so0k

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

petergloor

package main

import "fmt"

// Constant definitions
const MaxUint = ^uint(0)
const MinUint = 0

const MaxInt = int(^uint(0) >> 1)
const MinInt = -MaxInt - 1

thomasdarimont

public class ReportCpuCount {
    public static void main(String[] args) throws Exception{
        while(true){
           System.out.printf("#Found %d CPUs%n", Runtime.getRuntime().availableProcessors());
           Thread.sleep(1000);
        }
    }
}

nikhita

How to update the Go version

System: Debian/Ubuntu/Fedora. Might work for others as well.

1. Uninstall the exisiting version

As mentioned here, to update a go version you will first need to uninstall the original version.

To uninstall, delete the /usr/local/go directory by:

anokun7

package main

import (
	"net/http"
)

func main() {
	finish := make(chan bool)
	
	server8001 := http.NewServeMux()

suconghou

package main

import (
	"fmt"
	"io"
	"net"
	"os"
	"sync"
)

filewalkwithme

{"hola":"mundo","number":1}

silkeh

package main

import (
	"encoding/json"
	"flag"
	"io/ioutil"
	"log"
	"net"
	"os"
	"os/signal"

miguelmota

knowledge dump on container runtimes

KataContainers
- image coupled with kernel 
- light vm layer
- can run in nested virturalization environments if hardware supports and you can enable it in bios (ex. only bare metal EC2 instances, limits many cloud providers)
- slower startup time
- OCI compliant
- previously known as ClearContainers by Intel

DaisukeMiyamoto

import boto3
from boto3.session import Session


def assume_role(arn, session_name):
    """aws sts assume-role --role-arn arn:aws:iam::00000000000000:role/example-role --role-session-name example-role"""

    client = boto3.client('sts')
    account_id = client.get_caller_identity()["Account"]
    print(account_id)