feat: add ftl-in-a-box Docker image (#1869)

.github/workflows/release.yml

@@ -43,6 +43,25 @@ jobs:
           name: docker-controller-artifact
           path: artifacts/ftl-controller
           retention-days: 1
+  build-box:
+    name: Build FTL-in-a-box Docker Image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Init Hermit
+        uses: cashapp/activate-hermit@v1
+      - name: Build
+        run: |
+          docker build -t ftl0/ftl-box:"$GITHUB_SHA" -t ftl0/ftl-box:latest -f Dockerfile.box .
+          mkdir -p artifacts/ftl-box
+          docker save -o artifacts/ftl-box/ftl-box.tar ftl0/ftl-box:latest
+      - name: Temporarily save Docker image
+        uses: actions/upload-artifact@v4
+        with:
+          name: docker-box-artifact
+          path: artifacts/ftl-box
+          retention-days: 1
   release-docker:
     name: Release Assets
     runs-on: ubuntu-latest
@@ -67,10 +86,17 @@ jobs:
         with:
           name: docker-controller-artifact
           path: artifacts/ftl-controller
+      - name: Retrieve FTL-in-a-box Docker image
+        uses: actions/download-artifact@v4
+        with:
+          name: docker-box-artifact
+          path: artifacts/ftl-box
       - name: Load Runner Docker image
         run: docker load -i artifacts/ftl-runner/ftl-runner.tar
       - name: Load Controller Docker image
         run: docker load -i artifacts/ftl-controller/ftl-controller.tar
+      - name: Load FTL-in-a-box Docker image
+        run: docker load -i artifacts/ftl-box/ftl-box.tar
       - name: Log in to the Container registry
         uses: docker/login-action@v3
         with:
@@ -85,6 +111,9 @@ jobs:
           docker tag ftl0/ftl-controller:latest ftl0/ftl-controller:"$GITHUB_SHA"
           docker tag ftl0/ftl-controller:latest ftl0/ftl-controller:"$version"
           docker push -a ftl0/ftl-controller
+          docker tag ftl0/ftl-box:latest ftl0/ftl-box:"$GITHUB_SHA"
+          docker tag ftl0/ftl-box:latest ftl0/ftl-box:"$version"
+          docker push -a ftl0/ftl-box
   create-release:
     name: Release Go Binaries
     runs-on: ubuntu-latest

Dockerfile.box

@@ -0,0 +1,49 @@
+FROM ubuntu:24.04 AS builder
+RUN apt-get update
+RUN apt-get install -y curl git zip
+
+# Seed some of the most common tools - this will be cached
+COPY ./bin /src/bin
+ENV PATH="/src/bin:$PATH"
+ENV HERMIT_STATE_DIR=/hermit
+RUN hermit uninstall jbr
+RUN hermit install openjre-18.0.2.1_1
+# openjre and jbr conflict, but we want the JRE in the cache
+RUN hermit uninstall openjre
+RUN hermit install jbr
+RUN go version
+RUN mvn -f kotlin-runtime/ftl-runtime -B --version
+
+WORKDIR /src
+
+# Download Go dependencies separately so Docker will cache them
+COPY go.mod go.sum /src/
+RUN go mod download -x
+
+COPY . /src/
+
+# Build runner template
+RUN just build-kt-runtime
+
+# Build runner
+RUN just errtrace
+# Reset timestamps so that the build state is reset
+RUN git ls-files -z | xargs -0 touch -r go.mod
+RUN just build ftl
+
+# Finally create the runtime image.
+FROM ubuntu:24.04
+
+WORKDIR /root/
+
+ENV PATH="/root/jre/bin:$PATH"
+COPY --from=builder /hermit/pkg/openjre-18.0.2.1_1/ ./jre/
+COPY --from=builder /src/build/template template
+COPY --from=builder /src/build/release/ftl-runner .
+COPY --from=builder /src/build/release/ftl .
+RUN mkdir deployments
+
+EXPOSE 8891
+EXPOSE 8892
+
+CMD ["/root/ftl", "dev"]