Ansible conditional with variables and wildcards

Been trying to add a conditional with a wildcard and an Ansible variable and getting an error message. The idea is to trigger the api request with the container name starts with "android-", this is a follow-up to a docker container creation playbook.

My playbook:

---
- name: move agent android
  hosts: server1; server2
  vars:
    containers: "{{ containers }}" #variable in a different file

tasks:
    - name: move agent Android
      command: curl "api request to a server"
      when:  "containers.startswith('android-*')"

the error:

TASK [move agent Android] ******************************************************
  fatal: [server1]: FAILED! => {"msg": "The conditional check 'containers.startswith('android-*')' failed. The error was: error while evaluating conditional (containers.startswith('android-*')): 'list object' has no attribute 'startswith'\n\nThe error appears to be in '/directory/were/the/playbook/is/move-agent-android.yml': line 13, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n    - name: move agent Android\n      ^ here\n"}

I have tried to change the conditionals to different versions and all gething the same error.

other versions:

when:  "containers is match('android-*')"

when:  item.name.startswith('android-*')

when:  "{{ containers }}" is match('android-*')

Any idea how to solve the error?

Try

when: "containers is match('^android-.*$')"

It is a Python regex. The dot '.' was missing in front of the star '*'. Also, you need to start '^' and end "$" the expression in case of matching.