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entrypoint
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entrypoint
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#!/usr/bin/env bash
# if any of the commands in your code fails for any reason, the entire script fails
set -o errexit
# fail exit if one of your pipe command fails
set -o pipefail
# exits if any of your variables is not set
set -o nounset
postgres_ready() {
python << END
import sys
import psycopg2
try:
psycopg2.connect(
dbname="${POSTGRES_DB}",
user="${POSTGRES_USER}",
password="${POSTGRES_PASSWORD}",
host="${POSTGRES_HOST}",
port="${POSTGRES_PORT}",
)
except psycopg2.OperationalError:
sys.exit(-1)
sys.exit(0)
END
}
until postgres_ready; do
>&2 echo 'Waiting for PostgreSQL to become available...'
sleep 1
done
>&2 echo 'PostgreSQL is available'
exec "$@"