本应用案例：
https://dormousehole.readthedocs.io/en/latest/tutorial/index.html
https://dormousehole.readthedocs.io/en/latest/tutorial/index.html

上下文：https://flask-sqlalchemy.palletsprojects.com/en/2.x/contexts/
https://flask-sqlalchemy.palletsprojects.com/en/2.x/contexts/
https://flask-sqlalchemy.palletsprojects.com/en/2.x/contexts/

应用上下文：
https://flask.palletsprojects.com/en/1.0.x/appcontext/#manually-push-a-context
https://flask.palletsprojects.com/en/1.0.x/appcontext/#manually-push-a-context
https://flask.palletsprojects.com/en/1.0.x/appcontext/#manually-push-a-context

请求上下文：
https://flask.palletsprojects.com/en/1.0.x/reqcontext/

工厂模式：
https://flask.palletsprojects.com/en/1.0.x/patterns/appfactories/

蓝图：https://flask.palletsprojects.com/en/1.0.x/blueprints/

CLI command：https://flask.palletsprojects.com/en/1.0.x/cli/

图标库： https://material.iconhelper.cn/?p=2

logging: https://www.cnblogs.com/fengff/p/9512045.html

日志实战： https://www.cnblogs.com/alicelai1319/p/10289798.html


flask 处理耗时的任务: https://www.sohu.com/a/341662446_752099

分布式追踪： https://github.com/opentracing-contrib/python-flask
#            https://scoutapm.com/blog/tutorial-tracing-python-flask-requests-with-opentracing


k8s获取：
/opt/microservices # cat /etc/issue 
Welcome to Alpine Linux 3.11
Kernel \r on an \m (\l)

root@flask-admin-6494b6bfdf-kmpdk:/opt/microservices# cat /etc/issue
Debian GNU/Linux 10 \n \l

root@flask-admin-6494b6bfdf-kmpdk:/opt/microservices# cat /etc/debian_version 
10.4

root@flask-admin-6494b6bfdf-kmpdk:/opt/microservices# cat /etc/os-release 
PRETTY_NAME="Debian GNU/Linux 10 (buster)"
NAME="Debian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"



额外的提示
你需要在db.create_all发生之前导入models本身：

with app.test_request_context():
    from application.models import Post
    db.create_all()

那么保持你的SQLAlchemy对象实例放在不同的文件里，以避免不会循环导入，是一个很好的主意：

# application/database.py
from flask.ext.sqlalchemy import SQLAlchemy
db = SQLAlchemy()

# application factory
from application.database import db
def create_app():
    ...
    db.init_app(app)
    ...

# application/models.py
from application.database import db
class Post(db.Model):
    ...

工厂模式：
而是在model.py（或等效文件）中：

db = SQLAlchemy()
并在您的application.py（或等效文件）中：

def create_app(config_filename):
    app = Flask(__name__)
    app.config.from_pyfile(config_filename)

    from yourapplication.model import db
    db.init_app(app)


base64编解码：https://www.cnblogs.com/songzhixue/p/11253243.html

字典可以是单引号，json必须是双引号
>>> dict ={'env':'dev','version':'1.0'}

>>> print(json.dumps(dict))
{"env": "dev", "version": "1.0"}
>>> print(type(json.dumps(dict)))
<class 'str'>

>>> print(json.loads(json.dumps(dict)))
{'env': 'dev', 'version': '1.0'}

>>> print(type(json.loads(json.dumps(dict))))
<class 'dict'>

>>> key='version'
>>> value='1.0'
>>> print({key:value})
{'version': '1.0'}
>>> print(type({key:value}))
<class 'dict'>

// 添加环境
function addEnt(entId) {
    if(!entId){
        entId = 0;
    }
    var url = "/system/ent/add";
    var result = get({EntId:entId}, url);
    $("#add_ent_html").html(result);
    $("#add_post_html").modal("toggle")
}