Docker container web interface – Portainer and Riot-OS Development

This post is a follow up of starting up with RIOT-OS. To be able to develop with RIOT-OS an easy (and easier) way to do so is just to install docker and web UI docker interface Portainer to control docker.

So we will install Docker, Portainer, and finally the RIOT-OS building environment.

Installing Docker and Portainer, is an initial stepping stone for using the dockerized development environment for RIOT-OS, since I don’t want to install all the development environments in my machine.

Installing Docker:
On Arch-Linux is as simple as installing the Docker package using pacman, enabling the services and rebooting.
Basically we need to run, as root the following commands:

pacman -S docker
systemctl enable docker.service
reboot

After rebooting the following command should return some information

docker info

A sample output is:

Containers: 2
 Running: 0
 Paused: 0
 Stopped: 2
Images: 9
Server Version: 18.09.0-ce
Storage Driver: overlay2
 Backing Filesystem: extfs
 Supports d_type: true
 Native Overlay Diff: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
...
...
...

Installing Portainer
Installing the Docker Portainer Web UI is as simple as:

docker pull portainer/portainer

To run Portainer a set of complete instructions on this page, but basically on the simplest way is:

$ docker volume create portainer_data
$ docker run -d -p 9000:9000 --name portainer --restart always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer

We can now check if the docker image is up:

$ docker ps
CONTAINER ID        IMAGE                 COMMAND             CREATED             STATUS              PORTS                    NAMES
7a38ae7fc922        portainer/portainer   "/portainer"        4 seconds ago       Up 3 seconds        0.0.0.0:9000->9000/tcp   portainer

Since I have already ran the Portainer container, the initial setting up steps when accessing the URL HTTP://localhost:9000 do not appear, but we need to choose:

  1. A set of credentials to use as de administrator for portainer
  2. The local machine registry to connect to the local docker containers.

1- At initial access we define an user and password:

Portainer Credentials

2- Then we connect to our local docker instance:
Portainer Local Docker

Press Connect and then we can now access our Docker instance from Portainer:
Portainer Main Screen

Pressing the Local Docker Connection we can now manage our docker resources.

Installing the build environment for RIOT-OS
We can do it by two ways:

From the command line:

docker pull riot/riotbuild

or use Portainer:

This container is very big, so we need to wait some time for the container image download. The command line shows in greater detail the download process.

After the image is downloaded, we can follow these instructions for building our apps using the docker container as the build environment.

After the image is installed:

To use is is as simple as going the the examples directory and do:

make BUILD_IN_DOCKER=1

From this we are now able to build based RIOT-OS applications for several targets, including the ESP8266/ESP32.

As we can see we even don’t need to have a running container, just the image.

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