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32 lines
1.3 KiB
Markdown
32 lines
1.3 KiB
Markdown
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# Bare metal provisioning (PXE boot)
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```mermaid
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flowchart TD
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subgraph controller[Initial controller]
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Ansible
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dhcp[DHCP server]
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tftp[TFTP server]
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http[HTTP server]
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end
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machine[Bare metal machine]
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Ansible -. 1 .-> machine
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machine <-. 2, 3 .-> dhcp
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machine <-. 4, 5 .-> tftp
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machine <-. 6, 7 .-> http
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```
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1. Ansible: Hey MAC address `xx:xx:xx:xx:xx:xx`, wake up!
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2. Machine: Hello everyone, I just woke up in network mode, could someone please show me how to boot?
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3. DHCP server: I hear you, here's your IP address, proceed to the next server to obtain your bootloader.
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4. Machine: Hello, could you please send me my bootloader?
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5. TFTP server: Here you go. Grab your boot configuration, kernel, and initial ramdisk as well.
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6. Machine: Hi, I just booted into my bootloader, and my boot parameters instructed me to get the installation instructions, packages, etc. from this site.
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7. HTTP server: It's all yours.
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8. Machine: Great, now I can install the OS and reboot!
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Here's how it looks like in action:
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<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/y-d7btNNAT8" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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