATFORM/identity-server /opt/identity-server
+COPY --from=distroless --chmod=544 --chown=nonroot:nonroot /artifacts/$TARGETPLATFORM/identity-server /opt/identity-server
 ENTRYPOINT ["/opt/identity-server"]
 VOLUME ["/var/db"]
 WORKDIR ["/var/db"]

identity-server/src/main.rs

@@ -17,6 +17,7 @@ use identity_server::{
 const GOOGLE_CLIENT_ID_DOCS_URL: &str = "https://developers.google.com/identity/gsi/web/guides/get-google-api-clientid#get_your_google_api_client_id";
 
 #[derive(clap::Parser, Debug)]
+#[clap(version)]
 struct Cli {
 	#[clap(long, env)]
 	config: PathBuf,