I’m trying to filter a specific string ending in cmctl_linux_arm64, from the checksums.txt file, see sample:

ff5e6efc85421bc46975ee60cf71bec1de3f983f27a3ba8e56a0953e8c9b8a07  cmctl_linux_arm64
bb5b8db1da6b4f7f046ebbf0aced0623e1b93990c474beb525296e72076b9421  cmctl_linux_arm64.spdx.sbom
6f903b8554f7e608ba3d156878f3720480b5dd693400e0354f2c88b94e4b9de0  cmctl_linux_arm64.tar.gz

Considering the following tasks:

    - name: Set file fact
      ansible.builtin.set_fact:
        release_file: cmctl_linux_arm64
      run_once: true

    - name: Set checksums fact
      ansible.builtin.uri:
        url: https://github.com/cert-manager/cmctl/releases/download/v2.1.0/checksums.txt
        return_content: true
      register: checksums
      run_once: true

    - name: Set sha256 checksum fact
      ansible.builtin.set_fact:
        sha256_checksum: "{{ item.split(' ')[0] }}"
      loop: "{{ checksums.content.split('n') }}"
      when: release_file in item
      run_once: true

I’m not sure how to use the Ansible Regex search, in order to define the end of fact variable release_file and skip the additional 2 file checksums present.

I tried, without success:

when: regex_search(release_file + '$') in item