Roy "rat" Tokeshi

If you have deleted your default VPC in AWS, you can create a new default VPC. A default VPC is a VPC that is automatically created for your AWS account when you create an AWS account. It is the VPC that is automatically selected for new instances and other AWS resources that you launch.

To create a new default VPC, follow these steps:

1. Sign in to the AWS Management Console and navigate to the VPC dashboard.
2. In the navigation pane, choose VPCs, and then choose Create VPC.
3. In the Create VPC dialog box, enter a name and CIDR block for the VPC. The CIDR block is the range of IP addresses that are available for use in the VPC.
4. Choose the region in which to create the VPC.
5. Choose the Enable DNS hostnames option to enable instances in the VPC to resolve hostnames to IP addresses.
6. Choose the Create VPC button.
7. Wait for the VPC to be created and for its status to become available.

Once the VPC is created, you can use it as your default VPC for new instances and other AWS resources that you launch. You can also create subnets, security groups, and other network resources as needed to support your applications.

You can create a gateway endpoint for Amazon S3 using the AWS CLI. Here’s an example of a bash script that creates a gateway endpoint for S3:

#!/bin/bash

# Set the AWS CLI region
aws configure set default.region us-west-2

# Define the VPC ID and the subnet IDs
vpc_id="vpc-12345678"
subnet_ids="subnet-12345678 subnet-23456789"

# Create the gateway endpoint for Amazon S3
aws ec2 create-vpc-endpoint \
    --vpc-id vpc-1a2b3c4d \
    --service-name com.amazonaws.us-east-1.s3 \
    --route-table-ids rtb-11aa22bb

In this example, replace vpc-12345678 with the ID of the VPC in which you want to create the endpoint, replace subnet-12345678 and subnet-23456789 with the IDs of the subnets in which to create the endpoint, and replace sg-12345678 with the ID of the security group to associate with the endpoint.

The aws ec2 create-vpc-endpoint command creates the gateway endpoint for Amazon S3, using the specified VPC ID, subnet IDs, security group ID, and endpoint type. Once the endpoint is created, you can use it to access Amazon S3 resources from instances within your VPC without using the public internet.

Note: You will need to have the necessary IAM permissions to create VPC endpoints in order to run this script. You can find more information on the necessary IAM permissions in the AWS documentation.

To create a gateway endpoint for Amazon S3 in the AWS Management Console, follow these steps:

1. Sign in to the AWS Management Console and navigate to the VPC dashboard.
2. In the navigation pane, choose Endpoints, and then choose Create Endpoint.
3. In the Create Endpoint dialog box, choose the VPC in which you want to create the endpoint.
4. Choose the Service category as Amazon S3, and then choose the S3 service.
5. Choose the VPC subnets in which you want to create the endpoint. You can choose one or more subnets.
6. Choose the security group you want to associate with the endpoint. You can use an existing security group or create a new one.
7. Choose the type of endpoint you want to create. For a gateway endpoint, choose Gateway.
8. Choose Create endpoint.
9. Wait for the endpoint to be created and for its status to become available.

Once the endpoint is created and available, you can use it to access Amazon S3 resources from instances within your VPC without using the public internet. This can help improve security, performance, and reliability for your S3 access.

You can create a VPC endpoint for Amazon S3 in AWS CloudFormation using the AWS::EC2::VPCEndpoint resource type. Here’s an example of a CloudFormation template that creates a VPC endpoint for S3:

---
AWSTemplateFormatVersion: '2010-09-09'
Resources:
  S3VPCEndpoint:
    Type: AWS::EC2::VPCEndpoint
    Properties:
      VpcId: !Ref VPC
      ServiceName: com.amazonaws.us-west-2.s3
      RouteTableIds:
        - !Ref PublicRouteTable
      SubnetIds:
        - !Ref PublicSubnet1
        - !Ref PublicSubnet2
      SecurityGroupIds:
        - !Ref SecurityGroup
      PolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Action: '*'
            Effect: Allow
            Principal: '*'
            Resource: '*'
      VpcEndpointType: Interface

Parameters:
  VPC:
    Type: AWS::EC2::VPC::Id
  PublicRouteTable:
    Type: AWS::EC2::RouteTable::Id
  PublicSubnet1:
    Type: AWS::EC2::Subnet::Id
  PublicSubnet2:
    Type: AWS::EC2::Subnet::Id
  SecurityGroup:
    Type: AWS::EC2::SecurityGroup::Id

In this example, the AWS::EC2::VPCEndpoint resource creates the VPC endpoint for Amazon S3, using the specified VPC ID, subnet IDs, security group ID, and endpoint type. The RouteTableIds, SubnetIds, and SecurityGroupIds properties define the network resources to associate with the endpoint. The PolicyDocument property defines the permissions for the endpoint.

Note: You will need to have the necessary IAM permissions to create VPC endpoints and CloudFormation templates in order to use this CloudFormation template. You can find more information on the necessary IAM permissions in the AWS documentation.

Here’s an example of a bash script that enables all active directories in an AWS account for use with Amazon WorkSpaces using the AWS CLI:

#!/bin/bash

# Set the AWS CLI region
aws configure set default.region us-west-2

# Get a list of all the active directories in the AWS account
active_directories=$(aws ds list-directories --query 'DirectoryDescriptions[].DirectoryId' --output text)

# Loop through the list of active directories
for directory in $active_directories; do
  # Enable the directory for use with Amazon WorkSpaces
  aws workspaces enable-workspace-directory --directory-id $directory

  # Confirm that the directory has been enabled
  enabled_directories=$(aws workspaces describe-workspace-directories --directory-ids $directory --query 'Directories[].DirectoryId' --output text)
  if [ $enabled_directories == $directory ]; then
    echo "Success: Directory $directory has been enabled for use with Amazon WorkSpaces."
  else
    echo "Error: Directory $directory could not be enabled for use with Amazon WorkSpaces."
  fi
done

In this example, the AWS CLI is used to retrieve a list of all the active directories in the AWS account, and the bash script loops through that list, enabling each directory for use with Amazon WorkSpaces. The script then confirms that each directory has been successfully enabled by checking the list of enabled directories. If a directory has been successfully enabled, the script will print a success message, and if not, it will print an error message.

This script enables all the active directories in the AWS account for use with Amazon WorkSpaces. You can modify this script to fit your specific needs, such as filtering the list of active directories based on certain criteria.

The register-workspace-directory command is used to register a directory in Amazon WorkSpaces, which enables you to use Amazon WorkSpaces with your existing directory.

Here’s an example of how you can use the register-workspace-directory command in the AWS CLI:

aws workspaces register-workspace-directory --directory-id d-1234567890 --subnet-ids subnet-1234567890 subnet-2345678901 --enable-work-docs true --enable-self-service true

In this example, d-1234567890 is the ID of the directory you want to register, subnet-1234567890 and subnet-2345678901 are the IDs of the subnets in which to launch Amazon WorkSpaces, --enable-work-docs true enables Amazon WorkDocs for the directory, and --enable-self-service true enables self-service capabilities for your users.

You can also specify other optional parameters when using the register-workspace-directory command, such as the default organizational unit (OU) for your WorkSpaces and the default security group for your WorkSpaces. You can find more information on these parameters and the register-workspace-directory command in the Amazon WorkSpaces documentation.

Here’s an example of a bash script that enables a specific AWS Directory for use with Amazon Workspaces using the AWS CLI:

#!/bin/bash

# Set the AWS CLI region
aws configure set default.region us-west-2

# Specify the directory ID and the directory name
directory_id="d-1234567890"
directory_name="example-directory"

# Enable the directory for use with Amazon Workspaces
aws workspaces enable-workspace-directory --directory-id $directory_id

# Confirm that the directory has been enabled
enabled_directories=$(aws workspaces describe-workspace-directories --directory-ids $directory_id --query 'Directories[].DirectoryId' --output text)
if [ $enabled_directories == $directory_id ]; then
  echo "Success: $directory_name has been enabled for use with Amazon Workspaces."
else
  echo "Error: $directory_name could not be enabled for use with Amazon Workspaces."
fi

In this example, replace d-1234567890 with the actual ID of the directory you want to enable for use with Amazon Workspaces. This bash script uses the AWS CLI to enable the specified directory for use with Amazon Workspaces, and then confirms that the directory has been successfully enabled by checking the list of enabled directories. If the directory has been successfully enabled, the script will print a success message, and if not, it will print an error message.

Here’s an example of a bash script that lists the active directories in an AWS account using the AWS CLI:

#!/bin/bash

# Set the AWS CLI region
aws configure set default.region us-west-2

# Get a list of all the active directories in the AWS account
active_directories=$(aws ds describe-directories --query 'DirectoryDescriptions[].Name' --output text)

# Loop through the list of active directories
for directory in $active_directories; do
  # Print the name of each active directory
  echo $directory
done

In this example, the AWS CLI is used to retrieve a list of all the active directories in the AWS account, and the bash script loops through that list, printing the name of each active directory. You can modify this script to fit your specific needs, such as filtering the list of active directories based on certain criteria.