chore: re-add build files

.github/workflows/build.yml

@@ -0,0 +1,45 @@
+name: build
+
+on: [ workflow_dispatch ]
+
+jobs:
+  everything:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Cache Docker layers
+        uses: actions/cache@v4
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-updatetar
+          restore-keys: |
+            ${{ runner.os }}-buildx-updatetar
+      - name: Build Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: build/ci.Dockerfile
+          load: true
+          tags: ci_image:latest
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      - name: Extract artifact from Docker image
+        run: |
+          docker create --name extract_artifact ci_image:latest
+          docker cp extract_artifact:/lamassu-server.tar.gz ./lamassu-server.tar.gz
+          docker rm extract_artifact
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: lamassu-server.tar.gz
+          path: lamassu-server.tar.gz
+
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache 
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

build/ci.Dockerfile

@@ -0,0 +1,33 @@
+FROM ubuntu:20.04 as base
+
+ARG VERSION
+ARG DEBIAN_FRONTEND=noninteractive
+ENV TZ=Europe/Lisbon
+
+RUN apt-get update
+
+RUN apt-get install -y -q curl \
+                          sudo \
+                          git \
+                          python2-minimal \
+                          build-essential \
+                          libpq-dev \
+                          net-tools \
+                          tar
+
+RUN curl -sL https://deb.nodesource.com/setup_22.x | sudo -E bash -
+RUN apt-get install nodejs -y -q
+
+WORKDIR lamassu-server
+
+COPY ["package.json", "package-lock.json", "./"]
+RUN npm version --allow-same-version --git-tag-version false --commit-hooks false 1.0.0
+RUN npm install --production
+
+COPY . ./
+
+RUN cd new-lamassu-admin && npm install && npm run build
+RUN mv new-lamassu-admin/build public/
+RUN rm -rf new-lamassu-admin/node_modules
+
+RUN cd .. && tar -zcvf lamassu-server.tar.gz ./lamassu-server