lummie

package main

import (
	"fmt"
	"log"
	"sync"
)

/*
This is an example of a worker pattern for channels

lummie

# install kube-ps1 from https://github.com/jonmosco/kube-ps1
alias sn="kubectl config set-context --current --namespace" # switch namespace


# setup bash prompt
source "/usr/local/opt/kube-ps1/share/kube-ps1.sh" && k8s='$(kube_ps1)' # k8s cluster
export   PS1="\n\n  🦔" # headgehog
export PS1="$PS1\n┏━━━━━┯━ 🕰 \t ━━━━━━━━━━━━━━━━━━━━━━━━━" # headgehog
export PS1="$PS1\n┃ git │ \$(git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/')" # git branch
export PS1="$PS1\n┃ k8s │ $k8s" # k8s info

lummie

/*
Waits for a terminate | interrupt signal, ctrl-c before finishing main

when creating services and adapters, I like to return a cleanup function that is deferred for
each service, thus when the app closes they are teared down in reverse order.

graceful.Exit() returns two functions:

  - waitFor - which is called as the last statement of main. This will block until a signal to terminate or interrupt the executable.
  - deferMe - defer this first before the service cleanups. This ensures thar stdout/err are flushed and sleeps 1 second before exiting.