diff --git a/challenge_3/README.md b/challenge_3/README.md
new file mode 100644
index 0000000..b31a87d
--- /dev/null
+++ b/challenge_3/README.md
@@ -0,0 +1,23 @@
+# Challenge 1
+
+## Instructions
+
+A Web application has been reported by a customer as broken and this has been escalated to the team. You're job is to investigate, troubleshoot and resolve the problem, returning the web app to normal service.
+
+You will be provided with an individual url for the site.
+
+[source code](./trubble/trubble.js), [documentation](./trubble/README.md) and [deployment code](./trubble/ansible/deploy.yml) is in the [trubble directory](./trubble/)
+
+1. in advance, please generate a new, unique SSH keypair and send us the **public** key. You may follow [these](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent#generating-a-new-ssh-key) instructions.
+
+2. You will recieve a url from us.
+
+3. Using SSH log in to the instance the web app is hosted on (the address is the same as the url the username is `ubuntu`).
+
+4. Document your troubleshooting process while you restore normal operation.
+
+5. Provide a permanent solution or work-around to the issue.
+
+## Solution Submission
+
+Please host your solution as a **private** repository and invite your interviewer as a collaborator.
\ No newline at end of file
diff --git a/challenge_3/trubble/.gitignore b/challenge_3/trubble/.gitignore
new file mode 100644
index 0000000..82ccb66
--- /dev/null
+++ b/challenge_3/trubble/.gitignore
@@ -0,0 +1,170 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# Crash log files
+crash.log
+crash.*.log
+
+# Exclude all .tfvars files, which are likely to contain sensitive data, such as
+# password, private keys, and other secrets. These should not be part of version 
+# control as they are data points which are potentially sensitive and subject 
+# to change depending on the environment.
+*.tfvars
+*.tfvars.json
+
+# Ignore override files as they are usually used to override resources locally and so
+# are not checked in
+override.tf
+override.tf.json
+*_override.tf
+*_override.tf.json
+
+# Include override files you do wish to add to version control using negated pattern
+# !example_override.tf
+
+# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
+# example: *tfplan*
+
+# Ignore CLI configuration files
+.terraformrc
+terraform.rc
+
+# Ansible retry files
+*.retry
+
+dist
\ No newline at end of file
diff --git a/challenge_3/trubble/.node-version b/challenge_3/trubble/.node-version
new file mode 100644
index 0000000..7b768e0
--- /dev/null
+++ b/challenge_3/trubble/.node-version
@@ -0,0 +1 @@
+14.17.6
\ No newline at end of file
diff --git a/challenge_3/trubble/README.md b/challenge_3/trubble/README.md
new file mode 100644
index 0000000..07861b0
--- /dev/null
+++ b/challenge_3/trubble/README.md
@@ -0,0 +1,88 @@
+# Trubble
+
+A web application built using Node.js and Express. It serves a simple web page at the root URL. There is only a single route `/` which searches for a random entity from [pokeapi](https://pokeapi.co/) and presents the encounter as plain text.
+
+## Prerequisites
+
+Before running the app, make sure you have the following installed:
+
+- Node.js version 14 (https://nodejs.org/en/download)
+- NPM (Node Package Manager)
+
+## Configuration
+
+The web app can be configured using environment variables. Create a `.env` file in the root directory of the project with the following variables:
+- `NODE_ENV` (optional): The environment the app will run in.
+- `PORT` (optional): The port number the app will listen on. Defaults to `3000`.
+- `IMPORTANT_VALUE` (required): A boolean value that must be set to `true` for the app to run. If this value is not set or is set to anything other than `true`, the app will log an error message and exit.
+
+## Logging
+
+The application will log to an `app.log` file in `logs` directory.
+In production logging will also be handled by systemd and will log to `/var/logs/syslog`. check the below systemd file for details.
+
+## Running the App in Development
+
+To run the app, follow these steps:
+
+1. Install dependencies by running `npm install`.
+2. Start the app by running `npm start`.
+3. Access the app by navigating to `http://localhost:3000` (or whichever port you specified in the `PORT` environment variable).
+
+## Testing
+
+Open a web browser and navigate to `http://localhost:3000/`.
+
+## Building the app for production
+
+1. Install dependencies by running `npm install`.
+2. Build the application with `npm run build`
+
+## Installing the app in Production
+
+Creation of the instance, install and managment of the application is by ansible. the playbook is in the [ansible directory](./ansible/deploy.yml).
+Instructions on how to use the ansible playbook can be found in the [ansible directory](./ansible/README.md).
+Ansible should be used to ensure the application is installed and configured correctly.
+
+The [playbook](./ansible/deploy.yml) reads as the documentation however the install steps can be summarised as:
+
+1. Ensure the App is built in the `dist` directory.
+1. Create a new Linux instance.
+2. Ensure nodejs is installed on the system.
+3. Ensure nginx is installed and configured correctly.
+4. Copy the contents of the local `dist` directory to the remote machine at the `/opt/` directory
+5. Use systemd (example below) to keep the app running
+
+
+## Systemd Unit File
+
+To run the app as a systemd service on Linux, create a file as a root user `/etc/systemd/system/trubble.service` with the following content:
+
+```
+[Unit]
+Description=trubble
+After=network.target
+
+[Service]
+Environment="NODE_ENV=production"
+User=root
+WorkingDirectory=/opt
+ExecStart=/usr/bin/node index.js
+Restart=always
+StandardOutput=syslog
+StandardError=syslog
+SyslogIdentifier=trubble
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Then run the following commands:
+
+```
+sudo systemctl daemon-reload
+sudo systemctl enable trubble
+sudo systemctl start trubble
+```
+
+The app will now start automatically on boot and can be managed using the `systemctl` command.
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/README.md b/challenge_3/trubble/ansible/README.md
new file mode 100644
index 0000000..468276e
--- /dev/null
+++ b/challenge_3/trubble/ansible/README.md
@@ -0,0 +1,38 @@
+# Deploy Trubble
+
+A playbook to create an AWS EC2 instance and install The trubble nodejs application.
+
+## Prerequisites
+
+- python 3.9+
+- python pip
+
+## Setup
+
+Install dependencies
+
+```
+python3 -m pip install -r requirements.txt
+ansible-galaxy install -f -r requirements.yml
+ansible-galaxy collection install -f -r requirements.yml
+```
+
+Setup AWS credentials
+
+```
+export AWS_ACCESS_KEY_ID="xxxxx"
+export AWS_SECRET_ACCESS_KEY="xxxxx"
+export AWS_SESSION_TOKEN="xxxxx"
+```
+
+To only manage existing running application instances run:
+
+ansible-playbook deploy.yml  --extra-vars='\{"users": \[user1,user2,user3\]\}' --skip-tags='create'
+
+where `users` var is an array of users to create instances for.
+
+Run the full playbook and create a new instance:
+
+```
+ansible-playbook deploy.yml  --extra-vars='\{"users": \[user1,user2,user3\]\}'
+```
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/ansible.cfg b/challenge_3/trubble/ansible/ansible.cfg
new file mode 100644
index 0000000..56a757d
--- /dev/null
+++ b/challenge_3/trubble/ansible/ansible.cfg
@@ -0,0 +1,7 @@
+
+[defaults]
+ansible_python_interpreter=/usr/bin/python3
+inventory=aws_ec2.yaml
+
+[inventory]
+enable_plugins = aws_ec2
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/aws_ec2.yaml b/challenge_3/trubble/ansible/aws_ec2.yaml
new file mode 100644
index 0000000..6731e4c
--- /dev/null
+++ b/challenge_3/trubble/ansible/aws_ec2.yaml
@@ -0,0 +1,9 @@
+---
+plugin: aws_ec2
+filters:
+  tag:Env: dev
+keyed_groups:
+  - key: tags
+    prefix: tag
+regions:
+  - us-east-1 
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/deploy.yml b/challenge_3/trubble/ansible/deploy.yml
new file mode 100644
index 0000000..40d32f1
--- /dev/null
+++ b/challenge_3/trubble/ansible/deploy.yml
@@ -0,0 +1,122 @@
+---
+- name: Deploy web app
+  hosts: localhost
+  become: false
+
+  vars:
+    users:
+      - user1
+
+  tasks:
+  
+    - name: Lookup existing AWS subnet id
+      ec2_vpc_subnet_info:
+        filters:
+          "tag:Name": "devops-challenge-public-us-east-1a"
+      register: subnet_info
+
+    # ubuntu 16.04 (Xenial Xerus)
+    - name: Create the EC2 instance
+      ec2_instance:
+        key_name: "{{ item }}"
+        instance_type: t3.micro
+        image_id: ami-0b0ea68c435eb488d
+        wait: true
+        vpc_subnet_id: "{{ subnet_info.subnets[0].id }}"
+        security_group: devops-challenge-allow-http
+        network:
+          assign_public_ip: true
+        tags:
+          Env: "dev"
+          Application: "devops-challenge"
+          Name: "devops-challenge-{{ item }}"
+      register: ec2_instance
+      loop: "{{ users }}"
+
+    - meta: refresh_inventory
+
+- name: Deploy web app
+  hosts: tag_Application_devops_challenge
+  become: true
+  gather_facts: true
+  user: ubuntu
+  tags:
+    - config
+
+  pre_tasks:
+    - name: Wait 600 seconds for target connection to become reachable/usable
+      ansible.builtin.wait_for_connection:
+        timeout: 600
+
+    - name: Wait for cloud-init to complete
+      shell: cloud-init status
+      register: cloud_init_install
+      retries: 60
+      delay: 5
+      until: 'cloud_init_install.stdout == "status: done"'
+      tags:
+        - molecule-notest
+
+    - name: Update the apt cache
+      apt:
+        update_cache: true
+        force_apt_get: true
+        cache_valid_time: 3600
+      become: true
+
+
+  roles:
+    - role: geerlingguy.nodejs
+      vars:
+        nodejs_version: "14.x"
+
+  post_tasks:
+
+    - name: Install an NGINX web server
+      yum:
+        name: nginx
+        state: present
+
+    - name: Configure NGINX to front the web app
+      copy:
+        src: nginx.conf
+        dest: /etc/nginx/nginx.conf
+    
+    - name: copy NGINX error page
+      copy:
+        src: error.html
+        dest: /usr/share/nginx/html/error.html
+    
+    - name: Enable nginx and reload
+      systemd:
+        name: nginx
+        enabled: true
+        daemon_reload: true
+        state: restarted
+
+    - name: Copy web app files
+      copy:
+        src: "{{ item }}"
+        dest: /opt/
+      loop:
+        - ../dist/index.js
+        - ../dist/package.json
+
+    # TODO: web app Configuration management not implemented
+
+    - name: Add systemd unit file for web app
+      copy:
+        src: trubble.service
+        dest: /etc/systemd/system/
+      tags:
+       - systemd
+    
+    - name: Enable and start the web app
+      systemd:
+        name: trubble
+        enabled: true
+        daemon_reload: true
+        state: started
+      tags:
+        - start_app
+        - systemd
diff --git a/challenge_3/trubble/ansible/files/error.html b/challenge_3/trubble/ansible/files/error.html
new file mode 100644
index 0000000..13e27b0
--- /dev/null
+++ b/challenge_3/trubble/ansible/files/error.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>I am very broken</title>
+  </head>
+  <body>
+    <h1>I am very broken</h1>
+    <img src="https://live.staticflickr.com/7051/27218483031_1b8c0b427c_c.jpg" alt="Sad Computer">
+  </body>
+</html>
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/files/nginx.conf b/challenge_3/trubble/ansible/files/nginx.conf
new file mode 100644
index 0000000..3d46e4f
--- /dev/null
+++ b/challenge_3/trubble/ansible/files/nginx.conf
@@ -0,0 +1,30 @@
+user www-data;
+worker_processes auto;
+pid /run/nginx.pid;
+events {
+  worker_connections  1024;
+}
+http {
+server {
+  listen 80;
+  server_name _;
+
+  location / {
+    proxy_pass http://localhost:3000;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+    # Set the maximum time to wait for a response from the upstream server
+    proxy_connect_timeout 5s;
+    proxy_read_timeout 10s;
+  }
+
+  # Serve the custom error page if the upstream server is unavailable
+  error_page 502 503 /error.html;
+  location = /error.html {
+    root /usr/share/nginx/html;
+    internal;
+  }
+}
+}
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/files/trubble.service b/challenge_3/trubble/ansible/files/trubble.service
new file mode 100644
index 0000000..02def39
--- /dev/null
+++ b/challenge_3/trubble/ansible/files/trubble.service
@@ -0,0 +1,16 @@
+[Unit]
+Description=trubble
+After=network.target
+
+[Service]
+Environment="NODE_ENV=production"
+User=root
+WorkingDirectory=/opt
+ExecStart=/usr/bin/node index.js
+Restart=always
+StandardOutput=syslog
+StandardError=syslog
+SyslogIdentifier=trubble
+
+[Install]
+WantedBy=multi-user.target
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/requirements.txt b/challenge_3/trubble/ansible/requirements.txt
new file mode 100644
index 0000000..6f62328
--- /dev/null
+++ b/challenge_3/trubble/ansible/requirements.txt
@@ -0,0 +1,4 @@
+molecule[docker]
+ansible-lint>=5,<6
+ansible==2.9.26
+boto3==1.18.46
\ No newline at end of file
diff --git a/challenge_3/trubble/ansible/requirements.yml b/challenge_3/trubble/ansible/requirements.yml
new file mode 100644
index 0000000..777a27c
--- /dev/null
+++ b/challenge_3/trubble/ansible/requirements.yml
@@ -0,0 +1,5 @@
+roles:
+  - name: geerlingguy.nodejs
+collections:
+  - name: amazon.aws
+  - name: community.general
\ No newline at end of file
diff --git a/challenge_3/trubble/bootstrap/infrastructure/terraform/.terraform.lock.hcl b/challenge_3/trubble/bootstrap/infrastructure/terraform/.terraform.lock.hcl
new file mode 100644
index 0000000..cb5f1be
--- /dev/null
+++ b/challenge_3/trubble/bootstrap/infrastructure/terraform/.terraform.lock.hcl
@@ -0,0 +1,25 @@
+# This file is maintained automatically by "terraform init".
+# Manual edits may be lost in future updates.
+
+provider "registry.terraform.io/hashicorp/aws" {
+  version     = "4.65.0"
+  constraints = ">= 4.35.0"
+  hashes = [
+    "h1:ZEdurVGkjkOZzhJijFTF+3djXZ9N4Js8Ss6tM43n3HA=",
+    "zh:0461b8dfc14e94971bfd12783cbd5a5574b9fcfc3694b6afaa8836f90b61c1f9",
+    "zh:24a27e7b1f6eb33e9da6f2ffaaa6bc48e933a24224c6572d6e588994e5c7130b",
+    "zh:2ca189d04573414bef4876c17ccb2b76f6e721e0450f6ab3700d94d7c04bec64",
+    "zh:3fb0654a527677231dab2140e9a55df3b90dba478b3db50001e21a045437a47a",
+    "zh:4918173d9c7d2735908622c17efd01746a046f0a571690afa7dd0866f22045f7",
+    "zh:491d259b15166f751076d2bdc443928ca63f6c0a83b02ea75fff8b4224662207",
+    "zh:4ff8e178f0656f04f88558c295a1d246b1bdcf5ad81d8b3b9ccceaeca2eb7fa8",
+    "zh:5e4eaf2855a740124f4bbe34ac4bd22c7f320aa3e91d9cef64396ad0a1571544",
+    "zh:65762c60c4bac2e0d55ed8c2877e455e84465cb12f0c885363a1b561cd4f5f07",
+    "zh:7c5e4f85eb5f70e6da2d64701dd5551f2bc334dbb9add76bfc6a2bea6acf4483",
+    "zh:90d32b238113528319d7a5fade97bd8ac9a8b654482fc9056478a43d2e297886",
+    "zh:9b12af85486a96aedd8d7984b0ff811a4b42e3d88dad1a3fb4c0b580d04fa425",
+    "zh:e6ed3299516a8fb2292af7e7e123d09817dfd8e039aaf35ad5a276f739668e88",
+    "zh:eb84fa96c63d836b3b4689835cb7c4487808dfd1ba7ddacf4d8c4c6ff65cdbef",
+    "zh:ff97d1498193c99c9c35afd9bfcdce011abf460ec041721727d6e542f7a3bedd",
+  ]
+}
diff --git a/challenge_3/trubble/bootstrap/infrastructure/terraform/README.md b/challenge_3/trubble/bootstrap/infrastructure/terraform/README.md
new file mode 100644
index 0000000..24c7e65
--- /dev/null
+++ b/challenge_3/trubble/bootstrap/infrastructure/terraform/README.md
@@ -0,0 +1,22 @@
+# Trubble infra bootstrap
+
+## internal use only
+
+Creates the base infra needed for the trubble instances:
+
+- A vpc with a public subnet and routes
+- an open security group for HTTP and SSH
+- ssh public keys for each user
+
+
+## Setup
+
+Setup AWS credentials
+
+```
+export AWS_ACCESS_KEY_ID="xxxxx"
+export AWS_SECRET_ACCESS_KEY="xxxxx"
+export AWS_SESSION_TOKEN="xxxxx"
+```
+
+add username, ssh public keys to the local variable `allowed_keys` in the [locals.tf file](./locals.tf)
diff --git a/challenge_3/trubble/bootstrap/infrastructure/terraform/config.tf b/challenge_3/trubble/bootstrap/infrastructure/terraform/config.tf
new file mode 100644
index 0000000..bf40ea2
--- /dev/null
+++ b/challenge_3/trubble/bootstrap/infrastructure/terraform/config.tf
@@ -0,0 +1,28 @@
+terraform {
+  backend "s3" {
+    region               = "us-east-1"
+    bucket               = "zestia-dev-terraform-state"
+    key                  = "terraform.tfstate"
+    dynamodb_table       = "zestia-dev-terraform-state-lock"
+    encrypt              = "true"
+    workspace_key_prefix = "devops-challenge"
+  }
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 4.0"
+    }
+  }
+}
+
+
+provider "aws" {
+  region                      = "us-east-1"
+
+  default_tags {
+    tags = {
+      Env                   = "dev"
+      Application           = "devops-challenge"
+    }
+  }
+}
\ No newline at end of file
diff --git a/challenge_3/trubble/bootstrap/infrastructure/terraform/locals.tf b/challenge_3/trubble/bootstrap/infrastructure/terraform/locals.tf
new file mode 100644
index 0000000..0bafe67
--- /dev/null
+++ b/challenge_3/trubble/bootstrap/infrastructure/terraform/locals.tf
@@ -0,0 +1,5 @@
+locals {
+  allowed_keys = {
+    user1 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGWcVfpqphsL3D3kujDSBmx48zVhPFd8mwAN1K9do0P1 user1@example.com"
+  }
+}
\ No newline at end of file
diff --git a/challenge_3/trubble/bootstrap/infrastructure/terraform/main.tf b/challenge_3/trubble/bootstrap/infrastructure/terraform/main.tf
new file mode 100644
index 0000000..5e40feb
--- /dev/null
+++ b/challenge_3/trubble/bootstrap/infrastructure/terraform/main.tf
@@ -0,0 +1,71 @@
+data "aws_availability_zones" "available" {}
+
+resource "aws_key_pair" "deployer" {
+  for_each = local.allowed_keys
+  key_name   = each.key
+  public_key = each.value
+}
+
+module "vpc" {
+  source = "terraform-aws-modules/vpc/aws"
+  name = "devops-challenge"
+
+  enable_nat_gateway  = false
+  create_database_subnet_group = false
+  enable_vpn_gateway = false
+  manage_default_vpc               = false
+  manage_default_security_group = false
+  manage_default_network_acl = false
+  manage_default_route_table = false
+
+  public_subnets  = ["10.0.101.0/24"]
+
+  azs             = [data.aws_availability_zones.available.names[0]]
+}
+
+
+resource "aws_security_group" "allow_http" {
+  name        = "devops-challenge-allow-http"
+  description = "Allow HTTP traffic"
+  vpc_id      = module.vpc.vpc_id
+
+  ingress {
+    description      = "HTTP"
+    from_port        = 80
+    to_port          = 80
+    protocol         = "tcp"
+    cidr_blocks      = ["0.0.0.0/0"]
+  }
+
+  ingress {
+    description      = "SSH"
+    from_port        = 22
+    to_port          = 22
+    protocol         = "tcp"
+    cidr_blocks      = ["0.0.0.0/0"]
+  }
+
+  egress {
+    from_port        = 0
+    to_port          = 0
+    protocol         = "-1"
+    cidr_blocks      = ["0.0.0.0/0"]
+    ipv6_cidr_blocks = ["::/0"]
+  }
+
+  tags = {
+    Name = "devops-challenge-allow-http"
+  }
+}
+
+output "vpc_id" {
+  value = module.vpc.vpc_id
+}
+
+output "subnet_id" {
+  value = module.vpc.public_subnets[0]
+}
+
+output "security_group_id" {
+  value = aws_security_group.allow_http.id
+}
\ No newline at end of file
diff --git a/challenge_3/trubble/dev.env b/challenge_3/trubble/dev.env
new file mode 100644
index 0000000..9e6ac67
--- /dev/null
+++ b/challenge_3/trubble/dev.env
@@ -0,0 +1,2 @@
+#PORT="3000"
+IMPORTANT_VALUE="true"
\ No newline at end of file
diff --git a/challenge_3/trubble/package-lock.json b/challenge_3/trubble/package-lock.json
new file mode 100644
index 0000000..f87026e
--- /dev/null
+++ b/challenge_3/trubble/package-lock.json
@@ -0,0 +1,670 @@
+{
+  "name": "trubble",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@colors/colors": {
+      "version": "1.5.0",
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+    },
+    "@dabh/diagnostics": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/@dabh/diagnostics/-/diagnostics-2.0.3.tgz",
+      "integrity": "sha512-hrlQOIi7hAfzsMqlGSFyVucrx38O+j6wiGOf//H2ecvIEqYN4ADBSS2iLMh5UFyDunCNniUIPk/q3riFv45xRA==",
+      "requires": {
+        "colorspace": "1.1.x",
+        "enabled": "2.0.x",
+        "kuler": "^2.0.0"
+      }
+    },
+    "@types/triple-beam": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@types/triple-beam/-/triple-beam-1.3.2.tgz",
+      "integrity": "sha512-txGIh+0eDFzKGC25zORnswy+br1Ha7hj5cMVwKIU7+s0U2AxxJru/jZSMU6OC9MJWP6+pc/hc6ZjyZShpsyY2g=="
+    },
+    "@vercel/ncc": {
+      "version": "0.36.1",
+      "resolved": "https://registry.npmjs.org/@vercel/ncc/-/ncc-0.36.1.tgz",
+      "integrity": "sha512-S4cL7Taa9yb5qbv+6wLgiKVZ03Qfkc4jGRuiUQMQ8HGBD5pcNRnHeYM33zBvJE4/zJGjJJ8GScB+WmTsn9mORw==",
+      "dev": true
+    },
+    "accepts": {
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+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
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+      "requires": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
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diff --git a/challenge_3/trubble/package.json b/challenge_3/trubble/package.json
new file mode 100644
index 0000000..9865808
--- /dev/null
+++ b/challenge_3/trubble/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "trubble",
+  "type": "module",
+  "version": "1.0.0",
+  "description": "",
+  "main": "trubble.js",
+  "scripts": {
+    "test": "echo \"Warning: no tests implemented\" && exit 1",
+    "build": "ncc build trubble.js -o dist",
+    "start": "node trubble.js"
+  },
+  "author": "zestia ltd",
+  "license": "MIT",
+  "dependencies": {
+    "dotenv": "^16.0.3",
+    "express": "^4.17.1",
+    "express-rate-limit": "^6.7.0",
+    "pokedex-promise-v2": "^4.1.1",
+    "winston": "^3.8.2"
+  },
+  "devDependencies": {
+    "@vercel/ncc": "^0.36.1"
+  }
+}
diff --git a/challenge_3/trubble/trubble.js b/challenge_3/trubble/trubble.js
new file mode 100644
index 0000000..d397715
--- /dev/null
+++ b/challenge_3/trubble/trubble.js
@@ -0,0 +1,96 @@
+import rateLimit from 'express-rate-limit'
+import express from 'express'
+import dotenv from 'dotenv'
+import * as winston from 'winston';
+import * as fs from 'fs';
+import * as path from 'path';
+import Pokedex from 'pokedex-promise-v2';
+
+// Load configuration variables from .env file
+const env = process.env.NODE_ENV || 'development'
+if (env === 'development') {
+    dotenv.config({ path: 'dev.env' });
+} else {
+    dotenv.config();
+}
+
+// setup the port
+
+const port = process.env.PORT || 3000
+
+// Create log directory if it doesn't exist
+const logDirectory = './logs';
+if (!fs.existsSync(logDirectory)) {
+    fs.mkdirSync(logDirectory);
+}
+
+// Create Winston logger
+const logger = winston.createLogger({
+    format: winston.format.combine(
+        winston.format.timestamp(),
+        winston.format.json()
+    ),
+    transports: [
+        new winston.transports.Console({
+            colorize: true
+        }),
+        new winston.transports.File({
+            filename: `${logDirectory}/app.log`,
+            level: 'info'
+        })
+    ],
+    exceptionHandlers: [
+        new winston.transports.File({
+            filename: `${logDirectory}/exceptions.log`
+        })
+    ],
+    exitOnError: false
+});
+
+
+const app = express();
+
+// Set up rate limiter
+const limiter = rateLimit({
+    windowMs: 1000, // 1 second
+    max: 10, // limit each IP to 10 requests per windowMs
+    handler: function (req, res, /*next*/) {
+        // Log an error when rate limit exceeded
+        logger.error('Rate limit exceeded for IP ' + req.ip);
+        res.status(429).send('Too many requests');
+    }
+});
+
+// Apply the rate limiter to all requests
+app.use(limiter);
+
+// Validate IMPORTANT_VALUE configuration variable
+if (!process.env.IMPORTANT_VALUE) {
+    logger.error('Config Error. The key IMPORTANT_VALUE is not set to true');
+    logger.end();
+    // give for logger to log
+    setTimeout(function () {
+        process.exit(1);
+    }, 1000)
+}
+
+// Define route for homepage
+app.get('/', (req, res) => {
+    const P = new Pokedex();
+    P.getPokemonsList()
+        .then((response) => {
+            const randomElement = response.results[Math.floor(Math.random() * response.results.length)];
+            logger.info('Searching...')
+            res.send(`Wild ${randomElement.name.toUpperCase()} appeared!`);
+            logger.info(`${randomElement.name.toUpperCase()} seen`)
+        })
+        .catch((error) => {
+            logger.error('There was an ERROR: ', error);
+        });
+});
+
+// Start server
+app.listen(port, () => {
+    logger.info(`Running in Environment ${env}`);
+    logger.info(`Server listening on port ${port}`);
+});