eshleebien

Become a Certificate Authority

Create config

>crt.cfg cat <<-EOF
RANDFILE = NV::HOME/.rnd
[ req ]
default_bits = 2048
default_keyfile = ca.key

eshleebien

HOSTNAME=`curl -s http://169.254.169.254/latest/meta-data/local-hostname`
SERVER=$1
TOKEN=$2

curl -s --insecure -k -v -H "Accept: application/json" -H "Authorization: Bearer $TOKEN" -XPATCH -d '{"spec":{"unschedulable":true}}' -H "Content-Type: application/merge-patch+json" $SERVER/api/v1/nodes/$HOSTNAME

for each in $(curl -s -k -H "Authorization: Bearer $TOKEN" --insecure -XGET $SERVER/api/v1/namespaces  | jq -r '.items[].metadata.name');
  do arr=($(curl -s -k -H "Authorization: Bearer $TOKEN" --insecure -XGET $SERVER/api/v1/namespaces/$each/pods  | jq --arg node $HOSTNAME -r '.items[] | select(.spec.nodeName == $node) | .metadata.name'));
  for i in  ${arr[@]};

eshleebien

Hopefully helped another k8s newbie with the following. The question was, how do you update a single key in a secret in k8s? I don't know anything about secrets but I will probably want to know this in the future, so here we go.

First, to create a dummy secret:

apiVersion: v1
kind: Secret
metadata:
  name: test-secret
data:

tkuther

apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: filebeat
  namespace: kube-system
  labels:
    k8s-app: filebeat
spec:
  template:
    metadata:

huangzhuolin

Create-react-app

Create React apps with no build configuration.

Thanks to create-react-app. It's saves a lot of my time. I remember several months ago I had to setup a lot just for a react app, webpack, babel, test environment and so on... Fortunately, everything becomes easy now. Though you have many choices of start boiler plate, you worth trying this.

React router

If you are build a SPA with react, you probably use react-router.

andrewodri

Fargate deployment

• Awesome ECS lost: https://github.com/nathanpeck/awesome-ecs#aws-fargate
• How to access KMS/SSM parameters from a Docker instance: https://aws.amazon.com/blogs/compute/managing-secrets-for-amazon-ecs-applications-using-parameter-store-and-iam-roles-for-tasks/
  • Encryptions keys: https://console.aws.amazon.com/iam/home?region=us-east-1#/encryptionKeys/us-east-1
  • Parameters: https://console.aws.amazon.com/systems-manager/parameters?region=us-east-1
• Preventing HTTP 503 with transparent SSL: https://codex.wordpress.org/Administration_Over_SSL#Using_a_Reverse_Proxy
• Fargate CLI: http://somanymachines.com/fargate/
• Mutliple fargate instaces with single ELB: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-listeners.html#listener-rules

ccapndave

seleniumArgs = {
  baseURL: 'https://selenium-release.storage.googleapis.com',
  version: '2.48',
  drivers: {
    chrome: {
      version: '2.25',
      arch: process.arch,
      baseURL: 'https://chromedriver.storage.googleapis.com'
    },
    firefox: {

owenallenaz

var dns = require("dns");
var http = require("http");
var fs = require("fs");
var net = require("net");

dns.setServers(["127.0.0.1"]);

var makeCallLookup = function(cb) {
	dns.lookup("testSlow.com", cb);
}

amitkgupta

kubernetes.click-ops

1. Generalizing to your own Kubernetes cluster
2. A note on non-standard kops and nodeup binaries
3. Installing required binaries
4. Setting up "permanent" resources
5. Creating the cluster
6. Administering the cluster
7. Other operations on the cluster
8. Updating your local state

milmazz

The Imposter's Handbook

This a collection of interesting links found in The Imposter's Handbook by Rob Conery.

Content:

• Introduction
• A Little History
• The Tools
• Customizing The Terminal