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Set QPS and Burst when impersonating service account #422

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merged 1 commit into from
Feb 21, 2022
Merged

Set QPS and Burst when impersonating service account #422

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2 changes: 1 addition & 1 deletion api/go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ go 1.17
require (
github.com/fluxcd/pkg/apis/kustomize v0.3.1
github.com/fluxcd/pkg/apis/meta v0.10.2
github.com/fluxcd/pkg/runtime v0.12.3
github.com/fluxcd/pkg/runtime v0.12.5
k8s.io/apiextensions-apiserver v0.23.1
k8s.io/apimachinery v0.23.1
sigs.k8s.io/controller-runtime v0.11.0
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5 changes: 3 additions & 2 deletions api/go.sum
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Expand Up @@ -121,12 +121,13 @@ github.com/evanphx/json-patch v0.5.2/go.mod h1:ZWS5hhDbVDyob71nXKNL0+PWn6ToqBHMi
github.com/evanphx/json-patch v4.12.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/fluxcd/pkg/apis/acl v0.0.3/go.mod h1:XPts6lRJ9C9fIF9xVWofmQwftvhY25n1ps7W9xw0XLU=
github.com/fluxcd/pkg/apis/kustomize v0.3.1 h1:wmb5D9e1+Rr3/5O3235ERuj+h2VKUArVfYYk68QKP+w=
github.com/fluxcd/pkg/apis/kustomize v0.3.1/go.mod h1:k2HSRd68UwgNmOYBPOd6WbX6a2MH2X/Jeh7e3s3PFPc=
github.com/fluxcd/pkg/apis/meta v0.10.2 h1:pnDBBEvfs4HaKiVAYgz+e/AQ8dLvcgmVfSeBroZ/KKI=
github.com/fluxcd/pkg/apis/meta v0.10.2/go.mod h1:KQ2er9xa6koy7uoPMZjIjNudB5p4tXs+w0GO6fRcy7I=
github.com/fluxcd/pkg/runtime v0.12.3 h1:h21AZ3YG5MAP7DxFF9hfKrP+vFzys2L7CkUbPFjbP/0=
github.com/fluxcd/pkg/runtime v0.12.3/go.mod h1:imJ2xYy/d4PbSinX2IefmZk+iS2c1P5fY0js8mCE4SM=
github.com/fluxcd/pkg/runtime v0.12.5 h1:/8+0UBnSHbO9DVG9IFTjc37lwofsixGbs5WpHso8n5s=
github.com/fluxcd/pkg/runtime v0.12.5/go.mod h1:gspNvhAqodZgSmK1ZhMtvARBf/NGAlxmaZaIOHkJYsc=
github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
github.com/form3tech-oss/jwt-go v3.2.3+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
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2 changes: 1 addition & 1 deletion controllers/helmrelease_controller.go
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Original file line number Diff line number Diff line change
Expand Up @@ -495,7 +495,7 @@ func (r *HelmReleaseReconciler) getRESTClientGetter(ctx context.Context, hr v2.H
if len(kubeConfig) == 0 {
return nil, fmt.Errorf("KubeConfig secret '%s' does not contain a 'value' key", secretName)
}
return kube.NewMemoryRESTClientGetter(kubeConfig, hr.GetReleaseNamespace(), impersonateAccount), nil
return kube.NewMemoryRESTClientGetter(kubeConfig, hr.GetReleaseNamespace(), impersonateAccount, r.Config.QPS, r.Config.Burst), nil
}

if r.DefaultServiceAccount != "" || hr.Spec.ServiceAccountName != "" {
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2 changes: 1 addition & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ require (
github.com/fluxcd/pkg/apis/acl v0.0.3
github.com/fluxcd/pkg/apis/kustomize v0.3.1
github.com/fluxcd/pkg/apis/meta v0.10.2
github.com/fluxcd/pkg/runtime v0.12.4
github.com/fluxcd/pkg/runtime v0.12.5
github.com/fluxcd/source-controller/api v0.21.1
github.com/go-logr/logr v1.2.2
github.com/hashicorp/go-retryablehttp v0.6.8
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5 changes: 2 additions & 3 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -319,9 +319,8 @@ github.com/fluxcd/pkg/apis/kustomize v0.3.1 h1:wmb5D9e1+Rr3/5O3235ERuj+h2VKUArVf
github.com/fluxcd/pkg/apis/kustomize v0.3.1/go.mod h1:k2HSRd68UwgNmOYBPOd6WbX6a2MH2X/Jeh7e3s3PFPc=
github.com/fluxcd/pkg/apis/meta v0.10.2 h1:pnDBBEvfs4HaKiVAYgz+e/AQ8dLvcgmVfSeBroZ/KKI=
github.com/fluxcd/pkg/apis/meta v0.10.2/go.mod h1:KQ2er9xa6koy7uoPMZjIjNudB5p4tXs+w0GO6fRcy7I=
github.com/fluxcd/pkg/runtime v0.12.3/go.mod h1:imJ2xYy/d4PbSinX2IefmZk+iS2c1P5fY0js8mCE4SM=
github.com/fluxcd/pkg/runtime v0.12.4 h1:gA27RG/+adN2/7Qe03PB46Iwmye/MusPCpuS4zQ2fW0=
github.com/fluxcd/pkg/runtime v0.12.4/go.mod h1:gspNvhAqodZgSmK1ZhMtvARBf/NGAlxmaZaIOHkJYsc=
github.com/fluxcd/pkg/runtime v0.12.5 h1:/8+0UBnSHbO9DVG9IFTjc37lwofsixGbs5WpHso8n5s=
github.com/fluxcd/pkg/runtime v0.12.5/go.mod h1:gspNvhAqodZgSmK1ZhMtvARBf/NGAlxmaZaIOHkJYsc=
github.com/fluxcd/source-controller/api v0.21.1 h1:7X39YQHmB1vmIBrHxU+YAqxwtdC9Zh+tdtMKREW3xiQ=
github.com/fluxcd/source-controller/api v0.21.1/go.mod h1:Ab2qDmAUz6ZCp8UaHYLYzxyFrC1FQqEqjxiROb/Rdiw=
github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
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14 changes: 9 additions & 5 deletions internal/kube/client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,8 @@ func NewInClusterRESTClientGetter(cfg *rest.Config, namespace string) genericcli
flags.BearerToken = &cfg.BearerToken
flags.CAFile = &cfg.CAFile
flags.Namespace = &namespace
flags.WithDiscoveryBurst(cfg.Burst)
flags.WithDiscoveryQPS(cfg.QPS)
if sa := cfg.Impersonate.UserName; sa != "" {
flags.Impersonate = &sa
}
Expand All @@ -45,13 +47,17 @@ type MemoryRESTClientGetter struct {
kubeConfig []byte
namespace string
impersonateAccount string
qps float32
burst int
}

func NewMemoryRESTClientGetter(kubeConfig []byte, namespace string, impersonateAccount string) genericclioptions.RESTClientGetter {
func NewMemoryRESTClientGetter(kubeConfig []byte, namespace string, impersonateAccount string, qps float32, burst int) genericclioptions.RESTClientGetter {
return &MemoryRESTClientGetter{
kubeConfig: kubeConfig,
namespace: namespace,
impersonateAccount: impersonateAccount,
qps: qps,
burst: burst,
}
}

Expand All @@ -76,10 +82,8 @@ func (c *MemoryRESTClientGetter) ToDiscoveryClient() (discovery.CachedDiscoveryI
config.Impersonate = rest.ImpersonationConfig{UserName: c.impersonateAccount}
}

// The more groups you have, the more discovery requests you need to make.
// given 25 groups (our groups + a few custom resources) with one-ish version each, discovery needs to make 50 requests
// double it just so we don't end up here again for a while. This config is only used for discovery.
config.Burst = 100
config.QPS = c.qps
config.Burst = c.burst

discoveryClient, _ := discovery.NewDiscoveryClientForConfig(config)
return memory.NewMemCacheClient(discoveryClient), nil
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