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location_points = [
  [-29.640088, -50.764216],
  [-29.637486, -50.770814],
  [-29.633196, -50.773013]
]

# using Harvesine  formula to calculate the distance
# based on https://github.com/alexreisner/geocoder/blob/master/lib/geocoder/calculations.rb#L72
def distance(location_one, location_two)
  rad_per_deg = Math::PI/180

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esphome:
  name: watertank
  platform: ESP8266
  board: nodemcuv2

wifi:
  ssid: "greenhouse"
  password: "senhasupersecreta"

  # Enable fallback hotspot (captive portal) in case wifi connection fails

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-- vim: ts=4 sw=4 noet ai cindent syntax=lua
--[[
Conky, a system monitor, based on torsmo

Any original torsmo code is licensed under the BSD license

All code written since the fork of torsmo is licensed under the GPL

Please see COPYING for details

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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": "{c6eaf9f4-32a7-5fdc-b5cf-066e8a4b1e40}",

    "profiles":

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-- Your access point's SSID and password
local SSID = "greenhouse"
local SSID_PASSWORD = "senhasupersecreta"
local DEVICE = "device001"
local temperature = 27.5
 
-- configure ESP as a station
wifi.setmode(wifi.STATION)
wifi.sta.config(SSID,SSID_PASSWORD)
wifi.sta.autoconnect(1)

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wget https://downloads.wkhtmltopdf.org/0.12/0.12.5/wkhtmltox_0.12.5-1.bionic_amd64.deb
sudo apt-get install fontconfig libxrender1 xfonts-75dpi xfonts-base
sudo dpkg -i wkhtmltox_0.12.5-1.bionic_amd64.deb

sudo cp /usr/local/bin/wkhtmltopdf /usr/bin/

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This guide explains the way to setup a production server using Capistrano.

Setup Capistrano on LOCAL

• Capistrano is a development gem which assist the developer to run commands on the production server (something like a Heroku toolbelt)
• Hence, it is installed and configured on developer's computer

# Gemfile

# Use Capistrano for deployment

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2018-08-20: Postgres failure

What happened

The PostgreSQL container stopped unexpectedly, was automatically restarted, but suddenly didn't accept any connections anymore. Neither from the API service containers nor from the Macbook over the internet.

Error in logs:

FATAL:  pg_hba.conf rejects connection for host "10.0.1.2", user "postgres", database "******", SSL off

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Ubuntu with Nginx + Ruby 1.9.3 + PostgreSQL 9.1 + Passenger + Papistrano

Update the system

sudo apt-get update

Install some dependencies

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Configuring a SSH Reverse Tunnel sevice

First, let`s assume that:

The server IP is 1.1.1.1.

The user on the server is relayserver_user.

The user on the client is homeserver_user.