module.yml

---
# Copyright 2018 widdix GmbH
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
AWSTemplateFormatVersion: '2010-09-09'
Description: 'cfn-modules: CloudWatch Dashboard'
# cfn-modules:implements()
Parameters:
  DashboardName:
    Description: 'The name for the dashboard'
    Type: String
    AllowedPattern: '^[A-Za-z0-9-_]{1,255}$'
    ConstraintDescription: 'Only A-Z, a-z, 0-9, -, and _ are supported. Max 255 characters.'
  AlbModule:
    Description: 'Optional stack name of the alb module.'
    Type: String
    Default: ''
  FargateServiceModule:
    Description: 'Optional stack name of the fargate-service module.'
    Type: String
    Default: ''
  RdsAuroraServerlessModule:
    Description: 'Optional stack name of the rds-aurora-serverless module.'
    Type: String
    Default: ''
Conditions:
  HasAlbModule: !Not [!Equals [!Ref AlbModule, '']]
  HasFargateServiceModule: !Not [!Equals [!Ref FargateServiceModule, '']]
  HasRdsAuroraServerlessModule: !Not [!Equals [!Ref RdsAuroraServerlessModule, '']]
Resources:
  CloudWatchDashboardPolicy:
    Type: 'AWS::IAM::ManagedPolicy'
    Properties:
      PolicyDocument:
        Version: '2012-10-17'
        Statement:
        - Effect: Allow
          Action:
          - 'cloudwatch:DeleteDashboards'
          - 'cloudwatch:PutDashboard'
          Resource: '*'
  DashboardFunction:
    Type: 'AWS::CloudFormation::Stack'
    Properties:
      Parameters:
        Handler: 'dashboard.handler'
        Runtime: 'nodejs18.x'
        Timeout: '30'
        ManagedPolicyArns: !Ref CloudWatchDashboardPolicy
      TemplateURL: './node_modules/@cfn-modules/lambda-function/module.yml'
  Dashboard:
    Type: 'Custom::Dashboard'
    Version: '1.0'
    Properties:
      DashboardName: !Ref DashboardName
      AlbFullName: !If [HasAlbModule, {'Fn::ImportValue': !Sub '${AlbModule}-LoadBalancerFullName'}, !Ref 'AWS::NoValue']
      FargateServiceName: !If [HasFargateServiceModule, {'Fn::ImportValue': !Sub '${FargateServiceModule}-ServiceName'}, !Ref 'AWS::NoValue']
      FargateServiceClusterName: !If [HasFargateServiceModule, {'Fn::ImportValue': !Sub '${FargateServiceModule}-ClusterName'}, !Ref 'AWS::NoValue']
      RdsClusterName: !If [HasRdsAuroraServerlessModule, {'Fn::ImportValue': !Sub '${RdsAuroraServerlessModule}-ClusterName'}, !Ref 'AWS::NoValue']
      Region: !Ref 'AWS::Region'
      ServiceToken: !GetAtt 'DashboardFunction.Outputs.Arn'
Outputs:
  ModuleId:
    Value: 'cloudwatch-dashboard'
  ModuleVersion:
    Value: '1.7.0'
  StackName:
    Value: !Ref 'AWS::StackName'