t04glovern

# on ckamaster1
sudo -i
apt install docker.io kubeadm=1.15.1-00 kubectl=1.15.1-00 kubelet=1.15.1-00
kubeadm init --config=kubeadm-config.yaml --upload-certs| tee kubeadm-init.out
## OUTPUT
# kubeadm join ckamaster:6443 --token 4gttsi.cpkvihy9jwb8o8aq \
#     --discovery-token-ca-cert-hash sha256:c70ef81c9dd7064432a255b9f617e8c3c83b4cce64db17e2518c32b0e3aaf460
exit
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

nathan815

version: "2.1"

services:
  namenode:
    build: ./namenode
    container_name: namenode
    volumes:
      - hadoop_namenode:/hadoop/dfs/name
    environment:
      - CLUSTER_NAME=test

bradtraversy

MongoDB Cheat Sheet

Show All Databases

show dbs

Show Current Database

themonster2015

version: "2"

services:
  namenode:
    build: ./namenode
    image: bde2020/hadoop-namenode:1.1.0-hadoop2.7.1-java8
    container_name: namenode
    volumes:
      - hadoop_namenode:/hadoop/dfs/name
    environment:

strongjz

Tools

• Kops https://github.com/kubernetes/kops/blob/master/docs/README.md
• Kubectl https://kubernetes.io/docs/tasks/tools/install-kubectl/
• kubespy https://blog.pulumi.com/kubespy-trace-a-real-time-view-into-the-heart-of-a-kubernetes-service
• kops https://icicimov.github.io/blog/virtualization/Kubernetes-Cluster-in-AWS-with-Kops/

Presentations

donilboudo

import com.google.gson.JsonObject;
import com.pubnub.api.PNConfiguration;
import com.pubnub.api.PubNub;
import com.pubnub.api.callbacks.PNCallback;
import com.pubnub.api.callbacks.SubscribeCallback;
import com.pubnub.api.enums.PNStatusCategory;
import com.pubnub.api.models.consumer.PNPublishResult;
import com.pubnub.api.models.consumer.PNStatus;
import com.pubnub.api.models.consumer.pubsub.PNMessageResult;
import com.pubnub.api.models.consumer.pubsub.PNPresenceEventResult;

am-MongoDB

from pymongo import MongoClient

def addUser(database, user):
	return database.customers.insert_one(user).inserted_id


client = MongoClient(port=27017)
db=client.store

# This is the object that the application would be working with anyway and

jflasher

Currently, only data within the last 90 days is available via the OpenAQ API. However, there is much more data available on OpenAQ and a variety of different access mechanisms. Note also that there is work under way to bring back to the API a mechanism to access the data older than 90 days, details here.

If you're looking to query across all the data or even easily export the data (or a subset of it), the easiest way to do that currently is using a service like Amazon Athena. I'll provide some directions on how to do that below, but at a high level, this will let you make any query of the entire dataset that you'd like (written in SQL). I'll also provide some sample queries so you can see what's possible.

On to the directions!

1. You will need to create an AWS account if you don't currently have one, you can start this process at htt

mojodna

--
-- This will register the "planet" table within your AWS account
--
CREATE EXTERNAL TABLE planet (
  id BIGINT,
  type STRING,
  tags MAP<STRING,STRING>,
  lat DECIMAL(9,7),
  lon DECIMAL(10,7),
  nds ARRAY<STRUCT<ref: BIGINT>>,

marceloinacio

import com.pubnub.api.PubNubException;
import com.pubnub.api.PubNubUtil;

import javax.net.ssl.HttpsURLConnection;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Date;