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Kubernetes Config ​

Overview ​

The kubernetes config for generated applications is as straightforward as possible and is designed to be as simple as possible to get started with.

It's composed of the api and ui services; and uses nginx-ingress and cert-manager.

DigitalOcean Deployment ​

We host our services on DigitalOcean and prepared a simple guide on how to host Codecannon apps on the DigitalOcean Managed Kubernetes clusters.

Prerequisites ​

  • Build and push docker images to your docker repository
  • Configure repository access on your kubernetes cluster
  • Install nginx-ingress in the DigitalOcean Marketplace
  • Install cert-manager in the DigitalOcean Marketplace
  • Replace placeholder values in k8s/**/*.yml configs with actual values
  • Create a Namespace. A simple Namespace config is available in k8s/namespace.yml

Api Service ​

The api service contains your Laravel backend alongside a SQLite database.

It's based on the api Docker image (api/Dockerfile).

  • You can find the api Service in k8s/services/api_service.yml. It's the simplest service config exposing the api service on port 80.
  • You can find the api Deployment in k8s/deployments/api_deployment.yml.

INFO

The api deployment runs a few commands on startup:

  • yes n | cp -i /storage-initial/database/database.sqlite 2>/dev/null; - Creates an empty database if one doesn't exist
  • php artisan key:generate - Generates APP_KEY
  • php artisan optimize - Runs all Laravel cache commands
  • php artisan migrate --force - Runs migrations
  • php artisan db:seed --force - Runs seeders
  • The deployment environment variables are stored in a ConfigMap and Secret file.
    • The Configmap can be found in k8s/configmaps/api_configmap.yml
    • The Secret file found in k8s/secrets/api_secret.yml

UI Service ​

The ui service contains your Vue.js frontend.

It's based on the ui Docker image (ui/Dockerfile).

  • You can find the ui Service in k8s/services/ui_service.yml. It's the simplest service config exposing the ui service on port 80.
  • You can find the ui Deployment in k8s/deployments/ui_deployment.yml. It's a simple deployment configuration with minimal presets.

Ingress Controller ​

DigitalOcean Marketplace - NGINX Ingress Controller

For the simplest deployment, the default DigitalOcean nginx-ingress installation should be sufficient.

  • You can find the Ingress config in k8s/ingress/ingress.yml. It's a simple ingress config that hosts the ui service on the root of the domain and the api service on the /api path.

Cert manager ​

DigitalOcean Marketplace - Cert-Manager

For the simplest deployment, the default DigitalOcean cert-manager installation should be sufficient.

  • The ClusterIssuer config for the letsencrypt staging server can be found in k8s/cluster_issuer.yml.
  • The Certificate config can be found in k8s/certificate.yml.