Do that Python thing - without the servers!
Add a watermark to a picture that was uploaded in your app
Created by Rich Jones (github/miserlou)
Serverless Python Web Services - Powered by AWS Lambda and API Gateway
*Web Server Gateway Interface
The name that cloud providers give to Microservices
The name that cloud providers give to Microservices
Think Functions!
| Cloud Provider | Service Name |
|---|---|
| AWS | Lambda |
| Microsoft Azure | Functions |
| Cloud Functions |
Handler function
def my_handler(event, context):
return "response!"Converts HTML into Lambda event/context objects
Handler function
def my_handler(event, context):
return "response!"PEP 333 (WSGI) !!!
def wsgi_function(environ, start_response):
return "response!"Converts lambda event/context into WSGI
Supports all python WSGI frameworks
Can create all the AWS permissions/roles/buckets for you
zappa initUnderstand what this step does
Manage your deployments
zappa deployzappa updateUnderstand what is going on inside your app
zappa statuszappa tailConfigure Events
"events": [
{ // Recurring events
"function": "your_module.your_recurring_function", // The function to execute
"expression": "rate(1 minute)" // When to execute it (in cron or rate format)
},
{ // AWS Reactive events
"function": "your_module.your_reactive_function", // The function to execute
"event_source": {
"arn": "arn:aws:s3:::my-bucket", // The ARN of this event source
"events": [
"s3:ObjectCreated:*" // The specific event to execute in response to.
]
}
}
]Environment variables in zappa config, S3 or KMS
Certificate management
Django management commands
Leverages writing python apps on AWS Lambda
AWS is cheap - specially for small apps
Default options are permissive security wise
Serverless = Stateless
you still need to store your data somewhere