tests/containers/nfs/run_nfs.sh
#!/usr/bin/env bash

set -uxo  pipefail

function start()
{

    # prepare /etc/exports
    for i in "$@"; do
        # fsid=0: needed for NFSv4
        echo "$i *(rw,fsid=0,insecure,no_root_squash)" >> /etc/exports
        echo "Serving $i"
    done

    # start rpcbind if it is not started yet
    /usr/sbin/rpcinfo 127.0.0.1 > /dev/null; s=$?
    if [ $s -ne 0 ]; then
       echo "Starting rpcbind"
       /usr/sbin/rpcbind -w
    fi

    mount -t nfsd nfsd /proc/fs/nfsd

    # -V 3: enable NFSv3
    /usr/sbin/rpc.mountd -N 2 -V 3

    /usr/sbin/exportfs -r
    # -G 10 to reduce grace time to 10 seconds (the lowest allowed)
    /usr/sbin/rpc.nfsd -G 10 -V 3
    /usr/sbin/rpc.statd --no-notify
    echo "NFS started"
}

function stop()
{
    echo "Stopping NFS"

    /usr/sbin/rpc.nfsd 0
    /usr/sbin/exportfs -au
    /usr/sbin/exportfs -f

    kill "$( pidof rpc.mountd )"
    umount /proc/fs/nfsd
    echo > /etc/exports
    exit 0
}

# rpc.statd has issues with very high ulimits
ulimit -n 65535

trap stop TERM

start "$@"

set +x
# Ugly hack to do nothing and wait for SIGTERM
while true; do
    sleep 5
done

