Disable Hyper-V KVP daemon for Ubuntu AMI #316
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When launching Ubuntu 18.04 AMIs, it can be seen from the console output that that a kernel daemon fails on startup, with the name "Dependency failed for Hyper-V KVP Protocol Daemon." This adds over 60 seconds of boot time to the instance. Since AMIs are only running on AWS, there is no need for a Hyper-V daemon, and it can safely be disabled. The same steps were taken for OVAs/ESX images months ago.
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So I stumbled across this today when building Ubuntu AMIs and taking a look at the console output (something I had not done before). I noticed that it was relatively slow (IMO, and compared to AL2) to be able to SSH in after the instance showed as running. Then I saw this on the console:
I've seen that before! The exact same thing was fixed for OVAs about six months ago: c06617b
Let's give everyone launching Ubuntu 18.04 AMIs ~90 seconds off their boot time.
/assign @detiber
Time to cloud-init is finished before:
[ 108.766451] cloud-init[1272]: Cloud-init v. 20.2-45-g5f7825e2-0ubuntu1~18.04.1 running 'modules:final' at Wed, 05 Aug 2020 01:16:43 +0000. Up 108.60 seconds.After:
[ 23.096428] cloud-init[1129]: Cloud-init v. 20.2-45-g5f7825e2-0ubuntu1~18.04.1 running 'modules:final' at Wed, 05 Aug 2020 02:22:51 +0000. Up 22.94 seconds.