arun-gupta/lil-kubernetes-for-java

Kubernetes for Java Developers - LinkedIn Learning Course

Kubernetes for Java Developer

Deploying your Java application in a Kubernetes cluster could feel like Alice in Wonderland. You keep going down the rabbit hole and don’t know how to make that ride comfortable. This repository contains source code and instructions for a Lynda course that explains how a Java application can be deployed, tested, debugged and monitored in a Kubernetes cluster. In addition, it also talks about canary deployment and deployment pipeline.

The content in this repo is explained at https://www.linkedin.com/learning/kubernetes-for-java-developers.

lil-kubernetes-for-java's Issues

I really need help with a Java program, please

Hello! I must create the next Java program, maybe you could help me, please: given two lists (you must choose the data lists lines that are considered suitable for the solution of the project: ----Simple Linear Lists, Linear Circular Lists, Double Chained Linear Lists----) polynomial1 and polynomial2, which represent polynomials, elaborate the methods that return in a list sumapoli the sum of the polynomials (polynomial1 + polynomial2) and in a list of multiplication products of the polynomials (polynomial1 * polynomial2). The list is stored in an object of the class "Polynomial" and each element of the list is an object of the class Term; at a general level, a Polynomial will be made up of a finite number of Terms. The polynomials are read through a plain text of the name "Polin.txt", with the following format:

Coefficient-1, exponent-1; Coefficient-2, exponent-2;

The file must contain ONLY two lines, where each one represents polynomial, these can not be, SECURE, that the terms are not repeated. According to the following example:

2x ^ 2 + 3x + 2

It would be represented in the plain text file as:

2.2; 3.1; 2.0

The independent term "2" will have the exponent "0". FOR EFFECTS OF THE PROBLEM, SUPPOSE THAT THE VARIABLE IS ALWAYS "X".

An interface must be created to carry out the project, objects for the operation and tests of this.

(The thing is I got the program to read plain text, but it reads the "comas" as the exponent, and I need it to read each number. I already have the Double Chained Linear Lists too).

Maven Jib-Plugin not found

I am using intellij IDE for this project, the Jib-Maven plugin not found, I don't understand that is it Maven issue or Intellij ?

Rough Time With jdeps and jlink and spring

Just trying to get the command
cp target/greeting.war target/greeting.jar jlink \ --output myjre \ --add-modules $(jdeps --print-module-deps target/greeting.jar),\ java.xml,jdk.unsupported,java.sql,java.naming,java.desktop,\ java.management,java.security.jgss,java.instrument

But jdeps can't locate the spring boot dependencies. I started using just the jdeps command to try to isolate the dependencies. There are only 4 top-level dependencies.
When I use the --module-path in jdeps as follows I get a huge list of unmet (not found) dependencies:

jdeps --multi-release 14 --module-path ./target/greeting/WEB-INF/lib --print-module-deps target/greeting.jar

Had to use --multi-release for log4j because it's now a multi-release jar

The module path is pointing to the greeting.jar lib with all the jars that it needs. This jar and the war both run fine using the maven commands.

So why is jdeps being such a pain? Do I have to install spring boot elsewhere and use the module or classpath to find it?

For now I will continue with course using the fat jdk 14 just so I don't go insane and throw my computer out the window!

Fraser

Helm 3.0 has new commands

I noticed that helm init and other commands were either removed or the arguments changed. Would we be able to get an updated set of commands here?

https://helm.sh/docs/topics/v2_v3_migration/#overview-of-helm-3-changes