Enable systemd-journal-upload Service

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Description

Ubuntu 24.04 must offload rsyslog messages for networked systems in real time and offload standalone systems at least weekly. The systemd-journal-upload service can be enabled with the following command:

$ sudo systemctl enable systemd-journal-upload.service

Rationale

Ubuntu 24.04 must offload rsyslog messages for networked systems in real time and offload standalone systems at least weekly.

Remediation

Shell script

The following script can be run on the host to remediate the issue.

#!/bin/bash

# Remediation is applicable only in certain platforms
if dpkg-query --show --showformat='${db:Status-Status}' 'linux-base' 2>/dev/null | grep -q '^installed$' && { ( [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ] && dpkg-query --show --showformat='${db:Status-Status}' 'systemd-journal-remote' 2>/dev/null | grep -q '^installed$' ); }; then

SYSTEMCTL_EXEC='/usr/bin/systemctl'
"$SYSTEMCTL_EXEC" unmask 'systemd-journal-upload.service'
if [[ $("$SYSTEMCTL_EXEC" is-system-running) != "offline" ]]; then
  "$SYSTEMCTL_EXEC" start 'systemd-journal-upload.service'
fi
"$SYSTEMCTL_EXEC" enable 'systemd-journal-upload.service'

else
    >&2 echo 'Remediation is not applicable, nothing was done'
fi

Ansible playbook

The following playbook can be run with Ansible to remediate the issue.

- name: Gather the package facts
  package_facts:
    manager: auto
  tags:
  - enable_strategy
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed
  - service_systemd-journal-upload_enabled

- name: Enable systemd-journal-upload Service - Enable service systemd-journal-upload
  block:

  - name: Gather the package facts
    package_facts:
      manager: auto

  - name: Enable systemd-journal-upload Service - Enable Service systemd-journal-upload
    ansible.builtin.systemd:
      name: systemd-journal-upload
      enabled: true
      state: started
      masked: false
    when:
    - '"systemd-journal-remote" in ansible_facts.packages'
  when:
  - '"linux-base" in ansible_facts.packages'
  - ( ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
    and "systemd-journal-remote" in ansible_facts.packages )
  tags:
  - enable_strategy
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed
  - service_systemd-journal-upload_enabled