HAProxy configuration validation fails during role execution on Ubuntu 24.04

[Cust0mfirmware]

Environment

OS: Ubuntu 24.04
Ansible Environment:

ansible [core 2.16.3]
config file = /home/user/.ansible.cfg
configured module search path = ['/home/user/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python3/dist-packages/ansible
ansible collection location = /home/user/.ansible/collections:/usr/share/ansible/collections
executable location = /usr/bin/ansible
python version = 3.12.3 (main, Sep 11 2024, 14:17:37) [GCC 13.2.0] (/usr/bin/python3)
jinja version = 3.1.2
libyaml = True

Playbook Used

---
- name: Install and configure HAProxy Load Balancer
  hosts: loadbalancers
  become: true
  roles:
    - { role: geerlingguy.haproxy }

Error Details

When running the role geerlingguy.haproxy on an Ubuntu 24.04 system, the task Copy HAProxy configuration in place fails with the following message:

TASK [geerlingguy.haproxy : Copy HAProxy configuration in place.] **************
fatal: [loadbalancer]: FAILED! => {"changed": false, "checksum": "c6c037af65e62d4d6ee5db810f49a9bd1f83df13", "exit_status": 1, "msg": "failed to validate", "stderr": "", "stderr_lines": [], "stdout": "", "stdout_lines": []}

Steps to Reproduce

• Set up a fresh Ubuntu 24.04 environment.
• Install Ansible and the geerlingguy.haproxy role.
• Run the provided playbook with the configuration as outlined above.

Expected Behavior

HAProxy should install, the configuration should be copied, without validation errors.

Actual Behavior:

The playbook fails at task "Copy HAProxy configuration in place", error message see above.

Additional Notes

The HAProxy configuration seems to be valid, running haproxy -f /etc/haproxy/haproxy.cfg -c directly on the Ubuntu system does not show any syntax errors.

[philipp-intelliroad]

I ran into the same problem.

My haproxy version is: "HAProxy version 2.8.5-1ubuntu3.1 2024/10/02"

Nov 26 11:50:38 haproxy01 haproxy[14756]: [NOTICE]   (14756) : haproxy version is 2.8.5-1ubuntu3.1
Nov 26 11:50:38 haproxy01 haproxy[14756]: [NOTICE]   (14756) : path to executable is /usr/sbin/haproxy
Nov 26 11:50:38 haproxy01 haproxy[14756]: [ALERT]    (14756) : config : parsing [/etc/haproxy/haproxy.cfg:35] : 'option httpchk' : hiding headers or body at the end of the version string is unsupported>
Nov 26 11:50:38 haproxy01 haproxy[14756]: [ALERT]    (14756) : config : Error(s) found in configuration file : /etc/haproxy/haproxy.cfg
Nov 26 11:50:38 haproxy01 haproxy[14756]: [ALERT]    (14756) : config : Fatal errors found in configuration.
Nov 26 11:50:38 haproxy01 systemd[1]: haproxy.service: Main process exited, code=exited, status=1/FAILURE

If I create a configuration without the httpchk header everything works fine.

[philipp-intelliroad]

Adding - haproxy_backend_httpchk: "" as var removes the httpchk line from the file and fixes the problem for now.