sendmail.yaml

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: >
      {"apiVersion":"tekton.dev/v1beta1","kind":"Task","metadata":{"annotations":{"tekton.dev/categories":"Messaging","tekton.dev/displayName":"send
      mail","tekton.dev/pipelines.minVersion":"0.12.1","tekton.dev/platforms":"linux/amd64,linux/s390x,linux/ppc64le,linux/arm64","tekton.dev/tags":"mail"},"labels":{"app.kubernetes.io/version":"0.1"},"name":"sendmail","namespace":"pipeline-tutorial"},"spec":{"description":"This
      task sends a simple email to receivers via SMTP
      server","params":[{"description":"secret name for SMTP server information
      (url, port,
      password)","name":"server","type":"string"},{"description":"plain text
      email subject","name":"subject","type":"string"},{"description":"plain
      text email body","name":"body","type":"string"},{"description":"sender
      email address","name":"sender","type":"string"},{"description":"recipient
      email addresses (space delimited
      list)","name":"recipients","type":"string"}],"steps":[{"env":[{"name":"USER","valueFrom":{"secretKeyRef":{"key":"user","name":"$(params.server)"}}},{"name":"PASSWORD","valueFrom":{"secretKeyRef":{"key":"password","name":"$(params.server)"}}},{"name":"TLS","valueFrom":{"secretKeyRef":{"key":"tls","name":"$(params.server)"}}},{"name":"SERVER","valueFrom":{"secretKeyRef":{"key":"url","name":"$(params.server)"}}},{"name":"PORT","valueFrom":{"secretKeyRef":{"key":"port","name":"$(params.server)"}}}],"image":"docker.io/library/python:3.8-alpine@sha256:e11bbd37d4371894e954421b85dbe8dd4eb7198d7cb4ed144ab529f19f57c3f1","name":"send","script":"#!/usr/bin/env
      python3\nimport smtplib, ssl, os\nport = os.getenv('PORT')\nsmtp_server =
      os.getenv('SERVER')\nsender_email = \"$(params.sender)\"\nreceiver_emails
      = \"$(params.recipients)\"\nuser = os.getenv('USER')\npassword =
      os.getenv('PASSWORD')\ntls = os.getenv('TLS')\nmessage =
      f\"\"\"\\\nSubject: $(params.subject)\nTo: {receiver_emails}\nFrom:
      {sender_email}\n\n$(params.body)\"\"\"\nprint(message)\nif tls ==
      'True':\n    context = ssl.create_default_context()\n    server =
      smtplib.SMTP_SSL(smtp_server, port, context=context)\nelse:\n    server =
      smtplib.SMTP(smtp_server, port)\nif password != '':\n   
      server.login(user, password)\nfor receiver in [item for item in
      receiver_emails.split(' ') if item]:\n    server.sendmail(sender_email,
      receiver, message.encode('utf-8'))\nserver.quit()\n"}]}}
    tekton.dev/categories: Messaging
    tekton.dev/displayName: send mail
    tekton.dev/pipelines.minVersion: 0.12.1
    tekton.dev/platforms: 'linux/amd64,linux/s390x,linux/ppc64le,linux/arm64'
    tekton.dev/tags: mail
  name: sendmail
  namespace: cuala-mvp
  labels:
    app.kubernetes.io/version: '0.1'
spec:
  description: This task sends a simple email to receivers via SMTP server
  params:
    - description: 'secret name for SMTP server information (url, port, password)'
      name: server
      type: string
    - description: plain text email subject
      name: subject
      type: string
    - description: plain text email body
      name: body
      type: string
    - description: sender email address
      name: sender
      type: string
    - description: recipient email addresses (space delimited list)
      name: recipients
      type: string
  steps:
    - env:
        - name: USER
          valueFrom:
            secretKeyRef:
              key: user
              name: $(params.server)
        - name: PASSWORD
          valueFrom:
            secretKeyRef:
              key: password
              name: $(params.server)
        - name: TLS
          valueFrom:
            secretKeyRef:
              key: tls
              name: $(params.server)
        - name: SERVER
          valueFrom:
            secretKeyRef:
              key: url
              name: $(params.server)
        - name: PORT
          valueFrom:
            secretKeyRef:
              key: port
              name: $(params.server)
      image: >-
        docker.io/library/python:3.8-alpine@sha256:e11bbd37d4371894e954421b85dbe8dd4eb7198d7cb4ed144ab529f19f57c3f1
      name: send
      resources: {}
      script: |
        #!/usr/bin/env python3
        import smtplib, os
        from email.mime.multipart import MIMEMultipart
        from email.mime.text import MIMEText

        port = os.getenv('PORT')
        smtp_server = os.getenv('SERVER')
        sender_email = "$(params.sender)"
        receiver_emails = "$(params.recipients)"
        body = "Test"

        print(sender_email)

        password = os.getenv('PASSWORD')

        message = MIMEMultipart()
        message['Subject'] = "$(params.subject)"
        message['From'] = sender_email
        message['To'] = receiver_emails
        html_part = MIMEText(body)

        message.attach(html_part)

        print(message.as_string())

        with smtplib.SMTP_SSL('smtp.gmail.com', 465) as server:
          server.login(sender_email, password)
          server.sendmail(sender_email, receiver_emails, message.as_string())