0d5f87e08f
The script will run for every k8s upgrade as a part of the
control-plane upgrade of the first master.
It updates kubeadm-config configmap to configure kube-apiserver
manifest with RemoveSelfLink=false.
The kubelet config override file is consumed by
kubeadm upgrade apply to configure cgroupDriver=cgroupfs.
Kubernetes changed default cgroupDriver cgroupfs to systemd
from k8s 1.21. We need to configure cgroupDriver with 'cgroupfs'
in the kubelet config otherwise kubelet will fail to launch.
Kubernetes changed kube-apiserver feature-gate RemoveSelfLink
default value to true from k8s 1.20 onwards.
This caused PVCs to not bound to PVs and eventually caused some
system apps to fail. We need to configure the kube-apiserver
feature-gates with RemoveSelfLink=false to avoid it until we can
update the application code to handle the new behaviour.
Test Plan:
PASS: successful testing of the script during k8s version upgrades
from 1.18 -> 1.19 -> 1.20 -> 1.21 on AIO-DX system.
Verified that PVCs are bound to PVs after each upgrade.
Verified that pods are up and running after each upgrade.
Verified that kube-apiserver manifest and kubelet config
file is configured as expected after each upgrade.
PASS: 'build-pkgs --dep-test kubernetes-unversioned'
package built with dependencies passed
Story: 2008972
Task: 44037
Signed-off-by: kdhokte <kaustubh.dhokte@windriver.com>
Change-Id: Ie53ebb5839eb0bd843f5bb2c577a4292969c0997
147 lines
4.5 KiB
RPMSpec
147 lines
4.5 KiB
RPMSpec
#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Copyright (c) 2021 Wind River Systems, Inc.
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#
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%define debug_package %{nil}
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%define local_sbindir /usr/local/sbin
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%global _k8s_name kubernetes
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# Used to simplify the paths for install and files
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%global _curr_stage1 %{_exec_prefix}/local/kubernetes/current/stage1
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%global _curr_stage2 %{_exec_prefix}/local/kubernetes/current/stage2
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# https://github.com/kubernetes/contrib
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%global con_provider github
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%global con_provider_tld com
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%global con_project kubernetes
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%global con_repo kubernetes-contrib
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%global con_commit 1.18.1
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##############################################
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Name: kubernetes-unversioned
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Version: 1.0
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Release: 1%{?_tis_dist}.%{tis_patch_ver}
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Summary: Kubernetes unversioned common config and current version symlinks
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License: Apache-2.0
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Group: base
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Packager: Wind River <info@windriver.com>
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URL: unknown
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Source0: LICENSE
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Source1: %{con_repo}-v%{con_commit}.tar.gz
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# systemd resource control enable CPU and Memory accounting for cgroups
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Source2: kubernetes-accounting.conf
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# kubelet config overrides parameters
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Source3: kubelet_override.yaml
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Source4: upgrade_k8s_config.sh
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Patch1: kubelet-service-remove-docker-dependency.patch
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BuildArch: noarch
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BuildRequires: systemd-devel
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Requires: /bin/bash
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Requires: systemd
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%description
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%{summary}
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%prep
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%setup -q -n %{con_repo}-%{con_commit} -T -b 1
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mkdir contrib
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cp -r ../%{con_repo}-%{con_commit}/init contrib/.
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%patch1 -p1
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cp %{SOURCE0} .
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%build
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%install
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stage1_link() {
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ln -v -sf %{_curr_stage1}$1/$2 %{buildroot}$1/$2
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}
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stage2_link() {
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ln -v -sf %{_curr_stage2}$1/$2 %{buildroot}$1/$2
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}
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# Current staged directories
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install -v -m 755 -d %{buildroot}%{_curr_stage1}
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install -v -m 755 -d %{buildroot}%{_curr_stage2}
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# Symlink targets
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install -v -m 755 -d %{buildroot}%{_bindir}
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install -v -m 755 -d %{buildroot}%{_sysconfdir}/systemd/system/kubelet.service.d
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install -v -m 755 -d %{buildroot}%{_datadir}/bash-completion/completions
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stage1_link %{_bindir} kubeadm
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stage2_link %{_sysconfdir}/systemd/system/kubelet.service.d kubeadm.conf
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stage2_link %{_datadir}/bash-completion/completions kubectl
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stage2_link %{_bindir} kubelet-cgroup-setup.sh
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stage2_link %{_bindir} kubelet
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stage2_link %{_bindir} kubectl
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# install environment files
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install -v -d -m 0755 %{buildroot}%{_sysconfdir}/%{_k8s_name}
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install -v -m 644 -t %{buildroot}%{_sysconfdir}/%{_k8s_name} contrib/init/systemd/environ/{config,kubelet,kubelet.kubeconfig,proxy}
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# install config files
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install -v -d -m 0755 %{buildroot}%{_tmpfilesdir}
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install -v -p -m 0644 -t %{buildroot}/%{_tmpfilesdir} contrib/init/systemd/tmpfiles.d/kubernetes.conf
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mkdir -p %{buildroot}/run
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install -v -d -m 0755 %{buildroot}/run/%{_k8s_name}/
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install -p -D -m 644 %{SOURCE3} %{buildroot}%{_sysconfdir}/%{_k8s_name}/kubelet_override.yaml
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install -d %{buildroot}%{local_sbindir}
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# install execution scripts
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install -m 700 %{SOURCE4} %{buildroot}/%{local_sbindir}/upgrade_k8s_config.sh
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# install service files
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install -v -d -m 0755 %{buildroot}%{_unitdir}
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install -v -m 0644 -t %{buildroot}%{_unitdir} contrib/init/systemd/kubelet.service
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# install the place the kubelet defaults to put volumes (/var/lib/kubelet)
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install -v -d %{buildroot}%{_sharedstatedir}/kubelet
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# enable CPU and Memory accounting
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install -v -d -m 0755 %{buildroot}/%{_sysconfdir}/systemd/system.conf.d
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install -v -p -m 0644 -t %{buildroot}/%{_sysconfdir}/systemd/system.conf.d %{SOURCE2}
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%files
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%defattr(-,root,root,-)
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%license LICENSE
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%dir %{_curr_stage1}
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%dir %{_curr_stage2}
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# the following are execution scripts
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%{local_sbindir}/upgrade_k8s_config.sh
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# the following are symlinks
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%{_bindir}/kubeadm
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%{_bindir}/kubelet
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%{_bindir}/kubelet-cgroup-setup.sh
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%{_bindir}/kubectl
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%dir %{_sysconfdir}/systemd/system/kubelet.service.d
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%{_sysconfdir}/systemd/system/kubelet.service.d/kubeadm.conf
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%{_datadir}/bash-completion/completions/kubectl
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# the following are common config, environment, service
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%{_unitdir}/kubelet.service
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%dir %{_sharedstatedir}/kubelet
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%dir %{_sysconfdir}/%{_k8s_name}
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%config(noreplace) %{_sysconfdir}/%{_k8s_name}/config
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%config(noreplace) %{_sysconfdir}/%{_k8s_name}/kubelet
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%config(noreplace) %{_sysconfdir}/%{_k8s_name}/kubelet.kubeconfig
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%config(noreplace) %{_sysconfdir}/%{_k8s_name}/kubelet_override.yaml
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%config(noreplace) %{_sysconfdir}/%{_k8s_name}/proxy
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%config(noreplace) %{_sysconfdir}/systemd/system.conf.d/kubernetes-accounting.conf
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%{_tmpfilesdir}/kubernetes.conf
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%verify(not size mtime md5) %attr(755, root,root) %dir /run/%{_k8s_name}
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%changelog
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