lab

RHCE lab setup scripts

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Vagrant RHCE lab setup

Vagrant files for RHCE exam preparation. Learn more about vagrant at: https://www.vagrantup.com/ Sahara vagrant plugin used for snapshots: https://github.com/jedi4ever/sahara

Installation

Ubuntu 16.04.1 LTS

Provider: virtualbox

  1. Update repos: sudo apt update && sudo apt upgrade
  2. Install vagrant and dependencies: sudo apt -y install vagrant && sudo apt -y install zlib1g-dev
  3. Install virtualbox: sudo apt -y install virtualbox
  4. Patch a file if vagrant version is 1.8.1 (If you manually installed latest vagrant, no need to patch) link: http://stackoverflow.com/questions/36811863/cant-install-vagrant-plugins-in-ubuntu-16-04/36991648
  5. Install required vagrant plugins: vagrant plugin install vagrant-vbguest && vagrant plugin install sahara
  6. Download centos vagrant box: vagrant box add centos/7 If asked for provider select virtualbox.
  7. Clone this and run vagrant up inside lab/virtualbox

###CentOS 7.2/Fedora 24

Provider: libvirt

  1. Update: sudo yum update
  2. Install dependencies and vagrant: sudo yum -y install vagrant redhat-rpm-config vagrant-libvirt vagrant-libvirt-doc libvirt-devel libxslt-devel libxml2-devel virt-manager
  3. Install required vagrant plugins: vagrant plugin install vagrant-libvirt && vagrant plugin install fog && vagrant plugin install sahara
  4. Download centos 7 vagrant box: vagrant box add centos/7 If asked for provider select libvirt.
  5. Clone this and run vagrant up inside lab/libvirt
If using fedora replace yum by dnf
run vagrant up --no-parallel to prevent bringing up all VM's together when using libvirt

Run these commands if you do not have a local repo

Ubuntu 16.04.1 LTS

sed -i '7,13s/^/#/g' virtualbox/scripts/classroom/classroom.sh
sed -i '12,18s/^/#/g' virtualbox/scripts/server/server.sh
sed -i '12,18s/^/#/g' virtualbox/scripts/desktop/desktop.sh

CentOS 7.2/Fedora 24

sed -i '7,13s/^/#/g' libvirt/scripts/classroom/classroom.sh
sed -i '12,18s/^/#/g' libvirt/scripts/server/server.sh
sed -i '12,18s/^/#/g' libvirt/scripts/desktop/desktop.sh

Recommendations

If possible clone the official centos mirrors so that the packages are available locally. Find the nearest mirros from: https://www.centos.org/download/mirrors/ and change in scripts/repoupdate

Ubuntu 16.04.1 LTS

  1. Run a cron job daily using the script, scripts/repoupdate
  2. Install apache webserver: `sudo apt -y install apache2 && sudo rm -f /var/www/html/index.html && sudo systemctl enable apache2 && sudo systemctl restart apache2'
  3. Modify the ip address in the virtualbox/scripts folder to the ip of your base machine:
find scripts/ -type f -name "*.sh" -exec sed -i 's/172.16.0.143/<your-ip>/g' {} \;

CentOS 7.2/Fedora 24

  1. Run a cron job daily using the script, scripts/repoupdate
  2. Install apache webserver: sudo yum -y install httpd && sudo sed -i s/^/#/g /etc/httpd/conf.d/welcome.conf && sudo systemctl enable httpd && sudo systemctl restart httpd
  3. Modify the ip address in the libvirt/scripts folder to the ip of your base machine:
find scripts/ -type f -name "*.sh" -exec sed -i 's/172.16.0.143/<your-ip>/g' {} \;

Modify the scripts in scripts/,virtualbox/scripts,libvirt/scripts folders as per need

Lab system info

domain: example.com hosts: classroom.example.com, server1.example.com, desktop1.example.com services: DNS, NTP, Kerberos, LDAP To access run:

vagrant ssh classroom
vagrant ssh server
vagrant ssh desktop
It is recommended not to modify any settings on classroom server unless required

classroom

hostname: classroom.example.com ipv4: 192.168.33.254 ipv6: 2000::254/64 kdc server: classroom.example.com REALM: EXAMPLE.COM ldap server: classroom.example.com DN: dc=example,dc=com

users:

  • user: vagrant, password: vagrant
  • user: root, password: centos

ldap users:

  • ldapuser1
  • ldapuser2
  • ldapuser3

ldap user home directory: /home/guests ldap authentication password for ldap users: password kerberos authentication password for ldap users: kerberos keytab files:

CA certificate: http://classroom.example.com/pki/example_ca.crt

For httpd: server1 key file: http://classroom.example.com/pki/tls/private/server1.key server1 crt file: http://classroom.example.com/pki/tls/certs/server1.crt

Sample WSGI script: http://classroom.example.com/scripts/epoch.py

server1

hostname: server.example.com ipv4: 192.168.33.11 ipv6: set one in 2000::/64 range

users:

  • user: vagrant, password: vagrant
  • user: root, password: centos

script for checking teaming: /usr/local/scripts/teambridge.sh Make the script executable: chmod u+x /usr/local/scripts/teambridge.sh and run ./usr/local/scripts/teambridge.sh

teaming interfaces
  • eno1
  • eno2
    bridge ip: 10.10.0.254
    set any ip in the 10.10.0.0/24 network for the teamed interface

secondary disk: /dev/sdb if using virtualbox, otherwise /dev/vdb

desktop1

hostname: desktop1.example.com ipv4: 192.168.33.10 ipv6: set one in 2000::/64 range users:

  • user: vagrant, password: vagrant
  • user: root, password: centos

secondary disk: /dev/sdb if using virtualbox, otherwise /dev/vdb