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#!/usr/bin/env bats -*- bats -*-
#
# Tests for podman update
#
load helpers
LOOPDEVICE=
function teardown() {
if [[ -n "$LOOPDEVICE" ]]; then
losetup -d $LOOPDEVICE
LOOPDEVICE=
fi
basic_teardown
}
@test "podman update - test all options" {
local cgv=1
if is_cgroupsv2; then
cgv=2;
fi
# Need a block device for blkio-weight-device testing
local pass_loop_device=
if ! is_rootless; then
if is_cgroupsv2; then
lofile=${PODMAN_TMPDIR}/disk.img
fallocate -l 1k ${lofile}
LOOPDEVICE=$(losetup --show -f $lofile)
pass_loop_device="--device $LOOPDEVICE"
# Get maj:min (tr needed because losetup seems to use %2d)
lomajmin=$(losetup -l --noheadings --output MAJ:MIN $LOOPDEVICE | tr -d ' ')
fi
fi
# Shortcuts to make the table narrower
local -a gig=(0 1073741824 2147483648 3221225472)
local devicemax="1:5 rbps=10485760 wbps=31457280 riops=2000 wiops=4000"
local mm=memory/memory
# Format:
# --<option> = <value> | rootless? | check: cgroups v1 | check: cgroups v2
#
# Requires very wide window to read. Sorry.
#
# FIXMEs:
# cpu-rt-period (cgv1 only, on cpu/cpu.rt_period_us) works on RHEL8 but not on Ubuntu
# cpu-rt-runtime (cgv1 only, on cpu/cpu.rt_runtime_us) fails: error setting cgroup config for procHooks ...
tests="
cpu-shares = 512 | - | cpu/cpu.shares = 512 | cpu.weight = 20
cpus = 5 | - | cpu/cpu.cfs_quota_us = 500000 | cpu.max = 500000 100000
cpuset-cpus = 0 | - | cpuset/cpuset.cpus = 0 | cpuset.cpus = 0
cpuset-mems = 0 | - | cpuset/cpuset.mems = 0 | cpuset.mems = 0
memory = 1G | 2 | $mm.limit_in_bytes = ${gig[1]} | memory.max = ${gig[1]}
memory-swap = 3G | 2 | $mm.memsw.limit_in_bytes = ${gig[3]} | memory.swap.max = ${gig[2]}
memory-reservation = 400M | 2 | $mm.soft_limit_in_bytes = 419430400 | memory.low = 419430400
blkio-weight = 321 | - | - | io.bfq.weight = default 321 $lomajmin 98
blkio-weight-device = $LOOPDEVICE:98 | - | - | io.bfq.weight = default 321 $lomajmin 98
device-read-bps = /dev/zero:10mb | - | - | io.max = $devicemax
device-read-iops = /dev/zero:2000 | - | - | io.max = $devicemax
device-write-bps = /dev/zero:30mb | - | - | io.max = $devicemax
device-write-iops = /dev/zero:4000 | - | - | io.max = $devicemax
"
# Run a container
run_podman run ${pass_loop_device} -d $IMAGE sleep infinity
cid="$output"
# Pass 1: read the table above, gather up the options applicable
# to this test environment (root/rootless, cgroups v1/v2)
local -a opts
local -A check
while read opt works_rootless cgv1 cgv2; do
if is_rootless; then
local skipping="skipping --$opt : does not work rootless"
if [[ $works_rootless = '-' ]]; then
echo "[ $skipping ]"
continue
fi
if [[ ! $works_rootless =~ $cgv ]]; then
echo "[ $skipping on cgroups v$cgv ]"
continue
fi
fi
tuple=$cgv1
if is_cgroupsv2; then
tuple=$cgv2
fi
if [[ $tuple = '-' ]]; then
echo "[ skipping --$opt : N/A on cgroups v$cgv ]"
continue
fi
# OK: setting is applicable. Preserve it. (First removing whitespace)
opt=${opt// /}
opts+=("--$opt")
check["--$opt"]=$tuple
done < <(parse_table "$tests")
# Now do the update in one fell swoop
run_podman update "${opts[@]}" $cid
# ...and check one by one
for opt in "${opts[@]}"; do
read path op expect <<<"${check[$opt]}"
run_podman exec $cid cat /sys/fs/cgroup/$path
# Magic echo of unquoted-output converts newlines to spaces;
# important for otherwise multiline blkio file.
updated="$(echo $output)"
assert "$updated" $op "$expect" "$opt ($path)"
done
# Clean up
run_podman rm -f -t0 $cid
if [[ -n "$LOOPDEVICE" ]]; then
losetup -d $LOOPDEVICE
LOOPDEVICE=
fi
}
# vim: filetype=sh
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