Run deployment tests from Docker build context

.gitea/scripts/deploy-environment.sh

@@ -14,12 +14,13 @@ NODES="${NODES:-192.168.86.72 192.168.86.73 192.168.86.74}"
 BUILD_TAG="$(git rev-parse HEAD)"
 API_IMAGE="step3-questions:${BUILD_TAG}"
 WEB_IMAGE="step3-web:${BUILD_TAG}"
+TEST_IMAGE="step3-tests:${BUILD_TAG}"
 API_TAR="/tmp/step3-questions-${DEPLOYMENT_ENVIRONMENT}.tar"
 WEB_TAR="/tmp/step3-web-${DEPLOYMENT_ENVIRONMENT}.tar"
 
 cleanup() {
   rm -f "${API_TAR}" "${WEB_TAR}"
-  docker image rm "${API_IMAGE}" "${WEB_IMAGE}" 2>/dev/null || true
+  docker image rm "${API_IMAGE}" "${WEB_IMAGE}" "${TEST_IMAGE}" 2>/dev/null || true
   docker image prune -f >/dev/null || true
 }
 trap cleanup EXIT
@@ -32,12 +33,7 @@ docker builder prune -af || true
 docker system df
 df -h
 
-docker run --rm \
+docker build -f api/QuestionsApi.Tests/Dockerfile -t "${TEST_IMAGE}" .
-  --volume "${PWD}:/src" \
-  --workdir /src \
-  --env DOTNET_CLI_TELEMETRY_OPTOUT=1 \
-  mcr.microsoft.com/dotnet/sdk:8.0 \
-  dotnet test api/QuestionsApi.Tests/QuestionsApi.Tests.csproj -c Release
 docker build --build-arg BUILD_REVISION="${BUILD_TAG}" -t "${API_IMAGE}" api/QuestionsApi
 docker build \
   --build-arg BUILD_REVISION="${BUILD_TAG}" \

api/QuestionsApi.Tests/Dockerfile

@@ -0,0 +1,8 @@
+FROM mcr.microsoft.com/dotnet/sdk:8.0
+
+WORKDIR /src
+COPY api/ ./api/
+
+ENV DOTNET_CLI_TELEMETRY_OPTOUT=1
+
+RUN dotnet test api/QuestionsApi.Tests/QuestionsApi.Tests.csproj -c Release