allanlei

#!/usr/bin/env python
 
from binascii import hexlify
import hashlib
 
# If a secure random number generator is unavailable, exit with an error.
try:
    import Crypto.Random.random
    secure_random = Crypto.Random.random.getrandbits
except ImportError:

allanlei

Find the corresponding nvidia driver for COS

1. gsutil ls gsutil ls gs://cos-tools-asia/${COS_VERSION}/extensions/gpu
2. Pick an available version and update annotations.version

Creating a Node pool with a specific driver

1. Create nodepool with taint nvidia.com/gpu-driver-version=DRIVER_VERSION_MAJOR
2. Create corresponding daemonset driver installer with nvidia.com/gpu-driver-version=DRIVER_VERSION_MAJOR

allanlei

from mongoengine.fields import GenericEmbeddedDocumentField as MDBGenericEmbeddedDocumentField

class GenericEmbeddedDocumentField(MDBGenericEmbeddedDocumentField):
    def __init__(self, *args, **kwargs):
        self.cls_field = kwargs.pop('cls_field', '_cls')
        super(GenericEmbeddedDocumentField, self).__init__(*args, **kwargs)

    def to_python(self, value):
        cls = None
        if isinstance(self.cls_field, (str, unicode)):

allanlei

ffmpeg -stream_loop -1 -i bbb.mp4 -filter_complex "\
  [0:v]split=2[base][overlay];
  [overlay]gblur=5,format=yuva444p,geq=r='r(X,Y)':a='abs(255*sin(T))'[overlay];
  [base][overlay]overlay[out]" \
  -map "[out]" output.mp4

allanlei

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: nvidia-driver-installer-cos
  namespace: kube-system
  labels:
    k8s-app: nvidia-driver-installer-cos
spec:
  selector:
    matchLabels:

allanlei

from twisted.web.resource import Resource
from twisted.internet import reactor
from twisted.web.static import File
from twisted.web import server
from twisted.application import internet, service
from twisted.application.app import startApplication
from twisted.web.wsgi import WSGIResource
from twisted.runner.procmon import ProcessMonitor

from twisted.web import vhost, static

allanlei

ffmpeg -i source.mp4 -filter_complex \
  "[0:v]split=2[base][blurred]; \
  [blurred]boxblur=luma_radius=50:chroma_radius=25:luma_power=1[blurred]; \
  [blurred]fade=type=in:start_time=5:duration=1:alpha=1[blurred-with-fadein]; \
  [base][blurred-with-fadein]overlay[blurout]" \
  -map "[blurout]" blurout.mp4

allanlei

This is the rough equivalent of

openssl smime -sign
    -signer cert.crt
    -inkey cert.key
    -certfile intermediate.pem 
    -nodetach 
    -outform der 
    -in mdm.mobileconfig 
 -out mdm-signed.mobileconfig

allanlei

import paho.mqtt.client as mqtt


client = mqtt.Client(protocol=mqtt.MQTTv311)
client.connect('iot.eclipse.org', port=1883, keepalive=60)
client.publish('update', 'hello world')

allanlei

ffmpeg \
  -vsync 0 \
  -hwaccel cuvid -c:v h264_cuvid \
  -i https://twitch-event-engineering-public.s3.amazonaws.com/sync-footage/Sync-Footage-V1-H264.mp4 \
  -filter_complex " \
    [0:v]scale_npp=1280:720[out]
  " -map '[out]' -y -c:v h264_nvenc -y output.mp4