Fix docker build

.github/workflows/ci-pipeline.yml

@@ -424,6 +424,8 @@ jobs:
     runs-on: ubuntu-latest
     needs: start-ci-run-gate
     if: (!(cancelled() || failure()) && needs.start-ci-run-gate.result == 'success')
+    env:
+      TGS_TELEMETRY_KEY_FILE: tgs_telemetry_key.txt
     steps:
     - name: Checkout (Branch)
       uses: actions/checkout@v4
@@ -435,8 +437,16 @@ jobs:
       with:
         ref: "refs/pull/${{ github.event.number }}/merge"
 
+    - name: Setup Telemetry Key File
+      shell: bash
+      run: echo "${{ secrets.TGS_TELEMETRY_KEY }}" > ${{ env.TGS_TELEMETRY_KEY_FILE }}
+
     - name: Build Docker Image
-      run: docker build . -f build/Dockerfile
+      run: docker build . -f build/Dockerfile --build-arg TGS_TELEMETRY_KEY_FILE=${{ env.TGS_TELEMETRY_KEY_FILE }}
+
+    - name: Delete Telemetry Key File
+      if: always()
+      run: rm ${{ env.TGS_TELEMETRY_KEY_FILE }}
 
   linux-unit-tests:
     name: Linux Tests

build/Dockerfile

@@ -1,5 +1,8 @@
 FROM mcr.microsoft.com/dotnet/sdk:8.0-bookworm-slim AS build
 
+# Set in CI
+ARG TGS_TELEMETRY_KEY_FILE=
+
 # install node and npm
 # replace shell with bash so we can source files
 RUN curl --silent -o- https://raw.githubusercontent.com/creationix/nvm/v0.39.1/install.sh | sh
@@ -17,7 +20,8 @@ RUN . $NVM_DIR/nvm.sh \
 	&& apt-get install -y \
 		dos2unix \
 		libgdiplus \
-	&& rm -rf /var/lib/apt/lists/*
+	&& rm -rf /var/lib/apt/lists/* \
+	&& corepack enable
 
 # Build web control panel
 WORKDIR /repo/build
@@ -45,7 +49,9 @@ RUN dotnet publish -c Release -o /app \
 	&& build/RemoveUnsupportedRuntimes.sh /app
 
 WORKDIR /repo/src/Tgstation.Server.Host
-RUN dotnet publish -c Release -o /app/lib/Default \
+
+RUN export TGS_TELEMETRY_KEY_FILE="${TGS_TELEMETRY_KEY_FILE}" \
+	&& dotnet publish -c Release -o /app/lib/Default \
 	&& cd ../.. \
 	&& build/RemoveUnsupportedRuntimes.sh /app/lib/Default \
 	&& mv /app/lib/Default/appsettings* /app

src/Tgstation.Server.Host/Tgstation.Server.Host.csproj

@@ -60,6 +60,7 @@
   </Target>
 
   <Target Condition="'$(TGS_TELEMETRY_KEY_FILE)' != ''" Name="ApplyTelemetryAppSerializedKey" BeforeTargets="CoreCompile">
+    <Error Condition="!Exists('$(TGS_TELEMETRY_KEY_FILE)')" Text="TGS_TELEMETRY_KEY_FILE set but does not exist!" />
     <ReadLinesFromFile
         File="$(TGS_TELEMETRY_KEY_FILE)" >
         <Output