pgadmin4/pkg/docker/entrypoint.sh

#!/bin/sh

if [ ! -f /var/lib/pgadmin/pgadmin4.db ]; then
    if [ -z "${PGADMIN_DEFAULT_EMAIL}" -o -z "${PGADMIN_DEFAULT_PASSWORD}" ]; then
        echo 'You need to specify PGADMIN_DEFAULT_EMAIL and PGADMIN_DEFAULT_PASSWORD environment variables'
        exit 1
    fi

    # Set the default username and password in a
    # backwards compatible way
    export PGADMIN_SETUP_EMAIL=${PGADMIN_DEFAULT_EMAIL}
    export PGADMIN_SETUP_PASSWORD=${PGADMIN_DEFAULT_PASSWORD}

    # Initialize DB before starting Gunicorn
    # Importing pgadmin4 (from this script) is enough
    python run_pgadmin.py

    # Pre-load any required servers
    if [ -f /pgadmin4/servers.json ]; then
        /usr/local/bin/python /pgadmin4/setup.py --load-servers /pgadmin4/servers.json --user ${PGADMIN_DEFAULT_EMAIL}
    fi
fi

# Start Postfix to handle password resets etc.
/usr/sbin/postfix start

# Get the session timeout from the pgAdmin config. We'll use this (in seconds)
# to define the Gunicorn worker timeout
TIMEOUT=$(cd /pgadmin4 && python -c 'import config; print(config.SESSION_EXPIRATION_TIME * 60 * 60 * 24)')

# NOTE: currently pgadmin can run only with 1 worker due to sessions implementation
# Using --threads to have multi-threaded single-process worker

if [ ! -z ${PGADMIN_ENABLE_TLS} ]; then
    exec gunicorn --timeout ${TIMEOUT} --bind ${PGADMIN_LISTEN_ADDRESS:-[::]}:${PGADMIN_LISTEN_PORT:-443} -w 1 --threads ${GUNICORN_THREADS:-25} --access-logfile - --keyfile /certs/server.key --certfile /certs/server.cert run_pgadmin:app
else
    exec gunicorn --timeout ${TIMEOUT} --bind ${PGADMIN_LISTEN_ADDRESS:-[::]}:${PGADMIN_LISTEN_PORT:-80} -w 1 --threads ${GUNICORN_THREADS:-25} --access-logfile - run_pgadmin:app
fi