postgresql/root/usr/libexec/check-container
2018-11-06 17:59:02 +00:00

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#! /bin/sh
# Try whether the PostgreSQL in container accepts connections.
#
# With --live, be tolerant to starting PG server. If the /bin/postgres binary
# has not been executed yet (the shell script is initializing the container),
# wait for it (this script might run forever, we expect that the timeout is
# maintained externally).
test -z "$ENABLED_COLLECTIONS" || . scl_source enable $ENABLED_COLLECTIONS
check=ready
case $1 in
--live) check=live ;;
esac
while true; do
# Wait until the /bin/postgres is executed.
case $(readlink -f /proc/1/exe) in
*bash) sleep 0.2; continue ;;
*) break ;;
esac
done
# Timeout is infinite (openshift template has the timeout pre-set)
pg_isready -q \
-h 127.0.0.1 \
${POSTGRESQL_USER+-U "$POSTGRESQL_USER"} \
${POSTGRESQL_DATABASE+-d "$POSTGRESQL_DATABASE"} \
--timeout 0
rc=$?
# we are ready only if the db accepts connections
test $rc -eq 0 && exit 0
# container is live also during pg cluster start-up
test $rc -eq 1 && test $check = live && exit 0
exit 1