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kevinveenbirkenbachandClaude Opus 5
c55f508e05
The cosmos generator linked a consumer to its provider only through an '<role>' in group_names reference or an explicit provides: name. A hard dependency has neither -- pinning the provider on unconditionally is exactly what removes the Jinja reference the generator was reading -- so web-svc-asset's bond to web-svc-file vanished from the diagram the moment it became binding. Match a service key against the provider's own primary key from the registry, in both directions. Services the role turns off drew a solid 1:1 edge, claiming a mandatory relationship for something that carries nothing at deploy time. They now render as a red 0..0 edge; edge merging gained a real precedence so a provider consumed through two keys stays live when only one is off. Named colour, not hex: a '#' opens an entity code in the mermaid lexer and turns the whole diagram into a parse error on GitHub. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
51 lines
2.5 KiB
Markdown
51 lines
2.5 KiB
Markdown
# sys-service
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## Description
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Role to manage **systemd service units** for Infinito.Nexus software stacks.
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It installs or removes unit files, configures runtime behavior, and ensures services are properly deployed.
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## Overview
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- Resets service units by removing old or obsolete definitions.
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- Deploys new service unit files and service scripts.
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- Optionally sets up timers linked to the services.
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- Ensures correct reload/restart behavior across the stack.
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- Provides the shared `files/debug.sh` SPOT for reusable service-failure diagnostics.
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- Exposes `tasks/utils/debug.yml` as the canonical Ansible wrapper around that script.
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## Cosmos
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The diagram places sys-service 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).
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```mermaid
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flowchart LR
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subgraph role [sys-service 💻]
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svc_service["service"]
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end
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```
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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`.
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## Features
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- **Unit Cleanup:** Automated removal of old service units.
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- **Custom Templates:** Supports both `systemctl.service.j2` and `systemctl@.service.j2`.
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- **Timers:** Integrates with `sys-timer` for scheduled execution.
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- **Runtime Limits:** Configurable `RuntimeMaxSec` per service.
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- **Handlers:** Automatic reload/restart of services when definitions change.
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- **Shared Diagnostics:** Centralized `systemctl`/`journalctl`/unit-file diagnostics via `files/debug.sh`.
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- **Wrapper Task:** Reusable Ansible include in `tasks/utils/debug.yml` for calling and printing the shared diagnostics.
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## Further Resources
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- [systemd - Service Units](https://www.freedesktop.org/software/systemd/man/systemd.service.html)
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- [systemd - Timer Units](https://www.freedesktop.org/software/systemd/man/systemd.timer.html)
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- [systemctl](https://www.freedesktop.org/software/systemd/man/systemctl.html)
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## Credits
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Implemented by **[Kevin Veen-Birkenbach](https://www.veen.world)**.
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Part of the [Infinito.Nexus Project](https://s.infinito.nexus/code) and maintained by [Kevin Veen-Birkenbach](https://www.veen.world).
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Licensed under the [Infinito.Nexus Community License (Non-Commercial)](https://s.infinito.nexus/license).
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