How can I upload a Configuration file to EC2 Instance’ securely?

 In the context of AWS, here are the appropriate approaches given by using the example of Python coding snippet using paramiko, an SSH Library:-

Import paramiko

# Define EC2 instance details

Ec2_instance_ip = ‘EC2_INSTANCE_IP’

Username = ‘ec2-user’  # Replace with the appropriate username

Private_key_path = ‘PATH_TO_PRIVATE_KEY_FILE’

# Create SSH client

Ssh_client = paramiko.SSHClient()

Ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# Load private key for authentication

Private_key = paramiko.RSAKey.from_private_key_file(private_key_path)

# Connect to the EC2 instance

Ssh_client.connect(hostname=ec2_instance_ip, username=username, pkey=private_key)

# Upload file to EC2 instance

Local_file_path = ‘PATH_TO_LOCAL_FILE’

Remote_file_path = ‘PATH_TO_REMOTE_DIRECTORY/FILE_NAME’

Sftp_client = ssh_client.open_sftp()

Sftp_client.put(local_file_path, remote_file_path)

# Close SSH and SFTP connections

Sftp_client.close()

Ssh_client.close()

Print(f”File uploaded successfully to {ec2_instance_ip}:{remote_file_path}”)

Below is the example given of java programming language by using the JSch library for uploading a file to an EC2 Instance securely by using the SSH protocol:-

Import com.jcraft.jsch.Channel;

Import com.jcraft.jsch.ChannelSftp;

Import com.jcraft.jsch.JSch;

Import com.jcraft.jsch.Session;

Import java.io.File;

Public class SshFileUploader {

    Public static void main(String[] args) {

        String ec2InstanceIp = “EC2_INSTANCE_IP”;

        String username = “ec2-user”;  // Replace with the appropriate username

        String privateKeyPath = “PATH_TO_PRIVATE_KEY_FILE”;

        String localFilePath = “PATH_TO_LOCAL_FILE”;

        String remoteDirectory = “PATH_TO_REMOTE_DIRECTORY”;

        String fileName = “FILE_NAME”;

        JSch jsch = new JSch();

        Session session = null;

        Channel channel = null;

        ChannelSftp channelSftp = null;

        Try {

            // Load private key

            Jsch.addIdentity(privateKeyPath);

            // Establish SSH session

            Session = jsch.getSession(username, ec2InstanceIp, 22);

            Session.setConfig(“StrictHostKeyChecking”, “no”);

            Session.connect();

            // Open SFTP channel

            Channel = session.openChannel(“sftp”);

            Channel.connect();

            channelSftp = (ChannelSftp) channel;

            // Change directory to remote directory

            channelSftp.cd(remoteDirectory);

            // Upload file

            File file = new File(localFilePath);

            channelSftp.put(file.getAbsolutePath(), fileName);

            System.out.println(“File uploaded successfully.”);

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            If (channelSftp != null) {

                channelSftp.disconnect();

            }

            If (channel != null) {

                Channel.disconnect();

            }

            If (session != null) {

                Session.disconnect();

            }

        }

    }

}