Enable pid1 tests (#10)

* Enable pid1 tests

Switches to Ubuntu image since alpine interacts badly with github
runner where it gets stuck waiting for the output to be available.

* Use ubuntu for the other image too

* Reorder cache

* Use --interactive option

Author: psibi

.github/workflows/rust.yml

@@ -36,13 +36,13 @@ jobs:
     - uses: extractions/setup-just@v1
       with:
         just-version: 1.10.0
+    - uses: Swatinem/rust-cache@v2
+      with:
+        key: ${{ runner.os }}-${{ hashFiles('Cargo.lock') }}-${{ matrix.toolchain }}
     - uses: dtolnay/rust-toolchain@master
       with:
         toolchain: ${{ matrix.toolchain }}
         components: clippy, rustfmt
-    - uses: Swatinem/rust-cache@v2
-      with:
-        key: ${{ runner.os }}-${{ hashFiles('Cargo.lock') }}-${{ matrix.toolchain }}
     - name: Install musl tools
       run: |
         sudo apt-get install -y musl-tools
@@ -53,9 +53,11 @@ jobs:
     - name: Run tests
       run: |
         just test
-        # just test-init-image
         cd pid1 && just test
       if: runner.os == 'Linux'
+    - name: Run pid1 tests
+      run: just test-init-image
+      if: runner.os == 'Linux'
     - name: clippy
       run: cargo clippy -- --deny "warnings"
     - name: fmt

justfile

@@ -13,12 +13,12 @@ test: build-release-binary
 
 # Test docker image
 test-init-image:
-	docker run --rm --name pid --interactive pid1runner ps aux
-	docker run --rm --name pid --interactive pid1runner ls
-	docker run --rm --name pid --interactive pid1runner ls /
-	docker run --rm --name pid --interactive pid1runner id
-	docker run --rm --name pid --interactive pid1runner --workdir=/home  pwd
-	docker run --rm --name pid --interactive pid1runner --env HELLO=WORLD --env=FOO=BYE printenv HELLO FOO
+	docker run --rm --interactive --name pid pid1runner ps aux
+	docker run --rm --interactive --name pid pid1runner ls
+	docker run --rm --interactive --name pid pid1runner ls /
+	docker run --rm --interactive --name pid pid1runner id
+	docker run --rm --interactive --name pid pid1runner --workdir=/home  pwd
+	docker run --rm --interactive --name pid pid1runner --env HELLO=WORLD --env=FOO=BYE printenv HELLO FOO
 
 # Exec init image
 exec-init-image:

pid1-exe/etc/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.18.4
+FROM ubuntu:22.04
 
 COPY pid1 /usr/bin/pid1
 

pid1/etc/Dockerfile

@@ -1,6 +1,4 @@
-FROM alpine
-
-RUN apk update && apk add coreutils procps
+FROM ubuntu:22.04
 
 COPY simple /simple