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Add support for binaries to run as Windows services

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This patch adds support for kubernetes to integrate
with Windows SCM.

As a first step both `kubelet` and `kube-proxy` can be registered as a service.

To create the service:
PS > sc.exe create <component_name> binPath= "<path_to_binary> --service <other_args>"
CMD > sc create <component_name> binPath= "<path_to_binary> --service <other_args>"

Please note that if the arguments contain spaces, it must be escaped.
Example:
PS > sc.exe create kubelet binPath= "C:\kubelet.exe --service --hostname-override 'minion' <other_args>"
CMD > sc create kubelet binPath= "C:\kubelet.exe --service --hostname-override 'minion' <other_args>"

Example to start the service:
PS > Start-Service kubelet; Start-Service kube-proxy
CMD > net start kubelet && net start kube-proxy

Example to stop the service:
PS > Stop-Service kubelet (-Force); Stop-Service kube-proxy (-Force)
CMD > net stop kubelet && net stop kube-proxy

Example to query the service:
PS > Get-Service kubelet; Get-Service kube-proxy;
CMD > sc.exe queryex kubelet && sc qc kubelet && sc.exe queryex kube-proxy && sc.exe qc kube-proxy

Signed-off-by: Alin Balutoiu <abalutoiu@cloudbasesolutions.com>
Signed-off-by: Alin Gabriel Serdean <aserdean@ovn.org>
Co-authored-by: Alin Gabriel Serdean <aserdean@ovn.org>
This commit is contained in:
Alin-Gheorghe Balutoiu
2018-02-21 16:48:38 +02:00
parent a81787052c
commit 4ea363d98e
15 changed files with 363 additions and 0 deletions
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8
cmd/kube-proxy/app/server.go
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@@ -100,6 +100,9 @@ type Options struct {
CleanupAndExit bool
// CleanupIPVS, when true, makes the proxy server clean up ipvs rules before running.
CleanupIPVS bool
// WindowsService should be set to true if kube-proxy is running as a service on Windows.
// Its corresponding flag only gets registered in Windows builds
WindowsService bool
// config is the proxy server's configuration object.
config *kubeproxyconfig.KubeProxyConfiguration
@@ -119,6 +122,7 @@ type Options struct {
// AddFlags adds flags to fs and binds them to options.
func (o *Options) AddFlags(fs *pflag.FlagSet) {
o.addOSFlags(fs)
fs.StringVar(&o.ConfigFile, "config", o.ConfigFile, "The path to the configuration file.")
fs.StringVar(&o.WriteConfigTo, "write-config-to", o.WriteConfigTo, "If set, write the default configuration values to this file and exit.")
fs.BoolVar(&o.CleanupAndExit, "cleanup-iptables", o.CleanupAndExit, "If true cleanup iptables and ipvs rules and exit.")
@@ -344,6 +348,10 @@ with the apiserver API to configure the proxy.`,
verflag.PrintAndExitIfRequested()
utilflag.PrintFlags(cmd.Flags())
if err := initForOS(opts.WindowsService); err != nil {
glog.Fatalf("failed OS init: %v", err)
}
cmdutil.CheckErr(opts.Complete())
cmdutil.CheckErr(opts.Validate(args))
cmdutil.CheckErr(opts.Run())