Dump everything in your Kubernetes cluster into folders a YAML files

kubedump.sh

#!/usr/bin/env bash

# Dumps everything in your Kubernetes cluster into folders a YAML files.
# Use it at your own risk.

set -e

CONTEXT=“$1”

if [[ -z ${CONTEXT} ]]; then
  echo “Usage: $0 KUBE-CONTEXT”
  exit 1
fi

NAMESPACES=$(kubectl —context ${CONTEXT} get -o json namespaces|jq ‘.items[].metadata.name’|sed “s/\”//g”)

RESOURCES=$(kubectl api-resources —namespaced -o name | tr “\n” “ “)
# Note that the above will put some presure on the API server, you might want to
# use something less agressive, similar to this:
# RESOURCES=“configmap secret daemonset deployment service hpa”

for ns in ${NAMESPACES};do
  for resource in ${RESOURCES};do
    rsrcs=$(kubectl —context ${CONTEXT} -n ${ns} get -o json ${resource}|jq ‘.items[].metadata.name’|sed “s/\”//g”)
    for r in ${rsrcs};do
      dir=“${CONTEXT}/${ns}/${resource}”
      mkdir -p “${dir}”
      kubectl —context ${CONTEXT} -n ${ns} get -o yaml ${resource} ${r} > “${dir}/${r}.yaml”
    done
  done
done