kenichi-shibata

metadata:
  name: {{ .Release.Name }}
  labels:
    # The "heritage" label is used to track which tool deployed a given chart.
    # It is useful for admins who want to see what releases a particular tool
    # is responsible for.
    heritage: {{ .Release.Service }}
    # The "release" convention makes it easy to tie a release to all of the
    # Kubernetes resources that were created as part of that release.
    release: {{ .Release.Name }}

kenichi-shibata

AWS CLI Cheatsheet

http://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html https://www.youtube.com/watch?v=_wiGpBQGCjU

Setup

kenichi-shibata

#https://unix.stackexchange.com/questions/276471/piping-a-command-through-a-color-filter
# more info using man terminfo
function black()   { tput setaf 0; cat; tput sgr0; }
function red()     { tput setaf 1; cat; tput sgr0; }
function green()   { tput setaf 2; cat; tput sgr0; }
function yellow()  { tput setaf 3; cat; tput sgr0; }
function blue()    { tput setaf 4; cat; tput sgr0; }
function magenta() { tput setaf 5; cat; tput sgr0; }
function cyan()    { tput setaf 6; cat; tput sgr0; }
function white()   { tput setaf 7; cat; tput sgr0; }

kenichi-shibata

Tutorial: Designing a GraphQL API

This tutorial was created by Shopify for internal purposes. We've created a public version of it since we think it's useful to anyone creating a GraphQL API.

It's based on lessons learned from creating and evolving production schemas at Shopify over almost 3 years. The tutorial has evolved and will continue to change in the future so nothing is set in stone.

kenichi-shibata

$ kubectl logs pods/cert-manager-776fdbccf8-qbsbh -c ingress-shim

I0321 17:02:11.173760       1 leaderelection.go:174] attempting to acquire leader lease...
I0321 17:02:28.383702       1 leaderelection.go:184] successfully acquired lease kube-system/ingress-shim-controller
I0321 17:02:28.484614       1 controller.go:147] ingress-shim controller: syncing item 'sock-shop/frontend-ingress'
I0321 17:02:28.484886       1 sync.go:85] Certificate "front-end-tls" for ingress "frontend-ingress" already exists, not re-creating
I0321 17:02:28.484993       1 controller.go:161] ingress-shim controller: Finished processing work item "sock-shop/frontend-ingress"
I0321 17:02:28.884265       1 controller.go:147] ingress-shim controller: syncing item 'sock-shop/frontend-ingress'
I0321 17:02:28.884525       1 sync.go:85] Certificate "front-end-tls" for ingress "frontend-ingress" already exists, not re-creating

kenichi-shibata

var arr = [
	{count:20, type:'a'},
	{count:19, type:'b'},
	{count:8, type:'c'},
	{count:34, type:'d'}
];

var expanded = arr.reduce(function(value, d){
	var l = new Array( Number(d.count) )
	for(var i=0;i<d.count;i++){

kenichi-shibata

abc	1	2	3
def	4	5	6
ga	7	9	10
hij	1	5	99

kenichi-shibata

CIDR Conversion Table

CIDR prefix length	Dotted Decimal Netmask	Hexidecimal Netmask	Inverse Netmask	Binary	Number of Classfull Networks	Number of Usable IPs
/1	128.0.0.0	80 00 00 00	127.255.255.255	1000 0000 0000 0000 0000 0000 0000 0000	128 As	2,147,483,646
/2	192.0.0.0	C0 00 00 00	63.255.255.255	1100 0000 0000 0000 0000 0000 0000 0000	64 As	1,073,741,822
/3	224.0.0.0	E0 00 00 00	31.255.255.255	1110 0000 0000 0000 0000 0000 0000 0000	32 As	536,870,910
/4	240.0.0.0	F0 00

kenichi-shibata

Keybase proof

I hereby claim:

• I am kenichi-shibata on github.
• I am kenichishibata (https://keybase.io/kenichishibata) on keybase.
• I have a public key ASBN6WTFAU74OiEm1K3jxkyiRaKx0HJoFl_1dbV7u8jJkgo

To claim this, I am signing this object:

kenichi-shibata

Python Generators

Learn python generators by example.

As Iterators

Using generators (generator functions)

>>> def integers():
    i = 1