helper to start a kubernetes utility with options

kquick

#!/bin/bash

image="dhrp/tools:slim" # Default image
serviceaccount="default" # Default service account
pvcname=""

while [[ $# -gt 0 ]]; do
    case $1 in
        --full)
            image="dhrp/tools:full"
            shift
            ;;
        --serviceaccount)
            serviceaccount=$2
            shift 2
            ;;
        --pvc)
            pvcname=$2
            shift 2
            ;;
        *)
            shift
            ;;
    esac
done

if [ -n "$pvcname" ]; then
    volumeMounts=$(cat <<EOF
    volumeMounts:
    - mountPath: /mnt/data
      name: mypvc
EOF
    )

    volumes=$(cat <<EOF
  volumes:
  - name: mypvc
    persistentVolumeClaim:
      claimName: $pvcname
EOF
    )
else
    volumeMounts=""
    volumes=""
fi

overrides=$(cat <<EOF
apiVersion: v1
spec:
  serviceAccountName: $serviceaccount
  containers:
  - name: tools
    image: $image
    command: 
     - /bin/bash
    tty: true
    stdin: true
$volumeMounts
$volumes
EOF
)

echo "$overrides"

JSONOVERRIDES=$(echo "$overrides" | yq -o=json)

echo "Will connect when running, and delete when done"

command="kubectl run tools --attach -it --rm --image $image --overrides '$JSONOVERRIDES' --command /bin/bash"

eval $command