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Pass proxy environment variables to static pods

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To access outside world or cloud provider APIs it might be
required to use proxy.

Fixes: kubernetes/kubernetes#36573, kubernetes/kubeadm#5
This commit is contained in:
Alexander Kanevskiy 2016-11-25 18:56:38 +02:00
parent cdb8c79415
commit 1eeb3f155f
1 changed files with 21 additions and 0 deletions
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21
cmd/kubeadm/app/master/manifests.go
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@ -76,6 +76,7 @@ func WriteStaticPodManifests(cfg *kubeadmapi.MasterConfiguration) error {
VolumeMounts: volumeMounts,
LivenessProbe: componentProbe(8080, "/healthz"),
Resources: componentResources("250m"),
Env: getProxyEnvVars(),
}, volumes...),
kubeControllerManager: componentPod(api.Container{
Name: kubeControllerManager,
@ -84,6 +85,7 @@ func WriteStaticPodManifests(cfg *kubeadmapi.MasterConfiguration) error {
VolumeMounts: volumeMounts,
LivenessProbe: componentProbe(10252, "/healthz"),
Resources: componentResources("200m"),
Env: getProxyEnvVars(),
}, volumes...),
kubeScheduler: componentPod(api.Container{
Name: kubeScheduler,
@ -91,6 +93,7 @@ func WriteStaticPodManifests(cfg *kubeadmapi.MasterConfiguration) error {
Command: getSchedulerCommand(cfg),
LivenessProbe: componentProbe(10251, "/healthz"),
Resources: componentResources("100m"),
Env: getProxyEnvVars(),
}),
}
@ -359,3 +362,21 @@ func getProxyCommand(cfg *kubeadmapi.MasterConfiguration) (command []string) {
return
}
func getProxyEnvVars() []api.EnvVar {
envs := []api.EnvVar{}
for _, env := range os.Environ() {
pos := strings.Index(env, "=")
if pos == -1 {
// malformed environment variable, skip it.
continue
}
name := env[:pos]
value := env[pos+1:]
if strings.HasSuffix(strings.ToLower(name), "_proxy") && value != "" {
envVar := api.EnvVar{Name: name, Value: value}
envs = append(envs, envVar)
}
}
return envs
}