Day 43 of #90DaysOfDevOps
Task-01
Launch an EC2 instance using the AWS Management Console and connect to it using Secure Shell (SSH).
Create an S3 bucket and upload a file to it using the AWS Management Console.
Access the file from the EC2 instance using the AWS Command Line Interface (AWS CLI).
Task-02
Create a snapshot of the EC2 instance and use it to launch a new EC2 instance.
Download a file from the S3 bucket using the AWS CLI.
Verify that the contents of the file are the same on both EC2 instances.
Solution-01
Create one EC2 instance with Ubuntu and add user data to update os and install AWS CLI.
It will take some time to start the instance. Till then search for S3 in AWS management console and click on it.
Click on "Create bucket".
Enter bucket name which has to be unique. Then scroll down and click on create.
Click on the bucket name and upload a file.
Click on upload, then add file and select a file.
Now, go back to AWS EC2 dashboard and connect the instance.
To verify the installation of AWS CLI, enter
aws --version
Configure AWS CLI.
Fetch S3 bucket objects with the command
aws s3 ls s3://bucket-name
Now to download the file enter the command
aws s3 cp s3://myawsbucket-for-developer001/File-One.txt .Verify by the cat command.
Solution-02
Create a snapshot of the existing running instance.
Go to snapshot from the left panel of the EC2 dashboard and then create a snapshot.
Next, select "instance" and the instance that we just used to connect the S3.
Scroll down and click on "create snapshot".
Select the snapshot, click on "Actions" and "Create image from snapshot".
Then enter image name.
Scroll down and click on "create".
Now go to AMIs (Amazon Machine Images) from the left panel of the EC2 dashboard and then select image.
Then click on "Launch instance".
Enter name and launch.
Now connect the instance through the SSH. And configure the AWS cli.
Then copy the file from the bucket to local storage.
Cat the file to verify.
Commonly used AWS CLI commands for Amazon S3:
aws s3 ls - This command lists all of the S3 buckets in your AWS account.
aws s3 mb s3://bucket-name - This command creates a new S3 bucket with the specified name.
aws s3 rb s3://bucket-name - This command deletes the specified S3 bucket.
aws s3 cp file.txt s3://bucket-name - This command uploads a file to an S3 bucket.
aws s3 cp s3://bucket-name/file.txt . - This command downloads a file from an S3 bucket to your local file system.
aws s3 sync local-folder s3://bucket-name - This command syncs the contents of a local folder with an S3 bucket.
aws s3 ls s3://bucket-name - This command lists the objects in an S3 bucket.
aws s3 rm s3://bucket-name/file.txt - This command deletes an object from an S3 bucket.
aws s3 presign s3://bucket-name/file.txt - This command generates a pre-signed URL for an S3 object, which can be used to grant temporary access to the object.
aws s3api list-buckets - This command retrieves a list of all S3 buckets in your AWS account, using the S3 API.
Thank You.