Kubernetes Fury Distribution
Container Image Sync

This is a simple mechanism that pulls and pushes or builds container images based on a configuration file (yaml).

The main goal for this repository is to have a central location used to sync on our public SIGHUP registry all the upstream images used by all the Fury modules.

The goal of this repository is twofold: build custom images and sync upstream ones used by all the Fury modules on our public SIGHUP registry.

Features:

• Configurable via YAML files
• Build custom images
• Skips images if the layers between src and dest are the same using skopeo
• Everything is executed with two bash scripts: sync.sh and single_sync.sh

How it works

Inside the folder modules/ there is a subfolder for each KFD module with an images.yml file.

Each images.yml file has to have a root attribute: images and its value is an array of objects:

  - name: # Simple description of the image
    source: # Source image. Where to pull the image
    tag: # Tags to sync
      - "xxx"
    destination:
      - # Destination registry

or (when building):

  - name: # Simple description of the image
    source: # Local name used by the newly built image
    build: # Build parameters
      context: # Path where the Dockerfile is stored (relative to images.yml file)
      args: # Build arguments
        - name: # Build argument name
          value: # Build argument value
    tag: # New image tag
      - "xxx"
    destination:
      - # Destination registry

Example images.yml:

  - name: Alpine
    source: docker.io/library/alpine
    tag:
      - "3"
      - "3.12"
      - "3.13"
      - "3.14"
    destinations:
      - registry.sighup.io/fury/alpine

  - name: Grafana
    source: grafana
    build:
      context: custom/grafana
      args:
        - name: GF_INSTALL_PLUGINS
          value: grafana-piechart-panel
    tag:
      - "8.5.5"
    destinations:
      - registry.sighup.io/fury/grafana/grafana

Automated execution

This automation runs once a day: "0 2 * * *" and every time someone pushes to the main branch.