microservices project - practice
based on the freeCodeCamp Course "Microservice Architecture with Python & K8s"

email: msarch.dummy.2024@gmail.com

• install mysql and mongodb locally!!!
• run minikube and use minikube tunnel to connect
• build images directly in minikube and reference accordingly - minikube image build -t gateway -f Dockerfile . > image: library/gateway - and force local usage with imagePullPolicy: Never
• issuese with python + pylance + vsc? Dont create venv's per dir, but create it on the workspace level
• use mongosh: show databases - use mp3s - db.fs.files.find()
• download a short from yt and reduce to 10s, brew install yt-dlp

• describe minikube build setup
• remove venv directories, reduce to onee
• store seecret secretly
• explain deployment process

• install helm: brew install helm
• setup the repo: helm repo add bitnami https://charts.bitnami.com/bitnami && helm repo update
• prepare dir: mkdir -p mysql/manifests && cd mysql/manifests
• get values to configure mysql: helm show values bitnami/mysql >> helm-values.yaml
• create initdb.yaml from previous init.sql
• install chart with custom script: helm install mysql bitnami/mysql -f initdb.yaml
• validate sucessful init:

  MYSQL_ROOT_PASSWORD=$(kubectl get secret --namespace default mysql -o jsonpath="{.data.mysql-root-password}" | base64 -d)
  
  kubectl run mysql-client --rm --tty -i --restart='Never' --image  docker.io/bitnami/mysql:8.4.3-debian-12-r0 --namespace default --env MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASSWORD --command -- bash
  
  mysql -uroot -hmysql -p$MYSQL_ROOT_PASSWORD
  show databases;
  use auth; 
  show tables;
  select * from user;
  

• fix app to use other database

https://helm.sh/docs/topics/chart_repository/#github-pages-example

Another example Create login and register form

setup issues

• the non-root user that compares the credentials with the mysql db didnt have access: CREATE USER 'auth_user'@'%' IDENTIFIED BY 'Aauth123'; was set to @localhost, which only allows access from the same machine. After fixing this, i needed to remove the pvc.