General Information

Registering a client system with a Spacewalk server.

Checklist

• Enterprise Linux 6/7
• Spacewalk Server Installed

spacewalk_register.sh

############################################################################################
#!/bin/bash
# Title: spacewalk_register.sh
# Description: Register a system with spacewalk
############################################################################################
 
#=====================================
# CUSTOMIZE HERE
#=====================================
# Spacewalk server fqdn hostname
sw_server="spacewalk-server.local"
 
# Spacewalk server's ssl ca rpm version and installed location
#(this is the package available at: https://${sw_server}/pub/${sw_server_ca})
sw_server_ca="rhn-org-trusted-ssl-cert-1.0-2.noarch.rpm"
sw_server_ca_installed="/usr/share/rhn/RHN-ORG-TRUSTED-SSL-CERT"
 
#spacewalk server channel activation keys
sw_activation_key_centos6="1-centos6-x86-64-key"
sw_activation_key_centos7="1-centos7-x86-64-key"
sw_activation_key_oracle6="1-oracle6-x86-64-key"
sw_activation_key_oracle7="1-oracle7-x86-64-key"
 
#spacewalk client repos
sw_client_repo_el6="http://yum.spacewalkproject.org/2.4-client/RHEL/6/x86_64/spacewalk-client-repo-2.4-3.el6.noarch.rpm"
sw_client_repo_el7="http://yum.spacewalkproject.org/2.4-client/RHEL/7/x86_64/spacewalk-client-repo-2.4-3.el7.noarch.rpm"
 
#=====================================
# END OF CUSTOMIZATION
#=====================================
 
#=====================================
# Functions; Main starts after
#=====================================
function show_usage
{
  echo -e "\n####========== Spacewalk Registration ============####"
  echo -e "\nDescripton: Register a system with the Spacewalk server; ${sw_server}"
  echo -e "\n--Usage"
  echo -e "$0      => No arguments, normal registration."
  echo -e "$0 -f   => Force registration if this system believes it is already registered."
  echo -e "$0 -h   => Display usage."
}
 
 
function check_os_type
{
if [[ $(uname -i) != "x86_64" ]]; then
  echo -e "->Error: Only x86_64 architecture channels supported at this time."
  exit 1
else
  ## Gather Distro and Major Version
  if [ -f /etc/system-release-cpe ];then
    distro=$(awk -F: '{printf "%s", $3}' /etc/system-release-cpe)
    major_version=$(awk -F: '{printf "%d", $5}' /etc/system-release-cpe)
  elif [ -f /etc/redhat-release ];then
    distro=$(awk '{printf "%s", $1}' /etc/redhat-release)
    major_version=$(awk -F. '{print $1}' /etc/redhat-release | awk '{printf "%d", $3}')
  fi
 
  if [[ ${distro,,} == "centos" ]]; then
    case ${major_version} in
      7)
        # CentOS 7 register
        sw_client_repo=${sw_client_repo_el7}
        sw_activation_key=${sw_activation_key_centos7}
      ;;
      6)
        # CentOS 6 register
        sw_client_repo=${sw_client_repo_el6}
        sw_activation_key=${sw_activation_key_centos6}
      ;;
      *)
        echo -e "->Error: ${distro} ${major_version} not supported at this time."
        exit 1
      ;;
    esac
  elif [[ ${distro,,} == "oracle" ]]; then
    case ${major_version} in
      7)
        # Oracle 7 register
        sw_client_repo=${sw_client_repo_el7}
        sw_activation_key=${sw_activation_key_oracle7}
      ;;
      6)
        # Oracle 6 register
        sw_client_repo=${sw_client_repo_el6}
        sw_activation_key=${sw_activation_key_oracle6}
      ;;
      *)
        echo -e "->Error: ${distro} ${major_version} not supported at this time."
        exit 1
      ;;
    esac
  else
    echo -e "->Error: ${distro} not supported. Only CentOS and Oracle channels available at this time."
    exit 1
  fi
 
fi
}
 
 
#=====================================
# Get Script Arguments
#=====================================
# Reset POSIX variable in case it has been used previously in this shell
OPTIND=1
 
# set default variable settings
force_register="no"
 
while getopts "hf" opt; do
  case "${opt}" in
    h) # -h (help) argument
      show_usage
      exit 0
    ;;
    f) # -f (force) argument
      force_register="yes"
    ;;
    *) # invalid argument
      show_usage
      exit 0
    ;;
  esac
done
 
 
####==================================
#### Main Starts Here
####==================================
 
echo -e "======================================================"
echo -e "####========== Spacewalk Registration ============####"
echo -e "======================================================"
 
## Check OS type. set client repo, and spacewalk activation key variable
echo -e "\n>> Checking OS type, setting repo variable, and Spacewalk activation key..."
check_os_type
 
#=====================================
# Confirm running the script
#=====================================
echo
echo -e "Warning: This script will install packages, register a system with Spacewalk, and disable system default repos."
echo -e "Detected Distro: ${distro} ${major_version}"
echo -e "Will Register to Spacewalk Server: https://${sw_server}/XMLRPC"
echo -e "Activation Key to Use: ${sw_activation_key}"
echo -e "=>Continue?[y/n]:\c"
read run_script
 
if [[ ${run_script} != "y" ]]; then
  echo -e "\n>>Will not run the Spacewalk Registration script. Exiting..."
  exit 1
fi
 
## Add Repos ##
echo -e "\n>> Adding Spacewalk Client Repo..."
yum -y install ${sw_client_repo}
 
echo -e "\n>> Caching DNS lookup for mirrors.fedoraproject.org..."
dig mirrors.fedoraproject.org &> /dev/null
 
echo -e "\n>> Adding EPEL Repo..."
yum -y install epel-release
 
echo -e "\n>> Enabling EPEL Repo..."
sed -i 's/enabled=0/enabled=1/' /etc/yum.repos.d/epel.repo
 
## Install Spacewalk's CA Cert ##
echo -e "\n>> Installing Spacewalk Server's trusted CA cert..."
rpm -ivh https://${sw_server}/pub/${sw_server_ca}
 
## Install Client Packages ##
echo -e "\n>> Installing rhn client packages..."
yum -y install rhn-client-tools rhn-check rhn-setup rhnsd m2crypto yum-rhn-plugin
 
echo -e "\n>> Installing rhn configuration client packages..."
yum -y install rhncfg rhncfg-actions rhncfg-client rhncfg-management
 
## Register ##
if [[ ${force_register} == "yes" ]]; then
  echo -e "\n>> Registering with ${sw_server} using the rhnreg_ks --force option..."
  rhnreg_ks --force --serverUrl=https://${sw_server}/XMLRPC --sslCACert=${sw_server_ca_installed} --activationkey=${sw_activation_key}
  registration_return_code=$?
 
else
  echo -e "\n>> Registering with ${sw_server}..."
  rhnreg_ks --serverUrl=https://${sw_server}/XMLRPC --sslCACert=${sw_server_ca_installed} --activationkey=${sw_activation_key}
  registration_return_code=$?
fi
 
# Check if registration was successful #
if [[ ${registration_return_code} -eq 0 ]]; then
  echo -e "-> Registration successful."
  sleep 1
 
elif [[ ${registration_return_code} -eq 255 ]]; then
  echo -e "-> Registration encountered an error! (Return Code: ${registration_return_code})"
  echo -e "\n-> To manually force registration(if system is 'already registered'), re-run this script with the "-f" argument.($0 -f)"
  echo -e "\n--> WARNING: This may create duplicate systems in Spacewalk."
  exit 1
 
else
  echo -e "-> Registration encountered an error! (Return Code: ${registration_return_code})"
  echo -e "-> Will NOT install osad and disable default repos...exiting."
  exit 1
fi
 
# Setup spacewalk-checkin cron job to run rhn_check every 30 mins
echo -e "\n>> Setting up spacewalk-checkin job..."
echo "# Spacewalk Check-in job; executes rhn_check" > /etc/cron.d/spacewalk-checkin
echo 'MAILTO=""' >> /etc/cron.d/spacewalk-checkin
echo -e "\n# run rhn_check every 30 mins" >> /etc/cron.d/spacewalk-checkin
echo "*/30 * * * * root /usr/sbin/rhn_check" >> /etc/cron.d/spacewalk-checkin
 
echo -e "\n>> Disabling rhnsd..."
if [[ ${major_version} == "7" ]]; then
  systemctl disable rhnsd
  systemctl stop rhnsd
else
  chkconfig rhnsd off
  service rhnsd stop
fi
 
# Allow Spacewalk server to deploy config files
echo -e "\n>> Allowing Spacewalk server deploy control..."
rhn-actions-control --enable-all
 
## Disable Old Repos ##
 
if [[ ${distro,,} == "centos" ]]; then
# Disable CentOS default system repos
  echo -e "\n>> Disabling default CentOS repos..."
  for FILE in /etc/yum.repos.d/CentOS-*.repo; do 
    sed -i 's/enabled=1/enabled=0/' ${FILE}
    sed -i '/gpgcheck/a enabled=0' ${FILE}
  done
elif [[ ${distro,,} == "oracle" ]]; then
# Disable Oracle default system repos
  echo -e "\n>> Disabling default Oracle repos..."
  for FILE in /etc/yum.repos.d/public-yum-ol*.repo; do
    sed -i 's/enabled=1/enabled=0/' ${FILE}
    sed -i '/gpgcheck/a enabled=0' ${FILE}
  done
fi
 
# Disable temporary epel repo
echo -e "\n>> Disabling default epel repos..."
sed -i 's/enabled=1/enabled=0/' /etc/yum.repos.d/epel.repo
sed -i 's/enabled=1/enabled=0/' /etc/yum.repos.d/epel-testing.repo
 
# Show repos
echo -e "\n>> Active repos are:"
yum repolist
 
# Show website
echo -e "\n>> System should appear in the Spacewalk portal at: https://${sw_server}/rhn/systems/Registered.do"
 
echo -e "\n\n#=================================================================="
echo "# Spacewalk Registration Completed."
echo "#=================================================================="
exit 0