Kubernetes + wasmCloud

wasmcloud

Last update: Oct 8, 2023

Related tags

Utilities kasmcloud

Overview

`KasmCloud`

Managing and Running Actors, Providers, and Links in Kubernetes

⚠️ Warning

This is a contributor-led experimental project and is not recommended to run in production at this time.

With each tag, it works fine, but there may be incompatible changes between tags.

Design

Combining WasmCloud with Kubernetes

Sample

Deploy Nats

$ helm repo add nats https://nats-io.github.io/k8s/helm/charts/
$ helm update
$ helm helm install kasmcloud-nats nats/nats

Deploy KasmCloud

$ kubectl -f ./deploy

Deploy Actor, Link and Provider

$ kubectl apply -f ./sample.yaml

$ kubectl get kasmcloud
NAME                               DESC          PUBLICKEY                                                  LINK   CONTROCTID             IMAGE
provider.kasmcloud.io/httpserver   HTTP Server   VAG3QITQQ2ODAOWB5TTQSDJ53XK3SHBEIFNK4AYJ5RKAX2UNSCAPHA5M   test   wasmcloud:httpserver   wasmcloud.azurecr.io/httpserver:0.17.0

NAME                     ACTORKEY                                                   PROVIDERKEY                                                CONTROCTID
link.kasmcloud.io/test   MBCFOPM6JW2APJLXJD3Z5O4CN7CPYJ2B4FTKLJUR5YR5MITIU7HD3WD5   VAG3QITQQ2ODAOWB5TTQSDJ53XK3SHBEIFNK4AYJ5RKAX2UNSCAPHA5M   wasmcloud:httpserver

NAME                      DESC   PUBLICKEY                                                  REPLICA   CAPS                                                   IMAGE
actor.kasmcloud.io/echo   Echo   MBCFOPM6JW2APJLXJD3Z5O4CN7CPYJ2B4FTKLJUR5YR5MITIU7HD3WD5   10        ["wasmcloud:httpserver","wasmcloud:builtin:logging"]   wasmcloud.azurecr.io/echo:0.3.8

curl echo server

$ # other terminal
$ kubectl port-forward service/kasmcloud-echo-http-server 8080:8080

$ curl 127.0.0.1:8080
{"body":[],"method":"GET","path":"/","query_string":""}

RoadMap

Add KasmCloudHost resource
Add status information for the resource
Add Kasmcloud Repeater module
Add rolling updates for Actor
Add DaemonSet deployment for Actor
Blue/Green Deployment for Actors and Providers

Comments

add server flags to webhook command

Feature or Problem

$ make build-webhook
$ ./bin/webhook -h
Usage of ./bin/webhook:
  -cert-dir string
        The webhook cert dir (default "/tmp/k8s-webhook-server/serving-certs/")
  -health-probe-bind-address string
        The address the probe endpoint binds to. (default ":8081")
  -kubeconfig string
        Paths to a kubeconfig. Only required if out-of-cluster.
  -metrics-bind-address string
        The address the metric endpoint binds to. (default ":8080")
  -port int
        The webhook Server port (default 9443)
  -zap-devel
        Development Mode defaults(encoder=consoleEncoder,logLevel=Debug,stackTraceLevel=Warn). Production Mode defaults(encoder=jsonEncoder,logLevel=Info,stackTraceLevel=Error) (default true)
  -zap-encoder value
        Zap log encoding (one of 'json' or 'console')
  -zap-log-level value
        Zap Level to configure the verbosity of logging. Can be one of 'debug', 'info', 'error', or any integer value > 0 which corresponds to custom debug levels of increasing verbosity
  -zap-stacktrace-level value
        Zap Level at and above which stacktraces are captured (one of 'info', 'error', 'panic').
  -zap-time-encoding value
        Zap time encoding (one of 'epoch', 'millis', 'nano', 'iso8601', 'rfc3339' or 'rfc3339nano'). Defaults to 'epoch'.

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[x] x86_64-linux
[x] aarch64-linux
[ ] x86_64-darwin
[x] aarch64-darwin
[ ] x86_64-windows

Tested on platform(s)

[x] x86_64-linux
[x] aarch64-linux
[ ] x86_64-darwin
[x] aarch64-darwin
[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification

opened by Iceber 0

update resource defaulter and validater
Feature or Problem

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
add scale subresource for actors
Feature or Problem

$ kubectl scale --replicas=30 actor echo

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
add tracing log and support otel
Feature or Problem

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
add linkName field to Link
Feature or Problem

Using only the name of a Link resource does not make it the name of a LinkDefinition; a Link with the same name is used to associate a different actor with a different contract_id.

A LinkDefinition is identified using sha256 for actor_key, contract_id and link_name.

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
move actor.replica to actor.replicas
Feature or Problem

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
change to use kubebuilder to generate crds and sync the struct of resources
Feature or Problem

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
init resource webhook server
Feature or Problem

Initializing a webhook server for resources with kubebuilder

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
init kasmcloud with kubebuilder
Feature or Problem

Use kubebuilder to initialize your project.

For developing kubernetes applications, golang is more appropriate. kubebuilder simplifies webhook and upper level application development.

Related Issues

Release Information

Consumer Impact

Testing

Built on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[ ] aarch64-darwin

[ ] x86_64-windows

Unit Test(s)

Acceptance or Integration

Manual Verification
opened by Iceber 0
chore: fix sample commands in README.md
Feature or Problem

Sample commands were not working due to typos.

Tested on platform(s)

[ ] x86_64-linux

[ ] aarch64-linux

[ ] x86_64-darwin

[x] aarch64-darwin

[ ] x86_64-windows
opened by 0xE282B0 0

Owner

wasmcloud

Bringing joy to the act of building distributed applications with low boilerplate, secure by default WebAssembly modules. CNCF sandbox application runtime.

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