RPM Support

Dear support team, I tried installing a new Pulp server on a CentOS 7 fresh server. I have added the pulp-rpm vars in my playbook file and downloaded the necessary Ansible role. The Ansible run fails with the following error :

TASK [pulp_common : Run pip-compile to check pulpcore/plugin compatibility] ***************************************************************************************************************************************
[WARNING]: conditional statements should not include jinja2 templating delimiters such as {{ }} or {% %}. Found: {{ failed_condition | default("compatibility.rc != 0") }}
fatal: [localhost]: FAILED! => {"changed": false, "cmd": ["/usr/local/lib/pulp/bin/pip-compile"], "delta": "0:00:03.277298", "end": "2020-07-15 12:47:44.915505", "failed_when_result": true, "msg": "non-zero return code", "rc": 2, "start": "2020-07-15 12:47:41.638207", "stderr": "Could not find a version that matches pulpcore<3.5,==3.5.0,>=3.4 (from -r requirements.in (line 1))\nTried: 3.0.0, 3.0.0, 3.0.1, 3.0.1, 3.1.0, 3.1.0, 3.1.1, 3.1.1, 3.2.0, 3.2.0, 3.2.1, 3.2.1, 3.3.0, 3.3.0, 3.3.1, 3.3.1, 3.4.0, 3.4.0, 3.4.1, 3.4.1, 3.5.0, 3.5.0\nSkipped pre-versions: 3.0.0a1.dev3, 3.0.0a1.dev3, 3.0.0a1.dev4, 3.0.0a1.dev4, 3.0.0a1.dev5, 3.0.0a1.dev5, 3.0.0a1, 3.0.0a1, 3.0.0a2, 3.0.0a2, 3.0.0a3, 3.0.0a3, 3.0.0a4, 3.0.0a4, 3.0.0a5, 3.0.0a5, 3.0.0a6, 3.0.0a6, 3.0.0a7, 3.0.0a7, 3.0.0a8, 3.0.0a8, 3.0.0a9, 3.0.0a9, 3.0.0a10, 3.0.0a10, 3.0.0a11, 3.0.0a11, 3.0.0a12, 3.0.0a12, 3.0.0a13, 3.0.0a13, 3.0.0a14, 3.0.0a14, 3.0.0a15, 3.0.0a15, 3.0.0a16, 3.0.0a16, 3.0.0a17, 3.0.0a17, 3.0.0a18, 3.0.0a18, 3.0.0a19, 3.0.0a19, 3.0.0a20, 3.0.0a20, 3.0.0a21, 3.0.0a21, 3.0.0a22, 3.0.0a22, 3.0.0a23, 3.0.0a23, 3.0.0a24, 3.0.0a24, 3.0.0a25, 3.0.0a25, 3.0.0a26, 3.0.0a26, 3.0.0a27, 3.0.0a27, 3.0.0a28, 3.0.0a28, 3.0.0a29, 3.0.0a29, 3.0.0b1, 3.0.0b1, 3.0.0b2, 3.0.0b2, 3.0.0b3, 3.0.0b3, 3.0.0b4, 3.0.0b4, 3.0.0b5, 3.0.0b5, 3.0.0b6, 3.0.0b6, 3.0.0b7, 3.0.0b7, 3.0.0b8, 3.0.0b8, 3.0.0b9, 3.0.0b9, 3.0.0b10, 3.0.0b10, 3.0.0b11, 3.0.0b11, 3.0.0b12, 3.0.0b12, 3.0.0b13, 3.0.0b13, 3.0.0b14, 3.0.0b14, 3.0.0b15, 3.0.0b15, 3.0.0b16, 3.0.0b16, 3.0.0b17, 3.0.0b18, 3.0.0b18, 3.0.0b19, 3.0.0b19, 3.0.0b20, 3.0.0b20, 3.0.0b21, 3.0.0b21, 3.0.0b22, 3.0.0b22, 3.0.0b23, 3.0.0b23, 3.0.0rc1, 3.0.0rc1, 3.0.0rc2, 3.0.0rc2, 3.0.0rc3, 3.0.0rc3, 3.0.0rc4, 3.0.0rc4, 3.0.0rc5, 3.0.0rc5, 3.0.0rc6, 3.0.0rc6, 3.0.0rc7, 3.0.0rc7, 3.0.0rc8, 3.0.0rc8, 3.0.0rc9, 3.0.0rc9\nThere are incompatible versions in the resolved dependencies:\n  pulpcore==3.5.0 (from -r requirements.in (line 1))\n  pulpcore<3.5,>=3.4 (from pulp-rpm==3.4.1->-r requirements.in (line 2))", "stderr_lines": ["Could not find a version that matches pulpcore<3.5,==3.5.0,>=3.4 (from -r requirements.in (line 1))", "Tried: 3.0.0, 3.0.0, 3.0.1, 3.0.1, 3.1.0, 3.1.0, 3.1.1, 3.1.1, 3.2.0, 3.2.0, 3.2.1, 3.2.1, 3.3.0, 3.3.0, 3.3.1, 3.3.1, 3.4.0, 3.4.0, 3.4.1, 3.4.1, 3.5.0, 3.5.0", "Skipped pre-versions: 3.0.0a1.dev3, 3.0.0a1.dev3, 3.0.0a1.dev4, 3.0.0a1.dev4, 3.0.0a1.dev5, 3.0.0a1.dev5, 3.0.0a1, 3.0.0a1, 3.0.0a2, 3.0.0a2, 3.0.0a3, 3.0.0a3, 3.0.0a4, 3.0.0a4, 3.0.0a5, 3.0.0a5, 3.0.0a6, 3.0.0a6, 3.0.0a7, 3.0.0a7, 3.0.0a8, 3.0.0a8, 3.0.0a9, 3.0.0a9, 3.0.0a10, 3.0.0a10, 3.0.0a11, 3.0.0a11, 3.0.0a12, 3.0.0a12, 3.0.0a13, 3.0.0a13, 3.0.0a14, 3.0.0a14, 3.0.0a15, 3.0.0a15, 3.0.0a16, 3.0.0a16, 3.0.0a17, 3.0.0a17, 3.0.0a18, 3.0.0a18, 3.0.0a19, 3.0.0a19, 3.0.0a20, 3.0.0a20, 3.0.0a21, 3.0.0a21, 3.0.0a22, 3.0.0a22, 3.0.0a23, 3.0.0a23, 3.0.0a24, 3.0.0a24, 3.0.0a25, 3.0.0a25, 3.0.0a26, 3.0.0a26, 3.0.0a27, 3.0.0a27, 3.0.0a28, 3.0.0a28, 3.0.0a29, 3.0.0a29, 3.0.0b1, 3.0.0b1, 3.0.0b2, 3.0.0b2, 3.0.0b3, 3.0.0b3, 3.0.0b4, 3.0.0b4, 3.0.0b5, 3.0.0b5, 3.0.0b6, 3.0.0b6, 3.0.0b7, 3.0.0b7, 3.0.0b8, 3.0.0b8, 3.0.0b9, 3.0.0b9, 3.0.0b10, 3.0.0b10, 3.0.0b11, 3.0.0b11, 3.0.0b12, 3.0.0b12, 3.0.0b13, 3.0.0b13, 3.0.0b14, 3.0.0b14, 3.0.0b15, 3.0.0b15, 3.0.0b16, 3.0.0b16, 3.0.0b17, 3.0.0b18, 3.0.0b18, 3.0.0b19, 3.0.0b19, 3.0.0b20, 3.0.0b20, 3.0.0b21, 3.0.0b21, 3.0.0b22, 3.0.0b22, 3.0.0b23, 3.0.0b23, 3.0.0rc1, 3.0.0rc1, 3.0.0rc2, 3.0.0rc2, 3.0.0rc3, 3.0.0rc3, 3.0.0rc4, 3.0.0rc4, 3.0.0rc5, 3.0.0rc5, 3.0.0rc6, 3.0.0rc6, 3.0.0rc7, 3.0.0rc7, 3.0.0rc8, 3.0.0rc8, 3.0.0rc9, 3.0.0rc9", "There are incompatible versions in the resolved dependencies:", "  pulpcore==3.5.0 (from -r requirements.in (line 1))", "  pulpcore<3.5,>=3.4 (from pulp-rpm==3.4.1->-r requirements.in (line 2))"], "stdout": "", "stdout_lines": []}

PLAY RECAP ********************************************************************************************************************************************************************************************************
localhost                  : ok=48   changed=0    unreachable=0    failed=1    skipped=31   rescued=0    ignored=0   

Here is the content of my Ansible playbook :

---
- hosts: all
  vars:
    pulp_install_plugins:
      pulp-rpm:
        prereq_role: "pulp.pulp_rpm_prerequisites"
  pre_tasks:
    # The version string below is the highest of all those in roles' metadata:
    # "min_ansible_version". It needs to be kept manually up-to-date.
    - name: Verify Ansible meets min required version
      assert:
        that: "ansible_version.full is version_compare('2.8', '>=')"
        msg: >
          "You must update Ansible to at least 2.8 to use this version of Pulp 3 Installer."
  roles:
    - pulp_all_services
  environment:
    DJANGO_SETTINGS_MODULE: pulpcore.app.settings

Prior to running the playbook, I downloaded the Ansible role as described in the RPM plugin documentation :

ansible-galaxy install -r requirements.yml
ansible-galaxy install pulp.pulp_rpm_prerequisites -p ./roles/
ansible-playbook playbooks/example-use/playbook.yml

I could install Pulp by commenting pulp-rpm vars in the playbook file, and I was able to install the prlp-rpm plugin manually (I had to install a lot more rpm packages than the ones described in https://pulp-rpm.readthedocs.io/en/3.4/installation.html otherwise the "pip install pulp-rpm" command was failing).

Would it be possible to have a look at the Pulp installer ? Thanks a lot