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part-2.md

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2.01

kekalainen@Z97:~$ kubectl apply -f ./ping-pong-app/manifests/deployment.yaml -f ./main-app/manifests/deployment.yaml
deployment.apps/ping-pong-deployment configured
deployment.apps/hashgenerator-deployment configured
kekalainen@Z97:~$ curl localhost:8081/main
2021-07-01T18:19:46.425Z: rv4hpygfls
Ping / Pongs: 2

2.02

kekalainen@Z97:~$ kubectl delete deployment web-server-deployment
deployment.apps "web-server-deployment" deleted
kekalainen@Z97:~$ kubectl delete service web-server-service
service "web-server-service" deleted
kekalainen@Z97:~$ kubectl apply -f ./project-app/backend/manifests/deployment.yaml -f ./project-app/backend/manifests/service.yaml -f ./project-app/frontend/manifests/deployment.yaml -f ./project-app/frontend/manifests/service.yaml -f ./manifests/ingress.yaml
deployment.apps/backend-deployment created
service/backend-service created
deployment.apps/frontend-deployment created
service/frontend-service created
ingress.networking.k8s.io/ingress configured

2.03

kekalainen@Z97:~$ kubectl create namespace main
namespace/main created
kekalainen@Z97:~$ kubectl delete deployment hashgenerator-deployment ping-pong-deployment
deployment.apps "hashgenerator-deployment" deleted
deployment.apps "ping-pong-deployment" deleted
kekalainen@Z97:~$ kubectl delete service hashgenerator-service ping-pong-service
service "hashgenerator-service" deleted
service "ping-pong-service" deleted
kekalainen@Z97:~$ kubectl delete persistentvolumeclaim hashgenerator-persistent-volume-claim
persistentvolumeclaim "hashgenerator-persistent-volume-claim" deleted
kekalainen@Z97:~$ kubectl patch persistentvolume main-persistent-volume -p '{"spec":{"claimRef":null}}'
persistentvolume/main-persistent-volume patched
kekalainen@Z97:~$ kubectl apply -f ./main-app/manifests/persistent-volume-claim.yaml -f ./main-app/manifests/deployment.yaml -f ./main-app/manifests/service.yaml -f ./ping-pong-app/manifests/deployment.yaml -f ./ping-pong-app/manifests/service.yaml
persistentvolumeclaim/hashgenerator-persistent-volume-claim created
deployment.apps/hashgenerator-deployment created
service/hashgenerator-service created
deployment.apps/ping-pong-deployment created
service/ping-pong-service created
kekalainen@Z97:~$ kubectl apply -f ./manifests/ingress.yaml 
ingress.networking.k8s.io/ingress configured
ingress.networking.k8s.io/ingress created

2.04

kekalainen@Z97:~$ kubectl create namespace project
namespace/project created
kekalainen@Z97:~$ kubectl delete deployment backend-deployment frontend-deployment
deployment.apps "backend-deployment" deleted
deployment.apps "frontend-deployment" deleted
kekalainen@Z97:~$ kubectl delete service backend-service frontend-service
service "backend-service" deleted
service "frontend-service" deleted
kekalainen@Z97:~$ kubectl delete ingress ingress
ingress.networking.k8s.io "ingress" deleted
kekalainen@Z97:~$ kubectl apply -f ./project-app/backend/manifests/deployment.yaml -f ./project-app/backend/manifests/service.yaml -f ./project-app/frontend/manifests/deployment.yaml -f ./project-app/frontend/manifests/service.yaml 
deployment.apps/backend-deployment created
service/backend-service created
deployment.apps/frontend-deployment created
service/frontend-service created
kekalainen@Z97:~$ kubectl apply -f ./manifests/ingress.yaml 
ingress.networking.k8s.io/ingress created
ingress.networking.k8s.io/ingress unchanged

2.05

kekalainen@Z97:~$ kubectl apply -f https://github.com/bitnami-labs/sealed-secrets/releases/download/v0.16.0/controller.yamler.yaml
Warning: rbac.authorization.k8s.io/v1beta1 Role is deprecated in v1.17+, unavailable in v1.22+; use rbac.authorization.k8s.io/v1 Role
role.rbac.authorization.k8s.io/sealed-secrets-service-proxier created
role.rbac.authorization.k8s.io/sealed-secrets-key-admin created
service/sealed-secrets-controller created
Warning: rbac.authorization.k8s.io/v1beta1 RoleBinding is deprecated in v1.17+, unavailable in v1.22+; use rbac.authorization.k8s.io/v1 RoleBinding
rolebinding.rbac.authorization.k8s.io/sealed-secrets-service-proxier created
customresourcedefinition.apiextensions.k8s.io/sealedsecrets.bitnami.com created
rolebinding.rbac.authorization.k8s.io/sealed-secrets-controller created
Warning: rbac.authorization.k8s.io/v1beta1 ClusterRoleBinding is deprecated in v1.17+, unavailable in v1.22+; use rbac.authorization.k8s.io/v1 ClusterRoleBinding
clusterrolebinding.rbac.authorization.k8s.io/sealed-secrets-controller created
Warning: rbac.authorization.k8s.io/v1beta1 ClusterRole is deprecated in v1.17+, unavailable in v1.22+; use rbac.authorization.k8s.io/v1 ClusterRole
clusterrole.rbac.authorization.k8s.io/secrets-unsealer created
serviceaccount/sealed-secrets-controller created
deployment.apps/sealed-secrets-controller created
kekalainen@Z97:~$ wget https://github.com/bitnami-labs/sealed-secrets/releases/download/v0.16.0/kubeseal-linux-amd64 -O kubeseal
kekalainen@Z97:~$ sudo install -m 755 kubeseal /usr/local/bin/kubeseal
kekalainen@Z97:~$ rm ./kubeseal

2.06

kekalainen@Z97:~$ kubectl apply -f ./main-app/manifests/configmap.yaml -f ./main-app/manifests/deployment.yaml
configmap/hashgenerator-configmap created
deployment.apps/hashgenerator-deployment configured
kekalainen@Z97:~$ curl localhost:8081/main
Hello
2021-07-02T01:11:02.717Z: r8uv8dgnd1o
Ping / Pongs: 11

2.07

~/ping-pong-app/manifests/secret.yaml

apiVersion: v1
kind: Secret
metadata:
  namespace: main
  name: postgres-secret
data:
  POSTGRES_PASSWORD: <redacted>
kekalainen@Z97:~$ kubeseal -o yaml < ./ping-pong-app/manifests/secret.yaml > ./ping-pong-app/manifests/sealedsecret.yaml
kekalainen@Z97:~$ kubectl apply -f ./ping-pong-app/manifests/sealedsecret.yaml 
sealedsecret.bitnami.com/postgres-secret created
kekalainen@Z97:~$ kubectl apply -f ./ping-pong-app/manifests/database.yaml 
service/postgres-service created
statefulset.apps/postgres-statefulset created
kekalainen@Z97:~$ kubectl apply -f ./ping-pong-app/manifests/deployment.yaml 
deployment.apps/ping-pong-deployment configured

2.08

~/project-app/backend/manifests/secret.yaml

apiVersion: v1
kind: Secret
metadata:
  namespace: project
  name: postgres-secret
data:
  POSTGRES_PASSWORD: <redacted>
kekalainen@Z97:~$ kubeseal -o yaml < ./project-app/backend/manifests/secret.yaml > ./project-app/backend/manifests/postgres-sealedsecret.yaml 
kekalainen@Z97:~$ kubectl apply -f ./project-app/backend/manifests/postgres-sealedsecret.yaml -f ./project-app/backend/manifests/postgres.yaml
sealedsecret.bitnami.com/postgres-secret created
service/postgres-service created
statefulset.apps/postgres-statefulset created
kekalainen@Z97:~$ kubectl apply -f ./project-app/backend/manifests/deployment.yaml
deployment.apps/backend-deployment configured

2.09

kekalainen@Z97:~$ kubectl apply -f ./project-app/daily-todo/manifests/cronjob.yaml
cronjob.batch/daily-todo-cronjob created

2.10

kekalainen@Z97:~$ curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash
kekalainen@Z97:~$ helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
"prometheus-community" has been added to your repositories
kekalainen@Z97:~$ helm repo add stable https://charts.helm.sh/stable
"stable" has been added to your repositories
kekalainen@Z97:~$ kubectl create namespace prometheus
namespace/prometheus created
kekalainen@Z97:~$ helm install prometheus-community/kube-prometheus-stack --generate-name --namespace prometheus
kekalainen@Z97:~$ kubectl get pods -n prometheus | grep grafana
kube-prometheus-stack-1625247232-grafana-64b7f4ccb-gjnl2          2/2     Running   0          15m
kekalainen@Z97:~$ kubectl -n prometheus port-forward kube-prometheus-stack-1625247232-grafana-64b7f4ccb-gjnl2 3000
Forwarding from 127.0.0.1:3000 -> 3000
Forwarding from [::1]:3000 -> 3000
Handling connection for 3000
kekalainen@Z97:~$ helm repo add loki https://grafana.github.io/loki/charts
"loki" has been added to your repositories
kekalainen@Z97:~$ kubectl create namespace loki-stack
namespace/loki-stack created
kekalainen@Z97:~$ helm upgrade --install loki --namespace=loki-stack loki/loki-stack
kekalainen@Z97:~$ kubectl apply -f ./project-app/backend/manifests/deployment.yaml 
deployment.apps/backend-deployment configured
kekalainen@Z97:~$ curl 'http://localhost:8081/api/' -H 'Content-Type: application/json' --data-raw '{"query":"mutation {createTodo(content: \"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus imperdiet sapien a nunc tincidunt volutpat. Sed feugiat libero non consequat hendrerit. Curabitur euismod odio ex, ac sagittis augue convallis sed.\") {content}}"}' --compressed
{"errors":[{"message":"value too long for type character varying(140)","locations":[{"line":1,"column":11}],"path":["createTodo"]}],"data":{"createTodo":null}}

Grafana Loki log:

2021-07-03 01:08:37	2021-07-02T22:08:36.8383001Z stdout F 2021-07-02T22:08:36.838Z: {
2021-07-03 01:08:37	2021-07-02T22:08:36.8383472Z stdout F   method: 'POST',
2021-07-03 01:08:37	2021-07-02T22:08:36.8383543Z stdout F   path: '/api/',
2021-07-03 01:08:37	2021-07-02T22:08:36.8383583Z stdout F   query: {},
2021-07-03 01:08:37	2021-07-02T22:08:36.8383621Z stdout F   body: {
2021-07-03 01:08:37	2021-07-02T22:08:36.8383671Z stdout F     query: 'mutation {createTodo(content: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus imperdiet sapien a nunc tincidunt volutpat. Sed feugiat libero non consequat hendrerit. Curabitur euismod odio ex, ac sagittis augue convallis sed.") {content}}'
2021-07-03 01:08:37	2021-07-02T22:08:36.8383729Z stdout F   }
2021-07-03 01:08:37	2021-07-02T22:08:36.8383872Z stdout F }