v0lkan · October 24, 2022 01:38 · Oct 24, 2022
diff --git a/kubedump.sh b/kubedump.sh
@@ -0,0 +1,31 @@
+#!/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
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