SystemdHealthcheck

Use of systemd healthcheck mechanism, and mediator design pattern for communication between the API and the components as well as between HosterServices.

Health Check available at: /health

Health Check UI available at: /health-ui

Swagger available at : /swagger

Serilog is used for logging in console as well as publishing logs to a server.

CI/CD example using Gihub Actions, Azure Pipelines and Gitlab CI:

• Unit testing
• Publish to Heroku
• API testing using newman
• Publish to Docker HUB

Project initialization

Initial project created with command: dotnet new webapi --no-https

Docker support

Done in Visual Studio Code using :

Command Palette (Ctrl+Shift+P) and enter Docker: Add Docker Files to Workspace....

For debug: you can instead do Docker: Initialize for Docker debugging

Docker health check

Added to Dockerfile: HEALTHCHECK CMD curl --fail http://localhost:80/health || exit 1

To test: docker inspect --format='{{json .State.Health}}' CONTAINER_ID

Build for linux

To build for Raspberry Pie 3: dotnet publish -c Release -r linux-arm64 --self-contained true

systemd support

Move the file SystemdHealthcheck.service to: /etc/systemd/system/SystemdHealthcheck.service

Then: sudo systemctl start SystemdHealthcheck

To see the status: sudo systemctl status SystemdHealthcheck

Give gitlab-runner sudo permission

sudo usermod -a -G sudo gitlab-runner

then, sudo visudo

and add to the bottom of the file: gitlab-runner ALL=(ALL) NOPASSWD: ALL