DevFW-CICD/ingress-nginx-helm
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Allow configuring nginx worker reload behaviour, to prevent multiple concurrent worker reloads which can lead to high resource usage and OOMKill (#10884)

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* feat: allow configuring nginx worker reload behaviour, to prevent multiple concurrent worker reloads

Signed-off-by: Rafael da Fonseca <rafael.fonseca@wildlifestudios.com>

* appease linter, remove unnecessary log line

Signed-off-by: Rafael da Fonseca <rafael.fonseca@wildlifestudios.com>

* Flip to using a positive behaviour flag instead of negative

Signed-off-by: Rafael da Fonseca <rafael.fonseca@wildlifestudios.com>

* Update helm-docs

Signed-off-by: Rafael da Fonseca <rafael.fonseca@wildlifestudios.com>

* Avoid calling GetBackendConfiguration() twice, use clearer name for helm chart option

Signed-off-by: Rafael da Fonseca <rafael.fonseca@wildlifestudios.com>

* Fix helm-docs ordering

Signed-off-by: Rafael da Fonseca <rafael.fonseca@wildlifestudios.com>

---------

Signed-off-by: Rafael da Fonseca <rafael.fonseca@wildlifestudios.com>
This commit is contained in:
Rafael da Fonseca 2024-05-14 22:45:25 +01:00 • committed by GitHub
parent 689b993a3c
commit 4e11074323
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7 changed files with 69 additions and 3 deletions
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12
internal/ingress/controller/template/configmap.go
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@ -69,6 +69,7 @@ const (
luaSharedDictsKey = "lua-shared-dicts"
plugins = "plugins"
debugConnections = "debug-connections"
workerSerialReloads = "enable-serial-reloads"
)
var (
@ -404,6 +405,17 @@ func ReadConfig(src map[string]string) config.Configuration {
delete(conf, workerProcesses)
}
if val, ok := conf[workerSerialReloads]; ok {
boolVal, err := strconv.ParseBool(val)
if err != nil {
to.WorkerSerialReloads = false
klog.Warningf("failed to parse enable-serial-reloads setting, valid values are true or false, found %s", val)
} else {
to.WorkerSerialReloads = boolVal
}
delete(conf, workerSerialReloads)
}
if val, ok := conf[plugins]; ok {
to.Plugins = splitAndTrimSpace(val, ",")
delete(conf, plugins)