From 3e5f6a7c744badc982d23175c684e31c63ab1906 Mon Sep 17 00:00:00 2001
From: WireMock Admin <admin@wiremock.org>
Date: Wed, 9 Feb 2022 14:11:53 +0000
Subject: [PATCH] Simple example of starting a process in Java 17

---
 .dockerignore               | 19 +++++++++++++++++++
 .github/workflows/build.yml | 28 ++++++++++++++++++++++++++++
 .gitignore                  |  0
 Dockerfile                  |  9 +++++++++
 ProcessUser.java            | 10 ++++++++++
 5 files changed, 66 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 .github/workflows/build.yml
 create mode 100644 .gitignore
 create mode 100644 Dockerfile
 create mode 100644 ProcessUser.java

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..19d7b84
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,19 @@
+# Local build
+**/out/
+
+# Git
+/.git/
+.gitignore
+
+# IntelliJ
+/.idea/
+
+# macOS
+**/.DS_Store
+
+# GitHub
+/.github/
+
+# Docker
+Dockerfile
+.dockerignore
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..b123985
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,28 @@
+name: Multi Arch Docker Build
+
+on:
+  push:
+
+env:
+  DOCKER_BUILDKIT: 1
+  BUILDKIT_PROGRESS: plain
+  PROGRESS_NO_TRUNC: 1
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v2
+
+      # Allow us to build multi-arch images
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@master
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@master
+
+      - name: Do the build
+        run: docker buildx build --platform linux/arm64/v8,linux/amd64 .
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e69de29
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..af8a3ad
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,9 @@
+# syntax=docker/dockerfile:1.3.0-labs
+FROM eclipse-temurin:17.0.2_8-jdk-focal as builder
+
+COPY ProcessUser.java .
+RUN javac ProcessUser.java
+RUN java ProcessUser > /tmp/output.txt
+
+FROM scratch
+COPY --from=builder /tmp/output.txt .
diff --git a/ProcessUser.java b/ProcessUser.java
new file mode 100644
index 0000000..9965de3
--- /dev/null
+++ b/ProcessUser.java
@@ -0,0 +1,10 @@
+import java.io.IOException;
+
+public class ProcessUser {
+    public static void main(String[] args) throws IOException, InterruptedException {
+        new ProcessBuilder("uname", "-a")
+                .inheritIO()
+                .start()
+                .waitFor();
+    }
+}