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/// Prints the heart rate zones assuming a 5 zones distribution with 
/// simple ranges. Adjust to your liking.
fn print_zones(resting_heart_rate: u16, max_heart_rate: u16) {
    let zones = [(50, 60), (60, 70), (70, 80), (80, 90), (90, 100)];
    let heart_rate_reserve = max_heart_rate - resting_heart_rate;

    for (index, (lower, upper)) in zones.iter().enumerate() {
        let lower = resting_heart_rate + heart_rate_reserve * lower / 100;
        let upper = resting_heart_rate + heart_rate_reserve * upper / 100;

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{
  "format_version": 1,
  "package_id": "path+file:///Users/sziebell/dev/temp/axum/axum-core#0.4.3",
  "name": "axum-core",
  "version": "0.4.3",
  "source": "/Users/sziebell/dev/temp/axum/axum-core",
  "target": {
    "kind": [
      "lib"
    ],

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Setup

To set up a minimal environment with Elasticsearch and Docker

• install Docker for your OS
• install Docker Compose (optional)

Docker

To run Elasticsearch the following docker command uses the official Docker image. Open your terminal and run:

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// To view the default settings, hold "alt" while clicking on the "Settings" button.
// For documentation on these settings, see: https://aka.ms/terminal-documentation

{
    "$schema": "https://aka.ms/terminal-profiles-schema",

    "defaultProfile": "{2c4de342-38b7-51cf-b940-2309a097f518}",

    "profiles":

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Example stack trace in Ruby

divide_by_zero.rb:2:in `/': divided by 0 (ZeroDivisionError)
        from divide_by_zero.rb:2:in `divide'
        from divide_by_zero.rb:5:in `<main>'

The following analyzer is a first draft of how to split / analyze the stack trace. The user should be able to search for file name, line number, exception. Only the first two lines of the stack trace are analyzed.

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Percolator Query

This setup shows how to use a percolator query, for more details see Percolator Query documentation.

The following setup was tested with Elasticsearch 6.5.

Create a new index with a given mapping, the document only accepts a message field

curl -X PUT 'http://localhost:9200/percolator' -H 'Content-Type: application/json' -d '{

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# class to test behaviour of Proc and to_proc
class ProcTest
  def initialize(text='')
    @text = text
  end

  def say
    puts "say #{text}"
  end

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Consul API

The following commands assume a running consul instance on localhost:8500.

Agent + Health

List all checks from local node

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HOSTS:
  centos-7-x64-master:
    roles:
      - master
      - agent
    platform: el-7-x86_64
    hypervisor: vagrant
    box: puppetlabs/centos-7.2-64-nocm
    vagrant_memsize: 2048   # increase memory or OutOfMemoryError will occur
    vagrant_cpus: 2         # to speed things up a little

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# put the following content into ~/.vagrant/Vagrantfile
# install plugin vagrant-proxyconf: vagrant plugin install vagrant-proxyconf

VAGRANTFILE_API_VERSION = "2"

def get_proxy_url
  # Doesn't support different proxies for different protocols at present
  host_proxy = ENV['http_proxy'] || ENV['HTTP_PROXY'] || ENV['https_proxy'] || ENV["HTTPS_PROXY"]
  if host_proxy
    uri = URI(host_proxy)