Helm Images

This helm plugins helps in identifying all images that would be part of helm chart deployment.

Introduction

Identifying all images just before the deployment of the helm chart is not a straightforward task.

To make it simple, the helm plugin is leveraged. This can be installed as an add-on to the helm.

It helps in filtering images based on the Kubernetes type. It also helps in filtering images based on a registry which it is part of.

helm images get prometheus-standalone ~/prometheus-setup/prometheus-standalone -f ~/prometheus-setup/prometheus-standalone/values-standalone-1.yaml
# executing above command would yield results something like below:
quay.io/prometheus/node-exporter:v1.1.2
k8s.gcr.io/kube-state-metrics/kube-state-metrics:v2.0.0
quay.io/prometheus/alertmanager:v0.21.0
prom/pushgateway:v1.3.1
jimmidyson/configmap-reload:v0.5.0
quay.io/prometheus/alertmanager:v0.21.0

Installation

helm plugin install https://github.com/nikhilsbhat/helm-images

Use the executable just like any other go-cli application.

Usage

helm images [command] [flags]

Make sure appropriate command is used for the actions, to check the available commands and flags use helm images --help

Lists all images that would be part of helm deployment would be listed.

Usage:
  images [command] [flags]

Available Commands:
  completion  generate the autocompletion script for the specified shell
  get         Fetches all images part of deployment
  help        Help about any command
  version     Command to fetch the version of helm-images installed

Flags:
  -h, --help                     help for images
      --set stringArray          set values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2)
      --set-file stringArray     set values from respective files specified via the command line (can specify multiple or separate values with commas: key1=path1,key2=path2)
      --set-string stringArray   set STRING values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2)
  -f, --values ValueFiles        specify values in a YAML file (can specify multiple) (default [])


Use "images [command] --help" for more information about a command.

Commands

get

Lists all images that matches the pattern or part of specified registry.

Usage:
  images get [RELEASE] [CHART] [flags]

Flags:
  -h, --help                 help for get
      --image-regex string   regex used to split helm template rendered (default "---\\n# Source:\\s.*.")
  -k, --kind strings         kubernetes app kind to fetch the images from (if not specified all kinds are considered)
  -r, --registry strings     registry name (docker images belonging to this registry)
  -u, --unique               enable the flag if duplicates to be removed from the images that are retrieved (disabled by default)

Global Flags:
      --set stringArray          set values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2)
      --set-file stringArray     set values from respective files specified via the command line (can specify multiple or separate values with commas: key1=path1,key2=path2)
      --set-string stringArray   set STRING values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2)
  -f, --values ValueFiles        specify values in a YAML file (can specify multiple) (default [])