matiferrigno

# ~/.jq/jwt.jq
#
# Ex.
#   jq -R 'import "jwt" as jwt; jwt::decode' /tmp/jwt_to_decode
#
# this is a alternative to: 
#   jq -R 'split(".") | .[0],.[1] | @base64d | fromjson' /tmp/jwt_to_decode
#
# still possible to use an alias for either command but this appears to be more scalable.

benc-uk

Official Exam Links & Resources

• Main certification landing page
• Handbook
• Importannt Tips
• CKAD FAQ

The Exam Itself

• CNCF Training Portal
• System Checker

soofaloofa

GET https://api.example.com/player/1234567890
{
    "collection": {
        "version": "1.0",
        "href": "https://api.example.com/player",
        "items": [
            {
                "href": "https://api.example.com/player/1234567890",
                "data": [
                      {"name": "playerId", "value": "1234567890", "prompt": "Identifier"},

lukeplausin

# Count total EBS based storage in AWS
aws ec2 describe-volumes | jq "[.Volumes[].Size] | add"
# Count total EBS storage with a tag filter
aws ec2 describe-volumes --filters "Name=tag:Name,Values=CloudEndure Volume qjenc" | jq "[.Volumes[].Size] | add"
# Describe instances concisely
aws ec2 describe-instances | jq '[.Reservations | .[] | .Instances | .[] | {InstanceId: .InstanceId, State: .State, SubnetId: .SubnetId, VpcId: .VpcId, Name: (.Tags[]|select(.Key=="Name")|.Value)}]'
# Wait until $instance_id is running and then immediately stop it again
aws ec2 wait instance-running --instance-id $instance_id && aws ec2 stop-instances --instance-id $instance_id

# Get 10th instance in the account

Fusl

# Windows (receiver) side:
.\ffplay.exe -nodisp -ac 2 -acodec pcm_u8 -ar 48000 -analyzeduration 0 -probesize 32 -f u8 -i udp://0.0.0.0:18181?listen=1

# Linux (transmitter) side:
pactl load-module module-null-sink sink_name=remote
ffmpeg -f pulse -i "remote.monitor" -ac 2 -acodec pcm_u8 -ar 48000 -f u8 "udp://RECEIVER:18181"
pavucontrol # Change the default output to the Null sink or move single applications to this "output" device.