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<p class="MsoPlainText">Hi Experts,</p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I’m looking for correct procedure to change the hostname of a running compute in Ocata OpenStack.</p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Here are the steps in my mind.</p>
<p class="MsoPlainText"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoPlainText" style="margin-left:0in;mso-list:l0 level1 lfo2">Change the /etc/hosts file
</li><li class="MsoPlainText" style="margin-left:0in;mso-list:l0 level1 lfo2">Change the hostname using “hostnamectl set-hostname <new hostname>”</li><li class="MsoPlainText" style="margin-left:0in;mso-list:l0 level1 lfo2">Reboot the host. Here I’m not sure if we can avoid a reboot and restart few services on compute and controller node. Please suggest.</li><li class="MsoPlainText" style="margin-left:0in;mso-list:l0 level1 lfo2">After host is online, check “openstack compute service list” output.</li><li class="MsoPlainText" style="margin-left:0in;mso-list:l0 level1 lfo2">Remove old hostname entry on controller using “openstack compute service delete”.
</li><li class="MsoPlainText" style="margin-left:0in;mso-list:l0 level1 lfo2">Restart nova-api service to update the DB. Please correct. If I’m wrong</li></ol>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Regards,</p>
<p class="MsoPlainText">Sunny</p>
<p class="MsoPlainText"><o:p> </o:p></p>
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