openstack/tripleo-ansible
Code Issues Proposed changes

Using podman/docker ps to look for running sidecars

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We've been running into numerous issues with searching on patterns in
the command so using the container CLI to match seems better.

Change-Id: I13633ab4d5ebfc7f52b7215523c310fe72a5487e
Closes-Bug: #1869384
This commit is contained in:
Brent Eagles 2020-03-27 14:39:12 -02:30
parent 92b0f84876
commit b187fb5b62
1 changed files with 22 additions and 5 deletions
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27
tripleo_ansible/roles/tripleo_systemd_wrapper/templates/service_sync.j2
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@ -6,7 +6,8 @@ set -x
function start_service {
local NETNS=$1
shift
local NAME="{{ tripleo_systemd_wrapper_service_name }}-${NETNS}"
local NAME=$1
shift
local CLI='{{ tripleo_systemd_wrapper_container_cli }}'
local CMD="{{ tripleo_systemd_wrapper_service_dir }}/{{ tripleo_systemd_wrapper_service_name }}/command"
local CONTAINER_CMD="ip netns exec ${NETNS} ${CMD}"
@ -39,10 +40,26 @@ flock "$lock_fd"
IFS=$'\n'
for LINE in $(cat {{ tripleo_systemd_wrapper_service_dir }}/{{ tripleo_systemd_wrapper_service_name }}/processes); do
NETNS=$(echo $LINE | awk '{ print $1 }')
IFS=$' ' ARGS=$(echo $LINE | sed -e "s|$NETNS ||" | xargs)
# TODO(emilien) investigate if we should rather run docker/podman ps instead of ps on the host
if ! ps -e -o pid,command | grep "$(echo $NETNS | sed 's|^[^-]*\-||')" | egrep -v "grep | netns exec" &> /dev/null; then
start_service $NETNS $ARGS
CONTAINER_NAME="{{ tripleo_systemd_wrapper_service_name }}-${NETNS}"
CLI='{{ tripleo_systemd_wrapper_container_cli }}'
# We do a filter to create a short list and then have to exact name match the results. The reason is that
# containers that partially match the filter will show up in the list. This is a little unlikely but there
# is nothing to prevent that.
start_container=yes
container_list=`$CLI ps --format={% raw %}"{{.Names}}"{% endraw %} --filter="name=$CONTAINER_NAME"`
for name in ${container_list};
do
if [ "x$name" = "x$CONTAINER_NAME"];
then
start_container=no
break
fi
done
if [ "$start_container" = "yes" ];
then
IFS=$' ' ARGS=$(echo $LINE | sed -e "s|$NETNS ||" | xargs)
start_service $NETNS $CONTAINER_NAME $ARGS
fi
done
# truncate the file so we don't start them again