docker

custom docker stuff

To speed up the install process there is an install script in tools

Install

./tools/install.sh
./tools/loginDockerHub.sh

If you want to run a docker of a differnt architecture please install

sudo apt install -y qemu qemu-user-static binfmt-support

and spinn up the multiarch container

docker run --rm --privileged multiarch/qemu-user-static --reset -p yes --credential yes

How to Work

run init.sh to ensure the proper .env file is generated

./init.sh

in the folder snippets one can find different code snippets to copy into
docker-compose or
Dockerfile
to quickly setup a new project

Manuell install

sudo groupadd docker
sudo gpasswd -a $USER docker
sudo chown $USER:docker ~/.docker

sudo apt-get update
sudo apt-get remove docker docker-engine docker.io
sudo apt-get purge docker-ce docker-ce-cli containerd.io
sudo apt-get install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

x86_x64

sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

arm64

sudo add-apt-repository \
   "deb [arch=arm64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

Instaltion

sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

Install qemu support

sudo apt install -y qemu qemu-user-static binfmt-support

Log into docker online to acess the hub

(there is a script in tools for this as well) cat pw.txt | sudo docker login --username sausy --password-stdin install docker-compose

sudo apt install -y docker-compose

Build docker

if experimental enabled

You could also specifiy the target architecture FROM --platform=linux/arm64 ubuntu:18.04

Run docker from differnt architecture

First you have to run

docker run --rm --privileged multiarch/qemu-user-static --reset -p yes --credential yes

example: First build base arm img

cd arm64
docker build -t rpiarm64ros2:latest .

then build e.g. the one for meldoic (ros1)

cd melodic
docker build -t bionic/arm64:melodic .

buildx (didn't work for me jet)

to use buildx nano ~/.docker/config.json

{ "auths": { "https://index.docker.io/v1/": { "auth": "c2F1c3k6U2F1c2krMzIxXw==" } }, "HttpHeaders": { "User-Agent": "Docker-Client/18.09.7 (linux)" }, "experimental": true

}

sudo service docker restart

to run on different architecture

if docker buildx ls doesn't work just go into sudo service docker stop sudo dockerd --experimental

which should display alle the supportet architectures to use a specific architecture

docker run --rm ubuntu:18.04@sha256:214d66c966334f0223b036c1e56d9794bc18b71dd20d90abb28d838a5e7fe7f1 uname -m

if you don't want to log out and log in again use the hacky way su - $USER

#sudo apt-get install apt-transport-https ca-certificates curl software-properties-common

Usefull Comands

sudo docker commit d32b2a73140 x64/ros2/dashing:latest

#Docker Compose To build multiple targets and also predefine names ... docker-compose.yml could be used therefore a docker-compose.yml file has to be created

version: ''

Important note

if you use docker compose eg do define the external interface to be accessible to the docker you must run

cd <PATH TO YOU docker-compose.yml>
docker-compose up

which builds everything and runs it

eg.:

version: '2'
services:
  graphicnodered:
    image: nodered/node-red:rpi
    build: .
    ports:
      - 1880:1880
      - 9099:9099

if you don't want to swich into the folder all the time you have to run it like

docker run -it -p 1880:1880 -p 9099:9099 --name mynodered -v /home/$USER/.node-red:/data nodered/node-red:1.0.6-12-minimal-arm64v8

Error free(): invalid pointer with

Uninstalling golang-docker-credential-helpers resolved this issue for me.