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NEW QUESTION 23
You are building a cloud native, serverless travel application with multiple Oracle Functions in Java, Python and Node.js. You need to build and deploy these functions to a single applications named travel-app.
Which command will help you complete this task successfully?
- A. fn function deploy --all --application-name travel-ap
- B. oci fn application --application-name-ap deploy --all
- C. fn -v deploy --ap travel-ap -- all
- D. oci fn function deploy --ap travel-ap --all
To get started with Oracle Functions:
Creating, Deploying, and Invoking a Helloworld Function
Step 6- Change directory to the newly created helloworld-func directory.
Step 7- Enter the following single Fn Project command to build the function and its dependencies as a Docker image called helloworld-func, push the image to the specified Docker registry, and deploy the function to Oracle Functions in the helloworld-app:
$ fn -v deploy --app helloworld-app
The -v option simply shows more detail about what Fn Project commands are doing (see Using the Fn Project CLI with Oracle Functions).
NEW QUESTION 24
A developer using Oracle Cloud Infrastructure (OCI) API Gateway must authenticate the API requests to their web application. The authentication process must be implemented using a custom scheme which accepts string parameters from the API caller. Which method can the developer use In this scenario?
- A. Create an authorizer function using OCI Identity and Access Management based authentication
- B. Create an authorizer function using request header authorization.
- C. Create an authorizer function using token-based authorization.
- D. Create a cross account functions authorizer.
Using Authorizer Functions to Add Authentication and Authorization to API Deployments:
You can control access to APIs you deploy to API gateways using an 'authorizer function' (as described in this topic), or using JWTs (as described in Using JSON Web Tokens (JWTs) to Add Authentication and Authorization to API Deployments).
You can add authentication and authorization functionality to API gateways by writing an 'authorizer function' that:
1. Processes request attributes to verify the identity of a caller with an identity provider.
2.Determines the operations that the caller is allowed to perform.
3.Returns the operations the caller is allowed to perform as a list of 'access scopes' (an 'access scope' is an arbitrary string used to determine access).
Optionally returns a key-value pair for use by the API deployment. For example, as a context variable for use in an HTTP back end definition (see Adding Context Variables to Policies and HTTP Back End Definitions).
Create an authorizer function using request header authorization implemented using a custom scheme which accepts string parameters from the API caller.
Managing Input Parameters
In our case we will need to manage quite a few static parameters in our code. For example the URLs of the secrets service endpoints, the username and other constant parameterised data. We can manage these either at Application or Function level (an OCI Function is packaged in an Application which can contain multiple Functions). In this case I will create function level parameters. You can use the following command to create the parameters:
fn config function test idcs-assert idcsClientId aedc15531bc8xxxxxxxxxxbd8a193
NEW QUESTION 25
You are developing a polyglot serverless application using Oracle Functions. Which language cannot be used to write your function code?
- A. PL/SQL
- B. Java
- C. Python
- D. Node.js
Overview of Functions:
The serverless and elastic architecture of Oracle Functions means there's no infrastructure administration or software administration for you to perform. You don't provision or maintain compute instances, and operating system software patches and upgrades are applied automatically. Oracle Functions simply ensures your app is highly-available, scalable, secure, and monitored. With Oracle Functions, you can write code in Java, Python, Node, Go, and Ruby (and for advanced use cases, bring your own Dockerfile, and Graal VM). You can then deploy your code, call it directly or trigger it in response to events, and get billed only for the resources consumed during the execution.
NEW QUESTION 26