Tag: docker

• #Nginx: Docker, Flask and Let's Encrypt (SSL)

  Cloud Platforms | 5 min | 13055

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  docker

  nginx

  covid-19

  flask

  let's encrypt

  ssl

  reverse proxy

  certificate

  This tutorial is a follow-up of M5Stack: Fresh air checker helps you to stay safe from #COVID-19, in which I explained how to build a CO2 measuring device using M5Stacks and SG30 sensors. These sensors can help to prevent Covid-19 spread in a room. The collected measurements were sent to the Google Cloud Platform and a microservice offered them on a Website or a RestAPI using HTTP. This tutorial adds an Nginx microservice to offer the Website and RestAPI over HTTPS.

  Let's start with some explanation about how HTTPS works: The encryption and security functionalities for HTTP are implemented thr...

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• #VSCode: C++ Development and Debugging using containers

  General | 5 min | 28076

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  docker

  vscode

  compiling

  debugging

  cpp

  Last week, I was working on a C++ application on a remote machine in the cloud, and I didn't want to install all the compiling and debugging tools/libraries/dependencies on the host OS, but I wanted to have all of them in a container. I found that VSCode has the capability to target a container for application building and/or debugging :).

  This article is a documentation for me that I will use every time that I need to compile a C++ application. The steps are divided in three main groups:

  • You need to build a Docker image with the tools/dependencies/libraries etc.. A container will be started...

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• #Raspberry Pi: Controlling Philips HUE Lights (ZigBee & CC2531)

  Home Automation, Raspberry Pi | 6 min | 33265

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  docker

  home automation

  wireless communication

  home assistant

  mqtt

  zigbee

  cc2531

  philips hue

  This article extends the tutorial about Hass.io and the Xiaomi Aqara Sensors that I've published months ago. That tutorial is part of the series of articles about Zigbee and the Rasbperry Pi using the CC2531 USB dongle. Here are the links:

  • Zigbee: Xiaomi Sensors using Raspberry Pi (without Gateway!)
  • Zigbee: Flashing a CC2531 dongle using a Raspberry Pi
  • Raspberry Pi: Xiaomi Sensors & Home Assistant (Hass.io)
  • Zigbee: Reading Xiaomi Sensors with a Raspberry Pi (no Xiaomi gateway ...

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• #Portainer: Managing Docker Engines remotely over TCP socket (TLS)

  Analytics, Cloud Platforms | 4 min | 56006

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  raspberry pi

  docker

  analytics

  portainer

  docker enviroments

  docker management

  google cloud platform

  docker engine

  This tutorial is about managing a Docker Engine remotely using Portainer connected to the protected Docker daemon socket (TCP port 2376). By default, you can manage Docker locally through a non-networked UNIX socket (option -v /var/run/docker.sock:/var/run/docker.sock while running Portainer). But, if you want the Docker Engine to be reachable through the network in a safe manner, you need to enable TLS by specifying the --tlsverify flag and pointing Docker’s --tlscacert flag to a CA certificate. Then, the daemon only accepts connections from clients that are authenticated by a certificate si...

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• #GCP: Running OpenProject almost FREE

  Cloud Platforms | 7 min | 13417

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  docker

  google cloud platform

  management software

  docker-compose

  nginx

  openproject

  microservices application

  The last days, I was looking for an online project management tool with bug tracking system. The best platform that I know is Jira from Atlassian. Jira offers a bug tracking and agile project management, however, it costs between $8.33 and $10 (annual/monthly payment) for the standard version with under 10 accounts. We use Jira in Finealyze and I am very happy with it, but I was looking for a free alternative for myself. Then, I found OpenProject, which describes itself as "the leading open source project management software".

  OpenProject is offered in three different ways: Community, Cloud an...

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• #Zigbee: Reading Xiaomi Sensors with a Raspberry Pi (no Xiaomi gateway needed!)

  Home Automation, Product Reviews, Raspberry Pi | 2 min | 22919

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  docker

  home automation

  raspberry pi 3 B plus

  product review

  home assistant

  xiaomi sensors

  xiaomi gateway

  aqara

  hass.io

  I've been very busy the last weeks. I moved to a new apartment and I was living between moving boxes. Four days ago, I managed to put my desk together and now I have some time (not a lot) to write a new article.

  Last month I've received from GearBest two Aqara sensors:

  • Aqara Cube - internal motion sensors (gyro + accelerometers)
  • Aqara humidity, temperature and air pressure

  These sensors use Zigbee and I connected them to a Raspberry Pi running Raspbian OS and a dockerized version o...

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• #Analytics: Beautiful Python using PEP8

  Analytics | 12 min | 200194

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  docker

  analytics

  programming languages

  python

  jupyter

  coding

  pep-8

  PEP-8 (sometimes PEP 8 or PEP8) is a coding standard and style guide for readability and long-term maintainability of code in Python. It was written in 2001 by Guido van Rossum, Barry Warsaw, and Nick Coghlan and provides guidelines and best practices on how to program Python code. PEPs stand for Python Enhancement Proposals, and they describe and document the way Python language evolves, providing a reference point (and in some way a standardization) for the pythonic way to write code.

  This tutorial presents some of the most important key points of PEP-8. If you want to, you can read the ful...

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• #Docker: Docker hub has been hacked

  Analytics, Hacking | 1 min | 5019

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  docker

  hacking

  docker hub

  hacked

  security

  github

  data leak

  database

  Attention Docker Hub users - Docker Hub has been hacked!

  An email containing the following highlight was sent to the users whose account data may have been exposed.

  During a brief period of unauthorized access to a Docker Hub database, sensitive data from approximately 190,000 accounts may have been exposed (less than 5% of Hub users). Data includes usernames and hashed passwords for a small percentage of these users, as well as Github and Bitbucket tokens for Docker autobuilds (full email).

  If you got this email you should (and if you didn't receive that email, do it too ;)):

  1. Change your...

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• #Edge-TPU: Hands-On with Google's Coral USB accelerator

  Raspberry Pi | 4 min | 9334

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  edge-tpu

  google

  coral

  machine learning

  teachable machine

  raspberry pi

  coral usb accelerator

  tensorflow lite

  docker

  Last week, the Coral team released updates to the Coral platform to "address customer feedback and make it easier to use the products and tool-chain". The Python API has now the ability to run multiple models in parallel, using multiple Edge TPUs.

  Thus, due to the multiple changes, I updated the Docker image lemariva/raspbian-edgetpu which includes the Edge-TPU libraries for Raspberry Pi 3 B+, Jupyter Notebooks and some other interesting libraries (check the Dockerfile).

  ...

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• #Raspberry Pi: Xiaomi Sensors & Home Assistant (Hass.io)

  Home Automation, Raspberry Pi | 5 min | 26779

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  raspberry pi

  docker

  sensors

  home automation

  home assistant

  zigbee

  xiaomi

  hass.io

  embedded

  Last week, I published an article about using Xiaomi sensors without a Xiaomi Gateway. The gateway/hub can be replaced with a Raspberry Pi and a USB-ZigBee dongle. You find the instructions here: #ZigBee: Xiaomi Sensors using Raspberry Pi (without Gateway!).

  As you can read in that article, two repositories are available to connect and process the data from the Xiaomi sensors. Additionally, Zigbee2mqtt can be connected to Hass.io. Well, I didn't want to use HassOS (the OS on which hass.io runs), but I wanted to use Hass.io running on Raspbian, otherwise with Home Assistant running as an appli...

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