kubernetes helm

Auto-trigger docker build for kubernetes helm when new release is announced

NOTES

The latest docker tag is the latest release verison (https://github.com/helm/helm/releases/latest)

Please avoid to use latest tag for any production deployment. Tag with right version is the proper way, such as alpine/helm:3.1.1

Github Repo

https://github.com/alpine-docker/helm

Daily Travis CI build logs

https://travis-ci.org/alpine-docker/helm

Docker image tags

https://hub.docker.com/r/alpine/helm/tags/

Usage

# mount local folders in container.
docker run -ti --rm -v $(pwd):/apps -w /apps \
    -v ~/.kube:/root/.kube -v ~/.helm:/root/.helm -v ~/.config/helm:/root/.config/helm \
    -v ~/.cache/helm:/root/.cache/helm \
    alpine/helm

# Run helm with special version. The tag is helm's version
docker run -ti --rm -v $(pwd):/apps -w /apps \
    -v ~/.kube:/root/.kube -v ~/.helm:/root/.helm -v ~/.config/helm:/root/.config/helm \
    -v ~/.cache/helm:/root/.cache/helm \
    alpine/helm:3.1.1

# run container as command
alias helm="docker run -ti --rm -v $(pwd):/apps -w /apps \
    -v ~/.kube:/root/.kube -v ~/.helm:/root/.helm -v ~/.config/helm:/root/.config/helm \
    -v ~/.cache/helm:/root/.cache/helm \
    alpine/helm"
helm --help

# example in ~/.bash_profile
alias helm='docker run -e KUBECONFIG="/root/.kube/config:/root/.kube/some-other-context.yaml" -ti --rm -v $(pwd):/apps -w /apps \
    -v ~/.kube:/root/.kube -v ~/.helm:/root/.helm -v ~/.config/helm:/root/.config/helm \
    -v ~/.cache/helm:/root/.cache/helm \
    alpine/helm'

Why we need it

Mostly it is used during CI/CD (continuous integration and continuous delivery) or as part of an automated build/deployment

The Processes to build this image

• Enable Travis CI cronjob on this repo to run build daily on master branch
• Check if there are new tags/releases announced via Github REST API
• Match the exist docker image tags via Hub.docker.io REST API
• If not matched, build the image with release version and push to https://hub.docker.com/
• Get the latest version from https://github.com/helm/helm/releases/latest, pull the image with that version, tag as alpine/helm:latest and push to hub.docker.com