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extend docs/lxd_container_home_server_networking_for_dummies.md
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@ -256,6 +256,47 @@ your home network, and a second interface *eth1* connected to a non-natted subne
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a static ip on which it will be able to talk directly to the other containers and the host
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machine.
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### exposed profile with a regular linux br0 interface bridge
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You can configure an Ubuntu server with a br0 interface
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```conf
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# /etc/network/interfaces
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auto lo
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iface lo inet loopback
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# br0 bridge in dhcp configuration with ethernet
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# port ens2 added to it.
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auto br0
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iface br0 inet dhcp
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bridge_ports ens2
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bridge_stp off
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bridge_maxwait 0
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```
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and a cooresponding profile....
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```yaml
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config: {}
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description: exposed LXD profile
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devices:
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eth0:
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nictype: bridged
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parent: br0
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type: nic
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eth1:
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nictype: bridged
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parent: lxdbr1
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type: nic
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root:
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path: /
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pool: default
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type: disk
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name: exposed
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used_by: []
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```
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## Assign Containers to Profiles and configure them to connect correctly.
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There are a lot of different ways that a Linux instance can solicit network services. So for
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@ -306,6 +347,44 @@ iface eth1 inet static
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network 10.151.18.0
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```
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### ubuntu:16.04 using only dhcp for two nics
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So the example here is tested with eth0 and eth1 connected to
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br0 and lxdbr1 respectively. You need post-up hooks for both eth0 and
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eth1 inside the containers, in order to specify the default route, eth0 gets it's configuration
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dynamically by default from cloud-init. So disable cloud-init by
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creating the following file on the container.
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```conf
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# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
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network: {config: disabled}
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```
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Then, on the container describe the interfaces.
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```conf
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# /etc/network/interfaces
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auto lo
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iface lo inet loopback
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auto eth1
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iface eth1 inet dhcp
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post-up route del default dev eth1
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auto eth0
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iface eth0 inet dhcp
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post-up route add default dev eth0 via 192.168.1.1
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```
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and delete /etc/network/interfaces.d/50-cloud-init.cfg
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```bash
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rm /etc/network/interfaces.d/50-cloud-init.cfg
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```
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The advantage to this scenario is now you can make copies of the container
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without having to update the network descriptions, because both interfaces
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will solicit addresses via dhcp.
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### debian stretch
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The configuration for a debian stretch container is the same, except the the file
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@ -261,5 +261,5 @@
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<!--
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MkDocs version : 0.17.2
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Build Date UTC : 2018-02-18 11:34:12
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Build Date UTC : 2018-02-20 22:19:04
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-->
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@ -407,6 +407,41 @@ to a macvlan, addressable from your lan, just like any other arbitrary computer
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your home network, and a second interface <em>eth1</em> connected to a non-natted subnet, with
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a static ip on which it will be able to talk directly to the other containers and the host
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machine.</p>
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<h3 id="exposed-profile-with-a-regular-linux-br0-interface-bridge">exposed profile with a regular linux br0 interface bridge</h3>
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<p>You can configure an Ubuntu server with a br0 interface</p>
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<pre><code class="conf"># /etc/network/interfaces
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auto lo
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iface lo inet loopback
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# br0 bridge in dhcp configuration with ethernet
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# port ens2 added to it.
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auto br0
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iface br0 inet dhcp
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bridge_ports ens2
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bridge_stp off
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bridge_maxwait 0
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</code></pre>
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<p>and a cooresponding profile....</p>
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<pre><code class="yaml">config: {}
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description: exposed LXD profile
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devices:
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eth0:
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nictype: bridged
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parent: br0
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type: nic
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eth1:
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nictype: bridged
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parent: lxdbr1
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type: nic
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root:
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path: /
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pool: default
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type: disk
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name: exposed
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used_by: []
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</code></pre>
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<h2 id="assign-containers-to-profiles-and-configure-them-to-connect-correctly">Assign Containers to Profiles and configure them to connect correctly.</h2>
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<p>There are a lot of different ways that a Linux instance can solicit network services. So for
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now I will just describe a method that will work here for a lxc container from ubuntu:16.04, as
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@ -447,6 +482,37 @@ iface eth1 inet static
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network 10.151.18.0
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</code></pre>
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<h3 id="ubuntu1604-using-only-dhcp-for-two-nics">ubuntu:16.04 using only dhcp for two nics</h3>
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<p>So the example here is tested with eth0 and eth1 connected to
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br0 and lxdbr1 respectively. You need post-up hooks for both eth0 and
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eth1 inside the containers, in order to specify the default route, eth0 gets it's configuration
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dynamically by default from cloud-init. So disable cloud-init by
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creating the following file on the container.</p>
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<pre><code class="conf"># /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
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network: {config: disabled}
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</code></pre>
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<p>Then, on the container describe the interfaces.</p>
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<pre><code class="conf"># /etc/network/interfaces
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auto lo
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iface lo inet loopback
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auto eth1
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iface eth1 inet dhcp
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post-up route del default dev eth1
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auto eth0
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iface eth0 inet dhcp
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post-up route add default dev eth0 via 192.168.1.1
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</code></pre>
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<p>and delete /etc/network/interfaces.d/50-cloud-init.cfg</p>
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<pre><code class="bash">rm /etc/network/interfaces.d/50-cloud-init.cfg
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</code></pre>
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<p>The advantage to this scenario is now you can make copies of the container
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without having to update the network descriptions, because both interfaces
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will solicit addresses via dhcp.</p>
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<h3 id="debian-stretch">debian stretch</h3>
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<p>The configuration for a debian stretch container is the same, except the the file
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<code>/etc/network/interfaces</code> will also describe eth0, but you only have to add the
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File diff suppressed because one or more lines are too long
@ -4,7 +4,7 @@
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<url>
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<loc>/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -12,7 +12,7 @@
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<url>
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<loc>/apt_pinning_artful_aardvark_packages_in_xenial_xerus/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -20,7 +20,7 @@
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<url>
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<loc>/lxd_container_home_server_networking_for_dummies/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -28,7 +28,7 @@
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<url>
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<loc>/lxd_container_foo/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -36,7 +36,7 @@
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<url>
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<loc>/how_to_reassign_a_static_ip_address_with_dnsmasq/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -44,7 +44,7 @@
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<url>
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<loc>/serve_and_share_apps_from_your_phone_with_fdroid/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -52,7 +52,7 @@
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<url>
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<loc>/nspawn/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -60,7 +60,7 @@
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<url>
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<loc>/gentoo_lxd_container/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -68,7 +68,7 @@
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<url>
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<loc>/mastodon_on_arch/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -76,7 +76,7 @@
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<url>
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<loc>/debian_nspawn_container_on_arch_for_testing_apache_configurations/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -84,7 +84,7 @@
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<url>
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<loc>/dynamic_cacheing_nginx_reverse_proxy_for_pacman/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -92,7 +92,7 @@
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<url>
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<loc>/freebsd_jails_on_freenas/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -100,7 +100,7 @@
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<url>
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<loc>/arch_redis_nspawn/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -108,7 +108,7 @@
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<url>
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<loc>/arch_postgresql_nspawn/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -116,7 +116,7 @@
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<url>
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<loc>/misc_tips_troubleshooting/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -124,7 +124,7 @@
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<url>
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<loc>/self_signed_certs/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -132,7 +132,7 @@
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<url>
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<loc>/selfoss_on_centos7/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -140,7 +140,7 @@
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<url>
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<loc>/stupid_package_manager_tricks/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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@ -148,7 +148,7 @@
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<url>
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<loc>/stupid_kvm_tricks/</loc>
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<lastmod>2018-02-18</lastmod>
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<lastmod>2018-02-20</lastmod>
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<changefreq>daily</changefreq>
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</url>
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