ecs-services.sh

gistfile1.txt

#!/bin/bash

# Fail early if AWS credentials are missing or invalid
if ! aws sts get-caller-identity >/dev/null 2>&1; then
  echo "❌ AWS credentials not found or invalid. Please configure them using 'aws configure' or your SSO/profile setup."
  exit 1
fi

echo "Fetching ECS clusters and services..."

# Arrays
SERVICE_LIST=()
CLUSTER_LIST=()

# Gather all services and remember which cluster they belong to
for CLUSTER in $(aws ecs list-clusters --query 'clusterArns' --output text); do
  SERVICES=$(aws ecs list-services --cluster "$CLUSTER" --query 'serviceArns' --output text)
  for SERVICE in $SERVICES; do
    SERVICE_LIST+=("$SERVICE")
    CLUSTER_LIST+=("$CLUSTER")
  done
done

# Show menu
echo ""
echo "Available ECS services:"
for i in "${!SERVICE_LIST[@]}"; do
  printf "%3d) %s\n" "$i" "${SERVICE_LIST[$i]}"
done

echo ""
read -p "Enter the number of the service you want to inspect: " SELECTION

SELECTED_SERVICE="${SERVICE_LIST[$SELECTION]}"
SELECTED_CLUSTER="${CLUSTER_LIST[$SELECTION]}"

if [[ -z "$SELECTED_SERVICE" || -z "$SELECTED_CLUSTER" ]]; then
  echo "Invalid selection."
  exit 1
fi

echo ""
echo "Selected service: $SELECTED_SERVICE"
echo "Cluster: $SELECTED_CLUSTER"

# Get the first running task
TASK_ARN=$(aws ecs list-tasks --cluster "$SELECTED_CLUSTER" --service-name "$SELECTED_SERVICE" \
  --desired-status RUNNING --query 'taskArns[0]' --output text)

if [[ "$TASK_ARN" == "None" ]]; then
  echo "No running tasks found for this service."
  exit 1
fi

# Get ENI ID
ENI_ID=$(aws ecs describe-tasks --cluster "$SELECTED_CLUSTER" --tasks "$TASK_ARN" \
  --query 'tasks[0].attachments[0].details[?name==`networkInterfaceId`].value' --output text)

# Get IP
PRIVATE_IP=$(aws ec2 describe-network-interfaces --network-interface-ids "$ENI_ID" \
  --query 'NetworkInterfaces[0].PrivateIpAddress' --output text)

echo ""
echo "Private IP of the first running task: $PRIVATE_IP"