Installing Fission
Installation guide for Fission installation
Fission
Serverless Functions for Kubernetes
What is Fission?
Fission is a fast, open source serverless framework for Kubernetes with a focus on developer productivity and high performance.
Fission operates on just the code: Docker and Kubernetes are abstracted away under normal operation, though you can use both to extend Fission if you want to.
Fission is extensible to any language; the core is written in Go, and language-specific parts are isolated in something called environments (more below). Fission currently supports NodeJS, Python, Ruby, Go, PHP, Bash, and any Linux executable, with more languages coming soon.
Performance: 100msec cold start
Fission maintains a pool of “warm” containers that each contain a small dynamic loader. When a function is first called, i.e. “cold-started”, a running container is chosen and the function is loaded. This pool is what makes Fission fast: cold-start latencies are typically about 100msec.
Kubernetes is the right place for Serverless
We’re built on Kubernetes because we think any non-trivial app will use a combination of serverless functions and more conventional microservices, and Kubernetes is a great framework to bring these together seamlessly.
Building on Kubernetes also means that anything you do for operations on your Kubernetes cluster — such as monitoring or log aggregation — also helps with ops on your Fission deployment.
Fission Concepts
Visit concepts for more details.
Usage
# Add the stock NodeJS env to your Fission deployment
$ fission env create --name nodejs --image fission/node-env
# A javascript one-liner that prints "hello world"
$ curl https://raw.githubusercontent.com/fission/examples/master/nodejs/hello.js > hello.js
# Upload your function code to fission
$ fission function create --name hello --env nodejs --code hello.js
# Map GET /hello to your new function
$ fission route create --method GET --url /hello --function hello
# Run the function. This takes about 100msec the first time.
$ fission function test --name hello
Hello, world!
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Concepts
Concepts of Fission architecture
Architecture
Fission architecture in detail
Usage
Fission usage
Contributing to Fission
Build deploy and contribute to Fission!
Troubleshooting
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