Indradhanush Gupta indradhanush

Be Careful with Table Driven Tests and `t.Parallel()`

We Gophers, love table-driven-tests, it makes our unittesting structured, and makes it easy to add different test cases with ease.

Let’s create our table driven test, for convenience, I chose to use t.Log as the test function. Notice that we don't have any assertion in this test, it is not needed to for the demonstration.

func TestTLog(t *testing.T) {
	t.Parallel()

A collection of The Morning Paper posts relating to containers, operating systems etc.

In order of first appearance in The Morning Paper.

Installing Docker CE on Ubuntu 17.10 Artful Aardvark

As of 20/10/2017, a release file for Ubuntu 17.10 Artful Aardvark is not available on Download Docker.

If you are used to installing Docker to your development machine with get-docker script, that won't work either. So the solution is to install Docker CE from the zesty package.

sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

FINALLY no need for tricks!

bonus tip: for more darkness > https://darkreader.org/

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Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

	(defun has-space-at-boundary-p (string)
	"Check whether STRING has any whitespace on the boundary.
	Return 'left, 'right, 'both or nil."
	(let ((result nil))
	(when (string-match-p "^[[:space:]]+" string)
	(setq result 'left))
	(when (string-match-p "[[:space:]]+$" string)
	(if (eq result 'left)
	(setq result 'both)
	(setq result 'right)))

	package main

	import (
	"context"
	"errors"
	"fmt"
	"os/signal"
	"syscall"
	"time"

	minikube start --kubernetes-version=v1.7.0 --extra-config=apiserver.Authorization.Mode=RBAC

	kubectl create clusterrolebinding add-on-cluster-admin --clusterrole=cluster-admin --serviceaccount=kube-system:default

	minikube dashboard