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46 lines
847 B
Bash
46 lines
847 B
Bash
#!/bin/bash
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# if any of the commands in your code fails for any reason, the entire script fails
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set -o errexit
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# fail exit if one of your pipe command fails
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set -o pipefail
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# exits if any of your variables is not set
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set -o nounset
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postgres_ready() {
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python << END
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import sys
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import psycopg2
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import urllib.parse as urlparse
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import os
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url = urlparse.urlparse(os.environ['DATABASE_URL'])
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dbname = url.path[1:]
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user = url.username
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password = url.password
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host = url.hostname
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port = url.port
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try:
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psycopg2.connect(
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dbname=dbname,
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user=user,
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password=password,
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host=host,
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port=port
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)
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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 'Waiting for PostgreSQL to become available...'
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sleep 1
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done
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>&2 echo 'PostgreSQL is available'
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exec "$@"
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