Este conteúdo não está disponível no idioma selecionado.

Chapter 19. Configuring automatic crash dumps by using the kdump RHEL System Role


To manage kdump using Ansible, you can use the kdump role, which is one of the RHEL System Roles available in RHEL 7.9.

Using the kdump role enables you to specify where to save the contents of the system’s memory for later analysis.

19.1. The kdump RHEL System Role

The kdump System Role enables you to set basic kernel dump parameters on multiple systems.

19.2. kdump role parameters

The parameters used for the kdump RHEL System Roles are:

Expand
Role VariableDescription

kdump_path

The path to which vmcore is written. If kdump_target is not null, path is relative to that dump target. Otherwise, it must be an absolute path in the root file system.

19.3. Configuring kdump using RHEL System Roles

You can set basic kernel dump parameters on multiple systems using the kdump System Role by running an Ansible playbook.

Warning

The kdump role replaces the kdump configuration of the managed hosts entirely by replacing the /etc/kdump.conf file. Additionally, if the kdump role is applied, all previous kdump settings are also replaced, even if they are not specified by the role variables, by replacing the /etc/sysconfig/kdump file.

Prerequisites

  • The Ansible Core package is installed on the control machine.
  • You have the rhel-system-roles package installed on the system from which you want to run the playbook.
  • You have an inventory file which lists the systems on which you want to deploy kdump.

Procedure

  1. Create a new playbook.yml file with the following content:

    ---
    - hosts: kdump-test
      vars:
        kdump_path: /var/crash
      roles:
        - rhel-system-roles.kdump
    Copy to Clipboard Toggle word wrap
  2. Optional: Verify playbook syntax.

    # ansible-playbook --syntax-check playbook.yml
    Copy to Clipboard Toggle word wrap
  3. Run the playbook on your inventory file:

    # ansible-playbook -i inventory_file /path/to/file/playbook.yml
    Copy to Clipboard Toggle word wrap
Red Hat logoGithubredditYoutubeTwitter

Aprender

Experimente, compre e venda

Comunidades

Sobre a documentação da Red Hat

Ajudamos os usuários da Red Hat a inovar e atingir seus objetivos com nossos produtos e serviços com conteúdo em que podem confiar. Explore nossas atualizações recentes.

Tornando o open source mais inclusivo

A Red Hat está comprometida em substituir a linguagem problemática em nosso código, documentação e propriedades da web. Para mais detalhes veja o Blog da Red Hat.

Sobre a Red Hat

Fornecemos soluções robustas que facilitam o trabalho das empresas em plataformas e ambientes, desde o data center principal até a borda da rede.

Theme

© 2026 Red Hat
Voltar ao topo