Setup and basic Commands for Maven

Creating a VM in Azure and adding the port.

Login to Azure portal
Create a VM,
After creating VM, add an inbound rule in VM's network port 8080.

Below are the command to JDK as it is pre-requisite to install maven,
```
 sudo apt-get update -y
 sudo apt install openjdk-11-jre -y #JDK installation
```
```
 sudo apt-get install maven -y #Install Maven
```
Now Cloning the Java repository,
```
 git clone <Copied github_URL>
```
Apache Maven has a well-defined build lifecycle that consists of phases and goals. These lifecycles is our focus area,

Clean Lifecycle

clean: Removes all files generated by the previous build. This phase helps ensure a clean slate for the next build.
Default Lifecycle

validate: Checks the project's structure and dependencies for correctness.

compile: Compiles the project's source code.

test: Runs unit tests using a suitable testing framework.

package: Takes the compiled code and packages it into a distributable format (e.g., JAR, WAR, or EAR).

After the above command, you may run the application by typing below command,
```
  java -jar <application_name.jar> # It will run the application
```
Now copy the VM public URL and paste in new tab of your browser in below format to see your app running.
```
  https://<Maven_VM_public_IP>:8080/
```
verify: Runs integration tests to verify the correctness of the package.

install: Installs the package into the local repository for use as a dependency in other projects.

deploy: Copies the package to a remote repository for sharing with other developers and projects.

Here are some commonly used mvn commands:

mvn clean: This command cleans the project by deleting the target directory and other build artifacts. It's often used to start with a clean slate before building the project again.
```
 mvn clean
```
mvn compile: This command compiles the Java source code in your project.
```
 mvn compile
```
mvn test: This command runs unit tests in your project.
```
 mvn test
```
mvn package: This command packages your project into a distributable format (e.g., JAR, WAR, or EAR) without installing it to the local repository.
```
 mvn package
```
mvn install: This command compiles, tests, and packages your project, and then installs it in your local Maven repository (~/.m2/repository). Other projects can use it as a dependency.
```
 mvn install
```
mvn deploy: This command deploys your project to a remote Maven repository. It's often used to share your project with other developers or teams.
```
 mvn deploy
```
mvn clean install: This is a common combination of commands. It cleans the project, compiles, tests, packages, and installs it to your local repository.
```
 mvn clean install
```
mvn clean package: This command cleans the project, compiles the code, and packages it without installing it to the local repository.
```
 mvn clean package
```
mvn dependency:tree: This command displays the dependency tree for your project, showing all dependencies and their versions.
```
 mvn dependency:tree
```
mvn archetype:generate: This command generates a new Maven project from a predefined template or archetype. It will prompt you to choose an archetype and provide project details.
```
mvn archetype:generate
```