another helm exercise #128
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| # Índice de los archivos de las prácticas | ||
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| - En la carpeta [wordpress](./wordpress/) están los manifiestos de prueba. | ||
| - En la carpeta [actividade-1-charts-helm](./actividade-1-charts-helm/) está la primera prueba de release sin los objetos built-in de helm. | ||
| - En la carpeta [actividade-2-charts-helm](./actividade-2-charts-helm/) incluye objetos built-in de helm. |
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| # 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 | ||
| *.orig | ||
| *~ | ||
| # Various IDEs | ||
| .project | ||
| .idea/ | ||
| *.tmproj | ||
| .vscode/ |
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| apiVersion: v2 | ||
| name: wp-release | ||
| description: A Helm chart of Wordpress for Kubernetes | ||
| type: application | ||
| version: 0.1.0 | ||
| appVersion: "1.16.0" |
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| ############ | ||
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| La instalación de la release wp-release se compone en: | ||
| - Despliegue y servicio de BBDD | ||
| - Despliegue y servicio de WP | ||
| - Configmap | ||
| - Secrets | ||
| - Ingress | ||
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| Es necesaria la instalación de la release wp-volume para darle persistencia a la bbdd mysql y a la configuración de wordpress. | ||
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| ############ | ||
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| # bbdd-deploy.yaml | ||
| apiVersion: apps/v1 | ||
| kind: Deployment | ||
| metadata: | ||
| name: deploy-wp-bbdd | ||
| labels: | ||
| app: "wp-mysql" | ||
| tipo: "practica" | ||
| spec: | ||
| replicas: 1 | ||
| selector: | ||
| matchLabels: | ||
| app: wp-mysql | ||
| template: # a partir de aquí definimos o pod | ||
| metadata: | ||
| labels: | ||
| app: wp-mysql | ||
| spec: | ||
| containers: | ||
| - name: wp-mysql | ||
| image: mysql:8.0 | ||
| env: | ||
| - name: "MYSQL_ROOT_PASSWORD" | ||
| valueFrom: | ||
| secretKeyRef: | ||
| name: wp-secrets | ||
| key: root-password | ||
| - name: "MYSQL_DATABASE" | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: "wp-config" | ||
| key: "MYSQL_DATABASE" | ||
| ports: | ||
| - containerPort: 3306 | ||
| volumeMounts: | ||
| - name: wp-db-persistent-storage | ||
| mountPath: /var/lib/mysql | ||
| volumes: | ||
| - name: wp-db-persistent-storage | ||
| persistentVolumeClaim: | ||
| claimName: wp-db-pv-claim | ||
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| # bbdd-service.yaml | ||
| kind: Service | ||
| apiVersion: v1 | ||
| metadata: | ||
| name: servicio-wp-bbdd | ||
| spec: | ||
| selector: | ||
| app: wp-mysql | ||
| ports: # esta é a parte de especificación propia | ||
| - protocol: TCP | ||
| port: 3306 | ||
| targetPort: 3306 |
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| # configmap.yaml | ||
| apiVersion: v1 | ||
| kind: ConfigMap | ||
| metadata: | ||
| name: wp-config | ||
| labels: | ||
| tipo: "practica" | ||
| data: | ||
| MYSQL_HOST: servicio-wp-bbdd | ||
| MYSQL_USER: "root" | ||
| MYSQL_DATABASE: "wp-db" |
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| # ingress.yaml | ||
| apiVersion: networking.k8s.io/v1 | ||
| kind: Ingress | ||
| metadata: | ||
| name: wp-ingress | ||
| annotations: | ||
| nginx.ingress.kubernetes.io/rewrite-target: "/" | ||
| nginx.ingress.kubernetes.io/ssl-redirect: "false" | ||
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| spec: | ||
| rules: | ||
| - http: | ||
| paths: | ||
| - pathType: Prefix | ||
| path: /v1 | ||
| backend: | ||
| service: | ||
| name: servicio-wp | ||
| port: | ||
| number: 8080 |
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| # secret.yaml | ||
| apiVersion: v1 | ||
| kind: Secret | ||
| metadata: | ||
| name: wp-secrets | ||
| type: Opaque | ||
| data: | ||
| root-password: QzBudHI0c2VuNA== | ||
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| # wp-deploy.yaml | ||
| apiVersion: apps/v1 | ||
| kind: Deployment | ||
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Contributor
There was a problem hiding this comment. This should be a statefulset @manuelver : https://kubernetes.io/blog/2016/12/statefulset-run-scale-stateful-applications-in-kubernetes/ |
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| metadata: | ||
| name: deploy-wp | ||
| labels: | ||
| app: "deploy-wp" | ||
| tipo: "practica" | ||
| spec: | ||
| replicas: 1 | ||
| selector: | ||
| matchLabels: | ||
| app: deploy-wp | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: deploy-wp | ||
| spec: | ||
| containers: | ||
| - name: deploy-wp | ||
| image: wordpress:6.1 | ||
| env: | ||
| - name: "MYSQL_PASSWORD" | ||
| valueFrom: | ||
| secretKeyRef: | ||
| name: wp-secrets | ||
| key: root-password | ||
| envFrom: | ||
| - configMapRef: | ||
| name: wp-config | ||
| ports: | ||
| - containerPort: 8080 | ||
| volumeMounts: | ||
| - name: wordpress-persistent-storage | ||
| mountPath: /var/www/html | ||
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Contributor
There was a problem hiding this comment. I think the mount path should be the folder with the files that will be generated during the normal operation of the site, in specific the https://www.theistudio.com/where-are-wordpress-files-stored/#h-wordpress-file-locations
Contributor
Author
There was a problem hiding this comment. It would be more correct from wp-content to add the layout, theme and so on. But yes, from the html directory would be too much. |
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| volumes: | ||
| - name: wordpress-persistent-storage | ||
| persistentVolumeClaim: | ||
| claimName: wp-pv-claim | ||
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Contributor
There was a problem hiding this comment. This disk should be a shared storage, like aws efs or Azure Fileshare. To be able to mount it in multiple pod replicas |
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| # wp-service.yaml | ||
| kind: Service | ||
| apiVersion: v1 | ||
| metadata: | ||
| name: servicio-wp | ||
| spec: | ||
| selector: | ||
| app: deploy-wp | ||
| ports: | ||
| - protocol: TCP | ||
| port: 8080 | ||
| targetPort: 80 |
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| # 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 | ||
| *.orig | ||
| *~ | ||
| # Various IDEs | ||
| .project | ||
| .idea/ | ||
| *.tmproj | ||
| .vscode/ |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,6 @@ | ||
| apiVersion: v2 | ||
| name: wp-volume | ||
| description: A Helm chart of wp's volume for Kubernetes | ||
| type: application | ||
| version: 0.1.0 | ||
| appVersion: "1.16.0" |
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| ############ | ||
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| La instalación de la release wp-volume se compone en: | ||
| - Volumen para bbdd mysql de la release "wp-release" | ||
| - Volumen para el CMS Wordpress de la release "wp-release" | ||
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| Esta release no debería borrarse y en todo caso debe tener backups periódicos, ya que contiene los datos que deben ser persistentes de la release "wp-release". | ||
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| ############ | ||
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| #bbdd-volume.yaml | ||
| apiVersion: v1 | ||
| kind: PersistentVolumeClaim | ||
| metadata: | ||
| name: wp-db-pv-claim | ||
| labels: | ||
| app: deploy-wp-bbdd | ||
| spec: | ||
| accessModes: | ||
| - ReadWriteOnce | ||
| resources: | ||
| requests: | ||
| storage: 2Gi |
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| # wp-volume.yaml | ||
| apiVersion: v1 | ||
| kind: PersistentVolumeClaim | ||
| metadata: | ||
| name: wp-pv-claim | ||
| labels: | ||
| app: deploy-wp | ||
| spec: | ||
| accessModes: | ||
| - ReadWriteOnce | ||
| resources: | ||
| requests: | ||
| storage: 2Gi |
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| # ¿Cómo se ha construido está release? | ||
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| Siguiendo el tutorial de [formación de Helm](https://prefapp.github.io/formacion/cursos/helm/#/) desde la plantilla de release creada en la [actividad 1](../actividade-1-charts-helm/) se han añadido [valores y su interpolación](https://prefapp.github.io/formacion/cursos/helm/#/./02_helm_charts/01_valores_y_su_interpolacion). | ||
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| Después se ha añadido el repo del microframework de [Prefapp Helm](https://github.com/prefapp/prefapp-helm) para implementar Charts modulares. | ||
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| ```shell | ||
| helm repo add prefapp-helm https://prefapp.github.io/prefapp-helm | ||
| helm repo update | ||
| ``` | ||
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| Y se ha incluído la dependencia en el fichero Chart.yaml. | ||
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| ```yaml | ||
| # Chart.yaml | ||
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| ... | ||
| dependencies: | ||
| # ... your other dependencies | ||
| - name: prefapp-helm | ||
| version: <your desired version> | ||
| repository: https://prefapp.github.io/prefapp-helm | ||
| ... | ||
| ``` |
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| # 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 | ||
| *.orig | ||
| *~ | ||
| # Various IDEs | ||
| .project | ||
| .idea/ | ||
| *.tmproj | ||
| .vscode/ | ||
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| # Según prefapp-helm ignorar también | ||
| # | ||
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| templates/_renders_cert_issuer.yaml | ||
| templates/_stash.yaml | ||
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| tests/ | ||
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| README.md | ||
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| *.sh | ||
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| docs/ | ||
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| a.yml | ||
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| *.tgz | ||
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| oldtests/ |
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| apiVersion: v2 | ||
| name: wp | ||
| description: A Helm chart of Wordpress for Kubernetes | ||
| type: application | ||
| version: 0.1.0 | ||
| appVersion: "1.16.0" | ||
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| # Artefactos de prefapp-helm | ||
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| #dependencies: | ||
| # - name: prefapp-helm | ||
| # version: 0.4.1 | ||
| # repository: https://prefapp.github.io/prefapp-helm |
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| Original file line number | Diff line number | Diff line change |
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| ############ | ||
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| La instalación de la release wp-release se compone en: | ||
| - Despliegue y servicio de BBDD | ||
| - Despliegue y servicio de WP | ||
| - Configmap | ||
| - Secrets | ||
| - Ingress | ||
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| Es necesaria la instalación de la release wp-volume para darle persistencia a la bbdd mysql y a la configuración de wordpress. | ||
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| ############ | ||
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The secret is not really encrypted, shouldn't be stored in the repo. You could use a service like aws parameter store, or sops to really encrypt the secret in the code.