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 "cells": [
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    "How to create a Service\n",
    "=============\n",
    "\n",
    "In this notebook, we show you how to create a [Service](https://kubernetes.io/docs/concepts/services-networking/service/). \n",
    "A service is a key Kubernetes API resource. It defines a networking abstraction to route traffic to a particular set of Pods using a label selection."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true,
    "deletable": true,
    "editable": true
   },
   "outputs": [],
   "source": [
    "from kubernetes import client, config"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true
   },
   "source": [
    "### Load config from default location"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
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   "source": [
    "config.load_kube_config()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true
   },
   "source": [
    "### Create API endpoint instance"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true,
    "deletable": true,
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   "outputs": [],
   "source": [
    "api_instance = client.CoreV1Api()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true
   },
   "source": [
    "### Create API resource instances"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true,
    "deletable": true,
    "editable": true
   },
   "outputs": [],
   "source": [
    "service = client.V1Service()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true
   },
   "source": [
    "### Fill required Service fields (apiVersion, kind, and metadata)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true,
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   "outputs": [],
   "source": [
    "service.api_version = \"v1\"\n",
    "service.kind = \"Service\"\n",
    "service.metadata = client.V1ObjectMeta(name=\"my-service\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true
   },
   "source": [
    "### Provide Service .spec description\n",
    "Set Service object named **my-service** to target TCP port **9376** on any Pod with the **'app'='MyApp'** label. The label selection allows Kubernetes to determine which Pod should receive traffic when the service is used."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false,
    "deletable": true,
    "editable": true
   },
   "outputs": [],
   "source": [
    "spec = client.V1ServiceSpec()\n",
    "spec.selector = {\"app\": \"MyApp\"}\n",
    "spec.ports = [client.V1ServicePort(protocol=\"TCP\", port=80, target_port=9376)]\n",
    "service.spec = spec"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true
   },
   "source": [
    "### Create Service"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false,
    "deletable": true,
    "editable": true
   },
   "outputs": [],
   "source": [
    "api_instance.create_namespaced_service(namespace=\"default\", body=service)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true
   },
   "source": [
    "### Delete Service"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false,
    "deletable": true,
    "editable": true
   },
   "outputs": [],
   "source": [
    "api_instance.delete_namespaced_service(name=\"my-service\", namespace=\"default\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true,
    "deletable": true,
    "editable": true
   },
   "outputs": [],
   "source": []
  }
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