install fails on Ubuntu 18.04

[stevebus]

Hi,

Both myself and my customer have tried to install iotz on Ubuntu 18.04 "fresh" VMs (him locally, and me with a default Canonical Ubuntu 18.04 VM in Azure.)

• installed docker (18.06.1-ce)
• added myself to the 'docker' group (so I didn't have to do 'sudo' in front of docker commands).
• ran 'sudo npm I iotz -g'

Got the error below... Both myself and my customer have the same experience...

should this work?

stevebus@iotzUbuntu:~$ sudo npm i iotz -g
/usr/local/bin/iotz -> /usr/local/lib/node_modules/iotz/index.js

[email protected] postinstall /usr/local/lib/node_modules/iotz
iotz update

• updating.. (this may take some time)
  Warning: failed to get default registry endpoint from daemon (Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.38/info: dial unix /var/run/docker.sock: connect: permission denied). Using system default: https://index.docker.io/v1/
  Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.38/images/create?fromImage=azureiot%2Fiotz&tag=latest: dial unix /var/run/docker.sock: connect: permission denied

• error: update has failed. See the output above.
  npm ERR! Linux 4.15.0-1025-azure
  npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "i" "iotz" "-g"
  npm ERR! node v8.10.0
  npm ERR! npm v3.5.2
  npm ERR! code ELIFECYCLE

npm ERR! [email protected] postinstall: iotz update
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] postinstall script 'iotz update'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the iotz package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! iotz update
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs iotz
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls iotz
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! /home/stevebus/npm-debug.log

[obastemur]

This is a docker installation issue on ubuntu.
https://stackoverflow.com/questions/48568172/docker-sock-permission-denied

[stevebus]

so the fix in that thread appears to be adding the user to the docker group (with the usermod command) and re-logging in.. We both did that. and we both rebooted the VMs (which would restart the docker daemon), as suggested. didn't help. same problem

[obastemur]

Well, that's just a start :) Because /var/run/docker.sock apparently not owned by the current user, you are not able to execute docker with current user. Hence, you need to own that file.

sudo chown $USER  /var/run/docker.sock

[stevebus]

didn't help.. same error. I can run other docker commands just fine (docker ps, docker pull, docker run -it hello-world, etc). is there something special this install is trying to do that I can try manually to work it out?

[obastemur]

Looks like the issue is due to sudo npm .... Maybe iotz auto update after installation should be manual..

[stevebus]

do you want me to test anything to verify? or will you need to update the npm package? (sorry - somewhat of a. npm novice)

[obastemur]

This is happening due to over sudoing :)

You have probably installed docker via non root account? and installed iotz sudo npm i -g iotz via sudo? So, one is having trouble to execute other ;)

We may possibly remove docker update from npm post install but that's not an option for now.
I highly suggest you to not to use sudo for npm installations.

[stevebus]

ok, I used the convenience script to install docker (https://docs.docker.com/install/linux/docker-ce/ubuntu/#install-using-the-convenience-script) which sudo's the install (I'm a non-root user)... subsequently the npm install of iotz fails regardless of whether I sudo or not.. I'll see if I can get docker installed without sudo and try again.. thanks for the info

[obastemur]

Probably npm install without sudo fails because of disk permission issues. Changing the permissions of /usr/lib/............node_modules folder fixes the issue