Rabattkarte / linkerd-demo

Service Mesh demo with Linkerd Emojivoto demo app

Requirements

• kubectl version v1.24.x
• minikube version v1.26.1
  • with configured docker driver
• linkerd CLI version stable-2.11.5

Configration options

Export one of the following environment variables to configure the scripts. Make sure to always use the same set of variables.

Variable name	Default value	Description
MK_PROFILE_NAME	linkerd	The name of the minikube profile/cluster

emojivoto topology

➡️ image taken from: BuoyantIO/emojivoto

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🐣 Setup the minikube cluster with Linkerd

1. Start Docker.
2. Ensure that minikube is configured to use the Docker driver.
3. Execute 00_setup_cluster_and_linkerd.sh to spin up a minikube cluster/profile with Linkerd and the Emojivoto demo app installed.

📮 Deploy the bare emojivoto app

FYI: This script can be re-run infinitely.

1. Execute 01_install_emojivoto.sh.
2. After that expose the app.

🔗 Mesh the emojivoto app

FYI: This script can be re-run infinitely.

1. Execute 02_mesh_emojivoto.sh.
2. After that expose the app.

🌐 Expose the emojivoto app and forward the viz dashboard

1. Start a new terminal.
2. Execute 10_run_dashboard_and_app.sh.
3. Access the Linkerd dashboard and the demo app via the printed URLs.
4. Kill the terminal to stop the forwards.

♻️ Clean-up

1. Ensure the right variables are exported.
2. Execute 90_delete_minikube_cluster.sh.
3. Your cluster should be gone.

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📋 References

• minikube documentation
• Linkerd documentation
• emojivoto application sources, GitHub
• CNCF Cloud Native Landscape (Service Mesh category)
• servicemesh.es, Service Mesh comparison
• How eBPF Streamlines the Service Mesh, article
• How eBPF will solve Service Mesh – Goodbye Sidecars, blog post
• Rabattkarte/linkerd-demo sources, this GitHub repository