muthukannanmuruga/guessthename

Guess the name of a child or pet to be named.

Guess the name

Guess the name of a child or pet to be named.

Prerequisites

Install

• DockerMachine - https://docs.docker.com/engine/install/
• DockerCompose - https://docs.docker.com/compose/install/
• Git - Ubuntu: sudo apt install git
• Npm - Ubuntu: sudo apt install npm

For Linux

• Minikube - https://minikube.sigs.k8s.io/docs/start/

For Mac

• Grep - brew install grep - PATH="/usr/local/opt/grep/libexec/gnubin:$PATH"
• Rancher Desktop - https://rancherdesktop.io/
• Ingress controller - https://docs.rancherdesktop.io/how-to-guides/setup-NGINX-Ingress-Controller/

Run on Minikube - Linux

• minikube start
• minikube addons enable ingress
• kubectl get pods -n ingress-nginx (verify you have ingress)
• ./k8s/deploy.sh
• kubectl get ingress
• Navigate to localhost:port in the browser

Run on Rancher Desktop - Mac

• Run Rancher Desktop
• kubectl config use-context rancher-desktop
• ./k8s/deploy.sh
• Port forward the ingress controller
• Navigate to localhost:port in the browser

Useful commands

Base64 Encode

• echo -n 'username' | base64
• echo -n 'password' | base64

Kubernetes dashboard in minikube

• minikube tunnel
• minikube service --url mongo-express-service
• minikube service mongo-express-service
• Note that without minikube tunnel, kubernetes would be showing external IP as "pending".
• https://minikube.sigs.k8s.io/docs/handbook/accessing/

Debugging services inside the cluster

Prerequisites

• Install Telepresence: https://www.telepresence.io/docs/latest/install/
• How to intercept: https://www.telepresence.io/docs/latest/howtos/intercepts/
• telepresence connect
• curl -ik https://kubernetes.default
• telepresence list (find the service you want to intercept)

Connect api

• telepresence intercept api --port 3000 --env-file ~/backend-service-intercept.env
• source ./scripts/telepresence-source-backend.sh
• From api run: npm run dev

Connect frontend

• telepresence intercept frontend --port 3001 --env-file ~/frontend-service-intercept.env
• From frontend run: npm run dev

Docker compose

• docker-compose up --build
• docker-compose --file docker-compose-explicit.yaml up

Build locally

See: https://minikube.sigs.k8s.io/docs/handbook/registry/ minikube addons enable registry docker run --rm -it --network=host alpine ash -c "apk add socat && socat TCP-LISTEN:5000,reuseaddr,fork TCP:$(minikube ip):5000" export REGISTRY_BASE_PATH=localhost:5000

Useful

• telepresence leave service-name
• Useful when intercept is not working: telepresence uninstall --everything
• Useful when intercept is not working: hard refresh
• Images are tagged with commit ID, add a commit before building and deploying
• Select aws profile: export AWS_PROFILE=user1

TODO

• Capture logging
• host: guessthename.com