How does it know which hosts use which containers?

The skill performs a recursive grep across your .nix files and consults a mapping reference to determine container-to-host relationships.

What is the primary file it updates?

The skill primarily manages updates within 'apps/fetcher/containers-sha.nix' where the container digests are stored.

What deployment tools does this skill require?

This skill is designed to work with Colmena for NixOS deployments and uses 'just' as a command runner for updating digests.

Does it support parallel deployments?

Yes, the workflow specifically includes steps to run Colmena deployments in parallel when hosts are independent to improve efficiency.

Can it handle multiple registries?

Yes, it supports all major registries including Docker Hub (docker.io), GitHub Container Registry (ghcr.io), and LinuxServer.io (lscr.io).

Nix Container Update & Deployment

Name: Nix Container Update & Deployment
Author: fred-drake

byfred-drake

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Deployment & DevOps

Automates fetching container digests and deploying updated NixOS hosts using Colmena and Just.

About

This skill streamlines the maintenance of containerized applications within a NixOS environment by automating the entire update lifecycle. It orchestrates fetching the latest container SHAs, identifying which specific hosts are impacted by these changes through Nix file analysis, and executing coordinated deployments via Colmena. It is ideal for developers and home lab enthusiasts managing complex Nix flakes who want to ensure their services are always running the latest container versions with verifiable deployment reporting.

Key Features

Comprehensive reporting of update statuses and deployment results
Intelligent mapping of container updates to specific NixOS hosts
15 GitHub stars
Automated fetching and updating of container SHAs/digests
Streamlined deployment orchestration using Colmena
Integration with Just command runners for standardized workflows

Use Cases

Updating containerized services across a multi-node NixOS home lab
Automating the rollout of security patches for container images in a Nix environment
Synchronizing container versions across staging and production Nix hosts

About

Key Features

Comprehensive reporting of update statuses and deployment results
Intelligent mapping of container updates to specific NixOS hosts
15 GitHub stars
Automated fetching and updating of container SHAs/digests
Streamlined deployment orchestration using Colmena
Integration with Just command runners for standardized workflows

Use Cases

Updating containerized services across a multi-node NixOS home lab
Automating the rollout of security patches for container images in a Nix environment
Synchronizing container versions across staging and production Nix hosts