Minimal bash script to wait for postgres services in running in docker

postgres_dbs_accepting_connections.sh

#! /bin/bash

is_ready_string="accepting connections"

postgres_ready=0
timescale_ready=0
all_postgres_are_ready=0

echo $postgres_response
echo $timescale_response

while [ $all_postgres_are_ready -le 0 ]
do
    sleep 1

    postgres_response=$(docker exec -ti postgres pg_isready)
    timescale_response=$(docker exec -ti timescale pg_isready -U postgres)

    if [[ "$postgres_response" == *"$is_ready_string"* ]]; then
        echo "Local postgres is ready"
        postgres_ready=1
    fi

    if [[ "$timescale_response" == *"$is_ready_string"* ]]; then
        echo "Local timescale is ready"
        timescale_ready=1
    fi

    if [ $postgres_ready -ge 1 ] && [ $timescale_ready -ge 1 ]; then
        echo "All local postgres instances for udx-services are ready!"
        all_postgres_are_ready=1
    fi
done

exit 0