The quickest ad fastest response would be:
A Lambda is an entity that is key for "anonymous functions / run code on events" aka... It does stuff in response to conditions.
"Otherwise think of it as a huge super computer turned off and only runs your functions with conditions happen to keep your cost (maintenance/power/usage) low!
AWS Lambda (Node.js, Java, and Python) - is the service code on behalf of your infrastructure.
Azure uses Functions called (Logic Apps) -
Google's Cloud Functions -
All of them can do what AWS is doing!
Now let me teach you some quick functions(Lambdas) so you can get started!
Teaching lesson 1 "hello-world"
Step 1:
Pick the wizard that says "Hello World"
Step 2: Put in your names and select
Step 3: Now its time to learn configure the trigger (The event that makes it happen) :
We will use a Cron (Cloudwatch event schedule):
Step 4 Now just name some random variables, then click enable:
* Note: If you need help with crons go here: http://www.cronmaker.com/
* I will be using: every day at 2:25pm
|25 14 30 * * ? |
--- use * for wild cards meaning every
| | -| -| -| -| = min (0 - 60)
| -| -| -| -| = hour (0-23)
| -| -| -| = day of the month (1-31)
-| -| -| = month (1-12)
| -| = day of the week
| = year
Step 5 now you need to name your function:
Step 6 scroll down and name the role:
Step 7 now click next and select create function
Step 8: You are now done, now your trigger is set on a timer to happen!
Running a website in S3 as static, but when a logic page is accessed I want to turn on a system and serve it from there (Elastic Load balance (ELB) with response to code would be the cheapest way unless it was clicked all the time) so a bad choice would be something that is clicked a million times per second. Because you are charged pennies when you click and for the lambdas.
*So be careful as they can add up if you have 20 lambdas running per trigger. As it may be smarter to run a small ec2, google vm, Azure vms. To minimize an ongoing trigger.
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