kubersh.sh

#!/bin/sh
# Wrapper for using kubectl as "ssh", for rsync and git
# - setting either $RSYNC_RSH or $GIT_SSH env variables
namespace=''
pod=$1
shift

# POD[@NAMESPACE]:DEST
if [ "X$pod" = "X-l" ]; then
    pod=$1
    shift
    namespace="-n $1"
    shift
fi

if [ "$1" = "rsync" ]; then
    exec kubectl $namespace exec -i $pod -- "$@"
else # git-receive-pack '*'
    exec kubectl $namespace exec -i $pod -- /bin/sh -c "$@"
fi