[BUG]ModuleNotFoundError: No module named 'fog05'

[wuwei3]

Describe the bug I download the source code from master, while I execute the command

sudo -u fos fos_linux /etc/fos/plugins/linux/linux_plugin.json

I got the error message "ModuleNotFoundError: No module named 'fog05'"

I go to the "/usr/bin", open the fos_linux file, find:

how can I get these plugins?

To Reproduce

1. install all the plugins
2. execute the command
3. exception throws

Expected behavior it should be start normally.

Desktop (please complete the following information):

• OS: ubuntu14
• Version: master
• Involved plugin: All

Additional context Could you guys provide more detail on how to install the fog05? Like what plugins and dependencies need to install? what neccessary SDk need to install, what version of linux OS can insatll, etc.

[gabrik]

Hi @wuwei3, seems that you installed only the plugins but not the actual fog05 library. Some installation instruction are provided in INSTALL.md

But as you have already installed the plugins you can just run from the fog05 directory

$ ./fos_install.sh

It will install the agent and the python libraries.

Regarding the requirements:

• Ubuntu 16.04 or Greater
• Pyhton3.4 or Greater
• libev4
• libssl1.0 or Greater

Then you need to start YAKS and the agent prior to start the plugins

For YAKS

$ yaks -vv

For the agent:

$ sudo -u fos fagent -c /etc/fos/agent.json -v

this only if you are starting it by hands, or you can just use the systemd integration.

sudo systemctl start yaks
sudo systemctl start fos_agent
sudo systemctl start fos_linux
sudo systemctl start fos_linuxbridge
sudo systemctl start fos_lxd

[wuwei3]

Hi gabrik, $ ./fos_install.sh I have executed, but i don't know whether the fog05 libraries are be installed, the log is below installlog.txt

As you said, the OS requirement is need ubuntu16 at least, for now, I am using the ubuntu14, so that means I will not successful install the fog05?

And what is the best version of python, I am using the python 3.7, it's ok for fog05?

[gabrik]

Hi @wuwei3 From the log everithing seems installed.

You can check it running yaksd -vv or fagent

Then you can start all the fog05 services in the node using systemctl

sudo systemctl start yaks
sudo systemctl start fos_agent
sudo systemctl start fos_linux
sudo systemctl start fos_linuxbridge
sudo systemctl start fos_lxd

[wuwei3]

But the problem is what I said above,

I executed the "yaksd -vv" and "sudo -u fos fagent -c /etc/fos/agent.json -v" are ok,

but while I executing the "sudo -u fos fos_linux /etc/fos/plugins/linux/linux_plugin.json"

I got the exception: ModuleNotFoundError: No module named 'fog05'

And the "systemctl" not support in ubuntu14, I am using the ubuntu14, so I can't using the first way to start (Start Eclipse fog05 FIM using systemd) , so I have to use the second way(Start Eclipse fog05 FIM by hand), then, I encountered the exception.

[gabrik]

Ok, this is strange, because from the log the module is installed.

Can you check if it is actually installed? pip should create this directory when the library is installed: /usr/local/lib/python3.7/dist-packages/fog05-0.2.0a1-py3.7.egg

[gabrik]

Got the problem. Your pip is installing in python3.4

Copying fog05-0.2.0.a1-py3.4.egg to /usr/local/lib/python3.4/dist-packages
fog05 0.2.0.a1 is already the active version in easy-install.pth

Installed /usr/local/lib/python3.4/dist-packages/fog05-0.2.0.a1-py3.4.egg

Can you post the output of ls -ls /usr/bin/python3

[wuwei3]

yes, you are right, I find it in pyhon3.4, this the output of 'ls -ls /usr/bin/python3'

[gabrik]

Ok, can you try to install the module by hands.

$ cd fog05/src/api/python/api
$ sudo python3.7 setup.py install

And then verify the installation using

$ python3.7
>>> from fog05 import FIMAPI

[wuwei3]

it's ok for now. I executed the "from fog05 import FIMAPI", no error

[gabrik]

I guess is something strange that comes with Ubuntu 14.04. Let me know if now the plugins works and if there is any other error

[wuwei3]

Another issue:

while I executing the "sudo -u fos /etc/fos/plugins/linuxbridge/linuxbridge_plugin /etc/fos/plugins/linuxbridge/linuxbridge_plugin.json", got the error:

[gabrik]

Can you paste the content of /etc/fos/plugins/linuxbridge/linuxbridge_plugin.json

[wuwei3]

{ "configuration": { "vlan_range": [ 50, 100 ], "vlan_interface": "ens2", "use_vlan": false, "dataplane_interface": "eth0" "nodeid": "854010fa36cf92f13163ce6d5851aee4", "ylocator": "tcp/127.0.0.1:7887" }, "description": "linux Bridge network plugin", "requirements": [ "jinja2" ], "type": "network", "uuid": "d42b4163-af35-423a-acb4-a228290cf0be", "version": 1, "name": "linuxbridge" }

[wuwei3]

for the command "sudo -u fos fos_linux /etc/fos/plugins/linux/linux_plugin.json", I still got error

[gabrik]

In linuxbridge_plugin.json there is a missing coma between "dataplane_interface": "eth0" and "nodeid": "854010fa36cf92f13163ce6d5851aee4" and also I see that the nodeid is not correct as it should follow UUID4 definition.

So update all your plugin configuration file with the correct nodeid coming from this script fog05/fos-plugins/LXD/to_uuid.sh Those configuration file are:

• /etc/fos/plugins/linux/linux_plugin.json
• /etc/fos/plugins/linuxbridge/linuxbridge_plugin.json
• /etc/fos/plugins/LXD/LXD_plugin.json

[wuwei3]

but the nodeid is I got from "/var/lib/dbus/machine-id", as the install.md said, there is no "/etc/machine-id" in ubuntu14, I search on google, people said the file is under "/var/lib/dbus/", not correct?

[gabrik]

Well it this case you can use custom node id, by passing to the agent the parameter --id and use the same ID in the configuration files, you can get a valid UUID from https://www.uuidgenerator.net/ or by using uuidgen

So the command to start the agent becomes

sudo -u fos /etc/fos/agent -c /etc/fos/agent.json --id <some uuid> -v 

This reminds me why Ubuntu14 is not very supported

[wuwei3]

while I executed the "Linux Plugin"-> "sudo -u fos fos_linux /etc/fos/plugins/linux/linux_plugin.json". I got some warning message:

it is normal? not impact anything?

[gabrik]

Mmm... I see, I guess there is a bug and so it search for the scripts in the same directory of the plugin file.

Just try to start it passing the full path of Linux plugin:

sudo -u fos /etc/fos/plugin/linux/linux_plugin /etc/fos/plugins/linux/linux_plugin.json

This should solve the problem

[wuwei3]

sudo -u fos /etc/fos/plugin/linux/linux_plugin /etc/fos/plugins/linux/linux_plugin.json

it said ,not this command

[gabrik]

Sorry my bad I forgot an 's' in the path Correct one is:

sudo -u fos /etc/fos/plugins/linux/linux_plugin /etc/fos/plugins/linux/linux_plugin.json

[wuwei3]

Great, it successful start, Thanks very much!!!!

But I have another question:

what API I can use ? is there any APi document on git?

There is example in your install.md,

api = FIMAPI(locator='127.0.0.1')

is there another API except the list() and close()?

[gabrik]

Sure, you can check some example here

There is an actual documentation, but I guess it is a little bit outdated

[wuwei3]

Thanks, another question:

if I want to install fog05 on ubuntu 16, should I to install python? if yes, what is the best version of python for compatible fog 05?

[gabrik]

Yes, you should install python. In the VMs used for testing we use the default version for Ubuntu 16.04, which I guess is python3.5 or 3.6

Fell free to close the issue when you do not have any other question

[wuwei3]

Ok, you could close, no question for now.