Error by starting docker in a Virtual Machine

[dolphikcode]

I have installed IOTstack on Virtual Machine to check how it works (used instruction from github) and when trying to start docker I get:
ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?
If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.

I have restarted and recreated yaml but without any better result... Is IOTstack possible to run only on RPi?

[gcgarner]

The project should run on most Debain based systems. All the images support multi architecture .

I did a quick online search for people having similar issues, there appears to be certain cases that you can't run docker inside a VM. Such as having docker on your local machine and then running a VM with docker. The other option is to check that your virtualisation settings are enabled in your BIOS.

If you have success please let me know about your solution and i will pin the issue

[dolphikcode]

No docker on host and without virtualisation in BIOS it would not be possible to run VM :)

I have found something like this working (running from ~/IOTstack):
export DOCKER_HOST=127.0.0.1:2375
sudo service docker start
sudo docker-compose up -d

[gcgarner]

No docker on host and without virtualisation in BIOS it would not be possible to run VM :)

fair point

Just to confirm did that solve your issue. And if so does it persist over a reboot? I would like to Pin the solution for others if it does.

Also which distro where you using?

[dolphikcode]

I'm using xUbuntu to have VM lightweight, but normal Ubuntu should also work.

After restarting just need to be started by:
sudo service docker start
sudo docker-compose up -d

[gcgarner]

Thanks to @dolphikcode for this solution:

if you get the following error:

ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?
Run:

No docker on host and without virtualisation in BIOS it would not be possible to run VM :)

run:

export DOCKER_HOST=127.0.0.1:2375
sudo service docker start
sudo docker-compose up -d

after rebooting you will still need to run

sudo service docker start
sudo docker-compose up -d

[Paulf007]

I gave it a Quick go as this will make testing a lot easier I get the following error:

pi@IOT-Test:~/IOTstack$ sudo docker-compose up -d Pulling portainer (portainer/portainer:)... latest: Pulling from portainer/portainer ERROR: no matching manifest for unknown in the manifest list entries
Apologies : Using VM VirtualBox with Debian 10 (32 bit)

[gcgarner]

I had a look at portainer's manifest info and it looks like it is only build for amd64 ARM and PPC

@Paulf007 a 32bit OS is the issue, there is no x86_64 portainer image for you to pull. I've added this issue to the README