CI/CD pipeline for an ASP.NET Core service: PR checks, Docker image per commit, Azure deploy

xUnit Testing & CI/CD in .NET November 13, 2026 dockerfile

On every PR: build, unit and integration tests, analyzers with warnings-as-errors, dependency scan (dotnet list package --vulnerable), secret scan, mandatory human review.

docker
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
# ======================================================================
# Q: Describe a good CI/CD pipeline for this service.
#
# - On every PR: build, unit and integration tests, analyzers with warnings-as-
#   errors, dependency scan (dotnet list package --vulnerable), secret scan,
#   mandatory human review.
# - On merge to main: build the Docker image once, tagged with the commit SHA.
#   The same image is promoted from staging to prod.
# - Deployment: migration script, deploy to Azure App Service (slot swap) or
#   Container Apps, smoke test, automatic rollback.
# ======================================================================

# Multi-stage Dockerfile for the .NET 9 API (non-root runtime)
FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
WORKDIR /src
COPY *.csproj ./
RUN dotnet restore
COPY . .
RUN dotnet publish -c Release -o /app --no-restore

FROM mcr.microsoft.com/dotnet/aspnet:9.0
WORKDIR /app
COPY --from=build /app .
USER $APP_UID            # non-root
ENTRYPOINT ["dotnet", "Api.dll"]