diff options
Diffstat (limited to 'gemfeed')
| -rw-r--r-- | gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.html | 76 | ||||
| -rw-r--r-- | gemfeed/atom.xml | 78 |
2 files changed, 127 insertions, 27 deletions
diff --git a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.html b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.html index 80ba4748..32e73b23 100644 --- a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.html +++ b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.html @@ -59,8 +59,9 @@ <li>⇢ <a href='#cpu-throttling'>CPU throttling</a></li> <li><a href='#wake-on-lan-setup'>Wake-on-LAN Setup</a></li> <li>⇢ <a href='#setting-up-wol-on-the-laptop'>Setting up WoL on the laptop</a></li> -<li>⇢ <a href='#testing-wol'>Testing WoL</a></li> +<li>⇢ <a href='#testing-wol-and-shutdown'>Testing WoL and Shutdown</a></li> <li>⇢ <a href='#wol-from-wifi'>WoL from WiFi</a></li> +<li>⇢ <a href='#remote-shutdown-via-ssh'>Remote Shutdown via SSH</a></li> <li>⇢ <a href='#bios-configuration'>BIOS Configuration</a></li> <li><a href='#conclusion'>Conclusion</a></li> </ul><br /> @@ -371,20 +372,28 @@ http://www.gnu.org/software/src-highlite --> <pre>[paul@earth]~% sudo dnf install -y wol </pre> <br /> -<span>Next, I created a simple script (<span class='inlinecode'>~/bin/wol-f3s</span>) to wake the machines:</span><br /> +<span>Next, I created a simple script (<span class='inlinecode'>~/bin/wol-f3s</span>) to wake and shutdown the machines:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> <pre><i><font color="silver">#!/bin/bash</font></i> -<i><font color="silver"># Wake-on-LAN script for f3s cluster (f0, f1, f2)</font></i> +<i><font color="silver"># Wake-on-LAN and shutdown script for f3s cluster (f0, f1, f2)</font></i> <i><font color="silver"># MAC addresses</font></i> F0_MAC=<font color="#808080">"e8:ff:1e:d7:1c:ac"</font> <i><font color="silver"># f0 (192.168.1.130)</font></i> F1_MAC=<font color="#808080">"e8:ff:1e:d7:1e:44"</font> <i><font color="silver"># f1 (192.168.1.131)</font></i> F2_MAC=<font color="#808080">"e8:ff:1e:d7:1c:a0"</font> <i><font color="silver"># f2 (192.168.1.132)</font></i> +<i><font color="silver"># IP addresses</font></i> +F0_IP=<font color="#808080">"192.168.1.130"</font> +F1_IP=<font color="#808080">"192.168.1.131"</font> +F2_IP=<font color="#808080">"192.168.1.132"</font> + +<i><font color="silver"># SSH user</font></i> +SSH_USER=<font color="#808080">"paul"</font> + <i><font color="silver"># Broadcast address for your LAN</font></i> BROADCAST=<font color="#808080">"192.168.1.255"</font> @@ -395,7 +404,18 @@ wake() { wol -i <font color="#808080">"$BROADCAST"</font> <font color="#808080">"$mac"</font> } -<b><u><font color="#000000">case</font></u></b> <font color="#808080">"${1:-all}"</font> <b><u><font color="#000000">in</font></u></b> +shutdown_host() { + <b><u><font color="#000000">local</font></u></b> name=$1 + <b><u><font color="#000000">local</font></u></b> ip=$2 + echo <font color="#808080">"Shutting down $name ($ip)..."</font> + ssh -o ConnectTimeout=<font color="#000000">5</font> <font color="#808080">"$SSH_USER@$ip"</font> <font color="#808080">"doas poweroff"</font> <font color="#000000">2</font>>/dev/null && \ + echo <font color="#808080">" ✓ Shutdown command sent to $name"</font> || \ + echo <font color="#808080">" ✗ Failed to reach $name (already down?)"</font> +} + +ACTION=<font color="#808080">"${1:-all}"</font> + +<b><u><font color="#000000">case</font></u></b> <font color="#808080">"$ACTION"</font> <b><u><font color="#000000">in</font></u></b> f0) wake <font color="#808080">"f0"</font> <font color="#808080">"$F0_MAC"</font> ;; f1) wake <font color="#808080">"f1"</font> <font color="#808080">"$F1_MAC"</font> ;; f2) wake <font color="#808080">"f2"</font> <font color="#808080">"$F2_MAC"</font> ;; @@ -404,8 +424,16 @@ wake() { wake <font color="#808080">"f1"</font> <font color="#808080">"$F1_MAC"</font> wake <font color="#808080">"f2"</font> <font color="#808080">"$F2_MAC"</font> ;; + shutdown|poweroff|down) + shutdown_host <font color="#808080">"f0"</font> <font color="#808080">"$F0_IP"</font> + shutdown_host <font color="#808080">"f1"</font> <font color="#808080">"$F1_IP"</font> + shutdown_host <font color="#808080">"f2"</font> <font color="#808080">"$F2_IP"</font> + echo <font color="#808080">""</font> + echo <font color="#808080">"✓ Shutdown commands sent to all machines."</font> + <b><u><font color="#000000">exit</font></u></b> <font color="#000000">0</font> + ;; *) - echo <font color="#808080">"Usage: $0 [f0|f1|f2|all]"</font> + echo <font color="#808080">"Usage: $0 [f0|f1|f2|all|shutdown]"</font> <b><u><font color="#000000">exit</font></u></b> <font color="#000000">1</font> ;; <b><u><font color="#000000">esac</font></u></b> @@ -414,27 +442,34 @@ echo <font color="#808080">""</font> echo <font color="#808080">"✓ WoL packets sent. Machines should boot in a few seconds."</font> </pre> <br /> -<span>After making the script executable with <span class='inlinecode'>chmod +x ~/bin/wol-f3s</span>, I can now wake the machines with simple commands:</span><br /> +<span>After making the script executable with <span class='inlinecode'>chmod +x ~/bin/wol-f3s</span>, I can now control the machines with simple commands:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> -<pre>[paul@earth]~% wol-f3s <i><font color="silver"># Wake all three</font></i> -[paul@earth]~% wol-f3s f0 <i><font color="silver"># Wake only f0</font></i> +<pre>[paul@earth]~% wol-f3s <i><font color="silver"># Wake all three</font></i> +[paul@earth]~% wol-f3s f0 <i><font color="silver"># Wake only f0</font></i> +[paul@earth]~% wol-f3s shutdown <i><font color="silver"># Shutdown all three via SSH</font></i> </pre> <br /> -<h2 style='display: inline' id='testing-wol'>Testing WoL</h2><br /> +<h2 style='display: inline' id='testing-wol-and-shutdown'>Testing WoL and Shutdown</h2><br /> <br /> -<span>To test the setup, I shutdown all three machines:</span><br /> +<span>To test the setup, I shutdown all three machines using the script's shutdown function:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> -<pre>[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.130</font> <font color="#808080">"doas poweroff"</font> -[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.131</font> <font color="#808080">"doas poweroff"</font> -[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.132</font> <font color="#808080">"doas poweroff"</font> +<pre>[paul@earth]~% wol-f3s shutdown +Shutting down f0 (<font color="#000000">192.168</font>.<font color="#000000">1.130</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f0 +Shutting down f1 (<font color="#000000">192.168</font>.<font color="#000000">1.131</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f1 +Shutting down f2 (<font color="#000000">192.168</font>.<font color="#000000">1.132</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f2 + +✓ Shutdown commands sent to all machines. </pre> <br /> <span>After waiting for them to fully power down (about 1 minute), I sent the WoL magic packets:</span><br /> @@ -462,6 +497,21 @@ Waking up e8:ff:1e:d7:1c:a0... <br /> <span>This makes WoL very convenient - I can wake the cluster from anywhere in my home, whether I'm on WiFi or ethernet.</span><br /> <br /> +<h2 style='display: inline' id='remote-shutdown-via-ssh'>Remote Shutdown via SSH</h2><br /> +<br /> +<span>While Wake-on-LAN handles powering on the machines remotely, I also added a shutdown function to the script for convenience. The <span class='inlinecode'>wol-f3s shutdown</span> command uses SSH to connect to each machine and execute <span class='inlinecode'>doas poweroff</span>, gracefully shutting them all down.</span><br /> +<br /> +<span>This is particularly useful for power saving - when I'm done working with the cluster for the day, I can simply run:</span><br /> +<br /> +<!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre>[paul@earth]~% wol-f3s shutdown +</pre> +<br /> +<span>And all three machines will shut down cleanly. The next time I need them, a simple <span class='inlinecode'>wol-f3s</span> command wakes them all back up. This combination makes the cluster very energy-efficient while maintaining quick access when needed.</span><br /> +<br /> <h2 style='display: inline' id='bios-configuration'>BIOS Configuration</h2><br /> <br /> <span>For WoL to work reliably, make sure to check the BIOS settings on each Beelink:</span><br /> diff --git a/gemfeed/atom.xml b/gemfeed/atom.xml index da1b65c7..d9eda66d 100644 --- a/gemfeed/atom.xml +++ b/gemfeed/atom.xml @@ -1,6 +1,6 @@ <?xml version="1.0" encoding="utf-8"?> <feed xmlns="http://www.w3.org/2005/Atom"> - <updated>2026-01-11T10:37:38+02:00</updated> + <updated>2026-01-11T10:46:34+02:00</updated> <title>foo.zone feed</title> <subtitle>To be in the .zone!</subtitle> <link href="https://foo.zone/gemfeed/atom.xml" rel="self" /> @@ -13637,8 +13637,9 @@ Jan 26 17:36:32 f2 apcupsd[2159]: apcupsd shutdown succeeded <li>⇢ <a href='#cpu-throttling'>CPU throttling</a></li> <li><a href='#wake-on-lan-setup'>Wake-on-LAN Setup</a></li> <li>⇢ <a href='#setting-up-wol-on-the-laptop'>Setting up WoL on the laptop</a></li> -<li>⇢ <a href='#testing-wol'>Testing WoL</a></li> +<li>⇢ <a href='#testing-wol-and-shutdown'>Testing WoL and Shutdown</a></li> <li>⇢ <a href='#wol-from-wifi'>WoL from WiFi</a></li> +<li>⇢ <a href='#remote-shutdown-via-ssh'>Remote Shutdown via SSH</a></li> <li>⇢ <a href='#bios-configuration'>BIOS Configuration</a></li> <li><a href='#conclusion'>Conclusion</a></li> </ul><br /> @@ -13949,20 +13950,28 @@ http://www.gnu.org/software/src-highlite --> <pre>[paul@earth]~% sudo dnf install -y wol </pre> <br /> -<span>Next, I created a simple script (<span class='inlinecode'>~/bin/wol-f3s</span>) to wake the machines:</span><br /> +<span>Next, I created a simple script (<span class='inlinecode'>~/bin/wol-f3s</span>) to wake and shutdown the machines:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> <pre><i><font color="silver">#!/bin/bash</font></i> -<i><font color="silver"># Wake-on-LAN script for f3s cluster (f0, f1, f2)</font></i> +<i><font color="silver"># Wake-on-LAN and shutdown script for f3s cluster (f0, f1, f2)</font></i> <i><font color="silver"># MAC addresses</font></i> F0_MAC=<font color="#808080">"e8:ff:1e:d7:1c:ac"</font> <i><font color="silver"># f0 (192.168.1.130)</font></i> F1_MAC=<font color="#808080">"e8:ff:1e:d7:1e:44"</font> <i><font color="silver"># f1 (192.168.1.131)</font></i> F2_MAC=<font color="#808080">"e8:ff:1e:d7:1c:a0"</font> <i><font color="silver"># f2 (192.168.1.132)</font></i> +<i><font color="silver"># IP addresses</font></i> +F0_IP=<font color="#808080">"192.168.1.130"</font> +F1_IP=<font color="#808080">"192.168.1.131"</font> +F2_IP=<font color="#808080">"192.168.1.132"</font> + +<i><font color="silver"># SSH user</font></i> +SSH_USER=<font color="#808080">"paul"</font> + <i><font color="silver"># Broadcast address for your LAN</font></i> BROADCAST=<font color="#808080">"192.168.1.255"</font> @@ -13973,7 +13982,18 @@ wake() { wol -i <font color="#808080">"$BROADCAST"</font> <font color="#808080">"$mac"</font> } -<b><u><font color="#000000">case</font></u></b> <font color="#808080">"${1:-all}"</font> <b><u><font color="#000000">in</font></u></b> +shutdown_host() { + <b><u><font color="#000000">local</font></u></b> name=$1 + <b><u><font color="#000000">local</font></u></b> ip=$2 + echo <font color="#808080">"Shutting down $name ($ip)..."</font> + ssh -o ConnectTimeout=<font color="#000000">5</font> <font color="#808080">"$SSH_USER@$ip"</font> <font color="#808080">"doas poweroff"</font> <font color="#000000">2</font>>/dev/null && \ + echo <font color="#808080">" ✓ Shutdown command sent to $name"</font> || \ + echo <font color="#808080">" ✗ Failed to reach $name (already down?)"</font> +} + +ACTION=<font color="#808080">"${1:-all}"</font> + +<b><u><font color="#000000">case</font></u></b> <font color="#808080">"$ACTION"</font> <b><u><font color="#000000">in</font></u></b> f0) wake <font color="#808080">"f0"</font> <font color="#808080">"$F0_MAC"</font> ;; f1) wake <font color="#808080">"f1"</font> <font color="#808080">"$F1_MAC"</font> ;; f2) wake <font color="#808080">"f2"</font> <font color="#808080">"$F2_MAC"</font> ;; @@ -13982,8 +14002,16 @@ wake() { wake <font color="#808080">"f1"</font> <font color="#808080">"$F1_MAC"</font> wake <font color="#808080">"f2"</font> <font color="#808080">"$F2_MAC"</font> ;; + shutdown|poweroff|down) + shutdown_host <font color="#808080">"f0"</font> <font color="#808080">"$F0_IP"</font> + shutdown_host <font color="#808080">"f1"</font> <font color="#808080">"$F1_IP"</font> + shutdown_host <font color="#808080">"f2"</font> <font color="#808080">"$F2_IP"</font> + echo <font color="#808080">""</font> + echo <font color="#808080">"✓ Shutdown commands sent to all machines."</font> + <b><u><font color="#000000">exit</font></u></b> <font color="#000000">0</font> + ;; *) - echo <font color="#808080">"Usage: $0 [f0|f1|f2|all]"</font> + echo <font color="#808080">"Usage: $0 [f0|f1|f2|all|shutdown]"</font> <b><u><font color="#000000">exit</font></u></b> <font color="#000000">1</font> ;; <b><u><font color="#000000">esac</font></u></b> @@ -13992,27 +14020,34 @@ echo <font color="#808080">""</font> echo <font color="#808080">"✓ WoL packets sent. Machines should boot in a few seconds."</font> </pre> <br /> -<span>After making the script executable with <span class='inlinecode'>chmod +x ~/bin/wol-f3s</span>, I can now wake the machines with simple commands:</span><br /> +<span>After making the script executable with <span class='inlinecode'>chmod +x ~/bin/wol-f3s</span>, I can now control the machines with simple commands:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> -<pre>[paul@earth]~% wol-f3s <i><font color="silver"># Wake all three</font></i> -[paul@earth]~% wol-f3s f0 <i><font color="silver"># Wake only f0</font></i> +<pre>[paul@earth]~% wol-f3s <i><font color="silver"># Wake all three</font></i> +[paul@earth]~% wol-f3s f0 <i><font color="silver"># Wake only f0</font></i> +[paul@earth]~% wol-f3s shutdown <i><font color="silver"># Shutdown all three via SSH</font></i> </pre> <br /> -<h2 style='display: inline' id='testing-wol'>Testing WoL</h2><br /> +<h2 style='display: inline' id='testing-wol-and-shutdown'>Testing WoL and Shutdown</h2><br /> <br /> -<span>To test the setup, I shutdown all three machines:</span><br /> +<span>To test the setup, I shutdown all three machines using the script's shutdown function:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> -<pre>[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.130</font> <font color="#808080">"doas poweroff"</font> -[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.131</font> <font color="#808080">"doas poweroff"</font> -[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.132</font> <font color="#808080">"doas poweroff"</font> +<pre>[paul@earth]~% wol-f3s shutdown +Shutting down f0 (<font color="#000000">192.168</font>.<font color="#000000">1.130</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f0 +Shutting down f1 (<font color="#000000">192.168</font>.<font color="#000000">1.131</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f1 +Shutting down f2 (<font color="#000000">192.168</font>.<font color="#000000">1.132</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f2 + +✓ Shutdown commands sent to all machines. </pre> <br /> <span>After waiting for them to fully power down (about 1 minute), I sent the WoL magic packets:</span><br /> @@ -14040,6 +14075,21 @@ Waking up e8:ff:1e:d7:1c:a0... <br /> <span>This makes WoL very convenient - I can wake the cluster from anywhere in my home, whether I'm on WiFi or ethernet.</span><br /> <br /> +<h2 style='display: inline' id='remote-shutdown-via-ssh'>Remote Shutdown via SSH</h2><br /> +<br /> +<span>While Wake-on-LAN handles powering on the machines remotely, I also added a shutdown function to the script for convenience. The <span class='inlinecode'>wol-f3s shutdown</span> command uses SSH to connect to each machine and execute <span class='inlinecode'>doas poweroff</span>, gracefully shutting them all down.</span><br /> +<br /> +<span>This is particularly useful for power saving - when I'm done working with the cluster for the day, I can simply run:</span><br /> +<br /> +<!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre>[paul@earth]~% wol-f3s shutdown +</pre> +<br /> +<span>And all three machines will shut down cleanly. The next time I need them, a simple <span class='inlinecode'>wol-f3s</span> command wakes them all back up. This combination makes the cluster very energy-efficient while maintaining quick access when needed.</span><br /> +<br /> <h2 style='display: inline' id='bios-configuration'>BIOS Configuration</h2><br /> <br /> <span>For WoL to work reliably, make sure to check the BIOS settings on each Beelink:</span><br /> |