Adds Dockerfile and Utility Scripts (#31446)

* Adds Dockerfile and Utility Scripts

* Remove RUSTG_VERSION from _build_dependencies.sh

* Moved documentation to references, added link to mkdocs.yml

* Update references, finish documentation, fix typos

* Fixed small error in docs and scripts

* Add CI action to build and publish game server images

* Bump CI action to compatible Ubuntu runner

* Fix up the base image for NanoMap rendering

* Remove commented out base for nanomap-build stage

* Removed default values from Dockerfile build arguments

Sanitized default arguments in Dockerfile
Updated CI workflow to use _build_dependencies.sh to build the Docker image
Added documentation on using --build-arg flags with the docker build command

* Modify caching for Docker builds in CI

* Add missing files to pacify Nanomap Renderer

.github/workflows/ci.yml

@@ -101,6 +101,67 @@ jobs:
           tools/ci/generate_maplist.sh
           DreamMaker -DMULTIINSTANCE -DCIMAP -DPARADISE_PRODUCTION_HARDWARE paradise.dme
 
+  docker_build:
+    name: Build (Docker)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Project
+        uses: actions/checkout@v6
+      - name: Load Build Dependencies
+        id: deps
+        shell: bash
+        run: |
+          set -euo pipefail
+          source ./_build_dependencies.sh
+          # export as step outputs
+          {
+            echo "NODE_VERSION=$NODE_VERSION"
+            echo "RUST_VERSION=$RUST_VERSION"
+            echo "STABLE_BYOND_MAJOR=$STABLE_BYOND_MAJOR"
+            echo "STABLE_BYOND_MINOR=$STABLE_BYOND_MINOR"
+            # metadata for provenance
+            echo "VCS_REF=${GITHUB_SHA}"
+            echo "BUILD_DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ)"
+          } >> "$GITHUB_OUTPUT"
+      - name: Generate Docker Metadata
+        id: docker_meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ghcr.io/paradisess13/paradise
+          tags: |
+            # branch event
+            type=ref,event=branch
+            # pull request event
+            type=ref,event=pr
+            # full length sha
+            type=sha,format=long
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        if: ${{ github.event_name != 'pull_request' }}
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Push Docker Image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}
+          push: ${{ github.event_name != 'pull_request' }}
+          build-args: |
+            NODE_VERSION=${{ steps.deps.outputs.NODE_VERSION }}
+            RUST_VERSION=${{ steps.deps.outputs.RUST_VERSION }}
+            STABLE_BYOND_MAJOR=${{ steps.deps.outputs.STABLE_BYOND_MAJOR }}
+            STABLE_BYOND_MINOR=${{ steps.deps.outputs.STABLE_BYOND_MINOR }}
+            VCS_REF=${{ steps.deps.outputs.VCS_REF }}
+            BUILD_DATE=${{ steps.deps.outputs.BUILD_DATE }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
   station_mapload_tests:
     name: Station Tests
     runs-on: ubuntu-22.04