From 66f818e54fab7bc1ddf874870274d729d5e29147 Mon Sep 17 00:00:00 2001
From: nobohan <juminet@gmail.com>
Date: Mon, 11 Jul 2022 16:32:41 +0200
Subject: [PATCH] #35 use gunicorn for running the backend in production

---
 docker-compose.override.yml      |  9 +++++++--
 patches/back/start_gunicorn.sh   | 30 ++++++++++++++++++++++++++++++
 patches/settings.ini             |  6 +++---
 patches/taxhub/gunicorn_start.sh | 20 ++++++++++++++++++++
 4 files changed, 60 insertions(+), 5 deletions(-)
 create mode 100755 patches/back/start_gunicorn.sh
 create mode 100755 patches/taxhub/gunicorn_start.sh

diff --git a/docker-compose.override.yml b/docker-compose.override.yml
index b8fca55..89c67a8 100644
--- a/docker-compose.override.yml
+++ b/docker-compose.override.yml
@@ -38,13 +38,16 @@ services:
     image: registry.gitlab.com/champs-libres/geonature-citizen/back
     volumes:
       - ./vendor/GeoNature-citizen/backend/gncitizen/:/home/appuser/citizen/backend/gncitizen/
+      - ./vendor/GeoNature-citizen/backend/var/log/:/home/appuser/citizen/backend/var/log/
       - ./patches/settings.ini:/home/appuser/citizen/config/settings.ini
+      - ./patches/settings.ini:/home/appuser/citizen/backend/config/settings.ini
       - ./patches/back/default_config.toml:/home/appuser/citizen/config/default_config.toml
+      - ./patches/back/start_gunicorn.sh:/home/appuser/citizen/backend/start_gunicorn.sh
       - ./patches/back/wsgi.py:/home/appuser/citizen/backend/wsgi.py
       - ./patches/back/server.py:/home/appuser/citizen/backend/server.py
     ports:
       - "5002:5002"
-    command:  python wsgi.py
+    command: bash start_gunicorn.sh
   taxhub:
     build:
       dockerfile: ./Dockerfile-taxhub
@@ -57,7 +60,9 @@ services:
       - ./patches/taxhub/server.py:/home/appuser/taxhub/server.py
       - ./patches/taxhub/install_db.sh:/home/appuser/taxhub/install_db.sh
       - ./patches/taxhub/settings.ini:/home/appuser/taxhub/settings.ini
-    command: python server.py
+      - ./patches/taxhub/gunicorn_start.sh:/home/appuser/taxhub/gunicorn_start.sh
+      - ./vendor/TaxHub/var/log/:/home/appuser/taxhub/var/log/
+    command: bash gunicorn_start.sh
 
   media:
     build:
diff --git a/patches/back/start_gunicorn.sh b/patches/back/start_gunicorn.sh
new file mode 100755
index 0000000..78c8d69
--- /dev/null
+++ b/patches/back/start_gunicorn.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+
+echo "------------------------------------------------"
+echo "GeoNature-citizen backend server is starting ..."
+echo "------------------------------------------------"
+
+
+FLASKDIR=$(readlink -e "${0%/*}")
+APP_DIR="$(dirname "$FLASKDIR")"
+
+. $APP_DIR/config/settings.ini
+
+echo "info: Starting $app_name"
+echo "info: FLASKDIR: $FLASKDIR"
+echo "info: APP_DIR: $APP_DIR"
+
+# Start your gunicorn
+LOG_DIR="$APP_DIR/var/log"
+echo "LOG_DIR: $LOG_DIR"
+if [[ ! -e $LOG_DIR ]]; then
+    mkdir -p $LOG_DIR
+elif [[ ! -d $LOG_DIR ]]; then
+    echo "LOG_DIR already exists but is not a directory" 1>&2
+fi
+export PYTHONPATH=`pwd`/${venv_dir}
+#echo $PYTHONPATH
+echo "info:  Starting gunicorn"
+echo "--"
+exec  gunicorn -w ${gun_num_workers:-2} --error-log $APP_DIR/var/log/gunicorn_gncitizen_errors.log --pid="${app_name:-"gncitizen"}.pid" -b ${gun_host:-"0.0.0.0"}:${gun_port:-5002} --timeout=${gun_timeout:-30} --reload -n "geonature-citizen" wsgi:app
diff --git a/patches/settings.ini b/patches/settings.ini
index e5410b0..c76c8d1 100644
--- a/patches/settings.ini
+++ b/patches/settings.ini
@@ -1,5 +1,5 @@
 # Langue du serveur
-# valeur possible : fr_FR.UTF-8, en_US.utf8 
+# valeur possible : fr_FR.UTF-8, en_US.utf8
 # locale -a pour voir la liste des locales disponible
 my_local=fr_FR.UTF-8
 
@@ -25,7 +25,7 @@ admin_password=MotDePasseAChanger
 ################################
 
 
-# Localisation du server PostgreSQL. 
+# Localisation du server PostgreSQL.
 # Les scripts d'installation automatique ne fonctionnent que si votre BDD est sur le même serveur (localhost)
 pg_host=db
 # Port sur lequel PostgreSQL ecoute
@@ -43,6 +43,6 @@ user_pg_pass=postgres
 
 app_name=gncitizen
 gun_num_workers=2
-gun_host=localhost
+gun_host=0.0.0.0
 gun_port=5002
 gun_timeout=30
diff --git a/patches/taxhub/gunicorn_start.sh b/patches/taxhub/gunicorn_start.sh
new file mode 100755
index 0000000..4332ade
--- /dev/null
+++ b/patches/taxhub/gunicorn_start.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+FLASKDIR=$(readlink -e "${0%/*}")
+APP_DIR="$(dirname "$FLASKDIR")"
+
+echo "Starting $app_name"
+echo "$FLASKDIR"
+echo "$APP_DIR"
+
+ . "$APP_DIR"/settings.ini
+
+# # activate the virtualenv
+# cd $FLASKDIR/$venv_dir
+# source bin/activate
+
+# export PYTHONPATH=$FLASKDIR:$PYTHONPATH
+
+
+# Start your unicorn
+exec gunicorn  server:app --access-logfile $APP_DIR/var/log/taxhub-access.log --pid="${app_name}.pid" --error-log $APP_DIR/var/log/taxhub-errors.log -w "${gun_num_workers}" -b "${gun_host}:${gun_port}"  -n "${app_name}"