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Add a default route to the first interface only (#697)

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Adds a default route to the first interface only.
This commit is contained in:
Dmitry Kovba
2026-04-23 08:05:25 -07:00
committed by GitHub
parent bbea928c9e
commit 41ffd07f3e
2 changed files with 12 additions and 2 deletions
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Sources/Containerization/LinuxContainer.swift
+6 -1
View File
@@ -590,12 +590,16 @@ extension LinuxContainer {
// For every interface asked for:
// 1. Add the address requested
// 2. Online the adapter
// 3. If a gateway IP address is present, add the default route.
// 3. For the first interface, add the default route
var defaultRouteSet = false
for (index, i) in self.interfaces.enumerated() {
let name = "eth\(index)"
self.logger?.debug("setting up interface \(name) with address \(i.ipv4Address)")
try await agent.addressAdd(name: name, ipv4Address: i.ipv4Address)
try await agent.up(name: name, mtu: i.mtu)
if defaultRouteSet {
continue
}
if let ipv4Gateway = i.ipv4Gateway {
if !i.ipv4Address.contains(ipv4Gateway) {
self.logger?.debug("gateway \(ipv4Gateway) is outside subnet \(i.ipv4Address), adding a route first")
@@ -606,6 +610,7 @@ extension LinuxContainer {
self.logger?.debug("no gateway for \(name)")
try await agent.routeAddDefault(name: name, ipv4Gateway: nil)
}
defaultRouteSet = true
}
// Setup /etc/resolv.conf and /etc/hosts if asked for.
Sources/Containerization/LinuxPod.swift
+6 -1
View File
@@ -444,12 +444,16 @@ extension LinuxPod {
// For every interface asked for:
// 1. Add the address requested
// 2. Online the adapter
// 3. If a gateway IP address is present, add the default route.
// 3. For the first interface, add the default route
var defaultRouteSet = false
for (index, i) in self.interfaces.enumerated() {
let name = "eth\(index)"
self.logger?.debug("setting up interface \(name) with address \(i.ipv4Address)")
try await agent.addressAdd(name: name, ipv4Address: i.ipv4Address)
try await agent.up(name: name, mtu: i.mtu)
if defaultRouteSet {
continue
}
if let ipv4Gateway = i.ipv4Gateway {
if !i.ipv4Address.contains(ipv4Gateway) {
self.logger?.debug("gateway \(ipv4Gateway) is outside subnet \(i.ipv4Address), adding a route first")
@@ -460,6 +464,7 @@ extension LinuxPod {
self.logger?.debug("no gateway for \(name)")
try await agent.routeAddDefault(name: name, ipv4Gateway: nil)
}
defaultRouteSet = true
}
// Setup /etc/resolv.conf and /etc/hosts for each container.