Unattended save backup via sysmodule, TLS verification, and server hardening

.github/workflows/publish-server-image.yml

@@ -0,0 +1,82 @@
+name: Publish server image
+
+# Builds server/Dockerfile and pushes it to GitHub's container registry.
+# Packages pushed to ghcr.io start out private — the image stays private
+# until its visibility is changed by hand under Packages -> Package settings.
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+    # No paths filter on purpose. It would apply to the tag push as well —
+    # there is only one push block, and GitHub evaluates the filter for every
+    # ref in it. Tagging a release on a commit that happens not to touch
+    # server/ (a docs or client commit, which is the common case) would then
+    # silently produce no image and no version tags at all.
+    #
+    # The cost of dropping it is a rebuild on commits that change nothing in
+    # the image. That takes well under a minute; a missing release does not
+    # announce itself.
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      # ghcr.io rejects upper case names, but repository owners may contain
+      # them (dmuiX). Normalise before it reaches any tag.
+      - name: Resolve image name
+        run: echo "IMAGE=ghcr.io/$(echo '${{ github.repository_owner }}' | tr '[:upper:]' '[:lower:]')/unss-server" >> "$GITHUB_ENV"
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to ghcr.io
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          # Provided automatically, no secret needs to be configured.
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Derive tags
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=tag
+            type=sha,format=short
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ./server
+          # arm64 is included so the image also runs on a Raspberry Pi.
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Summary
+        run: |
+          echo "### Pushed" >> "$GITHUB_STEP_SUMMARY"
+          echo '```' >> "$GITHUB_STEP_SUMMARY"
+          echo "${{ steps.meta.outputs.tags }}" >> "$GITHUB_STEP_SUMMARY"
+          echo '```' >> "$GITHUB_STEP_SUMMARY"

.gitignore

@@ -17,9 +17,19 @@ build/
 *.nsp
 *.xci
 
+# Switch homebrew (build leftovers)
+*.map
+
 # Server-side data
 savedata/
 metadata.sqlite
 
+# Runtime configuration — may contain the server URL including credentials
+# (the client accepts https://user:pass@host). Never commit these.
+config.ini
+
+# Logs
+*.log
+
 # Claude
 .claude/