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Print last line of django db connection error while waiting for db to start 

Fixes #562
This commit is contained in:
Mike Kazantsev 2021-09-02 19:35:39 +05:00 committed by fraggod@malediction
parent 9e063a6e6f
commit fc4b78f74a
1 changed files with 13 additions and 1 deletions
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14
docker/docker-entrypoint.sh
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@ -15,7 +15,19 @@ source /opt/netbox/venv/bin/activate
DB_WAIT_TIMEOUT=${DB_WAIT_TIMEOUT-3}
MAX_DB_WAIT_TIME=${MAX_DB_WAIT_TIME-30}
CUR_DB_WAIT_TIME=0
while ! ./manage.py showmigrations >/dev/null 2>&1 && [ "${CUR_DB_WAIT_TIME}" -lt "${MAX_DB_WAIT_TIME}" ]; do
while [ "${CUR_DB_WAIT_TIME}" -lt "${MAX_DB_WAIT_TIME}" ]; do
# Read and truncate connection error tracebacks to last line by default
exec {psfd}< <(./manage.py showmigrations 2>&1)
read -rd '' DB_ERR <&$psfd || :
exec {psfd}<&-
wait $! && break
if [ -n "$DB_WAIT_DEBUG" ]; then
echo "$DB_ERR"
else
readarray -tn 0 DB_ERR_LINES <<<"$DB_ERR"
echo "${DB_ERR_LINES[@]: -1}"
echo "[ Use DB_WAIT_DEBUG=1 in netbox.env to print full traceback for errors here ]"
fi
echo "⏳ Waiting on DB... (${CUR_DB_WAIT_TIME}s / ${MAX_DB_WAIT_TIME}s)"
sleep "${DB_WAIT_TIMEOUT}"
CUR_DB_WAIT_TIME=$((CUR_DB_WAIT_TIME + DB_WAIT_TIMEOUT))