This plugin brings Kubeless support within the Serverless Framework.
Kubeless is a Kubernetes-native Serverless solution.
Make sure you have a kubernetes endpoint running and kubeless installed:
$ kubectl version
$ brew install kubeless/tap/kubeless
$ KUBELESS_VERSION=0.1.0
$ kubectl create ns kubeless
$ curl -sL https://github.com/kubeless/kubeless/releases/download/v$KUBELESS_VERSION/kubeless-v$KUBELESS_VERSION.yaml | kubectl create -f -Then install serverless
$ npm install serverless -gClone this repo and check the example function
$ git clone https://github.com/serverless/serverless-kubeless
$ cd examples/get-python
$ cat serverless.yml
service: hello
provider:
name: kubeless
runtime: python2.7
plugins:
- serverless-kubeless
functions:
hello:
description: 'Hello function'
handler: handler.helloDownload dependencies
$ npm installDeploy function.
$ serverless deploy
Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Deploying function hello...
Serverless: Function hello succesfully deployedThe function will be deployed to k8s via kubeless.
$ kubectl get function
NAME KIND
hello Function.v1.k8s.io
$ kubectl get po
NAME READY STATUS RESTARTS AGE
hello-1815473417-1ttt7 1/1 Running 0 1mNow you will be able to call the function:
$ serverless invoke -f hello -l
Serverless: Calling function: hello...
--------------------------------------------------------------------
hello worldYou can also check the logs for the function:
$ serverless logs -f hello
172.17.0.1 - - [12/Jul/2017:09:47:18 +0000] "GET /healthz HTTP/1.1" 200 2 "" "Go-http-client/1.1" 0/118
172.17.0.1 - - [12/Jul/2017:09:47:21 +0000] "GET /healthz HTTP/1.1" 200 2 "" "Go-http-client/1.1" 0/93
172.17.0.1 - - [12/Jul/2017:09:47:24 +0000] "GET /healthz HTTP/1.1" 200 2 "" "Go-http-client/1.1" 0/108
172.17.0.1 - - [12/Jul/2017:09:47:25 +0000] "GET / HTTP/1.1" 200 11 "" "" 0/316Or you can obtain the function information:
$ serverless info
Service Information "hello"
Cluster IP: 10.0.0.51
Type: NodePort
Ports:
Protocol: TCP
Port: 8080
Target Port: 8080
Node Port: 30018
Function Info
Description: Hello function
Handler: handler.hello
Runtime: python2.7
Trigger: HTTP
Dependencies:If you are using minikube you can call directly the function through HTTP and the Node Port in which the function is running:
$ curl http://192.168.99.100:30018
hello worldYou can access the function through its HTTP interface as well using kubectl proxy and accessing:
$ curl http://127.0.0.1:8001/api/v1/namespaces/default/services/hello/proxy/
hello worldIf you have a change in your function and you want to redeploy it you can run:
$ serverless deploy function -f hello
Serverless: Redeploying hello...
Serverless: Function hello succesfully deployedFinally you can remove the function.
$ serverless remove
Serverless: Removing function: hello...
Serverless: Function hello succesfully deleted
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