This is a self-paced workshop for learning how to build, deploy and run OpenFaaS functions.
This workshop starts by deploying OpenFaaS your laptop with Docker for Mac or Windows and then shows how to build, deploy and invoke Serverless functions in Python. Topics will include: managing dependencies with pip, dealing with API tokens through secure secrets, monitoring functions with Prometheus, invoking functions asynchronously and chaining functions together to create applications. We finish by connecting to online event-streams through IFTTT.com - this will enable you to build bots, auto-responders and integrations with social media and IoT devices.
Requirements:
- Functions will be written in Python, so prior programming or scripting experience is preferred
- Install the recommended code-editor / IDE VSCode
- Preferred OS: MacOS, Windows 10 Pro/Enterprise, Ubuntu Linux
- Docker
- Docker for Mac/Windows Edge
- Docker CE for Linux
Note: As a last resort if you have an incompatible PC you can run the workshop on http://play-with-docker.com.
Disclaimer: this workshop is a work-in-progress - labs 2-4 are ready.
- Install pre-requisites
- Docker Hub account
- OpenFaaS CLI
- Set up a single-node cluster with Docker Swarm
- Deploy OpenFaaS
- Use the UI Portal
- Learn about the CLI
- Deploy via the Function Store
- Find metrics with Prometheus
- Scaffold or generate a new function
- Build the space-counter function
- Add dependencies with
pip - Troubleshooting: verbose output with
write_debug - Troubleshooting: find the container's logs
- Use third-party language templates
- Extend timeouts with
read_timeout - Inject configuration through environmental variables
- Use HTTP context - querystring / headers etc
- Call a function asynchronously vs synchronously
- View the queue-worker's logs
- Use an
X-Callback-Urlwith requestbin and ngrok
- Make use of another function
- Director pattern
Triaging customer feedback from Twitter
- Receiving Tweets from IFTTT.com
- Filtering out unwanted messages
- Sorting good + bad with SentimentAnalysis
- Forwarding to two different Slack channels
You can start with the first lab Lab 1.
If you're taking an instructor-led workshop, we'll now take Q&A and cover some advanced topics too.
- What is auto-scaling and how does it work?
- How to monitoring functions with a dashboard in Grafana
- How to enable TLS for security
- How to lock down the gateway with Basic Authentication
- Object storage with S3/Minio
- How to build your own templates
- How to customise the templates