Learn OPENFAAS with Real Code Examples

Install Docker and/or Kubernetes

Install OpenFaaS CLI via `brew install faas-cli` or `curl`

Deploy OpenFaaS via Helm chart or Docker Compose

Log in to OpenFaaS gateway with `faas-cli login`

Verify deployment by listing functions `faas-cli list`

Install Docker or Kubernetes

Install faas-cli

Deploy OpenFaaS gateway

Configure authentication and registry

Verify setup by listing and invoking functions

stack.yml - defines functions and deployments

handler/ - function source code

template/ - language-specific templates

Dockerfile - container build instructions

faas-cli.yml - CLI configuration (optional)

faas-cli new <func> --lang python3

faas-cli build

faas-cli push

faas-cli deploy

faas-cli invoke <func>

OpenFaaS UI supports multiple locales

Function code can handle localized data

UTF-8 encoding by default

API responses can be localized

Integrates with external translation services

Web UI accessible via browser

API endpoints available for automation

CLI supports scripts and pipelines

Metrics can be visualized via Grafana

Can be integrated with accessible dashboards

Web UI for function management

Dashboard for monitoring

CLI and REST APIs for automation

No front-end templating included by default

Integrate with existing web apps for function output display

Stateless functions by default

Persistent storage via external databases

Secrets management for sensitive info

Scaling managed by OpenFaaS controller

Function state passed via inputs/events

Input via HTTP, queue, or cron events

Process and return JSON, binary, or text data

Integrate with databases or external APIs

Cache data externally if needed

Event-driven workflows enable decoupled pipelines