Nomadic n0madic

n0madic / convertToUTF8.go

Created September 2, 2020 16:12

	func convertToUTF8(str string, origEncoding string) string {
	strBytes := []byte(str)
	byteReader := bytes.NewReader(strBytes)
	reader, _ := charset.NewReaderLabel(origEncoding, byteReader)
	strBytes, _ = ioutil.ReadAll(reader)
	return string(strBytes)
	}

n0madic / k8s-master-backup-create.sh

Created September 12, 2019 06:57

Kubermetes master backup/restore

	#!/bin/bash
	set -euo pipefail

	docker exec -e ETCDCTL_API=3 $(docker ps -q --filter name=k8s_etcd) \
	etcdctl --cacert=/etc/kubernetes/pki/etcd/ca.crt \
	--cert=/etc/kubernetes/pki/etcd/peer.crt \
	--key=/etc/kubernetes/pki/etcd/peer.key \
	snapshot save /var/lib/etcd/snapshotdb

n0madic / checkZeroValue.go

Created July 25, 2019 14:42

Сheck zero value with default


	func checkZeroValue(checkVal interface{}, defaultVal interface{}) interface{} {
	if checkVal == nil \|\| reflect.DeepEqual(checkVal, reflect.Zero(reflect.TypeOf(checkVal)).Interface()) {
	return defaultVal
	}
	return checkVal
	}

n0madic / pod-reader-role.yml

Created May 3, 2019 07:02

Create a role, `pod-reader`, that can list/exec pods and view their logs

	---
	kind: ClusterRole
	apiVersion: rbac.authorization.k8s.io/v1
	metadata:
	namespace: kube-public
	name: pod-reader
	rules:
	- apiGroups: ["extensions", "apps", ""]
	resources: ["pods", "pods/log"]
	verbs: ["get", "list", "watch"]

n0madic / k8s-backup.sh

Created October 26, 2018 14:34

Script that makes backup copies of all kubernetes cluster manifests

	#!/bin/bash

	GLOBALRESOURCES="${GLOBALRESOURCES:-"storageclass clusterrole clusterrolebinding customresourcedefinition"}"
	RESOURCETYPES="${RESOURCETYPES:-"deployment daemonset configmap secrets service ingress networkpolicy statefulset cronjob pvc"}"

	CONTEXT="${KUBE_CONTEXT:-$(kubectl config current-context)}"
	[ -d "${CONTEXT}" ] \|\| mkdir -p "${CONTEXT}"

	kube_export() {
	local NS=$1