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List:       lxc-devel
Subject:    [lxc-devel] [lxd/master] lxd/init: Allow using an existing bridge
From:       stgraber on Github <lxc-bot () linuxcontainers ! org>
Date:       2018-03-29 19:36:47
Message-ID: 20180329193647.D1F94523D0 () mailman01 ! srv ! dcmtl ! stgraber ! net
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The following pull request was submitted through Github.
It can be accessed and reviewed at: https://github.com/lxc/lxd/pull/4376

This e-mail was sent by the LXC bot, direct replies will not reach the author
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=== Description (from pull-request) ===
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

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From 19f2f6da83eed78c6fac180b6049168487901d26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stéphane Graber?= <stgraber@ubuntu.com>
Date: Thu, 29 Mar 2018 15:33:42 -0400
Subject: [PATCH] lxd/init: Allow using an existing bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
---
 lxd/main_init_interactive.go | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/lxd/main_init_interactive.go b/lxd/main_init_interactive.go
index a616e31ef..8094fad65 100644
--- a/lxd/main_init_interactive.go
+++ b/lxd/main_init_interactive.go
@@ -241,6 +241,32 @@ func (c *cmdInit) askClustering(config *initData, d \
lxd.ContainerServer) error {

 func (c *cmdInit) askNetworking(config *initData, d lxd.ContainerServer) error {
 	if !cli.AskBool("Would you like to create a new network bridge (yes/no) \
[default=yes]? ", "yes") { +		if cli.AskBool("Would you like to configure LXD to use \
an existing bridge or host interface (yes/no) [default=no]? ", "no") { +			for {
+				name := cli.AskString("Name of the existing bridge or host interface: ", "", \
nil) +
+				if !shared.PathExists(fmt.Sprintf("/sys/class/net/%s", name)) {
+					fmt.Println("The requested interface doesn't exist. Please choose another \
one.") +					continue
+				}
+
+				nicType := "macvlan"
+				if shared.PathExists(fmt.Sprintf("/sys/class/net/%s/bridge", name)) {
+					nicType = "bridged"
+				}
+
+				// Add to the default profile
+				config.Profiles[0].Devices["eth0"] = map[string]string{
+					"type":    "nic",
+					"nictype": nicType,
+					"name":    "eth0",
+					"parent":  name,
+				}
+
+				break
+			}
+		}
+
 		return nil
 	}


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