Release v1.0.6

.env

@@ -1,7 +1,7 @@
 DEBUG=True
 
 FLASK_APP=run.py
-FLASK_ENV=development
+FLASK_DEBUG=1
 
 ASSETS_ROOT=/static/assets
 

CHANGELOG.md

@@ -1,7 +1,14 @@
 # Change Log
 
+## [1.0.6] 2023-10-08
+### Changes
+
+- Update Dependencies
+- Silent fallback to SQLite
+- CI/CD for Render
+
 ## [1.0.5] 2022-06-11
-### Improvements
+### Changes
 
 - Built with [Light Bootstrap Generator](https://appseed.us/generator/light-bootstrap-dashboard/)
  - Timestamp: `2022-06-11 12:19`

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9
+FROM python:3.10
 
 # set environment variables
 ENV PYTHONDONTWRITEBYTECODE 1

apps/__init__.py

@@ -3,6 +3,8 @@
 Copyright (c) 2019 - present AppSeed.us
 """
 
+import os
+
 from flask import Flask
 from flask_login import LoginManager
 from flask_sqlalchemy import SQLAlchemy
@@ -28,7 +30,18 @@ def configure_database(app):
 
     @app.before_first_request
     def initialize_database():
-        db.create_all()
+        try:
+            db.create_all()
+        except Exception as e:
+
+            print('> Error: DBMS Exception: ' + str(e) )
+
+            # fallback to SQLite
+            basedir = os.path.abspath(os.path.dirname(__file__))
+            app.config['SQLALCHEMY_DATABASE_URI'] = SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'db.sqlite3')
+
+            print('> Fallback to SQLite ')
+            db.create_all()
 
     @app.teardown_request
     def shutdown_session(exception=None):

apps/config.py

@@ -3,22 +3,57 @@
 Copyright (c) 2019 - present AppSeed.us
 """
 
-import os
+import os, random, string
 
 class Config(object):
 
     basedir = os.path.abspath(os.path.dirname(__file__))
 
+    # Assets Management
+    ASSETS_ROOT = os.getenv('ASSETS_ROOT', '/static/assets')
+
     # Set up the App SECRET_KEY
-    # SECRET_KEY = config('SECRET_KEY'  , default='S#perS3crEt_007')
-    SECRET_KEY = os.getenv('SECRET_KEY', 'S#perS3crEt_007')
+    SECRET_KEY  = os.getenv('SECRET_KEY', None)
+    if not SECRET_KEY:
+        SECRET_KEY = ''.join(random.choice( string.ascii_lowercase  ) for i in range( 32 ))    
 
-    # This will create a file in <app> FOLDER
-    SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'db.sqlite3')
-    SQLALCHEMY_TRACK_MODIFICATIONS = False 
+    SQLALCHEMY_TRACK_MODIFICATIONS = False
 
-    # Assets Management
-    ASSETS_ROOT = os.getenv('ASSETS_ROOT', '/static/assets')    
+    DB_ENGINE   = os.getenv('DB_ENGINE'   , None)
+    DB_USERNAME = os.getenv('DB_USERNAME' , None)
+    DB_PASS     = os.getenv('DB_PASS'     , None)
+    DB_HOST     = os.getenv('DB_HOST'     , None)
+    DB_PORT     = os.getenv('DB_PORT'     , None)
+    DB_NAME     = os.getenv('DB_NAME'     , None)
+
+    USE_SQLITE  = True 
+
+    # try to set up a Relational DBMS
+    if DB_ENGINE and DB_NAME and DB_USERNAME:
+
+        try:
+
+            # Relational DBMS: PSQL, MySql
+            SQLALCHEMY_DATABASE_URI = '{}://{}:{}@{}:{}/{}'.format(
+                DB_ENGINE,
+                DB_USERNAME,
+                DB_PASS,
+                DB_HOST,
+                DB_PORT,
+                DB_NAME
+            ) 
+
+            USE_SQLITE  = False
+
+        except Exception as e:
+
+            print('> Error: DBMS Exception: ' + str(e) )
+            print('> Fallback to SQLite ')    
+
+    if USE_SQLITE:
+
+        # This will create a file in <app> FOLDER
+        SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'db.sqlite3') 
 
 class ProductionConfig(Config):
     DEBUG = False
@@ -28,15 +63,6 @@ class ProductionConfig(Config):
     REMEMBER_COOKIE_HTTPONLY = True
     REMEMBER_COOKIE_DURATION = 3600
 
-    # PostgreSQL database
-    SQLALCHEMY_DATABASE_URI = '{}://{}:{}@{}:{}/{}'.format(
-        os.getenv('DB_ENGINE'   , 'mysql'),
-        os.getenv('DB_USERNAME' , 'appseed_db_usr'),
-        os.getenv('DB_PASS'     , 'pass'),
-        os.getenv('DB_HOST'     , 'localhost'),
-        os.getenv('DB_PORT'     , 3306),
-        os.getenv('DB_NAME'     , 'appseed_db')
-    ) 
 
 class DebugConfig(Config):
     DEBUG = True

build.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# exit on error
+set -o errexit
+
+python -m pip install --upgrade pip
+
+pip install -r requirements.txt

env.sample

@@ -3,13 +3,13 @@ DEBUG=True
 
 # Flask ENV
 FLASK_APP=run.py
-FLASK_ENV=development
+FLASK_DEBUG=1
 SECRET_KEY=YOUR_SUPER_KEY
 
 # If DEBUG=False (production mode)
-DB_ENGINE=mysql
-DB_NAME=appseed_db
-DB_HOST=localhost
-DB_PORT=3306
-DB_USERNAME=appseed_db_usr
-DB_PASS=<STRONG_PASS>
+# DB_ENGINE=mysql
+# DB_NAME=appseed_db
+# DB_HOST=localhost
+# DB_PORT=3306
+# DB_USERNAME=appseed_db_usr
+# DB_PASS=<STRONG_PASS>

render.yaml

@@ -0,0 +1,13 @@
+services:
+  - type: web
+    name: flask-light-bootstrap
+    plan: starter
+    env: python
+    region: frankfurt  # region should be same as your database region.
+    buildCommand: "./build.sh"
+    startCommand: "gunicorn run:app"
+    envVars:
+      - key: SECRET_KEY
+        generateValue: true
+      - key: WEB_CONCURRENCY
+        value: 4

requirements.txt

@@ -1,16 +1,19 @@
-flask==2.0.2
-Werkzeug==2.0.3
-jinja2==3.0.2
-flask_login==0.5.0
-flask_migrate==3.1.0
-WTForms==3.0.0
-flask_wtf==1.0.0
-flask_sqlalchemy==2.5.1
-sqlalchemy==1.4.29
-email_validator==1.1.3
-gunicorn==20.1.0
-flask-restx==0.5.1
+flask==2.2.5
+Werkzeug==2.3.7
+jinja2==3.1.2
+flask-login==0.6.2
+flask_migrate==4.0.4
+WTForms==3.0.1
+flask_wtf==1.2.1
+flask-sqlalchemy==3.0.5
+sqlalchemy==2.0.21
+email_validator==2.0.0
+flask-restx==1.1.0
+
 python-dotenv==0.19.2
+
+gunicorn==20.1.0
 Flask-Minify==0.37
 
 # flask_mysqldb
+# psycopg2-binary

run.py

@@ -33,7 +33,6 @@
 
 if DEBUG:
     app.logger.info('DEBUG            = ' + str(DEBUG)             )
-    app.logger.info('FLASK_ENV        = ' + os.getenv('FLASK_ENV') )
     app.logger.info('Page Compression = ' + 'FALSE' if DEBUG else 'TRUE' )
     app.logger.info('DBMS             = ' + app_config.SQLALCHEMY_DATABASE_URI)
     app.logger.info('ASSETS_ROOT      = ' + app_config.ASSETS_ROOT )