#!/bin/sh
# install server and client, do some mounts, verify that it boots and works
set -e

if ! [ -x /tmp/autopkgtest-reboot ]; then
    echo "SKIP: testbed does not support rebooting"
    exit 0
fi

pre_boot_setup() {
    # set up some exports
    cat <<EOF >> /etc/exports
/home localhost(rw,no_root_squash,no_subtree_check)
/var/log/ localhost(ro,no_root_squash,subtree_check)
EOF

    # set up client mounts
    mkdir -p /mnt/nfs_home /mnt/nfs_log
    cat << EOF >> /etc/fstab
localhost:/home /mnt/nfs_home nfs defaults,nofail 0 0
localhost:/var/log /mnt/nfs_log nfs defaults,nofail 0 0
EOF
}

fail() {
    echo "FAIL: $1" >&2
    exit 1
}

post_boot_tests() {
    # ensure we have our mounts
    mount | grep 'localhost:.*nfs_home' || fail "nfs_home not mounted"
    mount | grep 'localhost:.*nfs_log' || fail "nfs_log not mounted"

    # test that we can write to NFS export and get it in /home
    [ ! -e /home/hello.txt ] || fail "/home/hello.txt already exists"
    echo world > /mnt/nfs_home/hello.txt
    sync
    [ -e /home/hello.txt ] || fail "/home/hello.txt does not exist"
    [ "$(cat /home/hello.txt)" = "world" ] || fail "/home/hello.txt has wrong contents"

    # test that we can write to /home and get it in NFS
    rm /home/hello.txt
    sync
    [ ! -e /mnt/nfs_home/hello.txt ] || fail "/mnt/nfs_home/hello.txt exists after removal"

    # read-only, should fail
    ! touch /mnt/nfs_log/pwned 2>/dev/null || fail "writing to r/o /mnt/nfs_log succeeded"

    # our systemd jobs have a rather delicate dependency structure and run
    # early; ensure that we did not run into any cycles
    if [ -d /run/systemd/system ]; then
        if journalctl | grep 'Found ordering cycle'; then
            journalctl -p warning || true
            fail "found ordering cycle in units"
        fi
    fi
}

if [ -z "$ADT_REBOOT_MARK" ]; then
    pre_boot_setup
    /tmp/autopkgtest-reboot boot1
else
    post_boot_tests
fi