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