#!/bin/sh
# PCP QA Test No. 761
# Exercise the PMCD privileged co-process (root) PMDA
# Install, Remove and handling of different container
# engines container.* metrics.
#
# Copyright (c) 2014-2015 Red Hat.
#

seq=`basename $0`
echo "QA output created by $seq"

# get standard environment, filters and checks
. ./common.product
. ./common.filter
. ./common.check

_get_libpcp_config
$unix_domain_sockets || _notrun "No unix domain socket support available"

root=$tmp.root
status=1	# failure is the default!
$sudo rm -rf $tmp.* $seq.full

root_remove()
{
    echo
    echo "=== remove root agent ==="
    cd $PCP_PMDAS_DIR/root
    sudo ./Remove >$tmp.out 2>&1
    _filter_pmda_remove <$tmp.out
}

root_install()
{
    # start from known starting points
    cd $PCP_PMDAS_DIR/root
    $sudo ./Remove >/dev/null 2>&1

    echo
    echo "=== $iam agent installation ==="
    $sudo ./Install </dev/null >$tmp.out 2>&1
    # Check root metrics have appeared ... X metrics and Y values
    _filter_pmda_install <$tmp.out \
    | sed \
        -e '/^Waiting for pmcd/s/\.\.\.[. ]*$/DOTS/' \
    | $PCP_AWK_PROG '
/Check root metrics have appeared/ { if ($7 >= 5) $7 = "X"
                                     if ($10 >= 5) $10 = "Y"
                                   }
                                   { print }'
}

root_cleanup()
{
    cd $here
    [ -d $root ] && sudo rm -fr $root
    [ -f $tmp.conf.backup ] && sudo cp $tmp.conf.backup $PCP_DIR/etc/pcp.conf
    _cleanup_pmda root
}

# do metrics one at a time, map all internal instance ids to N and sort
# instance lines
#
_check()
{
    pminfo containers \
    | while read metric
    do
	pminfo -f $metric >$tmp.tmp
	grep -v ' inst \[' $tmp.tmp
	sed -n -e '/inst \[/s/\[[0-9][0-9]*/[N/p' $tmp.tmp \
	| LC_COLLATE=POSIX sort
    done
}

_prepare_pmda root containers
trap "root_cleanup; exit \$status" 0 1 2 3 15

# backup main PCP config
cp $PCP_DIR/etc/pcp.conf $tmp.conf
cp $PCP_DIR/etc/pcp.conf $tmp.conf.backup

# simple testing script for LXC containers
cat >$tmp.test-lxc-info.sh <<EOF
#!/bin/bash
name="\$2"
test -d "\$PCP_LXC_DIR/\$name" || exit 0
echo "Name:           \$name"
echo "State:          RUNNING"
echo "PID:            17297"
echo "CPU use:        1.13 seconds"
EOF
chmod 755 $tmp.test-lxc-info.sh
export PCP_LXC_DIR=$root/var/lib/lxc

# real QA test starts here
echo >> $tmp.conf
echo "# from QA $seq ..." >> $tmp.conf
echo PCP_LXC_DIR=$root/var/lib/lxc >> $tmp.conf
echo PCP_LXC_INFO=$tmp.test-lxc-info.sh >> $tmp.conf
echo PCP_DOCKER_DIR=$root/var/lib/docker >> $tmp.conf
$sudo cp $tmp.conf $PCP_DIR/etc/pcp.conf
root_install

echo "=== Checking empty containers configuration, no values"
pmprobe -v containers
echo "== done" && echo

tarballs=`echo $here/linux/containers-*.tgz | LC_COLLATE=POSIX sort`
for tgz in $tarballs
do
    $sudo rm -fr $root
    mkdir $root || _fail "root in use when processing $tgz"
    cd $root
    $sudo tar xzf $tgz
    base=`basename $tgz`

    echo "== Checking values for active containers"
    _check
    echo && echo "== done" && echo
    cd $here
done

root_remove
# success, all done
status=0
exit
