Kubecraft

Kubecraft is a Kubernetes deployment utility.

Prerequisits

1. Docker Desktop
2. kubectl
3. Kompose
4. Node and NPM
5. Dockerfile / docker-compose.yaml files: your application must have either a Dockerfile (Docker) or a docker-compose.yaml (docker-compose).

Setup

1. Add or update your .env file to include the following values:

   1. DOCKER_REGISTRY=[Your Docker Registry URL] (e.g. myregistry.azurecr.io)
   2. If you are not using a package.json file, add VERSION=[semver] (e.g, VERSION=0.0.1)

2. Log in to your docker registry: docker login --username [Docker Registry user name] --pasword [Docker Registry password] [Docker Registry URL]

3. Install kubecraft either locally or globally:

   Local installation:

   npm install -d kubecraft

   Add a script in package.json, for example:

   {
     "name": "my-service",      
     "license": "MIT",
     "version": "0.0.2",      
     "main": "src/start.js",
     "repository": "...",
     "scripts": {        
       "start": "babel-node ./src/start.dev.js",        
       "deploy": "kubecraft deploy"
     },

   Global installation

   npm install -g kubecraft

Run kubecraft

If you installed kubecraft globally, simply execute kubecraft [command] with one of the commands listed beloy in the root folder for your project (assuming that is where either the Dockerfile or the docker-compose.yaml file are located)

If you installed kubecraft locally, you should be able to either use an npm script, or you could run

export PATH=$PWD/bin:$PATH

to make the kubecraft command available in your terminal session.

Kubecraft commands

kubecraft [command]

1. deploy - Deploy the your application to Kubernetes (combination of all the commands below)

2. createDockerCompose: Create a basic docker-compose for you application (if one does not exist)

3. buildAndPush: Build your Docker image and push it to the Docker regsitry

4. prep - Prepare your application for deployement (build, configure and convert docker-compose to a Kubernetes config)

5. dockerComposeConfig: Produce a concrete docker-compose file, applying any enviornment variables defined in .env to the docker-compose.yaml file. Produces docker-compose-resolved.yaml

6. komposeConvert - Convert docker-compose-resolved.yaml to a Kubernetes configuration. Produces kompose.yaml

7. apply - Apply the kompose.yaml configuration to the currently active cluster.

8. expose - Expose your application using a Load Balancer. When completed, provides the newly deployed service's IP address.