indradhanush

## based on the blogpost here: http://blog.sjas.de/posts/colored-iptables-output.html

iptables --line-numbers -vnL |\
  sed -E 's/^Chain.*$/\x1b[4m&\x1b[0m/' |\
  sed -E 's/^num.*/\x1b[33m&\x1b[0m/' |\
  sed -E '/([^y] )((REJECT|DROP))/s//\1\x1b[31m\3\x1b[0m/' |\
  sed -E '/([^y] )(ACCEPT)/s//\1\x1b[32m\2\x1b[0m/' |\
  sed -E '/([ds]pt[s]?:)([[:digit:]]+(:[[:digit:]]+)?)/s//\1\x1b[33;1m\2\x1b[0m/' |\
  sed -E '/([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}(\/([[:digit:]]){1,3}){0,1}/s//\x1b[36;1m&\x1b[0m/g' |\
  sed -E '/([^n] )(LOGDROP)/s//\1\x1b[33;1m\2\x1b[0m/'|\

indradhanush

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

In order of first appearance in The Morning Paper.

• On the duality of operating system structures
• Why threads are a bad idea
• Why events are a bad idea
• Unikernels: library operating systems for the cloud
• The scalable commutativity rule: designing scalable software for multicore processors
• Jitsu: just-in time summoning of unikernels

indradhanush

#!/bin/bash -eux
ARCH=${ARCH:-linux}
K8S_VER=${K8S_URL:-v1.1.8}
K8S_URL=https://storage.googleapis.com/kubernetes-release/release 
curl -Lo /usr/local/bin/kubectl ${K8S_URL}/${K8S_VER}/bin/$ARCH/amd64/kubectl
chmod +x /usr/local/bin/kubectl

indradhanush

$ dep ensure
Solving failure: No versions of github.com/habitat-sh/habitat-operator met constraints:
	v0.5.1: Could not introduce github.com/habitat-sh/habitat-operator@v0.5.1, as it has a dependency on k8s.io/api with constraint kubernetes-1.9.0, which has no overlap with existing constraint kubernetes-1.9.1 from github.com/kubernetes-incubator/service-catalog@v0.1.14
	v0.5.0: Could not introduce github.com/habitat-sh/habitat-operator@v0.5.0, as it has a dependency on k8s.io/api with constraint kubernetes-1.9.0, which has no overlap with existing constraint kubernetes-1.9.1 from github.com/kubernetes-incubator/service-catalog@v0.1.14
	v0.4.0: Could not introduce github.com/habitat-sh/habitat-operator@v0.4.0, as its subpackage github.com/habitat-sh/habitat-operator/pkg/apis/habitat/v1beta1 is missing. (Package is required by (root).)
	v0.3.0: Could not introduce github.com/habitat-sh/habitat-operator@v0.3.0 due to multiple problematic subpackages:
	Subpackage github.com/habitat-sh/habitat-operator/pkg/apis/ha

indradhanush

Error

Error: release habitat-service-broker failed: clusterroles.rbac.authorization.k8s.io "habitat-service-broker-habitat-service-broker" already exists
make: *** [Makefile:35: deploy-helm] Error 1

Steps to reproduce

Minkube version: 0.25.0

indradhanush

// -*- mode:go;mode:go-playground -*-
// snippet of code @ 2018-04-06 15:35:29

// === Go Playground ===
// Execute the snippet with Ctl-Return
// Remove the snippet completely with its dir and all files M-x `go-playground-rm`

package main

import (

indradhanush

package main

import (
	"fmt"
	"os"

	// osb "github.com/pmorie/go-open-service-broker-client/v2"
	"github.com/pmorie/osb-broker-lib/pkg/broker"
	"gopkg.in/yaml.v2"
)

indradhanush

apiVersion: v1
kind: ServiceAccount
metadata:
  name: habitat-broker
  namespace: habitat-broker
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: habitat-broker

indradhanush

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

indradhanush

• checkbox is done with the two brackets next to the P key
• checkbox is done with the two brackets next to the P key
• checkbox is done with the two brackets next to the P key
• checkbox is done with the two brackets next to the P key