#!/usr/bin/env bash function error_handler() { >&2 echo "Exited with BAD EXIT CODE '${2}' in ${0} script at line: ${1}." exit "$2" } trap 'error_handler ${LINENO} $?' ERR set -o errtrace -o errexit -o nounset -o pipefail # run migrations export FLASK_APP=/app/src/spiffworkflow_backend if [[ "${SPIFFWORKFLOW_BACKEND_WAIT_FOR_DB_TO_BE_READY:-}" == "true" ]]; then echo 'Waiting for db to be ready...' poetry run python ./bin/wait_for_db_to_be_ready.py fi if [[ "${SPIFFWORKFLOW_BACKEND_DOWNGRADE_DB:-}" == "true" ]]; then echo 'Downgrading database...' poetry run flask db downgrade fi if [[ "${SPIFFWORKFLOW_BACKEND_UPGRADE_DB:-}" == "true" ]]; then echo 'Upgrading database...' poetry run flask db upgrade fi if [[ -z "${GUNICORN_LOG_LEVEL:-}" ]]; then GUNICORN_LOG_LEVEL=debug fi if [[ -z "${GUNICORN_TIMEOUT_SECONDS:-}" ]]; then GUNICORN_TIMEOUT_SECONDS=90 fi port="${SPIFFWORKFLOW_BACKEND_PORT:-}" if [[ -z "$port" ]]; then port=7000 fi additional_args="" app_root="${SPIFFWORKFLOW_BACKEND_APPLICATION_ROOT:-}" if [[ -n "$app_root" ]] && [[ "${app_root}" != "/" ]]; then additional_args="${additional_args} -e SCRIPT_NAME=${app_root}" fi # HACK: if loading fixtures for acceptance tests when we do not need multiple workers # it causes issues with attempting to add duplicate data to the db worker_count=4 if [[ "${SPIFFWORKFLOW_BACKEND_LOAD_FIXTURE_DATA:-}" == "true" ]]; then worker_count=1 fi if [[ "${SPIFFWORKFLOW_BACKEND_RUN_DATA_SETUP:-}" != "false" ]]; then SPIFFWORKFLOW_BACKEND_FAIL_ON_INVALID_PROCESS_MODELS=false poetry run python bin/save_all_bpmn.py fi if [[ -n "${SPIFFWORKFLOW_BACKEND_GIT_SSH_PRIVATE_KEY:-}" ]]; then if [[ -z "${SPIFFWORKFLOW_BACKEND_GIT_SSH_PRIVATE_KEY_PATH:-}" ]]; then export SPIFFWORKFLOW_BACKEND_GIT_SSH_PRIVATE_KEY_PATH=$(mktemp /tmp/ssh_private_key.XXXXXX) fi chmod 600 "${SPIFFWORKFLOW_BACKEND_GIT_SSH_PRIVATE_KEY_PATH}" echo "${SPIFFWORKFLOW_BACKEND_GIT_SSH_PRIVATE_KEY}" >"${SPIFFWORKFLOW_BACKEND_GIT_SSH_PRIVATE_KEY_PATH}" fi # Assure that the the Process Models Directory is initialized as a git repo git init "${SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR}" git config --global --add safe.directory "${SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR}" if [[ -z "${SPIFFWORKFLOW_BACKEND_THREADS_PER_WORKER:-}" ]]; then # default to 3 * 2 = 6 threads per worker # you may want to configure threads_to_use_per_core based on whether your workload is more cpu intensive or more I/O intensive: # cpu heavy, make it smaller # I/O heavy, make it larger threads_to_use_per_core=3 # https://stackoverflow.com/a/55423170/6090676 # if we had access to python (i'm not sure i want to run another python script here), # we could do something like this (on linux) to get the number of cores available to this process and a better estimate of a # reasonable num_cores_multiple_for_threads # if hasattr(os, 'sched_getaffinity') # number_of_available_cores = os.sched_getaffinity(0) # BUT the python solution isn't even as portable as this one, which is mostly posix compliant and works on linux/mac/freebsd. num_cores_multiple_for_threads=$(getconf _NPROCESSORS_ONLN 2>/dev/null || getconf NPROCESSORS_ONLN 2>/dev/null || echo 1) SPIFFWORKFLOW_BACKEND_THREADS_PER_WORKER=$((threads_to_use_per_core * num_cores_multiple_for_threads)) export SPIFFWORKFLOW_BACKEND_THREADS_PER_WORKER fi # --worker-class is not strictly necessary, since setting threads will automatically set the worker class to gthread, but meh export IS_GUNICORN="true" # THIS MUST BE THE LAST COMMAND! exec poetry run gunicorn ${additional_args} \ --bind "0.0.0.0:$port" \ --preload \ --worker-class "gthread" \ --workers="$worker_count" \ --threads "$SPIFFWORKFLOW_BACKEND_THREADS_PER_WORKER" \ --limit-request-line 8192 \ --timeout "$GUNICORN_TIMEOUT_SECONDS" \ --capture-output \ --access-logfile '-' \ --log-level "$GUNICORN_LOG_LEVEL" wsgi:app