Journalctl

This Ansible role manages the configuration of systemd-journald on target hosts.

Description

Copies a customized journald.conf to /etc/systemd/journald.conf
Ensures log retention for one week
Restarts the systemd-journald service when configuration changes
Supports live log streaming via journalctl -f

Overview

Template deployment
The role places your journald.conf.j2 template into /etc/systemd/journald.conf.
Service handler
On change, it notifies a handler to restart systemd-journald.
Monitoring
You can follow logs in real time with journalctl -f.

Cosmos

The diagram places Journalctl in the Infinito.Nexus cosmos: the components it deploys (capabilities), the central services it consumes (dependencies), and its outward reach (federation and bridged external networks).

flowchart LR
    subgraph role [sys-svc-journalctl 💻]
        svc_svc_journalctl["svc-journalctl"]
    end

Solid 1:1 edges are fixed relationships; dashed 0..1 edges are conditional (enabled only in matching deployments); red 0..0 edges are turned off in this role. Node markers show the role's deploy modes (💻 host, 🐳 compose, 🐝 swarm); ❌ marks a service that is explicitly turned off, and ⚙️ an Ansible role dependency declared in meta/main.yml.

Features

Customizable retention and runtime limits
Seamless restarts on config update
Integration with sys-ctl-hlth-journalctl for downstream monitoring

Usage

- hosts: all
  roles:
    - role: sys-svc-journalctl

Credits

Implemented by Kevin Veen-Birkenbach. Part of the Infinito.Nexus Project and maintained by Kevin Veen-Birkenbach. Licensed under the Infinito.Nexus Community License (Non-Commercial).