Upgrade Buildroot to 2021.02 LTS with Linux 4.19

[afbjorklund]

Upgrade kernel minor version to distribution default

Add patch to allow building go inside minikube mod

Add sysctl override to revert systemd 245+ rp_filter

BR2_PACKAGE_LUAJIT
Make sure to build lua required for sysdig

BR2_PACKAGE_LZ4_PROGS
Make sure to build lz4 required for preload

BR2_PACKAGE_UTIL_LINUX_BINARIES
Make sure to build lsblk required for automount

---

Squashed version of PR #11688, but upgraded from 2021.02.3 to 2021.02.4 and with systemd patch for cilium

Go compiler upgraded from go1.15.13 to go1.15.15, rebased back-port to be able to build in minikube module

For #11652

Closes #11810

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: afbjorklund

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[minikube-bot]

Hi @afbjorklund, building a new ISO failed.
See the logs at: https://storage.cloud.google.com/minikube-builds/logs/12268/iso-80/iso_build.txt

[afbjorklund]

ok-to-build-iso

[afbjorklund]

Built OK here

                         _             _            
            _         _ ( )           ( )           
  ___ ___  (_)  ___  (_)| |/')  _   _ | |_      __  
/' _ ` _ `\| |/' _ `\| || , <  ( ) ( )| '_`\  /'__`\
| ( ) ( ) || || ( ) || || |\`\ | (_) || |_) )(  ___/
(_) (_) (_)(_)(_) (_)(_)(_) (_)`\___/'(_,__/'`\____)

$ uname -a
Linux minikube 4.19.202 #1 SMP Sat Aug 14 21:54:23 CEST 2021 x86_64 GNU/Linux
$ grep PRETTY /etc/os-release 
PRETTY_NAME="Buildroot 2021.02.4"

Seems to work OK, with --cni=cilium

[minikube-bot]

Hi @afbjorklund, we have updated your PR with the reference to newly built ISO. Pull the changes locally if you want to test with them or update your PR further.

[medyagh]

ok-to-test

[afbjorklund]

/ok-to-test

[minikube-pr-bot]

kvm2 driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 12268) |
+----------------+----------+---------------------+
| minikube start | 49.4s    | 47.9s               |
| enable ingress | 31.4s    | 31.3s               |
+----------------+----------+---------------------+

Times for minikube start: 52.6s 50.0s 49.0s 47.7s 47.7s
Times for minikube (PR 12268) start: 50.3s 47.1s 47.0s 47.5s 47.6s

Times for minikube (PR 12268) ingress: 31.3s 30.3s 31.9s 31.4s 31.8s
Times for minikube ingress: 31.8s 32.7s 31.3s 30.8s 30.4s

docker driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 12268) |
+----------------+----------+---------------------+
| minikube start | 21.8s    | 22.0s               |
| enable ingress | 33.6s    | 29.2s               |
+----------------+----------+---------------------+

Times for minikube start: 21.1s 22.4s 21.5s 23.2s 20.6s
Times for minikube (PR 12268) start: 22.6s 21.9s 22.0s 22.1s 21.2s

Times for minikube ingress: 35.0s 29.5s 27.5s 35.0s 41.0s
Times for minikube (PR 12268) ingress: 26.5s 35.0s 30.0s 27.5s 27.0s

docker driver with containerd runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 12268) |
+----------------+----------+---------------------+
| minikube start | 41.6s    | 43.8s               |
| enable ingress |          |                     |
+----------------+----------+---------------------+

Times for minikube start: 32.2s 44.4s 42.8s 44.4s 44.1s
Times for minikube (PR 12268) start: 43.3s 44.0s 44.0s 44.4s 43.2s

[minikube-pr-bot]

These are the flake rates of all failed tests.

Environment	Failed Tests	Flake Rate (%)
KVM_Linux_crio	TestNetworkPlugins/group/custom-weave/Start (gopogh)	0.00 (chart)
Docker_Linux_crio_arm64	TestStartStop/group/newest-cni/serial/SecondStart (gopogh)	1.11 (chart)
KVM_Linux_crio	TestAddons/parallel/Olm (gopogh)	3.92 (chart)
Docker_Linux_crio	TestNetworkPlugins/group/bridge/DNS (gopogh)	5.03 (chart)
Docker_Windows	TestStartStop/group/no-preload/serial/SecondStart (gopogh)	15.25 (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_debian (gopogh)	10/kvm2-driver (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_debian (gopogh)	9/kvm2-driver (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_debian (gopogh)	latest/kvm2-driver (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_debian (gopogh)	sid/kvm2-driver (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_ubuntu (gopogh)	18.04/kvm2-driver (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_ubuntu (gopogh)	20.04/kvm2-driver (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_ubuntu (gopogh)	20.10/kvm2-driver (chart)
Hyperkit_macOS	TestDebPackageInstall/install_amd64_ubuntu (gopogh)	latest/kvm2-driver (chart)
KVM_Linux_containerd	TestStartStop/group/newest-cni/serial/Pause (gopogh)	19.25 (chart)
Docker_Linux_crio	TestStartStop/group/default-k8s-different-port/serial/Pause (gopogh)	23.89 (chart)
KVM_Linux_containerd	TestStartStop/group/default-k8s-different-port/serial/Pause (gopogh)	24.22 (chart)
KVM_Linux_containerd	TestStartStop/group/old-k8s-version/serial/Pause (gopogh)	24.22 (chart)
KVM_Linux_containerd	TestPause/serial/Pause (gopogh)	24.84 (chart)
KVM_Linux_containerd	TestPause/serial/VerifyStatus (gopogh)	24.84 (chart)
KVM_Linux_containerd	TestStartStop/group/embed-certs/serial/Pause (gopogh)	24.84 (chart)
KVM_Linux_containerd	TestStartStop/group/no-preload/serial/Pause (gopogh)	24.84 (chart)
KVM_Linux_crio	TestStartStop/group/old-k8s-version/serial/Pause (gopogh)	25.17 (chart)
KVM_Linux_crio	TestStartStop/group/newest-cni/serial/Pause (gopogh)	25.32 (chart)
KVM_Linux_crio	TestStartStop/group/default-k8s-different-port/serial/Pause (gopogh)	25.49 (chart)
Docker_Windows	TestInsufficientStorage (gopogh)	25.53 (chart)
Docker_Linux_containerd	TestStartStop/group/default-k8s-different-port/serial/Pause (gopogh)	25.62 (chart)
KVM_Linux_crio	TestStartStop/group/embed-certs/serial/Pause (gopogh)	25.97 (chart)
Docker_Linux_containerd	TestStartStop/group/newest-cni/serial/Pause (gopogh)	26.25 (chart)
KVM_Linux_crio	TestPause/serial/Pause (gopogh)	26.32 (chart)
KVM_Linux_crio	TestPause/serial/VerifyStatus (gopogh)	26.32 (chart)
More tests...	Continued...

Too many tests failed - See test logs for more details.

To see the flake rates of all tests by environment, click here.

[medyagh]

the failures are not related to this PR