02-04-ketch.sh

##########################################
# Ketch                                  #
# How to Simplify Kubernetes Deployments #
# https://youtu.be/sMOIiTfGnj0           #
##########################################

#########
# Setup #
#########

# Requirements:
# - `ketch` CLI (https://github.com/shipa-corp/ketch/releases)
# - A Kubernetes cluster with Istio
# - Environment variable `ISTIO_HOST`

kubectl apply \
    --filename https://github.com/jetstack/cert-manager/releases/download/v1.0.3/cert-manager.yaml \
    --validate=false

echo "apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: le 
spec:
  acme:
    server: https://acme-v02.api.letsencrypt.org/directory
    privateKeySecretRef:
      name: my-account-key
    solvers:
    - http01:
       ingress:
         class: istio" \
    | kubectl apply --filename -

kubectl apply \
    --filename https://github.com/shipa-corp/ketch/releases/download/v0.2.0/ketch-controller.yaml

#######################
# Managing node pools #
#######################

ketch pool add staging \
    --namespace staging \
    --ingress-service-endpoint $ISTIO_HOST \
    --ingress-type istio

ketch pool add production \
    --namespace production \
    --ingress-service-endpoint $ISTIO_HOST \
    --ingress-type istio

ketch pool list

kubectl get namespaces

#########################
# Creating applications #
#########################

ketch app create devops-toolkit-staging \
    --pool staging

ketch app create devops-toolkit \
    --pool production

##########################
# Deploying applications #
##########################

ketch app deploy --help

ketch app deploy devops-toolkit-staging \
    --image vfarcic/devops-toolkit-series:2.9.10

ketch app list

ketch app info devops-toolkit-staging

kubectl --namespace staging get all

helm list -A

##################################################
# Scaling, upgrading, and promoting applications #
##################################################

ketch unit add 2 \
    --app devops-toolkit-staging

ketch app deploy devops-toolkit-staging \
    --image vfarcic/devops-toolkit-series:2.9.18

ketch app log devops-toolkit-staging

ketch app deploy devops-toolkit \
    --image vfarcic/devops-toolkit-series:2.9.18

#########################
# Removing applications #
#########################

ketch app remove devops-toolkit-staging

ketch app remove devops-toolkit

# Destroy the cluster