dwilkie

Build docker image

$ cd /path/to/Dockerfile
$ sudo docker build .

View running processes

mmcloughlin

package main

import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"

	"golang.org/x/net/proxy"
)

briangershon

		buf, bodyErr := ioutil.ReadAll(r.Body)
		if bodyErr != nil {
			log.Print("bodyErr ", bodyErr.Error())
			http.Error(w, bodyErr.Error(), http.StatusInternalServerError)
			return
		}
		
		rdr1 := ioutil.NopCloser(bytes.NewBuffer(buf))
		rdr2 := ioutil.NopCloser(bytes.NewBuffer(buf))
		log.Printf("BODY: %q", rdr1)

frankmanzhu

Run ssh-keygen

echo -e "#cloud-config\nssh_authorized_keys:\n - $(cat .ssh/id_rsa.pub)" > $HOME/cloud-config.yml

After boot rancherOS

sudo scp frank@xxx:/home/frank/cloud-config.yml .

sudo ros install -d /dev/sda -c cloud-config.yml

tokland

function promiseMap(inputValues, mapper) {
  const reducer = (acc$, inputValue) =>
    acc$.then(acc => mapper(inputValue).then(result => acc.push(result) && acc));
  return inputValues.reduce(reducer, Promise.resolve([]));
}

/* Example */

const axios = require('axios');

alexellis

This guide has moved to a GitHub repository to enable collaboration and community input via pull-requests.

https://github.com/alexellis/k8s-on-raspbian

Alex

przbadu

STEP 2: setup docker to run react app (dev and production) configuration: https://gist.github.com/przbadu/929fc2b0d5d4cd78a5efe76d37f891b6

Setup Docker for React development

Because we are using Docker, we are not going to install node, npm, create-react-app in our development machine, not even for generating create-react-app scaffold.

For this purpose I am using 2-step docker configuration:

• In first step, we will create a simple docker container, that does only one thing, install create-react-app

moritzmhmk

Using Raspberry Pi Camera with ffmpeg

Capturing video from the rpi camera with ffmpeg can vary from less than 5% to 100% of the CPU (rpi zero) depending on ffmpeg using the hardware acceleration or not.

On many github issues one finds the suggestion of using h264_omx codec to use the gpu - but it does not ship with the default ffmpeg on Raspbian.

Instead I found that one can use the v4l2 driver provided by raspbian to get hardware accelerated h264 output. Also setting the video size will save one from using a (cpu) scale filter.

ffmpeg

capture h264 video from rpi camera

adilsoncarvalho

Deploying functions from Bitbucket Pipelines

It's quite easy and the same process applies to all Firebase features with minor changes.

Acquire a deployment token

In order to deploy you'll need a deployment token (I named it FIREBASE_TOKEN) and it can be acquired by using the following command

firebase login:ci

nddipiazza

CN_NAME=localhost

# Certificate Authority
echo Generate CA key:
openssl genrsa -passout pass:1111 -des3 -out ca.key 4096
echo Generate CA certificate:
openssl req -passin pass:1111 -new -x509 -days 365 -key ca.key -out ca.crt -subj "/CN=${CN_NAME}"

# Server side key
echo Generate server key: