AWSTemplateFormatVersion: '2010-09-09'
Description: This Cloudformation template shows you how to use Cloudformation to deploy
  WordPress using Helm charts. You will be deploying this into the "Amazon EKS QuickStart"
  which is a qre-requist. "https://docs.aws.amazon.com/quickstart/latest/amazon-eks-architecture/welcome.html" **WARNING** You will be billed for the AWS resources used if you create a stack from this template.
Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
      - Label:
          default: Wordpress
        Parameters:
          - wordpressUsername
          - wordpressPassword
      - Label:
          default: Kube Cluster
        Parameters:
          - KubeClusterName
          - KubeConfigPath
          - KubeGetLambdaArn
          - KubeConfigKmsContext
          - HelmLambdaArn
          - Namespace
          - Name
    ParameterLabels:
      wordpressUsername:
        default: Wordpress Username
      wordpressPassword:
        default: Wordpress Password
      KubeClusterName:
        default: EKS Kube Cluster Name
      KubeConfigPath:
        default: Kube Config Path
      KubeGetLambdaArn:
        default: Kube Get Lambda ARN
      KubeConfigKmsContext:
        default: Kube KMS Context
      HelmLambdaArn:
        default: EKS Stack Helm ARN
      Namespace:
        default: Kube Namespace for this function
      Name:
        default: Kube Name for this function
Parameters:
   wordpressUsername:
    AllowedPattern: ^[a-z][a-z0-9_]*$
    ConstraintDescription: User name parameter must be lowercase, begin with a letter,
      contain only alphanumeric characters or underscores, and be less than 60 characters.
    Default: admin
    Description: 'The user name that is associated with the master user account for
      Wordpress. The user name must contain fewer than 60 alphanumeric
      characters or underscores, and must be lowercase and begin with a letter. '
    MaxLength: '60'
    MinLength: '1'
    Type: String
   wordpressPassword:
    Description: 'The password that is associated with the master user account for
      Wordpress. The password must contain 8 to 64 printable ASCII
      characters, excluding: /, ", \'', \ and @. It must contain one uppercase letter,
      one lowercase letter, and one number.'
    MaxLength: '64'
    NoEcho: 'true'
    Type: String
   HelmLambdaArn:
    Description: 'Get this from the EKSStack outputs section in CloudFormation.'
    Type: String
   KubeClusterName:
    Description: 'Get this from the EKSStack outputs section in CloudFormation.'
    Type: String
   KubeConfigPath:
    Description: 'Get this from the EKSStack outputs section in CloudFormation.'
    Type: String
   KubeGetLambdaArn:
    Description: 'Get this from the EKSStack outputs section in CloudFormation.'
    Type: String
   KubeConfigKmsContext:
    Description: 'This is using the default from the AWS EKS Quick Start, if you modified
    this context when deploying. You need to use the modified KMS context here.'
    Type: String
    Default: "EKSQuickStart"
   Namespace:
    Description: 'Modify to use a custom Namespace. The Namespace up to 63 characters
    long. The characters allowed in names are: digits (0-9), lower case letters (a-z),
    and underscore(s)(cannot start or end with)'
    Type: String
    Default: "example-helm"
   Name:
    Description: 'Modify to use a custom Names. The Names up to 253 characters
    long. The characters allowed in names are: digits (0-9), lower case letters (a-z), -,
    and ..'
    Type: String
    Default: "myrelease"
Resources:
  HelmExample:
    Type: "Custom::Helm"
    Version: '1.0'
    Properties:
      ServiceToken: !Ref HelmLambdaArn
      KubeConfigPath: !Ref KubeConfigPath
      KubeConfigKmsContext: !Ref KubeConfigKmsContext
      KubeClusterName: !Ref KubeClusterName
      Namespace: !Ref Namespace
      Chart: stable/wordpress
      Name: !Ref Name
      Values:
        wordpressUsername: !Ref wordpressUsername
        wordpressPassword: !Ref wordpressPassword
  WPElbHostName:
    DependsOn: HelmExample
    Type: "Custom::KubeGet"
    Version: '1.0'
    Properties:
     ServiceToken: !Ref KubeGetLambdaArn
     KubeConfigPath: !Ref KubeConfigPath
     KubeConfigKmsContext: !Ref KubeConfigKmsContext
     Namespace: !Ref Namespace
     Name: !Sub 'service/${Name}-wordpress'
     JsonPath: '{.status.loadBalancer.ingress[0].hostname}'

Outputs:
    WPElbHostName:
      Value: !Ref WPElbHostName