Hello world examples and code templates

NOTE: Main example for skaffold/kustomize is ticktock.

Testing

go test ./...

Building binaries

The following only works with go 1.13 onward.

mkdir bin
go build -o bin ./...

Package as docker container

docker build --tag siuyin/junk --file helloworld.dockerfile .
docker build -t siuyin/junk -f helloworld.dockerfile .
docker build -t siuyin/junk -f goodbyeworld.dockerfile .

Deploy to kubernetes with skaffold

export KUBECONFIG=/path/to/kube/config
skaffold run               # deploys dev release
skaffold run -p prod       # deploys prod release

This currently deploys helloweb with opencensus monitoring.

Example of two pod deployment to kubernetes

export KUBECONFIG=/path/to/kube/config
skaffold run -f hello-nats-stream.skaffold.yaml
skaffold run -f hello-nats-stream.skaffold.yaml -p prod

Example with kustomize and ticktock binary

export KUBECONFIG=/path/to/kube/config
skaffold run -f ticktock.skaffold.yaml # deploys base kustomization
skaffold run -f ticktock.skaffold.yaml -p prod # deploys overlay/prod kustomization
skaffold run -f ticktock.skaffold.yaml -p test # deploys overlay/test kustomization

keycloak.kustomize

keycloak.kustomize holds kustomization scripts for my attempt at a production ready keycloak installation.

To install / delete:

export KUBECONFIG=/path/to/kube/config
kustomize build keycloak.kustomize/overlays/prod | kubectl apply -f -

kustomize build keycloak.kustomize/overlays/prod | kubectl delete -f -

keycloak sercure web app

Deploy keycloak server as shown above. Get the service address:

export KUBECONFIG=/path/to/kube/config
kubectl get svc -l sys=keycloak

skaffold run -f secureweb.skaffold.yaml -p dev