Docker env file to kube configmap

generate_configmap.sh

#!/bin/bash
##
## Script to generate a kube-compatible configmap out
## of a docker env file. might be handy for
## the ops guys that deal with devs
##
## (c) 2020 Giuseppe Paterno' <gpaterno@gpaterno.com>
##

ENVFILE=${ENVFILE:-"../.env_prod"}
MAPNAME="prometeon-website"

# Usage
usage() { 
  echo "Usage: $0 [-e <env file>] [-n <map name>]" 1>&2
  exit 1
}

# Get option
while getopts ":e:n:" o; do
    case "${o}" in
        n)
            MAPNAME=${OPTARG}
            ;;
        e)
            ENVFILE=${OPTARG}
            ;;
        *)
            usage
            ;;
    esac
done
shift $((OPTIND-1))

cat << __EOF__
apiVersion: v1
kind: ConfigMap
metadata:
  creationTimestamp: null
  name: $MAPNAME
data:
__EOF__

## Output the env file and transfor
if [ -f $ENVFILE ]
then
    cat $ENVFILE | awk -F= 'BEGIN{ OFS = ":"} ; !/^#/ && !/^$/ { print "  " $1, " " "\"" $2 "\""}'
fi