Poweroff server after 10 tries
Some faulty iPXE FW cannot load kernel or initrd file causing DoS on http server (especially when environment has hundreds of faulty nods). This patch changes the behavior to poweroff the hardware node after 10 unsuccessful retries to get kernel or initrd over http. Story: #2002928 Task: #22915 Change-Id: Iec4650499c51c4c7dac38c279728d294ed3434b6 Co-Authored-By: Julia Kreger <juliaashleykreger@gmail.com>
This commit is contained in:
Sergii Golovatiuk
Julia Kreger
parent
ea302a8cd5
commit
fe2608d00a
@ -1,14 +1,30 @@
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#!ipxe
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set attempts:int32 10
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set i:int32 0
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goto deploy
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:deploy
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imgfree
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kernel {% if pxe_options.ipxe_timeout > 0 %}--timeout {{ pxe_options.ipxe_timeout }} {% endif %}{{ pxe_options.deployment_aki_path }} selinux=0 troubleshoot=0 text {{ pxe_options.pxe_append_params|default("", true) }} BOOTIF=${mac} ipa-api-url={{ pxe_options['ipa-api-url'] }} initrd={{ pxe_options.initrd_filename|default("deploy_ramdisk", true) }} coreos.configdrive=0 || goto deploy
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kernel {% if pxe_options.ipxe_timeout > 0 %}--timeout {{ pxe_options.ipxe_timeout }} {% endif %}{{ pxe_options.deployment_aki_path }} selinux=0 troubleshoot=0 text {{ pxe_options.pxe_append_params|default("", true) }} BOOTIF=${mac} ipa-api-url={{ pxe_options['ipa-api-url'] }} initrd={{ pxe_options.initrd_filename|default("deploy_ramdisk", true) }} coreos.configdrive=0 || goto retry
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initrd {% if pxe_options.ipxe_timeout > 0 %}--timeout {{ pxe_options.ipxe_timeout }} {% endif %}{{ pxe_options.deployment_ari_path }} || goto deploy
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initrd {% if pxe_options.ipxe_timeout > 0 %}--timeout {{ pxe_options.ipxe_timeout }} {% endif %}{{ pxe_options.deployment_ari_path }} || goto retry
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boot
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:retry
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iseq ${i} ${attempts} && goto fail ||
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inc i
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echo No response, retrying in {i} seconds.
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sleep ${i}
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goto deploy
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:fail
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echo Failed to get a response after ${attempts} attempts
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echo Powering off in 30 seconds.
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sleep 30
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poweroff
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:boot_partition
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imgfree
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kernel {% if pxe_options.ipxe_timeout > 0 %}--timeout {{ pxe_options.ipxe_timeout }} {% endif %}{{ pxe_options.aki_path }} root={{ ROOT }} ro text {{ pxe_options.pxe_append_params|default("", true) }} initrd=ramdisk || goto boot_partition
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@ -1,14 +1,30 @@
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#!ipxe
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set attempts:int32 10
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set i:int32 0
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goto deploy
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:deploy
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imgfree
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kernel http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto deploy
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kernel http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto retry
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initrd http://1.2.3.4:1234/deploy_ramdisk || goto deploy
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initrd http://1.2.3.4:1234/deploy_ramdisk || goto retry
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boot
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:retry
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iseq ${i} ${attempts} && goto fail ||
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inc i
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echo No response, retrying in {i} seconds.
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sleep ${i}
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goto deploy
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:fail
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echo Failed to get a response after ${attempts} attempts
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echo Powering off in 30 seconds.
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sleep 30
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poweroff
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:boot_partition
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imgfree
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kernel http://1.2.3.4:1234/kernel root={{ ROOT }} ro text test_param initrd=ramdisk || goto boot_partition
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@ -1,14 +1,30 @@
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#!ipxe
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set attempts:int32 10
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set i:int32 0
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goto deploy
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:deploy
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imgfree
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kernel http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto deploy
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kernel http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto retry
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initrd http://1.2.3.4:1234/deploy_ramdisk || goto deploy
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initrd http://1.2.3.4:1234/deploy_ramdisk || goto retry
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boot
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:retry
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iseq ${i} ${attempts} && goto fail ||
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inc i
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echo No response, retrying in {i} seconds.
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sleep ${i}
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goto deploy
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:fail
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echo Failed to get a response after ${attempts} attempts
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echo Powering off in 30 seconds.
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sleep 30
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poweroff
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:boot_partition
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imgfree
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kernel http://1.2.3.4:1234/kernel root={{ ROOT }} ro text test_param initrd=ramdisk || goto boot_partition
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@ -1,14 +1,30 @@
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#!ipxe
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set attempts:int32 10
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set i:int32 0
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goto deploy
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:deploy
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imgfree
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kernel http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto deploy
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kernel http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto retry
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initrd http://1.2.3.4:1234/deploy_ramdisk || goto deploy
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initrd http://1.2.3.4:1234/deploy_ramdisk || goto retry
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boot
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:retry
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iseq ${i} ${attempts} && goto fail ||
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inc i
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echo No response, retrying in {i} seconds.
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sleep ${i}
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goto deploy
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:fail
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echo Failed to get a response after ${attempts} attempts
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echo Powering off in 30 seconds.
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sleep 30
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poweroff
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:boot_partition
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imgfree
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kernel http://1.2.3.4:1234/kernel root={{ ROOT }} ro text test_param initrd=ramdisk || goto boot_partition
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@ -1,14 +1,30 @@
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#!ipxe
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set attempts:int32 10
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set i:int32 0
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goto deploy
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:deploy
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imgfree
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kernel --timeout 120 http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto deploy
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kernel --timeout 120 http://1.2.3.4:1234/deploy_kernel selinux=0 troubleshoot=0 text test_param BOOTIF=${mac} ipa-api-url=http://192.168.122.184:6385 initrd=deploy_ramdisk coreos.configdrive=0 || goto retry
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initrd --timeout 120 http://1.2.3.4:1234/deploy_ramdisk || goto deploy
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initrd --timeout 120 http://1.2.3.4:1234/deploy_ramdisk || goto retry
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boot
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:retry
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iseq ${i} ${attempts} && goto fail ||
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inc i
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echo No response, retrying in {i} seconds.
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sleep ${i}
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goto deploy
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:fail
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echo Failed to get a response after ${attempts} attempts
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echo Powering off in 30 seconds.
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sleep 30
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poweroff
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:boot_partition
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imgfree
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kernel --timeout 120 http://1.2.3.4:1234/kernel root={{ ROOT }} ro text test_param initrd=ramdisk || goto boot_partition
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@ -0,0 +1,9 @@
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---
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fixes:
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- |
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Changes the iPXE behavior to retry a total of 10 times with an increasing
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backoff time between each retry in order to not create a Denial of Service
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situation with the iPXE HTTP server. Should the retries fail, the node will
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be powered-off after a warning is displayed on the console for 30 seconds.
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For more information, see
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`story <https://storyboard.openstack.org/#!/story/2002928>`_.
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