setup-network-environment

README

setup-network-environment

Usage

setup-network-environment

The network info will be written to /etc/network-environment by default.

LO_IPV4=127.0.0.1
ENO16777736_IPV4=192.168.12.10
DEFAULT_IPV4=192.168.12.10

You can write the network info to a different file using the -o flag.

setup-network-environment -o network-environment

systemd Integration

setup-network-environment.service

[Unit]
Requires=network-online.target
After=network-online.target

[Service]
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/sne/setup-network-environment
ExecStartPre=/usr/bin/chmod +x /opt/bin/setup-network-environment
ExecStart=/opt/bin/setup-network-environment

Depending on the setup-network-environment.service

[Unit]
Requires=setup-network-environment.service
After=setup-network-environment.service

[Service]
EnvironmentFile=/etc/network-environment
ExecStart=/opt/bin/kubelet --hostname_override=${DEFAULT_IPV4}

The above unit file will override the kubelet hostname with the IP address of the interface that provides the default gateway. You can also reference a specific interface:

ExecStart=/opt/bin/kubelet --hostname_override=${ENO16777736_IPV4}

Building

mkdir -p "${GOPATH}/src/github.com/kelseyhightower"
cd "${GOPATH}/src/github.com/kelseyhightower"
git clone https://github.com/kelseyhightower/setup-network-environment.git
cd setup-network-environment
godep go build .

Slightly smaller binary.

CGO_ENABLED=0 GOOS=linux godep go build -a -tags netgo -ldflags '-w' .

Documentation

Overview

Copyright (c) 2014 Kelsey Hightower. All rights reserved. Use of this source code is governed by the Apache License, Version 2.0 that can be found in the LICENSE file.