To get open nebula up and running on my machine I had to gather information from a few different places since none of the instructions of each single source worked flawlessly.
I’ve got through the set up part but when I tried to run SunStone it would not authenticate the user, thus failing to launch the tool.
I started looking for solutions online and I came up with these two tutorials:
I’ve tried them but they didn’t work by themselves, something was always missing.
In the end, after all tries and fails my system was a mess, I had to modify so many places I didn’t even remember what was happening.
I then decided to take a step back and analyze the problem.
I re-read the official guide and other online the articles mentioning the installation of opennebula and sunstone
I then re-image my computer and started fresh again.
Below is the list of the steps I took to install OpenNebula and SunStone on a CentoOS box
1 – Add EPL to the yum repo list
mv 0608B895.txt /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
rpm -ivh epel-release-6-5.noarch.rpm
rpm -qa gpg*
yum clean all
A more complete explanation about EPL
2 – GroupInstall Virtualization and Development Tools
sudo yum groupinstall “Development Tools”
sudo yum groupinstall Virtualization
3 – Download latest packages for OpenNebula
I selected the OpenNebula 3.8.1 CenOS 6.3 tarball
The contents of the downloaded package are:
I first installed the OpenNebula rpm, followed by the sunstone and java packages.
4 – Install OpenNebula
To install all the required dependencies for OpenNebula install the package with yum:
sudo yum localinstall opennebula-3.8.1-1.x86_64.rpm
5 – Install gems
Before installing gems one dependency is required:
sudo yum install redhat-lsb
6 – This part I had some problems, so there might exist a simpler way to circumvent or even prevent this problem
My guess is that since I didn’t have mysql up and running the creation of the credentials for the oneadmin user were not effective, but I’m not sure.
Another issue I was facing was that I wasn’t able to log in with the oneadmin user
If I tried:
it would ask for the password but I didn’t know the password since the user was created during the installation of OpenNebula.
That was really throwing me off since on the official guide they tells you to log in with the oneadmin before setting the credentials for it
Since it wasn’t working I tried the contrary:
echo “oneadmin:yourpasshere” > /var/lib/one/.one/one_auth
I’ve tried to log in again with the oneadmin user.
It didn’t work.
I then log as root and then tried again to log in as oneadmin.
This time worked.
*If anybody knows why I can log in with the oneadmin user when I’m root but not when I have my default user account please leave a comment below
Anyway, I was able to log in with the oneadmin user so I kept moving on
7 – Configure ssh
This part is pretty straight forward and the official guide covers it very well:
Logged as oneadmin:
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod 700 ~/.ssh/
chmod 600 ~/.ssh/id_rsa.pub
chmod 600 ~/.ssh/id_rsa
chmod 600 ~/.ssh/authorized_keys
chmod 600 ~/.one/one_auth
8 – Starting OpenNebula
Logged as oneadmin
check if the user is properly configured by listing the vms
Here is where I got the error that I mentioned earlier:
[“HostPoolInfo] User couldn’t be authenticated, aborting call”]
That was very frustrating, since no where in the official documentation had any mention of this.
Looking online I found one mail thread where somebody suggested a solution:
Before I get to the solution here is where I started the mysql service, as I said before the fact that mysql was off might have caused the error in the first place,
sudo chkconfig –levels 235 mysqld on
sudo service mysqld start
The solution as suggested by one of OpenNebula engineers was to remove the one.db file, located at the home of the oneadmin user.
The default location would be */var/lib/one
The next time OpenNebula is started it will use the credentials copied earlier to the one_auth file and then create the one.db file with the correct credentials.
Indeed that solution worked.
Logged as oneadmin
You should see something like:
ID USER GROUP NAME STAT UCPU UMEM HOST TIME
9 – Installing Sunstone
Back to the folder where you extracted the OpenNebula package, install the sunstone and java packages:
Before installing sunstone, this dependencies are needed:
sudo yum install ruby rubygems rubygem-nokogiri rubygem-json rubygem-rack rubygem-sequel rubygem-sinatra rubygem-sqlite3-ruby rubygem-thin rubygem-uuidtools json sequel sqlite3
And also noVNC, OpenNebula has a script for that:
Now installing the sunstone and java packages:
sudo rpm -Uhv opennebula-sunstone-3.8.1-1.x86_64.rpm
sudo rpm -Uhv opennebula-java-3.8.1-1.x86_64.rpm
10 – Start Sunstone
Logged as oneadmin:
The sunstone server will be listening on port 9689
All the settings for sunstone are located at /etc/one/sunstone-server.conf
By now you should be able to access sunstone in your browser by going to 127.0.0.1:9689