33 lines
664 B
Bash
33 lines
664 B
Bash
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#!/usr/bin/env bash
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set -o errexit
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set -o pipefail
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cmd="$@"
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function postgres_ready(){
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python << END
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import sys
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import os
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import psycopg2
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try:
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dbname = os.getenv('POSTGRES_DB')
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user = os.getenv('POSTGRES_USER')
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password = os.getenv('POSTGRES_PASSWORD')
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host = os.getenv('DB_HOST', 'postgres')
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port = os.getenv('POSTGRES_PORT', '5432')
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conn = psycopg2.connect(dbname=dbname, user=user, password=password, host=host, port=port)
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except psycopg2.OperationalError:
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sys.exit(-1)
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sys.exit(0)
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END
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}
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until postgres_ready; do
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>&2 echo "Postgres is unavailable - sleeping"
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sleep 1
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done
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>&2 echo "Postgres is up - continuing..."
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exec $cmd
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