Manually Build a CentOS Scan Worker¶
These instructions are for manually building/configuring a CentOS scan worker host (or VM), instead of using Vagrant/Salt to build a VM. This is how you would manually build a production scan worker. It is only lacking the automated startup scripts for celery.
If you are building a production scan worker, you should create a user specifically to run Phagescan and then run everything as that user. We use the user avuser by default.
This guide was developed against a CentOS 6 / RHEL 6 based system.
CentOS 6.3 was installed with the "Minimal" option selected and then updated with
CentOS 6.4 has been tested successfully as well.
NOTE: The vm/host must have 4GB of RAM or more, else your later step to install the Symantec engine will fail!
Prepare your Environment¶
Install commonly used packages (openssh-server is installed by default):
$ su root [root@host]$ yum install sudo openssh-clients acpid unzip htop bash-completion vim-enhanced [root@host]$ exit
Now we can use sudo.
Create user avuser and set a password:
$ sudo adduser -U avuser $ sudo passwd avuser
On the scan master, create scan_worker.zip by using the script:
Transfer that .zip file from the scan master to this host.
Unzip the scan_master.zip, move it into /opt, and set ownership:
$ unzip scan_master.zip $ sudo mv phagescan /opt/ $ sudo chown -R avuser:avuser /opt/phagescan
You now have a /opt/phagescan directory, which we will refer to as [Project_root_dir].
Install necessary OS packages:
If running Ubuntu: $ sudo apt-get install $(< [Project_root_dir]/PACKAGES.centos)
Unless otherwise specified, assume the commands listed here are to be executed from [Project_root_dir].
Install python 2.7:
$ sudo yum groupinstall "Development tools" $ sudo yum install zlib-devel bzip2-devel openssl-devel ncurses-devel $ curl -O http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2 $ tar xjf Python-2.7.3.tar.bz2 $ cd Python-2.7.3 $ ./configure --prefix=/usr/local $ sudo make && sudo make altinstall $ cd .. $ curl -O http://pypi.python.org/packages/source/d/distribute/distribute-0.6.32.tar.gz $ tar xzf distribute-0.6.32.tar.gz $ cd distribute-0.6.32 $ sudo /usr/local/bin/python2.7 setup.py install $ sudo /usr/local/bin/easy_install-2.7 virtualenv
Build & activate a virtual environment:
$ sudo su $ /usr/local/bin/virtualenv-2.7 --setuptools /opt/psvirtualenv [root@host]$ source /opt/psvirtualenv/bin/activate
Your prompt should look like this after:
If you need to deactivate the virtual env (don't do this now):
Install Python requirements into Virtualenv:
(psvirtualenv)[root@host]$ pip install -r [Project_root_dir]/installation/scanworker/PACKAGES.pip
You are done with the root user, so return to your standard user, su to avuser and activate virtual env:
(psvirtualenv)[root@host]$ exit $ sudo su avuser $ source /opt/psvirtualenv/bin/activate
Copy the Celery config file to the [Project_root_dir]:
(psvirtualenv)[avuser@host]$ cp installation/scanworker/workerceleryconfig.py workerceleryconfig.py
Edit workerceleryconfig.py as necessary. In particular, tailor BROKER_CONF to your environment.
Install chosen engines¶
Refer to the following files:
- Currently, only the Symantec engine is supported on CentOS
Start the Celery worker process¶
Use the following command to manually start celeryd:
(psvirtualenv)[avuser@host]$ celeryd -l INFO -E --config=workerceleryconfig --hostname=worker.centos
To start celery on boot, see the init.d/default scripts located in the salt state tree. See installation/salt-masterless/salt/celery/worker for reference versions.