grab all available kubeconfigs from the rancher management console and consolidate

rancher-login.sh

#!/bin/bash

# this script queries the rancher management console defined via
# auth.env to fetch all of the currently available kubeconfig files
# 
# those kubeconfig files are then consolidated into a single kubeconfig
# in the default location
#
# after this script is run - you can use kctx to easily switch between
# available clusters

set -e
source ./auth.env
rancher login $RANCHER_MGMT_URL -t $RANCHER_MGMT_TOKEN --context $RANCHER_MGMT_CONTEXT
mkdir -p .kube
for cluster in $(rancher cluster ls --format '{{.Cluster.ID}}'); do
  rancher cluster kf $cluster > .kube/$cluster.kubeconfig
done
KUBECONFIG="$KUBECONFIG:$(find .kube -type f | tr '\n' :)" kubectl config view --flatten > ~/.kube/config
rm -rf .kube