entrypoint

#!/bin/bash

set -o errexit
set -o pipefail

# No postgres user, so just use the default.
if [ -z "${POSTGRES_USER}" ]; then
    base_postgres_image_default_user='postgres'
    export POSTGRES_USER="${base_postgres_image_default_user}"
fi

# This call does not seem to be effective. Hence the hardcoded version of this in the env variables.
export DATABASE_URL="postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}:${POSTGRES_PORT}/${POSTGRES_DB}"

# Loop until postgres is ready
postgres_ready() {
python3 << 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 'entrypoint: Waiting for PostgreSQL to become available...'
  sleep 1
done
>&2 echo 'entrypoint: PostgreSQL is available'

echo "$MIGRATE"

if [[ ($MIGRATE) && ("$MIGRATE" = "True") ]]; then
  python3 manage.py makemigrations --no-input
  python3 manage.py migrate --no-input --fake-initial
  echo "entrypoint: Migrations finished"
  python3 manage.py collectstatic --noinput
  echo "entrypoint: Static files collected"
fi

if [[ ($LOAD) && ("$LOAD" = "True") ]]; then
  echo "entrypoint: Deleting all Yasna data"
  python3 manage.py delete_all_yasna_data
  echo "entrypoint: Loading Yasna Object data from versioned fixtures"
  python3 manage.py loaddata ./yasna/data/yasna_objects_fixtures.json
  echo "entrypoint: Loading YasnaObjectImage avro from versioned fixtures"
  python3 manage.py load_avro_frame_data --framef=./yasna/data/uniqueframes_2decimalplaces.avro --normf=./yasna/data/normalisedwithframes_2decimalplaces.avro
  echo "entrypoint: Loading eaf data from versioned fixtures"
  python3 manage.py loaddata ./yasna/data/eaf_fixtures.json
fi

nginx


# Switching the WSGI host to Waitress, which seems faster, and more robust than Gunicorn for long running jobs when
# sitting behind Nginx.
if [[ (-z "$LOADER") || ("$LOADER" = "False")]]; then
  if [[ ($WAITRESS) && ("$WAITRESS" = "True") ]]; then
    echo "Bringing up waitress on port 5000 as wsgi host"
    waitress-serve --url-scheme=https  --trusted-proxy='*' --trusted-proxy-headers='x-forwarded-for x-forwarded-proto x-forwarded-port' --threads=16 --listen=127.0.0.1:5000 yasna_backend.wsgi:application
#    python3 /app/manage.py waitress --port=5000 --threads=16
  else
    python3 /app/manage.py runserver 5000
  fi
fi