pipeline {

  options {
    ansiColor('xterm')
  }

  agent {
    kubernetes {
      yamlFile 'builder.yaml'
    }
  }
  
  parameters {
    booleanParam(name: 'install', description: 'Instalar todo', defaultValue: false)
    booleanParam(name: 'clean', description: 'Borrar todo', defaultValue: false)
    booleanParam(name: 'claims', description: 'Crea PVC', defaultValue: false)
    booleanParam(name: 'borraclaims', description: 'Borra PVC', defaultValue: false)
  }
  
  stages {

    stage('Crea las PVC') {
      when {
        expression { params.claims}
      }
      steps {
        echo "Creando las PVC..." 
        container('kubectl') {
          withCredentials([file(credentialsId: 'kubeconfig-imac', variable: 'KUBECONFIG')]) {
            sh 'kubectl create -f K8S/pvc-jugaralpadel.yaml'
            sh 'kubectl create -f K8S/pvc-static.yaml'
            sh 'kubectl create -f K8S/pvc-postgresql.yaml'
          }
        }
      }      
    }

    stage('Borra las PVC') {
      when {
        expression { params.borraclaims}
      }
      steps {
        echo "Borrando las PVC..." 
        container('kubectl') {
          withCredentials([file(credentialsId: 'kubeconfig-imac', variable: 'KUBECONFIG')]) {
            sh 'kubectl delete -f K8S/pvc-jugaralpadel.yaml||true'
            sh 'kubectl delete -f K8S/pvc-static.yaml||true'
            sh 'kubectl delete -f K8S/pvc-postgresql.yaml||true'
          }
        }
      }     
    }

    stage('Borra todo') {
      when {
        expression { params.clean }
      }
      steps {
        echo "Borrando todo..." 
        container('kubectl') {
          withCredentials([file(credentialsId: 'kubeconfig-imac', variable: 'KUBECONFIG')]) {
            sh 'kubectl delete -f K8S/db-deployment.yaml||true'
            sh 'kubectl delete -f K8S/db-service.yaml||true'

            sh 'kubectl delete -f K8S/jugaralpadel-jenkins-deployment.yaml||true'
            sh 'kubectl delete -f K8S/jugaralpadel-ingress.yaml||true'

            sh 'kubectl delete -f K8S/reg-secret.yaml||true'
            sh 'kubectl delete -f K8S/env-prod-configmap.yaml||true' 
            sh 'kubectl delete -f K8S/env-prod-db-configmap.yaml||true' 

            sh 'kubectl delete -f K8S/namespace.yaml||true'
          }
        }
      }      
    }

    stage('Kaniko Build & Push Image') {
      when {
        expression { !params.clean }
      }
      steps {
        container('kaniko') {
          script {
            sh '''
            /kaniko/executor --dockerfile `pwd`/Dockerfile \
                             --context `pwd` \
                             --destination=registry.reymota.es/jugaralpadel:${BUILD_NUMBER}
            '''
          }
        }
      }
    }

    stage('Instala todo') {
      when {
        expression { params.install }
      }
      steps {
        echo "Creando todo..." 
        container('kubectl') {
          withCredentials([file(credentialsId: 'kubeconfig-imac', variable: 'KUBECONFIG')]) {
            sh 'kubectl apply -f K8S/namespace.yaml'
            sh 'kubectl create -f K8S/reg-secret.yaml'
            sh 'kubectl create -f K8S/env-prod-configmap.yaml' 
            sh 'kubectl create -f K8S/env-prod-db-configmap.yaml' 

            sh 'kubectl create -f K8S/db-deployment.yaml'
            sh 'kubectl create -f K8S/db-service.yaml'

            sh 'kubectl apply -f K8S/jugaralpadel-jenkins-deployment.yaml'
            sh 'kubectl create -f K8S/jugaralpadel-ingress.yaml'
          }
        }
      }
    }

    stage('Deploy App to Kubernetes') {
      when {
        expression { !params.clean }
      }
      steps {
        echo "Desplegando la aplicación" 
        container('kubectl') {
          withCredentials([file(credentialsId: 'kubeconfig-imac', variable: 'KUBECONFIG')]) {
            sh 'sed -i "s/<TAG>/${BUILD_NUMBER}/" K8S/jugaralpadel-jenkins-deployment.yaml'
            sh 'kubectl delete -f K8S/jugaralpadel-jenkins-deployment.yaml || true'          
            sh 'kubectl apply -f K8S/jugaralpadel-jenkins-deployment.yaml'
          }
        }
      }
    }   
  }
  
  post {
    always {
      mail to: 'creylopez@yahoo.es',
        subject: "Trabajo ${currentBuild.fullDisplayName}",
        body: "El resultado del trabajo '${currentBuild.fullDisplayName}' ha sido <b>${currentBuild.result}</b>: Comprueba la salida de consola en ${env.BUILD_URL} para ver los resultados.",
        mimeType: 'text/html'
    }

    failure {
      mail to: 'creylopez@yahoo.es',
        subject: "El trabajo ${currentBuild.fullDisplayName} ha fallado",
        body: "El trabajo ha <b>FALLADO</b>: Comprueba la salida de consola en ${env.BUILD_URL} para ver los resultados.",
        mimeType: 'text/html'
    }

    unstable {
      echo 'El trabajo ${currentBuild.fullDisplayName} ha sido marcado como inestable'
    }

    changed {
      mail bcc: '', 
           body: "El estado del trabajo '${currentBuild.fullDisplayName}' ha cambiado",
           from: '', 
           replyTo: '', 
           subject: "El estado del trabajo ha cambiado", 
           to: 'creylopez@yahoo.es',
           mimeType: 'text/html'
    }
  }
}
