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Cameron_Delano
F5 Employee
F5 Employee

Introduction:

For those of you following along with the F5 Hybrid Security Architectures series, welcome back!  If this is your first foray into the series and would like some background, have a look at the intro article.  This series is using the F5 Hybrid Security Architectures GitHub repo and CI/CD platform to deploy F5 based hybrid security solutions based on DevSecOps principles.  This repo is a community supported effort to provide not only a demo and workshop, but also a stepping stone for utilizing these practices in your own F5 deployments.  If you find any bugs or have any enhancement requests, open a issue or better yet contribute!

Here in this example solution, we will be using Terraform to deploy an AWS Elastic Kubernetes Service (EKS) cluster running the Arcadia Finance test web application serviced by F5 NGINX Ingress Controller for Kubernetes and protected by F5 NGINX App Protect WAF and API Protection.  We will supplement this with F5 Distributed Cloud Web App and API Protection to provide complimentary security at the edge.  Everything will be tied together using GitHub Actions for CI/CD and Terraform Cloud to maintain state.

Distributed Cloud WAF: Available for SaaS-based deployments in a distributed environment that reduces operational overhead with an optional fully managed service.

NIGNX App Protect WAF: A lightweight software security solution that provides high-performance, low-latency, and platform-agnostic deployments for modern, microservices-based applications and containers.

Architecture - UC-2-detail (2).jpeg

XC WAF + NGINX App Protect WAF Workflow

GitHub Repo: 

F5 Hybrid Security Architectures

Prerequisites:

Assets

  • xc: F5 Distributed Cloud WAAP
  • nap: NGINX Ingress Controller and NGINX App Protect WAF
  • infra: AWS Infrastructure (VPC, IGW, etc.)
  • eks: AWS Elastic Kubernetes Service
  • arcadia: Arcadia Finance test web application

Tools

  • Cloud Provider: AWS
  • Infrastructure as Code: Terraform
  • Infrastructure as Code State: Terraform Cloud
  • CI/CD: GitHub Actions

Terraform Cloud

Workspaces: Create a workspace for each asset in the workflow chosen

Workflow Workspaces
xc-nap infra, eks, nap, arcadia, xc

Workspace Sharing: Under the settings for each Workspace, set the Remote state sharing to share with each Workspace created.

Your Terraform Cloud console should resemble the following:

Screen Shot 2023-01-13 at 2.58.53 PM.png

Variable Set: Create a Variable Set with the following values.
IMPORTANT: Ensure sensitive values are appropriately marked.

  • AWS_ACCESS_KEY_ID: Your AWS Access Key ID - Environment Variable
  • AWS_SECRET_ACCESS_KEY: Your AWS Secret Access Key - Environment Variable
  • AWS_SESSION_TOKEN: Your AWS Session Token - Environment Variable
  • VOLT_API_P12_FILE: Your F5 XC API certificate. Set this to api.p12 - Environment Variable
  • VES_P12_PASSWORD: Set this to the password you supplied when creating your F5 XC API key - Environment Variable
  • nginx_jwt: Your NGINX Java Web Token associated with your NGINX license - Terraform Variable
  • ssh_key: Your ssh key for access to created compute assets - Terrraform Variable
  • admin_src_addr:  The source address of your administrative workstation - Terraform Variable
  • tf_cloud_organization: Your Terraform Cloud Organization name - Terraform Variable

Your Variable Set should resemble the following:

Screenshot 2023-06-26 at 1.59.11 PM.png

GitHub

Fork and Clone Repo: F5 Hybrid Security Architectures 

fork.png

Actions Secrets: Create the following GitHub Actions secrets in your forked repo

  • P12: The base64 encoded F5 XC API certificate
  • TF_API_TOKEN: Your Terraform Cloud API token
  • TF_CLOUD_ORGANIZATION: Your Terraform Cloud Organization
  • TF_CLOUD_WORKSPACE_workspace: Create for each workspace used in your workflow. EX: TF_CLOUD_WORKSPACE_NAP would be created with the value nap

Your GitHub Actions Secrets should resemble the following:

Screenshot 2023-06-26 at 2.28.46 PM.png

Terraform Local Variables:

Step 1: Rename infra/terraform.tfvars.examples to infra/terraform.tfvars and add the following data

project_prefix = "Your project identifier"
resource_owner = "You"
aws_region = "Your AWS region" ex: us-west-1
azs = "Your AWS availability zones" ex: ["us-west-1a", "us-west-1b"] 

#Set the following feature flags for this use case
nic = false
nap = true
bigip = false
bigip-cis = false

Step 2: Rename xc/terraform.tfvars.examples to xc/terraform.tfvars and add the following data

api_url = "https://<YOUR TENANT>.console.ves.volterra.io/api"
xc_tenant = "Your tenant id available in F5 XC Administration menu"
xc_namespace = "Your XC Namespace"
app_domain = "Your APP FQDN"

##Set the following feature flags for this usecase.

#XC WAF
xc_waf_blocking = true

#XC API Protection and Discovery
xc_api_disc = false
xc_api_pro = false
xc_api_spec = []

#XC Bot Defense
xc_bot_def = false

#XC DDoS
xc_ddos_pro = false

#XC Malicious User Detection
xc_mud = false

#XC AI/ML Settings for MUD, APIP - NOTE: Only set if using AI/ML settings from the shared namespace
xc_app_type = []
xc_multi_lb = false

Step 4: Commit your changes

commit.png

Deployment Workflow:

Step 1: Check out a branch for the deploy workflow using the following naming convention

  • xc-nap deployment branch: deploy-xc-nap

Screen Shot 2023-01-18 at 8.14.09 AM.png

Step 2: Push your deploy branch to the forked repo

Screen Shot 2023-01-18 at 8.37.02 AM.png

Step 3: Back in GitHub, navigate to the Actions tab of your forked repo and monitor your build

Screen Shot 2023-01-13 at 11.57.41 AM.png

Step 4: Once the pipeline completes, verify your assets were deployed to AWS and F5 XC

Screenshot 2023-06-06 at 8.06.02 AM.png

Step 5: Verify your app is available by navigating to the app domain FQDN you provided in the setup.
Note: The autocert process takes time. It may be 5 to 10 minutes before Let's Encrypt has provided the cert

Screen Shot 2023-01-18 at 9.22.06 AM.png

F5 XC Terraform Outputs:

Screen Shot 2023-01-18 at 8.57.44 AM.png

Destroy Workflow:

Step 1: From your main branch, check out a new branch for the destroy workflow using the following naming convention

  • xc-bigip destroy branch: destroy-xc-nap

Screen Shot 2023-01-18 at 8.14.48 AM.png

Step 2: Push your destroy branch to the forked repo

Screen Shot 2023-01-18 at 8.38.29 AM.png


Step 3: Back in GitHub, navigate to the Actions tab of your forked repo and monitor your workflow

Screen Shot 2023-01-13 at 11.57.41 AM.png

Screenshot 2023-06-06 at 8.06.32 AM.png

Step 4: Once the pipeline completes, verify your assets were destroyed

Screen Shot 2023-01-18 at 10.42.11 AM.png

Conclusion:

In this article we have shown how to utilize the F5 Hybrid Security Architectures GitHub repo and CI/CD pipeline to deploy a tiered security architecture utilizing F5 XC WAF and NGINX App Protect WAF to protect a test web application running in AWS EKS.  We also provided ingress into our EKS cluster with the NGINX Ingress Controller.  While the code and security policies deployed are generic and not inclusive of all use-cases, they can be used as a steppingstone for deploying F5 based hybrid architectures in your own environments. 

Workloads are increasingly deployed across multiple diverse environments and application architectures. Organizations need the ability to protect their essential applications regardless of deployment or architecture circumstances.  Equally important is the need to deploy these protections with the same flexibility and speed as the apps they protect.  With the F5 WAF portfolio, coupled with DevSecOps principles, organizations can deploy and maintain industry-leading security without sacrificing the time to value of their applications.  Not only can Edge and Shift Left principles exist together, but they can also work in harmony to provide a more effective security solution.

 

 

Article Series:

F5 Hybrid Security Architectures (Intro - One WAF Engine, Total Flexibility)
F5 Hybrid Security Architectures (Part 1 - F5's Distributed Cloud WAF and BIG-IP Advanced WAF)
F5 Hybrid Security Architectures (Part 2 - F5's Distributed Cloud WAF and NGINX App Protect WAF)
F5 Hybrid Security Architectures (Part 3 - F5 XC API Protection and NGINX Ingress Controller) 
F5 Hybrid Security Architectures (Part 4 - F5 XC BOT and DDoS Defense and BIG-IP Advanced WAF) 
F5 Hybrid Security Architectures (Part 5 - F5 XC, BIG-IP APM, CIS, and NGINX Ingress Controller) 

For further information or to get started:

  • F5 Distributed Cloud Platform (Link)
  • F5 Distributed Cloud WAAP Services (Link)
  • F5 Distributed Cloud WAAP YouTube series (Link)
  • F5 Distributed Cloud WAAP Get Started (Link)
Version history
Last update:
‎14-Sep-2023 14:02
Updated by:
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