How to install this plugin on Centos7

[csecsi]

I am confused about installing this plugin on Centos7 (like: fog-proxmox requires Ruby version >= 2.3).
Could someone add a Centos install howto to the manual?

[tristanrobert]

Ruby 2.3 installation:

sudo yum install centos-release-scl
sudo yum install rh-ruby23
sudo scl enable rh-ruby23 bash

Or use rvm, rbenv, etc.

Foreman and its plugin installation form packages: https://www.theforeman.org/manuals/1.21/index.html#3.3InstallFromPackages

[csecsi]

THX for the help.

So this is what I did:

installing the necessary packages:
sudo yum install centos-release-scl rh-ruby23 rh-ruby23-ruby-devel gcc zlib-devel -y

As /usr/share/foreman is owned by root I need as a quick and dirty solution: setfacl -R -m u:foreman:rxw /usr/share/foreman

sudo -u foreman scl enable rh-ruby23 bash
gem install foreman_fog_proxmox

and after restart:
Gem loading error: Unable to activate fog-1.42.1, because fog-core-2.1.2 conflicts with fog-core (~> 1.45) (RuntimeError)

What I am doing wrong?

[Yamakasi]

I have issues like this at the moment:

Building native extensions.  This could take a while...
ERROR:  Error installing foreman_fog_proxmox:
        ERROR: Failed to build gem native extension.

    current directory: /opt/rh/rh-ruby23/root/usr/local/share/gems/gems/nokogiri-1.10.3/ext/nokogiri
/opt/rh/rh-ruby23/root/usr/bin/ruby -r ./siteconf20190511-14749-10daj7j.rb extconf.rb
mkmf.rb can't find header files for ruby at /opt/rh/rh-ruby23/root/usr/share/include/ruby.h

extconf failed, exit code 1

Gem files will remain installed in /opt/rh/rh-ruby23/root/usr/local/share/gems/gems/nokogiri-1.10.3 for inspection.
Results logged to /opt/rh/rh-ruby23/root/usr/local/lib64/gems/ruby/nokogiri-1.10.3/gem_make.out
`

[tristanrobert]

@Yamakasi Please post a distinct issue and describe precisely what you did in order to reproduce it.

[tristanrobert]

@csecsi gem installation is not recommended by foreman team. Please read carefully the doc §2.3: https://theforeman.org/plugins/

[Yamakasi]

@tristanrobert exactly your commands posted above and after that a gem install...

I don't see the 0.8.0 version available in repo's that's why I tried Gem.

[tristanrobert]

@Yamakasi 0.8.0 packages PR to foreman-packaging have just been posted.

[Yamakasi]

@tristanrobert OK looking forward to it :)

[brindapabari]

THX for the help.

So this is what I did:

installing the necessary packages:
sudo yum install centos-release-scl rh-ruby23 rh-ruby23-ruby-devel gcc zlib-devel -y

As /usr/share/foreman is owned by root I need as a quick and dirty solution: setfacl -R -m u:foreman:rxw /usr/share/foreman

sudo -u foreman scl enable rh-ruby23 bash
gem install foreman_fog_proxmox

and after restart:
Gem loading error: Unable to activate fog-1.42.1, because fog-core-2.1.2 conflicts with fog-core (~> 1.45) (RuntimeError)

What I am doing wrong?

@csecsi -- Were you able to install the plugin on CentOS7. I am doing the same steps and facing issues. Could you please list steps you performed for this plugin installation? Any pointers would be really helpfull

[csecsi]

Negative. :(
I gave it up after a while.

[hlawatschek]

Which foreman version do you use? We're packaging our own versions of foreman-fog-proxmox and fog-proxmox for orcharhino. I could send you the rpm packages for CentOS7 that should work with foreman-1.21 or 1.22

[brindapabari]

@csecsi

Following are the steps I followed for installing foreman_fog_proxmox (0.8) plugin in CentOS (7) for the latest foreman version (1.22) and finally had a working version
• $sudo install -y foreman foreman-compute foreman-sqlite3 foreman-asset
• In /usr/share/foreman/bundler.d directory, create a Gemfile.local.rb file and add following content in
it: gem 'foreman_fog_proxmox'

• System ruby version might be different from tfm-ruby version. Foreman uses tfm-ruby, therefore run the shell with following command in order to confirm that tfm version is being used. 
Use only foreman user (not root!) sudo -u foreman … If required give read write access to foreman user to the /usr/share/foreman directory

sudo -u foreman scl enable tfm bash
	○ bash-4.2$ whoami
		foreman
	○ bash-4.2$ set
		Check all the environment variables displayed
	○ bash-4.2$ gem install foreman_fog_proxmox
	○ bash-4.2$ cd  /usr/share/foreman/
	○ Install the gem plugin:
	bash-4.2$ bundle install 
	○ Not sure if Precompilation of plugin assets is required or not. It gave me errors but the plugin was already installed. Therefore I processed with testing the plugin functionalities of computing the proxmox resource
	
• Opening up Foreman website -> Compute Resources throws permission error 

• [root]$ setenforce 0

• After disabling the selinux Foreman website shows the installed plugin in  Administer ->About ->Plugins. Able to open the Compute Resources page.

• Upon saving the Create Resource page / clicking on Test Connection of Proxmox server, it gives the authentication error similar to this open issue: https://github.com/theforeman/foreman_fog_proxmox/issues/86

Resolution provided by pdzionek in issue #86 works for me:
○ Commenting out line 82 from the file:
• $vi /usr/share/foreman/.gem/ruby/gems/fog-proxmox-0.8.0/lib/fog/proxmox.rb

Hope this helps!

[tristanrobert]

Needs a new PR in theforeman/foreman-packaging to include 0.8.1.

[tristanrobert]

It is fixed in foreman-packaging PR#4308 and PR#4309. If you want to speed up you can follow these PR and vote for it.