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cluster_constants.go
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/
cluster_constants.go
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package v1alpha1
import (
"os"
"strconv"
)
const (
// EnvVarFakeInClusterConfig is an environment variable to fake an in-cluster RESTConfig using
// the current kubectl context (for development purposes)
EnvVarFakeInClusterConfig = "ARGOCD_FAKE_IN_CLUSTER"
// EnvK8sClientQPS is the QPS value used for the kubernetes client (default: 50)
EnvK8sClientQPS = "ARGOCD_K8S_CLIENT_QPS"
// EnvK8sClientBurst is the burst value used for the kubernetes client (default: twice the client QPS)
EnvK8sClientBurst = "ARGOCD_K8S_CLIENT_BURST"
// EnvK8sClientMaxIdleConnections is the number of max idle connections in K8s REST client HTTP transport (default: 500)
EnvK8sClientMaxIdleConnections = "ARGOCD_K8S_CLIENT_MAX_IDLE_CONNECTIONS"
)
// Constants associated with the Cluster API
var (
// K8sClientConfigQPS controls the QPS to be used in K8s REST client configs
K8sClientConfigQPS float32 = 50
// K8sClientConfigBurst controls the burst to be used in K8s REST client configs
K8sClientConfigBurst int = 100
// K8sMaxIdleConnections controls the number of max idle connections in K8s REST client HTTP transport
K8sMaxIdleConnections = 500
)
func init() {
if envQPS := os.Getenv(EnvK8sClientQPS); envQPS != "" {
if qps, err := strconv.ParseFloat(envQPS, 32); err == nil {
K8sClientConfigQPS = float32(qps)
}
}
if envBurst := os.Getenv(EnvK8sClientBurst); envBurst != "" {
if burst, err := strconv.Atoi(envBurst); err == nil {
K8sClientConfigBurst = burst
}
} else {
K8sClientConfigBurst = 2 * int(K8sClientConfigQPS)
}
if envMaxConn := os.Getenv(EnvK8sClientMaxIdleConnections); envMaxConn != "" {
if maxConn, err := strconv.Atoi(envMaxConn); err == nil {
K8sMaxIdleConnections = maxConn
}
}
}