Tadeu Bernacchi tbernacchi

Resources

https://kubernetes.io/docs/tasks/administer-cluster/access-cluster-api/
https://thenewstack.io/taking-kubernetes-api-spin/ <-- This is just in case.

Main Stuff

There are two ways you can talk to the KUBE API.

Kube-proxy

Start a kube proxy server which will act as a reverse proxy for the client.

Steps to change the URL of Rancher installation and switch from a self-signed certificate to a certificate signed by recognized CA.

Change the Rancher server-url setting to the new URL:
- Navigate to https://<old_rancher_hostname>/g/settings/advanced
- Edit server-url to https://<new_rancher_hostname>
Clear the private CA certificate for the old certificate
- Navigate to https://<old_rancher_hostname>/g/settings/advanced
- Next to cacerts click context menu -> View in API
- Click Edit
- Clear the content of the value field

syncer.go

/*
  https://docs.aws.amazon.com/cli/latest/reference/s3api/put-object-acl.html
  https://docs.aws.amazon.com/zh_cn/AmazonRDS/latest/UserGuide/Concepts.RegionsAndAvailabilityZones.html
  https://github.com/awslabs/aws-go-wordfreq-sample/blob/master/cmd/uploads3/main.go
  https://docs.aws.amazon.com/sdk-for-go/api/aws/

  1. Create bucket in s3 & get the keys
  - login to UI web aws s3 interface

Getting Started

Notes

ETCD

ref

https://rancher.com/docs/k3s/latest/en/installation/kube-dashboard/

install

Deploying the Kubernetes Dashboard

GITHUB_URL=https://github.com/kubernetes/dashboard/releases
VERSION_KUBE_DASHBOARD=$(curl -w '%{url_effective}' -I -L -s -S ${GITHUB_URL}/latest -o /dev/null | sed -e 's|.*/||')
kubectl create -f https://raw.githubusercontent.com/kubernetes/dashboard/${VERSION_KUBE_DASHBOARD}/aio/deploy/recommended.yaml

	#!/bin/bash

	ETCD_VERSION=${ETCD_VERSION:-v3.3.1}

	curl -L https://github.com/coreos/etcd/releases/download/$ETCD_VERSION/etcd-$ETCD_VERSION-linux-amd64.tar.gz -o etcd-$ETCD_VERSION-linux-amd64.tar.gz

	tar xzvf etcd-$ETCD_VERSION-linux-amd64.tar.gz
	rm etcd-$ETCD_VERSION-linux-amd64.tar.gz

	cd etcd-$ETCD_VERSION-linux-amd64

	#!/bin/sh
	# OUTDATED: please refer to the link below for the latest version:
	# https://github.com/rancherlabs/support-tools/blob/master/extended-rancher-2-cleanup/extended-cleanup-rancher2.sh
	docker rm -f $(docker ps -qa)
	docker volume rm $(docker volume ls -q)
	cleanupdirs="/var/lib/etcd /etc/kubernetes /etc/cni /opt/cni /var/lib/cni /var/run/calico /opt/rke"
	for dir in $cleanupdirs; do
	echo "Removing $dir"
	rm -rf $dir
	done

	func fileSize(path string) int64 {
	fi, err := os.Stat(path)
	if err != nil {
	log.Fatal(err)
	}

	return fi.Size()
	}

	#!/bin/bash

	# Define variables
	rg="$1"
	location="$2"
	redisname="$3"

	# Validate parameters
	if [ "$1" = "" ]; then
	echo "Wrong usage! You need inform the parameters."

	kubectl get pods --all-namespaces --sort-by='.metadata.name' -o jsonpath='{.items[].spec.containers[].resources.limits.memory}'

	kubectl get pod --all-namespaces --sort-by='.metadata.name' -o json \| jq -r '[.items[] \| {pod_name: .metadata.name, containers: .spec.containers[] \| [ {container_name: .name, memory_requested: .resources.requests.memory, cpu_requested: .resources.requests.cpu} ] }]'