set up dockerfile + action

.github/workflows/push_dev.yml

+name: build development images
+
+on:
+  push:
+    branches:
+      - dev
+
+env:
+  REGISTRY_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+  REGISTRY_TOKEN: ${{ secrets.DOCKER_TOKEN }}
+  DOCKER_REGISTRY_LOGIN: "dockerhub.ebi.ac.uk"
+  SINGULARITY_REGISTRY_LOGIN: "oras://dockerhub.ebi.ac.uk"
+  DOCKER_REGISTRY: "dockerhub.ebi.ac.uk/gdp-public/hattivatti"
+  SINGULARITY_REGISTRY: "oras://dockerhub.ebi.ac.uk/gdp-public/hattivatti/singularity"
+  SINGULARITY_VERSION: "3.8.3"
+
+jobs:
+  build_docker_dev:
+    name: build docker development image
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: arm64
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.DOCKER_REGISTRY_LOGIN }}
+          username: ${{ env.REGISTRY_USERNAME }}
+          password: ${{ env.REGISTRY_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          push: true
+          platforms: "linux/amd64,linux/arm64"
+          tags: ${{ env.DOCKER_REGISTRY }}/hattivatti:dev
+
+  build_singularity_dev:
+    needs: build_docker_dev
+    name: build singularity development image
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out pipeline code
+        uses: actions/checkout@v3
+
+      - name: Cache singularity setup
+        id: cache-singularity
+        uses: actions/cache@v3
+        with:
+          path: /opt/hostedtoolcache/singularity/${{ env.SINGULARITY_VERSION }}/x64
+          key: ${{ runner.os }}-singularity-${{ env.SINGULARITY_VERSION }}
+
+      - name: Set up Singularity
+        uses: eWaterCycle/setup-singularity@v7
+        if: steps.cache-singularity.outputs.cache-hit != 'true'
+        with:
+          singularity-version: ${{ env.SINGULARITY_VERSION }}
+
+      - name: Add singularity to path
+        if: steps.cache-singularity.outputs.cache-hit == 'true'
+        run: |
+          echo "/opt/hostedtoolcache/singularity/${{ env.SINGULARITY_VERSION }}/x64/bin" >> $GITHUB_PATH
+
+      - name: Build singularity image
+        run: singularity build img.sif "docker://${DOCKER_REGISTRY}/hattivatti:dev"
+
+      - name: Push singularity image
+        run: |
+          echo "$REGISTRY_TOKEN" | singularity remote login -u "$REGISTRY_USERNAME" --password-stdin "$SINGULARITY_REGISTRY_LOGIN"
+          singularity push img.sif "${SINGULARITY_REGISTRY}/hattivatti:dev"

Dockerfile

+FROM --platform=linux/amd64 rust:bookworm AS build
+
+WORKDIR /opt/build
+
+COPY . ./
+
+RUN cargo build --target x86_64-unknown-linux-gnu
+
+FROM --platform=linux/amd64 debian:stable-slim
+
+COPY --from=build /opt/build/target/x86_64-unknown-linux-gnu/debug/hattivatti /opt/
+
+CMD ["/opt/hattivatti"]
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