Check for Available Helm Chart Updates

check_for_available_helm_chart_updates.txt

namespace="${NAMESPACE}" context="${CONTEXT}"; helm_releases=$(kubectl get HelmRelease.helm.toolkit.fluxcd.io -n "$namespace" --context "$context" -o json | jq -r '.items[] | .metadata.name'); echo "$helm_releases" | while IFS= read -r release; do chart_details=$(kubectl get HelmRelease.helm.toolkit.fluxcd.io "$release" -n "$namespace" --context "$context" -o json | jq -r '.spec.chart.spec // empty'); if [[ -n "$chart_details" ]]; then chart_kind=$(echo "$chart_details" | jq -r '.sourceRef.kind // empty'); chart_name=$(echo "$chart_details" | jq -r '.chart // empty'); chart_source_name=$(echo "$chart_details" | jq -r '.sourceRef.name // empty'); chart_namespace=$(echo "$chart_details" | jq -r '.sourceRef.namespace // empty'); chart_version=$(echo "$chart_details" | jq -r '.version // "N/A"'); if [[ "$chart_kind" == "HelmRepository" && -n "$chart_name" && -n "$chart_namespace" ]]; then repo_url=$(kubectl get helmrepositories.source.toolkit.fluxcd.io "$chart_source_name" -n "$chart_namespace" --context "$context" -o json | jq -r '.spec.url // empty'); if [[ -n "$repo_url" ]]; then temp_repo_name="$chart_source_name-temp-$release"; add_repo=$(helm repo add "$temp_repo_name" "$repo_url"); available_chart_version=$(helm search repo "$temp_repo_name"/"$chart_name" --version ">$chart_version" --output json | jq -r '.[].version'); if [[ -n "$available_chart_version" ]]; then sorted_versions=($(echo "${available_chart_version[@]}" | tr ' ' '\n' | sort -V)); available_version=${sorted_versions[-1]}; version_update_available="True"; else available_version="N/A"; version_update_available="False"; fi; remove_repo=$(helm repo remove "$temp_repo_name"); else available_version="N/A"; version_update_available="False"; fi; else available_version="N/A"; version_update_available="False"; fi; else chart_name="N/A"; chart_namespace="N/A"; chart_version="N/A"; available_version="N/A"; version_update_available="False"; fi; echo "Release: $release | Chart: $chart_namespace/$chart_name | Installed Version: $chart_version | Available Update: $version_update_available | Available Version: $available_version"; done