TODO

Check if installed version of the component is lower than required. Version upgrade abiltiy.
Cleanup. Remove all installable components along with config files.
Abiltiy to choose between KVM and VB in linux environment.

Example of running Rails app with PostgreSQL support within local Kubernetes cluster on Minikube.

Prerequisites

Install VirtualBox or KVM on Linux by yourself.

Test application

Clone it

Assume your projects path is ~/PROJECTS

cd ~/PROJECTS && git clone https://github.com/Antiarchitect/testapp-postgresql.git

Initialize submodules

cd ~/PROJECTS/testapp-postgresql/
git submodule init
git submodule update --remote

Run kubeboot

~/PROJECTS/kubeboot/kb.sh ~/PROJECTS/testapp-postgresql/

Kubernetes dashboard

It should open up automatically, but you can easily access it by typing:

minikube dashboard

Know your app url:

Application should open automatically if web_service_name parameter is set in kubeboot.yaml, but you can easily find out what url your apllication have (if any):

export NODE_PORT=$(kubectl get --namespace default -o jsonpath="{.spec.ports[0].nodePort}" services my-rails-dev-helm-rails)
export NODE_IP=$(kubectl get nodes --namespace default -o jsonpath="{.items[0].status.addresses[0].address}")
echo http://$NODE_IP:$NODE_PORT

Application internals

kubeboot.yaml

kubeboot.yaml is a simple config file stored on the app side to tell kubeboot some specifics about your app you want to run inside the local kubernetes cluster.

Parameters

Parameter	Description
`helm_path`	Path to the helm chart.
`values_filename`	File name with dev values.
`app_image_tag`	Docker image with your application runtime. Will be used to name Helm release.
`web_service_name`	Kubernetes service holding http server so kubeboot can open app in the browser.
`dockerfiles`	Array of hashes with all docker images to be built from your `.dockerfiles`.
`sync_precreate_paths`	Paths that should be precreated before sync with correct permissions

.dockerfiles

Is the place all your service-related dockerfiles for development are located in.

.helm

Is your application Helm chart.

yu-areznikov / kubeboot Goto Github PK

kubeboot's Introduction