yatender-oktalk

from selenium import webdriver
from datetime import datetime
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.keys import Keys
from selenium.common.exceptions import NoSuchElementException
from time import time
from time import sleep
import pandas as pd

yatender-oktalk

FROM ethereum/client-go:v1.10.17

ARG ACCOUNT_PASSWORD

ENTRYPOINT sleep infinity

yatender-oktalk

config :tracker, Tracker.PromEx,
  manual_metrics_start_delay: :no_delay,
  drop_metrics_groups: [],
  grafana: [
    host: System.get_env("GRAFANA_HOST", "http://localhost:3000"),
    auth_token: "eyJrIjoienZWWURQYnJVOG5xS1RCdGFmdHdsQ3Q0YUVKVXQ0NVciLCJuIjoidHJhY2tlcl9hcHAiLCJpZCI6MX0=",
    upload_dashboard_on_start: true,
    folder_name: "tracer_dashboard",
    annotate_app_lifecycle: true
  ]

yatender-oktalk

# my global config
global:
  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).

# Alertmanager configuration
alerting:
  alertmanagers:
  - static_configs:

yatender-oktalk

defmodule Sender.Application do
  # See https://hexdocs.pm/elixir/Application.html
  # for more information on OTP Applications
  @moduledoc false

  use Application

  @impl true
  def start(_type, _args) do
    children = [

yatender-oktalk

  ...
  def second_event(delay) do
    OpenTelemetry.Tracer.start_span("second_event_span")
    # again mimicing the same stuff
    Process.sleep(delay)

    # use set_attributes api to add the attributes during the span
    OpenTelemetry.Span.set_attributes([{"delay_data", delay}])
    OpenTelemetry.Tracer.end_span()

yatender-oktalk

defmodule ZipkinRandom do

...

  def hello do
    OpenTelemetry.Tracer.start_span("span_name_1")

    Process.sleep(100)
    
    second_event(200)

yatender-oktalk

defmodule ZipkinRandom.Application do
  # See https://hexdocs.pm/elixir/Application.html
  # for more information on OTP Applications
  @moduledoc false

  use Application

  def start(_type, _args) do
    # register your tracer so that opentelemtry knows that 
    # it needs to start tracing the events

yatender-oktalk

defmodule ExChain.Blockchain do
  @moduledoc """
  This module contains the blockchain related functions
  """
  alias __MODULE__
  alias ExChain.Blockchain.Block
  
  ...
  
  @spec valid_chain?(Blockchain.t()) :: boolean()

yatender-oktalk

defmodule ExChain.BlockchainTest do

...

test "when we temper data in existing chain", %{
      blockchain: blockchain
    } do
      blockchain =
        blockchain
        |> Blockchain.add_block("blockchain-data-block-1")