Ian Letourneau
b857412151
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128 lines
4.3 KiB
Django/Jinja
128 lines
4.3 KiB
Django/Jinja
# --- Pre-Boot Scripting (The Main Goal) ---
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# This section runs after the live environment has booted into RAM.
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# It sets up SSH and downloads/runs the harmony-inventory-agent.
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%pre --log=/root/ks-pre.log
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echo "Harmony Kickstart: Pre-boot script started."
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# 1. Configure SSH Access for Root
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# Create the .ssh directory and set correct permissions.
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echo " - Setting up SSH authorized_keys for root..."
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mkdir -p /root/.ssh
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chmod 700 /root/.ssh
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# Download the public key from the provisioning server.
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# The -sS flags make curl silent but show errors. -L follows redirects.
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curl -vSL "http://{{ gateway_ip }}:8080/{{ cluster_pubkey_filename }}" -o /root/.ssh/authorized_keys
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if [ $? -ne 0 ]; then
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echo " - ERROR: Failed to download SSH public key."
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else
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echo " - SSH key downloaded successfully."
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chmod 600 /root/.ssh/authorized_keys
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fi
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# 2. Download the Harmony Inventory Agent
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echo " - Downloading harmony-inventory-agent..."
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curl -vSL "http://{{ gateway_ip }}:8080/{{ harmony_inventory_agent }}" -o /usr/bin/harmony-inventory-agent
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if [ $? -ne 0 ]; then
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echo " - ERROR: Failed to download harmony_inventory_agent."
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else
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echo " - Agent binary downloaded successfully."
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chmod +x /usr/bin/harmony-inventory-agent
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fi
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# 3. Create a systemd service to run the agent persistently.
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# This is the most robust method to ensure the agent stays running.
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echo " - Creating systemd service for the agent..."
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cat > /etc/systemd/system/harmony-agent.service << EOF
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[Unit]
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Description=Harmony Inventory Agent
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After=network-online.target
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Wants=network-online.target
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[Service]
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Type=simple
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ExecStart=/usr/bin/harmony-inventory-agent
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Restart=on-failure
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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EOF
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# 4. Enable and start the service
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# The 'systemctl' commands will work correctly within the chroot environment of the %pre script.
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echo " - Enabling and starting harmony-agent.service..."
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systemctl daemon-reload
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systemctl enable --now harmony-agent.service
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# Check if the service started correctly
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systemctl is-active --quiet harmony-agent.service
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if [ $? -eq 0 ]; then
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echo " - Harmony Inventory Agent service is now running."
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else
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echo " - ERROR: Harmony Inventory Agent service failed to start."
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fi
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echo "Harmony Kickstart: Pre-boot script finished. The machine is ready for inventory."
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echo "Running cat - to pause system indefinitely"
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cat -
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%end
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# =================================================================
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# Harmony Discovery Agent - Kickstart File (NON-INSTALL, LIVE BOOT)
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# =================================================================
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#
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# This file achieves a fully automated, non-interactive boot into a
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# live CentOS environment. It does NOT install to disk.
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#
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# --- Automation and Interaction Control ---
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# Perform the installation in command-line mode. This is critical for
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# preventing Anaconda from starting a UI and halting for input.
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cmdline
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# Accept the End User License Agreement to prevent a prompt.
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eula --agreed
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# --- Core System Configuration (Required by Anaconda) ---
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# Set keyboard and language. These are mandatory.
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keyboard --vckeymap=us --xlayouts='us'
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lang en_US.UTF-8
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# Configure networking. This is essential for the %post script to work.
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# The --activate flag ensures this device is brought up in the installer environment.
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network --bootproto=dhcp --device=link --activate
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# Set a locked root password. This is a mandatory command.
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rootpw --lock
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# Set the timezone. This is a mandatory command.
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timezone UTC
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# --- Disable Installation-Specific Features ---
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# CRITICAL: Do not install a bootloader. The --disabled flag prevents
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# this step and avoids errors about where to install it.
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bootloader --disabled
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# CRITICAL: Ignore all disks. This prevents Anaconda from stopping at the
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# "Installation Destination" screen asking where to install.
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# ignoredisk --drives /dev/sda
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# Do not run the Initial Setup wizard on first boot.
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firstboot --disable
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# --- Package Selection ---
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# We are not installing, so this section can be minimal.
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# An empty %packages section is valid and ensures no time is wasted
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# resolving dependencies for an installation that will not happen.
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%packages
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%end
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# IMPORTANT: Do not include a final action command like 'reboot' or 'poweroff'.
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# The default action is 'halt', which in cmdline mode will leave the system
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# running in the live environment with the agent active, which is the desired state.
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