6a22b3adfe
This update modifies the Kubernetes patch kubeadm-create-platform-pods-with-zero-CPU-resources.patch to set the CoreDNS memory request to zero. Test Plan: PASS: Run all Kubelet, kubeadm, kubectl make tests for affected code. PASS: All affected versions of kubernetes package build successfully. PASS: Verify the CoreDNS pod by describing it and ensure that the memory request is set to zero. Story: 2011047 Task: 51024 Change-Id: If1ed7346817cc0de01589afb5add15c2f1621d54 Signed-off-by: Boovan Rajendran <boovan.rajendran@windriver.com>
119 lines
6.1 KiB
Diff
119 lines
6.1 KiB
Diff
From 1b5417b7c443c94ebce52df7d4b373242ba800c6 Mon Sep 17 00:00:00 2001
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From: Chris Friesen <chris.friesen@windriver.com>
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Date: Fri, 3 Sep 2021 18:05:15 -0400
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Subject: [PATCH] kubeadm: create platform pods with zero CPU resources
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We want to specify zero CPU resources when creating the manifests
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for the static platform pods, as a workaround for the lack of
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separate resource tracking for platform resources.
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We also specify zero CPU and Memory resources for the
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coredns deployment.
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manifests.go appears to be the main file for this, not
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sure if the others are used but I changed them just in case.
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Signed-off-by: Daniel Safta <daniel.safta@windriver.com>
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Signed-off-by: Boovan Rajendran <boovan.rajendran@windriver.com>
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---
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cluster/addons/dns/coredns/coredns.yaml.base | 4 ++--
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cluster/addons/dns/coredns/coredns.yaml.in | 4 ++--
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cluster/addons/dns/coredns/coredns.yaml.sed | 4 ++--
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cmd/kubeadm/app/phases/addons/dns/manifests.go | 4 ++--
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cmd/kubeadm/app/phases/controlplane/manifests.go | 6 +++---
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5 files changed, 11 insertions(+), 11 deletions(-)
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diff --git a/cluster/addons/dns/coredns/coredns.yaml.base b/cluster/addons/dns/coredns/coredns.yaml.base
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index e03559423e6..49e88afc976 100644
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--- a/cluster/addons/dns/coredns/coredns.yaml.base
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+++ b/cluster/addons/dns/coredns/coredns.yaml.base
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@@ -145,8 +145,8 @@ spec:
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limits:
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memory: __DNS__MEMORY__LIMIT__
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requests:
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- cpu: 100m
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- memory: 70Mi
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+ cpu: 0
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+ memory: 0
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args: [ "-conf", "/etc/coredns/Corefile" ]
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volumeMounts:
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- name: config-volume
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diff --git a/cluster/addons/dns/coredns/coredns.yaml.in b/cluster/addons/dns/coredns/coredns.yaml.in
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index 9b241370bea..78a23317b56 100644
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--- a/cluster/addons/dns/coredns/coredns.yaml.in
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+++ b/cluster/addons/dns/coredns/coredns.yaml.in
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@@ -145,8 +145,8 @@ spec:
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limits:
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memory: 'dns_memory_limit'
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requests:
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- cpu: 100m
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- memory: 70Mi
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+ cpu: 0
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+ memory: 0
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args: [ "-conf", "/etc/coredns/Corefile" ]
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volumeMounts:
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- name: config-volume
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diff --git a/cluster/addons/dns/coredns/coredns.yaml.sed b/cluster/addons/dns/coredns/coredns.yaml.sed
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index 561fdf9aea8..536513d1e9d 100644
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--- a/cluster/addons/dns/coredns/coredns.yaml.sed
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+++ b/cluster/addons/dns/coredns/coredns.yaml.sed
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@@ -145,8 +145,8 @@ spec:
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limits:
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memory: $DNS_MEMORY_LIMIT
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requests:
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- cpu: 100m
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- memory: 70Mi
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+ cpu: 0
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+ memory: 0
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args: [ "-conf", "/etc/coredns/Corefile" ]
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volumeMounts:
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- name: config-volume
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diff --git a/cmd/kubeadm/app/phases/addons/dns/manifests.go b/cmd/kubeadm/app/phases/addons/dns/manifests.go
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index bb5455a15ff..24b7112ae81 100644
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--- a/cmd/kubeadm/app/phases/addons/dns/manifests.go
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+++ b/cmd/kubeadm/app/phases/addons/dns/manifests.go
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@@ -106,8 +106,8 @@ spec:
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limits:
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memory: 170Mi
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requests:
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- cpu: 100m
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- memory: 70Mi
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+ cpu: 0
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+ memory: 0
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args: [ "-conf", "/etc/coredns/Corefile" ]
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volumeMounts:
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- name: config-volume
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diff --git a/cmd/kubeadm/app/phases/controlplane/manifests.go b/cmd/kubeadm/app/phases/controlplane/manifests.go
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index 8cd0bf577cd..b024263d8d1 100644
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--- a/cmd/kubeadm/app/phases/controlplane/manifests.go
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+++ b/cmd/kubeadm/app/phases/controlplane/manifests.go
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@@ -63,7 +63,7 @@ func GetStaticPodSpecs(cfg *kubeadmapi.ClusterConfiguration, endpoint *kubeadmap
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LivenessProbe: staticpodutil.LivenessProbe(staticpodutil.GetAPIServerProbeAddress(endpoint), "/livez", int(endpoint.BindPort), v1.URISchemeHTTPS),
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ReadinessProbe: staticpodutil.ReadinessProbe(staticpodutil.GetAPIServerProbeAddress(endpoint), "/readyz", int(endpoint.BindPort), v1.URISchemeHTTPS),
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StartupProbe: staticpodutil.StartupProbe(staticpodutil.GetAPIServerProbeAddress(endpoint), "/livez", int(endpoint.BindPort), v1.URISchemeHTTPS, cfg.APIServer.TimeoutForControlPlane),
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- Resources: staticpodutil.ComponentResources("250m"),
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+ Resources: staticpodutil.ComponentResources("0"),
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Env: kubeadmutil.GetProxyEnvVars(),
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}, mounts.GetVolumes(kubeadmconstants.KubeAPIServer),
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map[string]string{kubeadmconstants.KubeAPIServerAdvertiseAddressEndpointAnnotationKey: endpoint.String()}),
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@@ -75,7 +75,7 @@ func GetStaticPodSpecs(cfg *kubeadmapi.ClusterConfiguration, endpoint *kubeadmap
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VolumeMounts: staticpodutil.VolumeMountMapToSlice(mounts.GetVolumeMounts(kubeadmconstants.KubeControllerManager)),
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LivenessProbe: staticpodutil.LivenessProbe(staticpodutil.GetControllerManagerProbeAddress(cfg), "/healthz", kubeadmconstants.KubeControllerManagerPort, v1.URISchemeHTTPS),
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StartupProbe: staticpodutil.StartupProbe(staticpodutil.GetControllerManagerProbeAddress(cfg), "/healthz", kubeadmconstants.KubeControllerManagerPort, v1.URISchemeHTTPS, cfg.APIServer.TimeoutForControlPlane),
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- Resources: staticpodutil.ComponentResources("200m"),
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+ Resources: staticpodutil.ComponentResources("0"),
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Env: kubeadmutil.GetProxyEnvVars(),
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}, mounts.GetVolumes(kubeadmconstants.KubeControllerManager), nil),
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kubeadmconstants.KubeScheduler: staticpodutil.ComponentPod(v1.Container{
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@@ -86,7 +86,7 @@ func GetStaticPodSpecs(cfg *kubeadmapi.ClusterConfiguration, endpoint *kubeadmap
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VolumeMounts: staticpodutil.VolumeMountMapToSlice(mounts.GetVolumeMounts(kubeadmconstants.KubeScheduler)),
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LivenessProbe: staticpodutil.LivenessProbe(staticpodutil.GetSchedulerProbeAddress(cfg), "/healthz", kubeadmconstants.KubeSchedulerPort, v1.URISchemeHTTPS),
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StartupProbe: staticpodutil.StartupProbe(staticpodutil.GetSchedulerProbeAddress(cfg), "/healthz", kubeadmconstants.KubeSchedulerPort, v1.URISchemeHTTPS, cfg.APIServer.TimeoutForControlPlane),
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- Resources: staticpodutil.ComponentResources("100m"),
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+ Resources: staticpodutil.ComponentResources("0"),
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Env: kubeadmutil.GetProxyEnvVars(),
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}, mounts.GetVolumes(kubeadmconstants.KubeScheduler), nil),
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}
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--
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2.25.1
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