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test: Extend context system to run commands in namespace for pasta tests

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Extend the context system to allow commands to be run in a namespace
created with unshare, and use it for the namespace used in the pasta tests.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2022-09-12 20:56:21 +10:00 • committed by Stefano Brivio
parent a8c32c85d5
commit a8a437abd6
3 changed files with 29 additions and 13 deletions
test/lib
setup

17
test/lib/setup
View file

@ -17,6 +17,7 @@ INITRAMFS="${BASEPATH}/mbuto.img"
VCPUS="$( [ $(nproc) -ge 8 ] && echo 6 || echo $(( $(nproc) / 2 + 1 )) )"
__mem_kib="$(sed -n 's/MemTotal:[ ]*\([0-9]*\) kB/\1/p' /proc/meminfo)"
VMEM="$((${__mem_kib} / 1024 / 4))"
NSHOLDER="${BASEPATH}/nsholder"
# setup_build() - Set up pane layout for build tests
setup_build() {
@ -72,17 +73,14 @@ setup_passt() {
setup_pasta() {
context_setup_host host
context_setup_host passt
context_setup_host unshare
layout_pasta
pane_run NS 'echo $$'
pane_wait NS
__tty_pid="$(pane_parse NS)"
context_run_bg unshare "unshare -rUnpf ${NSHOLDER} ns.hold hold"
__target_pid=$(${NSHOLDER} ns.hold pid)
pane_run NS "unshare -rUnpf /bin/sh"
pane_status NS
__target_pid=$(pstree -p ${__tty_pid} | sed -n 's/.*(\([0-9].*\))$/\1/p')
context_setup_nsenter ns -U -n -p --preserve-credentials -t ${__target_pid}
# Ports:
#
@ -318,11 +316,12 @@ teardown_passt() {
# teardown_passt() - Exit namespace, kill pasta process
teardown_pasta() {
tmux send-keys -t ${PANE_NS} "C-d"
pane_wait NS
${NSHOLDER} ns.hold stop
context_wait unshare
teardown_context_watch ${PANE_HOST} host
teardown_context_watch ${PANE_PASST} passt
teardown_context_watch ${PANE_NS} unshare ns
}
# teardown_passt_in_ns() - Exit namespace, kill qemu and pasta, remove pid file