OVERVIEW
Scala stands for Scalable Language. It is a multi-paradigm programming language. Scala language includes features of functional programming and object-oriented programming. It is a statically typed language. Its source code is compiled into bytecode and executed by Java virtual machine(JVM).
GOALS
One-click launch
Easy configurable AMI with pre-installed Ubuntu Server with Scala 3
INSTALLATION VIA AWS MARKETPLACE
Kindly click on the below link to install the server via AWS Marketplace:
Pending...
GET STARTED
To verify the installation, follow the below instructions
Step 1. Connect to SSH:
Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.
In the navigation pane, choose Instances.
Select the instance and choose Connect.
Choose SSH Client
Copy the SSH command and paste it into the terminal.
ssh ubuntu@publicIP -i [Path of key pair file]If it shows an access denied message run the following command, then run the above command again to connect via ssh.
chmod 400 [Path of key pair file]Once launched in the Amazon EC2 Service, please connect to the instance via an SSH client using the ec2-user with the key pair associated at launch. Once connected as the ec2-user user, you will be able to sudo to the root user.
Step 2. Verify the installation
Follow the steps to verify the scala installation
1. Open a command prompt
2. Type the below command
scala -version3. You will see the response as shown below:
4. For example how to run a scala file on the terminal:
5. Run the command given below: sudo vi Hello.Scala 6. After that paste the code in the file given below :
object Hello {
def main(args: Array[String]) = {
println("Hello, world")
}
}
7. Run the below command: scalac Hello.Scala
8. After that run the below command: scala Hello 9. Then you will get "Hello, World " as an output
To monitor and assess application functions:-
a. Navigate to your Amazon EC2 console and verify that you're in the correct region.
b. Choose Instances and select your launched instance.
c. Select the server to display your metadata page and choose the Status checks tab at the bottom of the page to review if your status checks passed or failed.
for detailed information about managing and requesting increased service please visit:https://docs.aws.amazon.com/general/latest/gr/aws_service_limits
for information about how to use the application, please visit:https://www.tutorialspoint.com/scala/index.htm
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