dpneumo

class Edge
  attr_reader :start, :to, :dist
  def initialize(start:, to:, dist:)
    @start = start
    @to = to
    @dist = dist
  end
end

dpneumo

I needed a tool to add latitude and longitude to seeds.rb in a Rails application.

geocoder.rb uses the Google geocode api. An apikey is required. For limited use it is free. The apikey should be protected from prying eyes. (encryption, .gitignore, ...)

Geocoder#geocode takes an address string in canonical form ( "#{number} #{street} #{city} #{state}" ) as input. It returns latitude and longitude as a hash: { lat: 30.0000, lng: -90.000 }

seed_geocoder.rb extracts the address string from seeds.rb, requests the geocode hash from the Geocoder obj and writes the newseeds.rb file. 

The newseeds file does need some minor additional work to make it a functional seeds.rb.

dpneumo

Copy the 4 scripts to /home/<user>

From /home/<user>:
  ./setup_rootca.sh
  ./setup_blacklakeca.sh

  ipaddr=$(ip route get 8.8.8.8 | awk '{print $7}')
  SUBJ_IP=$ipaddr ./stratus_server_cert.sh

This will:

dpneumo

# Redis sysctl configuration

vm.overcommit_memory = 1

dpneumo

Session in Rails 5.2

• Expiration:

  • Absolute age

    • In config/initializers/session_store.rb:

    Rails.application.config.session_store  :cookie_store,
      key: '_cirrus_session',
      expire_after: 1.days,
      ...
    

dpneumo

[loco@td2 ~]$ sudo cat certfiles.txt
[sudo] password for loco:
total 8
4 -rw-r--r--. 1 root root 2240 Oct 21 23:21 stratuscert.pem
4 -rw-r--r--. 1 root root 2496 Oct 21 23:21 blacklakecacert.pem

dpneumo

# Defines our Vagrant environment
#
# -*- mode: ruby -*-
# vi: set ft=ruby :

require_relative 'bridged_interfaces'

Vagrant.configure("2") do |config|
  # create wisp node
  config.vm.define :wisp do |wisp|

dpneumo

# Diff of the original cc_phone_home and the slightly modified version that supports
# including the server pub_keys in the phone_home payload

# Original: https://github.com/number5/cloud-init/blob/master/cloudinit/config/cc_phone_home.py

# A couple of typos in comment lines in the original were elided to make the diff a bit clearer.
# The Centos7 distros I am using do not provide pub_key_dsa.
# I am talking to a Rails app with phone_home. 
#   A dummy X-CSRF-Token: 1234567890 in the headers simplifies the code on the Rails side.
#   I authenticate the phone_home payload by including a token provided in the 

dpneumo

On CentOS 7.3 with Kernel Version: 3.10.0

1. Allow filesystem support for namespaces: xfs partition: format with ``` mkfs.xfs -m crc=1 -n ftype=1 ``` The current CentOS 7 does this by default.

dpneumo

E:\Projects\otto-getting-started>otto dev
2016/04/08 12:50:33 [INFO] Otto version: 0.2.0  4ff0dce79f07008dcebcf34f118e8ec3dc4f96a5+CHANGES
2016/04/08 12:50:33 [DEBUG] Starting plugin: C:\otto_0.2.0_windows_386\otto.exe []string{"C:\\otto_0.2.0_windows_386\\otto.exe", "plugin-builtin", "app-ruby"}
2016/04/08 12:50:33 [DEBUG] Waiting for RPC address for: C:\otto_0.2.0_windows_386\otto.exe
2016/04/08 12:50:33 [DEBUG] otto.exe: 2016/04/08 12:50:33 [INFO] Otto version: 0.2.0  4ff0dce79f07008dcebcf34f118e8ec3dc4f96a5+CHANGES
2016/04/08 12:50:33 [DEBUG] otto.exe: 2016/04/08 12:50:33 Plugin address: tcp 127.0.0.1:10000
2016/04/08 12:50:33 [DEBUG] reading IP, cache path: E:\Projects\otto-getting-started\.otto\data\dev_ip
2016/04/08 12:50:33 [DEBUG] read ip from cache: 100.70.190.63
2016/04/08 12:50:33 [INFO] Loading app implementation for Tuple: ("ruby", "aws", "simple")
2016/04/08 12:50:33 [DEBUG] core walking app: otto-getting-started