Rails Conf k8s quick setup

.env

# https://github.com/ddollar/forego

ASSET_HOST=localhost:3000
APPLICATION_HOST=localhost:3000
BCRYPT_COST=12
PORT=3000
RACK_ENV=development
RACK_MINI_PROFILER=0
SECRET_KEY_BASE=development_secret
EXECJS_RUNTIME=Node
RAILS_MIN_THREADS=2
RAILS_MAX_THREADS=5

SMTP_ADDRESS=smtp.example.com
SMTP_DOMAIN=example.com
SMTP_PASSWORD=''
SMTP_USERNAME='email@example.com'

WEB_CONCURRENCY=1
WEBPACKER_DEV_SERVER_PORT=3035
WEBPACKER_DEV_SERVER_HOST=localhost
WEBPACKER_DEV_SERVER_PUBLIC=localhost:3035

REDIS_URL=redis://127.0.0.1:6379/15

DATABASE_URL=postgresql://postgres:password@127.0.0.1:5432/link

## These will be put in place in Lab 1
# postgresql://postgres@172.16.100.20:5432/link
# REDIS_URL=redis://172.16.100.20:6379/15

docker-compose.yml

services: 
  db:
    image: postgres
    ports:
      - "5432:5432"
    volumes:
      - ./tmp/db:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD: password
      POSTGRES_DB: link
  redis:
    image: redis
    ports:
      - 6379:6379

k8s-commands.sh

lab2.sh

# SETTING UP DATASTORES (PGSQL / REDIS)

## PGSQL

# generate database dump
brew services start postgresql 
rake db:setup
pg_dump link_development > ../deploying-rails-to-kubernetes/vagrant/data/link_development.sql

# ssh onto datastores vm
vagrant ssh workshop_datastores

sudo su - postgres

cd /vagrant/data
psql
create database link;
\c link
exit;
psql link < link_development.sql

exit

sudo vim /etc/postgresql/12/main/postgresql.conf on workshop_datastores

# add this
listen_addresses = '*'

sudo vim /etc/postgresql/12/main/pg_hba.conf

# add this without the comments
# host    all             all             172.16.100.1/32         trust
# host    all             all             172.16.100.10/32        trust

sudo service postgresql restart

## REDIS

sudo vim /etc/redis/redis.conf

# add bind and chang protected-mode to "noo"
bind 172.16.100.20
protected-mode no

sudo service redis restart

lab3.sh

## SETTING UP APPLICATION

## ssh onto k8s vm
vagrant ssh workshop_microk8s

sudo apt-get install docker.io
git clone https://github.com/base10/link

sudo docker build -t link-container . -f deploy/Dockerfile
sudo docker images

sudo docker save link-container:latest > ~/link-container.tar
microk8s ctr images ls | grep link
microk8s ctr image import ~/link-container.tar
microk8s ctr images ls | grep link

kubectl apply -f deploy/k8s/
kubectl get all --all-namespaces

kubectl scale --replicas=2 deployment.apps/link-app
kubectl scale --replicas=1 deployment.apps/link-app