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Allow connections to internal networks #25

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Allow connections to internal networks #25

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25 changes: 25 additions & 0 deletions client/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -186,4 +186,29 @@ func main() {
fmt.Printf("Failed to add iptables nat rule: %v\n", err)
os.Exit(ExitSetupFailed)
}

fmt.Println("Adding iptables filter rules for WireGuard interface")

// Add iptables filter rules to always accept traffic between
// a container and the Wireguard interface.
// Required to connect to `internal` Docker networks.
err = ipt.AppendUnique(
"filter", "DOCKER-USER",
"-o", interfaceName,
"-j", "ACCEPT",
)
if err != nil {
fmt.Printf("Failed to add iptables filter rule: %v\n", err)
os.Exit(ExitSetupFailed)
}

err = ipt.AppendUnique(
"filter", "DOCKER-USER",
"-i", interfaceName,
"-j", "ACCEPT",
)
if err != nil {
fmt.Printf("Failed to add iptables filter rule: %v\n", err)
os.Exit(ExitSetupFailed)
}
}