github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-09-16 06:32:32 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #58731 from yue9944882/feature/beginport-and-offset-expr-port-range

Browse Source 
Automatic merge from submit-queue (batch tested with PRs 60457, 60331, 54970, 58731, 60562). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

implement begin-port+offset port range parsing

**What this PR does / why we need it**:

Allocate specific numbers of port from a host by indicating a begin port and its offsets.
This can be used for kube-proxy configuration.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #58730

**Special notes for your reviewer**:

**Release note**:

```release-note
"beginPort+offset" format support for port range which affects kube-proxy only
```
This commit is contained in:
Kubernetes Submit Queue
2018-03-19 23:42:18 -07:00
committed by GitHub
parent 8684e581a1 68ad76bf53
commit 5be9578e34
3 changed files with 62 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
cmd/kube-proxy/app/server.go
View File

@@ -141,7 +141,7 @@ func (o *Options) AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&o.config.ResourceContainer, "resource-container", o.config.ResourceContainer, "Absolute name of the resource-only container to create and run the Kube-proxy in (Default: /kube-proxy).")
fs.MarkDeprecated("resource-container", "This feature will be removed in a later release.")
fs.StringVar(&o.config.ClientConnection.KubeConfigFile, "kubeconfig", o.config.ClientConnection.KubeConfigFile, "Path to kubeconfig file with authorization information (the master location is set by the master flag).")
fs.Var(componentconfig.PortRangeVar{Val: &o.config.PortRange}, "proxy-port-range", "Range of host ports (beginPort-endPort, inclusive) that may be consumed in order to proxy service traffic. If unspecified (0-0) then ports will be randomly chosen.")
fs.Var(componentconfig.PortRangeVar{Val: &o.config.PortRange}, "proxy-port-range", "Range of host ports (beginPort-endPort, single port or beginPort+offset, inclusive) that may be consumed in order to proxy service traffic. If (unspecified, 0, or 0-0) then ports will be randomly chosen.")
fs.StringVar(&o.config.HostnameOverride, "hostname-override", o.config.HostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.Var(&o.config.Mode, "proxy-mode", "Which proxy mode to use: 'userspace' (older) or 'iptables' (faster) or 'ipvs' (experimental). If blank, use the best-available proxy (currently iptables). If the iptables proxy is selected, regardless of how, but the system's kernel or iptables versions are insufficient, this always falls back to the userspace proxy.")
fs.Int32Var(o.config.IPTables.MasqueradeBit, "iptables-masquerade-bit", utilpointer.Int32PtrDerefOr(o.config.IPTables.MasqueradeBit, 14), "If using the pure iptables proxy, the bit of the fwmark space to mark packets requiring SNAT with. Must be within the range [0, 31].")