Updated code for MySQL operator (#2)

* Updated code

.github/workflows/main.yml

@@ -8,15 +8,15 @@ jobs:
       - name: Install Terraform
         run: |
           cd /tmp
-          wget https://releases.hashicorp.com/terraform/0.13.4/terraform_0.13.4_linux_amd64.zip
-          unzip terraform_0.13.4_linux_amd64.zip
+          wget https://releases.hashicorp.com/terraform/0.13.5/terraform_0.13.5_linux_amd64.zip
+          unzip terraform_0.13.5_linux_amd64.zip
           sudo mv terraform /usr/local/bin
           terraform version
       - name: Install Helm
         run: |
           cd /tmp
-          wget https://get.helm.sh/helm-v3.3.4-linux-amd64.tar.gz
-          tar xvfz helm-v3.3.4-linux-amd64.tar.gz
+          wget https://get.helm.sh/helm-v3.4.1-linux-amd64.tar.gz
+          tar xvfz helm-v3.4.1-linux-amd64.tar.gz
           sudo mv linux-amd64/helm /usr/local/bin/helm
           helm version
       - name: Checkout source code
@@ -26,6 +26,9 @@ jobs:
           cd $GITHUB_WORKSPACE/helm/nvm
           helm lint
           helm template . > template
+          cd $GITHUB_WORKSPACE/helm/nvm-db
+          helm lint
+          helm template . > template
       - name: Lint Terraform
         run: |
           cd $GITHUB_WORKSPACE/terraform

.gitignore

@@ -3,3 +3,4 @@ terraform/terraform.tfstate
 terraform/terraform.tfstate.backup
 terraform/.terraform.tfstate.lock.info
 helm/nvm/template
+helm/nvm-db/template

.gitlab-ci.yml

@@ -20,16 +20,22 @@ lint-helm:
   artifacts:
     paths:
       - helm/nvm/template
+      - helm/nvm-db/template
     expire_in: "7 days"
   script:
-    - cd helm/nvm
+    - pushd helm/nvm
     - helm lint
     - helm template . > template
+    - popd
+    - pushd helm/nvm-db
+    - helm lint
+    - helm template . > template
+    - popd
 
 lint-terraform:
   stage: lint
   image: $REGISTRY_DOMAIN/chrisleekr/k8s-nodejs-vuejs-mysql-boilerplate:build
   script:
-    - cd terraform
+    - pushd terraform
     - terraform init
     - terraform validate

.vscode/settings.json

@@ -9,5 +9,18 @@
     ".git": true,
     "**/.DS_Store": true,
     "**/.vscode": true
-  }
+  },
+  "cSpell.words": [
+    "Autoscaler",
+    "Grafana",
+    "Kubernetes",
+    "Minikube",
+    "Presslabs",
+    "chrisleekr",
+    "containerised",
+    "kubectl",
+    "popd",
+    "pushd",
+    "vuejs"
+  ]
 }

README.md

@@ -1,15 +1,15 @@
-# Kubernetes for Node.js (REST API) + Vue.js (Frontend/Backend) + MySQL Boilerplate
+# Kubernetes sample project for Node.js (REST API) + Vue.js (Frontend/Backend) + MySQL Boilerplate
 
 This project demonstrates simple IaC (Infrastructure as Code) for [NVM boilerplate](https://github.com/chrisleekr/nodejs-vuejs-mysql-boilerplate) to Minikube.
 
-This is not for a production use.
+This is a Kubernetes sample project, not for a production use.
 
 ## Prerequisites
 
-- [Minikube v1.13.1](https://kubernetes.io/docs/tasks/tools/install-minikube/)
-- [Kubernetes v.1.19.2](https://kubernetes.io/docs/tasks/tools/install-kubectl/)
-- [Helm v3.3.4](https://helm.sh/docs/intro/install/)
-- [Terraform v0.13.3](https://learn.hashicorp.com/tutorials/terraform/install-cli)
+- [Minikube v1.15.1](https://kubernetes.io/docs/tasks/tools/install-minikube/)
+- [Kubernetes v.1.19.4](https://kubernetes.io/docs/tasks/tools/install-kubectl/)
+- [Helm v3.4.1](https://helm.sh/docs/intro/install/)
+- [Terraform v0.13.5](https://learn.hashicorp.com/tutorials/terraform/install-cli)
 
 ## How to test in your Minikube
 
@@ -38,32 +38,36 @@ This is not for a production use.
 ## With this project, you can find
 
 - Sample Terraform
-- Sample Helm charts to deploy multiple micro-services
+- Sample Helm charts to deploy multiple containerised micro-services
 
-## Repository: Node.js + Vue.js + MySQL Boilerplate
+## Micro-services Repository: Node.js + Vue.js + MySQL Boilerplate
 
 - [https://github.com/chrisleekr/nodejs-vuejs-mysql-boilerplate](https://github.com/chrisleekr/nodejs-vuejs-mysql-boilerplate)
 
-## Todo
+## Presslabs MySQL Operator
 
-- [ ] Update MySQL with a replicated stateful application
-- [ ] Add HorizontalPodAutoscaler
+To see orchestrator, run following port forward and open [http://localhost:8080](http://localhost:8080)
+
+```bash
+$ kubectl -nnvm-db port-forward service/presslabs-mysql-operator 8080:80
+```
+
+To see operator logs, run following command
 
-## Troubleshooting
+```bash
+$ kubectl -nnvm-db logs presslabs-mysql-operator-0 -c operator -f
+```
 
-### Failed to enable ingress in Mac OS
+To access mysql, run following command
 
 ```bash
-$ minikube addons enable ingress
-❌  Exiting due to MK_USAGE: Due to networking limitations of driver docker on darwin, ingress addon is not supported.
-Alternatively to use this addon you can use a vm-based driver:
-
-   'minikube start --vm=true'
-
-To track the update on this work in progress feature please check:
-https://github.com/kubernetes/minikube/issues/7332
-$ minikube stop
-$ minikube delete
-$ minikube start --vm=true
-$ minikube addons enable ingress
+$ kubectl -nnvm-db port-forward mysql-cluster-mysql-0 3307:3306
+$ mysql -h127.0.0.1 -uroot -proot -P3307 boilerplate
 ```
+
+## Todo
+
+- [x] Update MySQL with a replicated stateful application - Use presslabs/mysql-operator
+- [ ] Expose MySQL write node for migration to avoid api migration failure
+- [ ] Add HorizontalPodAutoscaler
+- [ ] Add Prometheus and Grafana

build/Dockerfile

@@ -1,10 +1,11 @@
 FROM alpine:edge
 
-ENV TERRAFORM_VERSION=0.13.4-r0
-ENV HELM_VERSION=3.3.4-r0
+ENV TERRAFORM_VERSION=0.13.5-r0
+ENV HELM_VERSION=3.4.0-r0
 
 RUN apk --no-cache add \
   -X http://dl-cdn.alpinelinux.org/alpine/edge/testing \
   terraform=$TERRAFORM_VERSION \
-  helm=$HELM_VERSION
+  helm=$HELM_VERSION \
+  bash=5.0.18-r0
 

helm/nvm-db/.helmignore

@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

helm/nvm-db/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v2
+name: nvm-db
+description: A Helm chart for Kubernetes
+version: 0.1.3
+icon: https://github.com/chrisleekr/nodejs-vuejs-mysql-boilerplate/raw/master/frontend-nuxt/static/icon.png

helm/nvm-db/templates/mysql-operator/mysql-cluster.yaml

@@ -0,0 +1,20 @@
+---
+apiVersion: mysql.presslabs.org/v1alpha1
+kind: MysqlCluster
+metadata:
+  name: mysql-cluster
+  namespace: {{$.Values.namespace}}
+spec:
+  replicas: 2
+  secretName: mysql-secret
+  podSpec:
+    resources:
+      requests:
+        memory: 1G
+        cpu: 200m
+  volumeSpec:
+    persistentVolumeClaim:
+      accessModes: ["ReadWriteOnce"]
+      resources:
+        requests:
+          storage: 1Gi

helm/nvm-db/templates/mysql-operator/mysql-secrets.yaml

@@ -0,0 +1,10 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mysql-secret
+  namespace: {{$.Values.namespace}}
+type: Opaque
+data:
+  {{ range .Values.secrets }}{{.key}}: "{{.value | b64enc}}"
+  {{ end }}

helm/nvm-db/values.yaml

@@ -0,0 +1,11 @@
+namespace: nvm-db
+
+secrets:
+  - key: "ROOT_PASSWORD"
+    value: "root"
+  - key: "USER"
+    value: "boilerplate"
+  - key: "PASSWORD"
+    value: "boilerplate-password"
+  - key: "DATABASE"
+    value: "boilerplate"

helm/nvm/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v2
 name: nvm
 description: A Helm chart for Kubernetes
-version: 0.1.2
+version: 0.1.5
 icon: https://github.com/chrisleekr/nodejs-vuejs-mysql-boilerplate/raw/master/frontend-nuxt/static/icon.png

helm/nvm/templates/apps/apps-ingress-root.yaml

@@ -0,0 +1,22 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    kubernetes.io/ingress.class: "nginx"
+    nginx.ingress.kubernetes.io/app-root: /frontend-vue
+    nginx.ingress.kubernetes.io/enable-rewrite-log: "true"
+  name: ingress-app-root
+  namespace: {{$.Values.namespace}}
+spec:
+  rules:
+    - host: "{{ $.Values.ingress.host }}"
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: frontend-vue
+                port:
+                  number: 80

helm/nvm/templates/apps/apps-ingress.yaml

@@ -1,6 +1,6 @@
 {{ range .Values.apps }}
 ---
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: ingress-{{.name}}
@@ -20,7 +20,10 @@ spec:
       http:
         paths:
           - path: {{ .ingress.path }}
+            pathType: Prefix
             backend:
-              serviceName: {{.name}}
-              servicePort: {{.containerPort}}
+              service:
+                name: {{.name}}
+                port:
+                  number: {{.containerPort}}
 {{ end }}