Powershell helper functions for kubernetes

Dockerfile

FROM kterada0509/docker-revel:latest
EXPOSE 9000
ADD  . /go/src/myapp-revel
WORKDIR $GOPATH
CMD revel run myapp-revel

set-dockerenv.ps1

# A utility function for setting relevant kubernetes variables in 
# a powershell process
function set-dockerenv
{
    $res = minikube docker-env | select-string "^export (DOCKER_\S*?)\s*=\s*(.*)$"

    $res | foreach-object -process {
        if ($_ -match '^export (DOCKER_\S*?)\s*=\s*(.*)$')
        { set-item -force -path "env:$($matches[1])" -value $matches[2].replace('"', ''); }
        else
        { write-error "Error setting $matches[1] to $matches[2]" }
    }
}

# A utility function for clearing relevant kubernetes env variables from
# powershell
function unset-dockerenv
{
    $res = minikube docker-env -u
    $res | foreach-object -process {
        if ($_ -match '^unset (DOCKER_\S*?)$')
        { set-item -force -path "env:$($matches[1])" -value ''; }
    }
}