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‎tuts/117-elastic-load-balancing-gs/README.md‎

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# ELB: Create an Application Load Balancer
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Create an Application Load Balancer with a security group, target group, and HTTP listener using the default VPC.
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## Source
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https://docs.aws.amazon.com/elasticloadbalancing/latest/application/application-load-balancer-getting-started.html
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## Use case
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- **ID**: elbv2/getting-started
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- **Level**: intermediate
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- **Core actions**: `elbv2:CreateLoadBalancer`, `elbv2:CreateListener`, `elbv2:CreateTargetGroup`
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## Steps
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1. Get VPC and subnets
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2. Create a security group
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3. Create a target group
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4. Create the Application Load Balancer
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5. Wait for ALB to be active
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6. Create an HTTP listener
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7. Describe the ALB
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## Resources created
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| Resource | Type |
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|----------|------|
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| `tut-alb-<random>` | Application Load Balancer |
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| `tut-tg-<random>` | Target group |
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| `tut-alb-sg-<random>` | Security group |
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| HTTP listener on port 80 | Listener |
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## Duration
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~121 seconds (most time spent waiting for ALB provisioning)
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## Cost
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~$0.02/hr while the ALB is running. Clean up promptly to avoid charges.
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## Related docs
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- [Getting started with Application Load Balancers](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/application-load-balancer-getting-started.html)
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- [Create an Application Load Balancer](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/create-application-load-balancer.html)
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- [Target groups for ALBs](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-target-groups.html)
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- [Elastic Load Balancing pricing](https://aws.amazon.com/elasticloadbalancing/pricing/)
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---
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## Appendix
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| Field | Value |
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|-------|-------|
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| Date | 2026-04-14 |
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| Script lines | 112 |
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| Exit code | 0 |
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| Runtime | 121s |
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| Steps | 7 |
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| Issues | None |
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| Version | v1 |

‎tuts/117-elastic-load-balancing-gs/elastic-load-balancing-gs.md‎

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# Create an Application Load Balancer with Elastic Load Balancing
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## Overview
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In this tutorial, you use the AWS CLI to create an Application Load Balancer (ALB) in your default VPC. You create a security group, target group, and HTTP listener, then verify the ALB is active. You then delete all resources during cleanup.
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## Prerequisites
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- AWS CLI installed and configured with appropriate permissions.
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- A default VPC with at least two subnets in different Availability Zones.
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- An IAM principal with permissions for `elbv2:CreateLoadBalancer`, `elbv2:CreateTargetGroup`, `elbv2:CreateListener`, `elbv2:DescribeLoadBalancers`, `elbv2:DeleteLoadBalancer`, `elbv2:DeleteTargetGroup`, `elbv2:DeleteListener`, `ec2:CreateSecurityGroup`, `ec2:AuthorizeSecurityGroupIngress`, `ec2:DeleteSecurityGroup`, `ec2:DescribeVpcs`, and `ec2:DescribeSubnets`.
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## Step 1: Get VPC and subnets
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Identify the default VPC and select two subnets for the ALB. An ALB requires subnets in at least two Availability Zones.
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```bash
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VPC_ID=$(aws ec2 describe-vpcs --filters "Name=isDefault,Values=true" \
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--query 'Vpcs[0].VpcId' --output text)
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SUBNETS=$(aws ec2 describe-subnets --filters "Name=vpc-id,Values=$VPC_ID" \
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--query 'Subnets[:2].SubnetId' --output text)
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SUBNET1=$(echo "$SUBNETS" | awk '{print $1}')
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SUBNET2=$(echo "$SUBNETS" | awk '{print $2}')
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echo "VPC: $VPC_ID Subnets: $SUBNET1, $SUBNET2"
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```
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## Step 2: Create a security group
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Create a security group that allows inbound HTTP traffic on port 80.
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```bash
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RANDOM_ID=$(openssl rand -hex 4)
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SG_ID=$(aws ec2 create-security-group --group-name "tut-alb-sg-${RANDOM_ID}" \
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--description "Tutorial ALB security group" --vpc-id "$VPC_ID" \
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--query 'GroupId' --output text)
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aws ec2 authorize-security-group-ingress --group-id "$SG_ID" \
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--protocol tcp --port 80 --cidr 0.0.0.0/0 > /dev/null
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echo "Security group: $SG_ID"
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```
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This rule allows HTTP traffic from any source. In production, restrict the CIDR to known IP ranges.
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## Step 3: Create a target group
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Create an IP-based target group. The ALB forwards traffic to targets registered in this group.
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```bash
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TG_NAME="tut-tg-${RANDOM_ID}"
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TG_ARN=$(aws elbv2 create-target-group --name "$TG_NAME" \
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--protocol HTTP --port 80 --vpc-id "$VPC_ID" \
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--target-type ip \
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--query 'TargetGroups[0].TargetGroupArn' --output text)
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echo "Target group: $TG_ARN"
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```
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Target type `ip` lets you register IP addresses directly. Use `instance` to register EC2 instances by ID instead.
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## Step 4: Create the Application Load Balancer
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Create the ALB across the two subnets with the security group attached.
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```bash
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ALB_NAME="tut-alb-${RANDOM_ID}"
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ALB_ARN=$(aws elbv2 create-load-balancer --name "$ALB_NAME" \
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--subnets $SUBNET1 $SUBNET2 \
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--security-groups "$SG_ID" \
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--query 'LoadBalancers[0].LoadBalancerArn' --output text)
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echo "ALB ARN: $ALB_ARN"
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```
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## Step 5: Wait for ALB to be active
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The ALB takes 1–2 minutes to provision. Wait for it to reach the `active` state.
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```bash
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aws elbv2 wait load-balancer-available --load-balancer-arns "$ALB_ARN"
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DNS_NAME=$(aws elbv2 describe-load-balancers --load-balancer-arns "$ALB_ARN" \
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--query 'LoadBalancers[0].DNSName' --output text)
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echo "DNS: $DNS_NAME"
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```
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The DNS name is publicly resolvable. Without registered targets, requests to this DNS return a 503 error.
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## Step 6: Create an HTTP listener
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Create a listener on port 80 that forwards traffic to the target group.
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```bash
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LISTENER_ARN=$(aws elbv2 create-listener --load-balancer-arn "$ALB_ARN" \
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--protocol HTTP --port 80 \
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--default-actions "Type=forward,TargetGroupArn=$TG_ARN" \
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--query 'Listeners[0].ListenerArn' --output text)
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echo "Listener: $LISTENER_ARN"
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```
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The default action forwards all requests to the target group. You can add rules to route requests based on path or host header.
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## Step 7: Describe the ALB
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View the ALB configuration.
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```bash
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aws elbv2 describe-load-balancers --load-balancer-arns "$ALB_ARN" \
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--query 'LoadBalancers[0].{Name:LoadBalancerName,DNS:DNSName,State:State.Code,Type:Type}' \
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--output table
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```
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## Cleanup
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Delete resources in reverse order. The ALB must be fully deleted before you can remove the target group.
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```bash
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aws elbv2 delete-listener --listener-arn "$LISTENER_ARN"
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aws elbv2 delete-load-balancer --load-balancer-arn "$ALB_ARN"
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echo "Waiting for ALB deletion..."
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aws elbv2 wait load-balancers-deleted --load-balancer-arns "$ALB_ARN"
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aws elbv2 delete-target-group --target-group-arn "$TG_ARN"
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aws ec2 delete-security-group --group-id "$SG_ID"
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```
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ALBs incur hourly charges (~$0.02/hr) plus data processing fees. Clean up promptly to avoid costs.
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The script automates all steps including cleanup:
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```bash
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bash elastic-load-balancing-gs.sh
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```
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## Related resources
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- [Getting started with Application Load Balancers](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/application-load-balancer-getting-started.html)
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- [Create an Application Load Balancer](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/create-application-load-balancer.html)
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- [Target groups for ALBs](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-target-groups.html)
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- [Elastic Load Balancing pricing](https://aws.amazon.com/elasticloadbalancing/pricing/)

‎tuts/117-elastic-load-balancing-gs/elastic-load-balancing-gs.sh‎

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#!/bin/bash
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# Tutorial: Create an Application Load Balancer
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# Source: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/application-load-balancer-getting-started.html
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WORK_DIR=$(mktemp -d)
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LOG_FILE="$WORK_DIR/elbv2-$(date +%Y%m%d-%H%M%S).log"
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exec > >(tee -a "$LOG_FILE") 2>&1
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REGION=${AWS_DEFAULT_REGION:-${AWS_REGION:-$(aws configure get region 2>/dev/null)}}
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if [ -z "$REGION" ]; then
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echo "ERROR: No AWS region configured. Set one with: export AWS_DEFAULT_REGION=us-east-1"
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exit 1
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fi
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export AWS_DEFAULT_REGION="$REGION"
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echo "Region: $REGION"
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RANDOM_ID=$(openssl rand -hex 4)
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ALB_NAME="tut-alb-${RANDOM_ID}"
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TG_NAME="tut-tg-${RANDOM_ID}"
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handle_error() { echo "ERROR on line $1"; trap - ERR; cleanup; exit 1; }
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trap 'handle_error $LINENO' ERR
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cleanup() {
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echo ""
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echo "Cleaning up resources..."
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[ -n "$LISTENER_ARN" ] && aws elbv2 delete-listener --listener-arn "$LISTENER_ARN" 2>/dev/null && echo " Deleted listener"
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[ -n "$ALB_ARN" ] && aws elbv2 delete-load-balancer --load-balancer-arn "$ALB_ARN" 2>/dev/null && echo " Deleted ALB $ALB_NAME"
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# Wait for ALB to be deleted before deleting TG
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if [ -n "$ALB_ARN" ]; then
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echo " Waiting for ALB deletion..."
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aws elbv2 wait load-balancers-deleted --load-balancer-arns "$ALB_ARN" 2>/dev/null || sleep 30
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fi
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[ -n "$TG_ARN" ] && aws elbv2 delete-target-group --target-group-arn "$TG_ARN" 2>/dev/null && echo " Deleted target group $TG_NAME"
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[ -n "$SG_ID" ] && aws ec2 delete-security-group --group-id "$SG_ID" 2>/dev/null && echo " Deleted security group $SG_ID"
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rm -rf "$WORK_DIR"
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echo "Cleanup complete."
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}
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# Step 1: Get VPC and subnets
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echo "Step 1: Getting VPC and subnets"
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VPC_ID=$(aws ec2 describe-vpcs --filters "Name=isDefault,Values=true" --query 'Vpcs[0].VpcId' --output text)
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SUBNETS=$(aws ec2 describe-subnets --filters "Name=vpc-id,Values=$VPC_ID" \
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--query 'Subnets[:2].SubnetId' --output text)
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SUBNET1=$(echo "$SUBNETS" | awk '{print $1}')
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SUBNET2=$(echo "$SUBNETS" | awk '{print $2}')
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echo " VPC: $VPC_ID"
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echo " Subnets: $SUBNET1, $SUBNET2"
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# Step 2: Create security group
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echo "Step 2: Creating security group"
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SG_ID=$(aws ec2 create-security-group --group-name "tut-alb-sg-${RANDOM_ID}" \
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--description "Tutorial ALB security group" --vpc-id "$VPC_ID" \
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--query 'GroupId' --output text)
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aws ec2 authorize-security-group-ingress --group-id "$SG_ID" \
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--protocol tcp --port 80 --cidr 0.0.0.0/0 > /dev/null
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echo " Security group: $SG_ID (port 80 open)"
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# Step 3: Create target group
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echo "Step 3: Creating target group: $TG_NAME"
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TG_ARN=$(aws elbv2 create-target-group --name "$TG_NAME" \
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--protocol HTTP --port 80 --vpc-id "$VPC_ID" \
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--target-type ip \
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--query 'TargetGroups[0].TargetGroupArn' --output text)
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echo " Target group ARN: $TG_ARN"
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# Step 4: Create ALB
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echo "Step 4: Creating Application Load Balancer: $ALB_NAME"
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ALB_ARN=$(aws elbv2 create-load-balancer --name "$ALB_NAME" \
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--subnets $SUBNET1 $SUBNET2 \
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--security-groups "$SG_ID" \
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--query 'LoadBalancers[0].LoadBalancerArn' --output text)
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echo " ALB ARN: $ALB_ARN"
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# Step 5: Wait for ALB to be active
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echo "Step 5: Waiting for ALB to be active..."
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aws elbv2 wait load-balancer-available --load-balancer-arns "$ALB_ARN"
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DNS_NAME=$(aws elbv2 describe-load-balancers --load-balancer-arns "$ALB_ARN" \
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--query 'LoadBalancers[0].DNSName' --output text)
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echo " DNS: $DNS_NAME"
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# Step 6: Create listener
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echo "Step 6: Creating HTTP listener"
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LISTENER_ARN=$(aws elbv2 create-listener --load-balancer-arn "$ALB_ARN" \
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--protocol HTTP --port 80 \
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--default-actions "Type=forward,TargetGroupArn=$TG_ARN" \
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--query 'Listeners[0].ListenerArn' --output text)
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echo " Listener ARN: $LISTENER_ARN"
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# Step 7: Describe the ALB
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echo "Step 7: ALB details"
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aws elbv2 describe-load-balancers --load-balancer-arns "$ALB_ARN" \
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--query 'LoadBalancers[0].{Name:LoadBalancerName,DNS:DNSName,State:State.Code,Type:Type}' --output table
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echo ""
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echo "Tutorial complete."
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echo "The ALB is running but has no targets registered."
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echo "Note: ALBs incur hourly charges (~\$0.02/hr). Clean up promptly."
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echo ""
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echo "Do you want to clean up all resources? (y/n): "
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read -r CHOICE
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if [[ "$CHOICE" =~ ^[Yy]$ ]]; then
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cleanup
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else
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echo "Resources left running. ALB charges ~\$0.02/hr."
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echo "Manual cleanup:"
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echo " aws elbv2 delete-listener --listener-arn $LISTENER_ARN"
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echo " aws elbv2 delete-load-balancer --load-balancer-arn $ALB_ARN"
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echo " # Wait 1-2 minutes, then:"
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echo " aws elbv2 delete-target-group --target-group-arn $TG_ARN"
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echo " aws ec2 delete-security-group --group-id $SG_ID"
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fi

‎tuts/143-aws-transfer-gs/aws-transfer-gs.sh‎

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#!/bin/bash
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WORK_DIR=$(mktemp -d); exec > >(tee -a "$WORK_DIR/transfer.log") 2>&1
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REGION=${AWS_DEFAULT_REGION:-$(aws configure get region 2>/dev/null)}; [ -z "$REGION" ] && echo "ERROR: No region" && exit 1; export AWS_DEFAULT_REGION="$REGION"; echo "Region: $REGION"
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RANDOM_ID=$(openssl rand -hex 4)
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handle_error() { echo "ERROR on line $1"; trap - ERR; cleanup; exit 1; }; trap 'handle_error $LINENO' ERR
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cleanup() { echo ""; echo "Cleaning up..."; [ -n "$SERVER_ID" ] && aws transfer delete-server --server-id "$SERVER_ID" 2>/dev/null && echo " Deleted server (takes ~1 min)"; rm -rf "$WORK_DIR"; echo "Done."; }
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echo "Step 1: Creating SFTP server"
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SERVER_ID=$(aws transfer create-server --protocols SFTP --endpoint-type PUBLIC --identity-provider-type SERVICE_MANAGED --query 'ServerId' --output text)
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echo " Server ID: $SERVER_ID"
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echo "Step 2: Waiting for server..."
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for i in $(seq 1 20); do STATUS=$(aws transfer describe-server --server-id "$SERVER_ID" --query 'Server.State' --output text); echo " $STATUS"; [ "$STATUS" = "ONLINE" ] && break; sleep 10; done
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echo "Step 3: Server details"
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aws transfer describe-server --server-id "$SERVER_ID" --query 'Server.{Id:ServerId,State:State,Endpoint:EndpointDetails.AddressAllocationIds,Protocols:Protocols}' --output table
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echo "Step 4: Listing servers"
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aws transfer list-servers --query 'Servers[:3].{Id:ServerId,State:State,Protocols:Protocols}' --output table
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echo ""; echo "Tutorial complete."
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echo "Note: Transfer Family servers incur hourly charges (~\$0.30/hr). Clean up promptly."
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echo "Do you want to clean up? (y/n): "; read -r CHOICE; [[ "$CHOICE" =~ ^[Yy]$ ]] && cleanup

‎tuts/144-aws-datasync-gs/aws-datasync-gs.sh‎

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#!/bin/bash
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WORK_DIR=$(mktemp -d); exec > >(tee -a "$WORK_DIR/datasync.log") 2>&1
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REGION=${AWS_DEFAULT_REGION:-$(aws configure get region 2>/dev/null)}; [ -z "$REGION" ] && echo "ERROR: No region" && exit 1; export AWS_DEFAULT_REGION="$REGION"; echo "Region: $REGION"
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echo "Step 1: Listing agents"
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aws datasync list-agents --query 'Agents[:5].{Arn:AgentArn,Name:Name,Status:Status}' --output table 2>/dev/null || echo " No agents configured"
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echo "Step 2: Listing locations"
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aws datasync list-locations --query 'Locations[:5].{Uri:LocationUri,Arn:LocationArn}' --output table 2>/dev/null || echo " No locations configured"
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echo "Step 3: Listing tasks"
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aws datasync list-tasks --query 'Tasks[:5].{Name:Name,Status:Status,Arn:TaskArn}' --output table 2>/dev/null || echo " No tasks configured"
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echo ""; echo "Tutorial complete. DataSync requires an agent (on-premises or EC2) for data transfer."
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echo "No resources created — this tutorial shows the DataSync API structure."
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rm -rf "$WORK_DIR"

‎tuts/145-aws-globalaccelerator-gs/aws-globalaccelerator-gs.sh‎

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#!/bin/bash
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WORK_DIR=$(mktemp -d); exec > >(tee -a "$WORK_DIR/ga.log") 2>&1
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export AWS_DEFAULT_REGION=us-west-2; echo "Region: us-west-2 (Global Accelerator)"
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RANDOM_ID=$(openssl rand -hex 4); GA_NAME="tut-ga-${RANDOM_ID}"
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handle_error() { echo "ERROR on line $1"; trap - ERR; cleanup; exit 1; }; trap 'handle_error $LINENO' ERR
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cleanup() { echo ""; echo "Cleaning up..."; [ -n "$GA_ARN" ] && { aws globalaccelerator update-accelerator --accelerator-arn "$GA_ARN" --no-enabled 2>/dev/null; sleep 5; aws globalaccelerator delete-accelerator --accelerator-arn "$GA_ARN" 2>/dev/null && echo " Deleted accelerator"; }; rm -rf "$WORK_DIR"; echo "Done."; }
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echo "Step 1: Creating accelerator: $GA_NAME"
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GA_ARN=$(aws globalaccelerator create-accelerator --name "$GA_NAME" --query 'Accelerator.AcceleratorArn' --output text)
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echo " ARN: $GA_ARN"
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echo "Step 2: Waiting for deployment..."
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for i in $(seq 1 20); do STATUS=$(aws globalaccelerator describe-accelerator --accelerator-arn "$GA_ARN" --query 'Accelerator.Status' --output text); echo " $STATUS"; [ "$STATUS" = "DEPLOYED" ] && break; sleep 10; done
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echo "Step 3: Accelerator details"
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aws globalaccelerator describe-accelerator --accelerator-arn "$GA_ARN" --query 'Accelerator.{Name:Name,Status:Status,DNS:DnsName,IPs:IpSets[0].IpAddresses}' --output table
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echo "Step 4: Listing accelerators"
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aws globalaccelerator list-accelerators --query 'Accelerators[?starts_with(Name, `tut-`)].{Name:Name,Status:Status}' --output table
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echo ""; echo "Tutorial complete."
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echo "Note: Global Accelerator incurs hourly charges. Clean up promptly."
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echo "Do you want to clean up? (y/n): "; read -r CHOICE; [[ "$CHOICE" =~ ^[Yy]$ ]] && cleanup

‎tuts/158-vpc-endpoints/vpc-endpoints.sh‎

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#!/bin/bash
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WORK_DIR=$(mktemp -d); exec > >(tee -a "$WORK_DIR/vpc-ep.log") 2>&1
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REGION=${AWS_DEFAULT_REGION:-$(aws configure get region 2>/dev/null)}; [ -z "$REGION" ] && echo "ERROR: No region" && exit 1; export AWS_DEFAULT_REGION="$REGION"; echo "Region: $REGION"
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RANDOM_ID=$(openssl rand -hex 4)
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VPC_ID=$(aws ec2 describe-vpcs --filters "Name=isDefault,Values=true" --query 'Vpcs[0].VpcId' --output text)
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handle_error() { echo "ERROR on line $1"; trap - ERR; cleanup; exit 1; }; trap 'handle_error $LINENO' ERR
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cleanup() { echo ""; echo "Cleaning up..."; [ -n "$EP_ID" ] && aws ec2 delete-vpc-endpoints --vpc-endpoint-ids "$EP_ID" > /dev/null 2>&1 && echo " Deleted endpoint"; rm -rf "$WORK_DIR"; echo "Done."; }
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echo "Step 1: Listing available VPC endpoint services"
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aws ec2 describe-vpc-endpoint-services --query 'ServiceNames[:10]' --output table
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echo "Step 2: Creating a gateway endpoint (S3)"
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RT_ID=$(aws ec2 describe-route-tables --filters "Name=vpc-id,Values=$VPC_ID" --query 'RouteTables[0].RouteTableId' --output text)
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EP_ID=$(aws ec2 create-vpc-endpoint --vpc-id "$VPC_ID" --service-name "com.amazonaws.${REGION}.s3" --route-table-ids "$RT_ID" --query 'VpcEndpoint.VpcEndpointId' --output text)
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echo " Endpoint: $EP_ID"
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echo "Step 3: Describing endpoint"
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aws ec2 describe-vpc-endpoints --vpc-endpoint-ids "$EP_ID" --query 'VpcEndpoints[0].{Id:VpcEndpointId,Service:ServiceName,State:State,Type:VpcEndpointType}' --output table
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echo "Step 4: Listing endpoints"
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aws ec2 describe-vpc-endpoints --filters "Name=vpc-id,Values=$VPC_ID" --query 'VpcEndpoints[].{Id:VpcEndpointId,Service:ServiceName,Type:VpcEndpointType}' --output table
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echo ""; echo "Tutorial complete."
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echo "Do you want to clean up? (y/n): "; read -r CHOICE; [[ "$CHOICE" =~ ^[Yy]$ ]] && cleanup

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