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[Scott Moser <smoser@xxxxxxxxxx>]

** Description changed:

  maas images utilize cloud-initramfs-dyn-netconf . The way this works is basically:
   * /etc/network/interfaces in image is a link to ../../run/network/dynamic-interfaces
   * kernel command line 'ip=' convince the initramfs to bring up networking using 'ipconfig'
     example: ip=::::maas-enlist:BOOTIF
   * ipconfig writes files in /run/net-*.conf for each interface it configures.
   * cloud-initramfs-dyn-netconf module writes /run/network/dyanmic-interfaces based on /run/net-*.conf files that 'ipconfig' creates.
  
  end result is that after the move to real root, /etc/network/interfaces
  should be a symlink to /run/ that ends up having something like this:
  
   | ## This file is generated by cloud-initramfs-dyn-netconf
   | auto lo
   | iface lo inet loopback
   | manual eth0
   | iface eth0 inet dhcp
   | dns-nameservers 192.168.64.3
   | dns-search maas
  
  resolvconf seems not to be working as well as it should be.  In vivid
  (now using systemd), I have only the resolvconf header in the file.
  
   in all other supported ubuntu releases, doing the above results in functional resolv.conf via resolv.conf. Seen here from trusty:
   | # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
   | #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
   | nameserver 192.168.64.3
  
  Related Bugs:
   *  bug 1432821: something deleting /run/network after during boot
+  * bug 1463461: resolvconf not updated by /lib/systemd/system/ifup@.service.d/open-iscsi.conf 
+  * bug 1501033: transient error results in /etc/resolv.conf not populated in iscsi root 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: resolvconf 1.69ubuntu1.1
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  Date: Mon Mar 16 20:42:24 2015
  PackageArchitecture: all
  ProcEnviron:
   TERM=vt102
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: resolvconf
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1432829

Title:
  resolv.conf not updated correctly for interfaces configured in
  initramfs

Status in open-iscsi package in Ubuntu:
  Fix Released
Status in systemd package in Ubuntu:
  Invalid

Bug description:
  maas images utilize cloud-initramfs-dyn-netconf . The way this works is basically:
   * /etc/network/interfaces in image is a link to ../../run/network/dynamic-interfaces
   * kernel command line 'ip=' convince the initramfs to bring up networking using 'ipconfig'
     example: ip=::::maas-enlist:BOOTIF
   * ipconfig writes files in /run/net-*.conf for each interface it configures.
   * cloud-initramfs-dyn-netconf module writes /run/network/dyanmic-interfaces based on /run/net-*.conf files that 'ipconfig' creates.

  end result is that after the move to real root,
  /etc/network/interfaces should be a symlink to /run/ that ends up
  having something like this:

   | ## This file is generated by cloud-initramfs-dyn-netconf
   | auto lo
   | iface lo inet loopback
   | manual eth0
   | iface eth0 inet dhcp
   | dns-nameservers 192.168.64.3
   | dns-search maas

  resolvconf seems not to be working as well as it should be.  In vivid
  (now using systemd), I have only the resolvconf header in the file.

   in all other supported ubuntu releases, doing the above results in functional resolv.conf via resolv.conf. Seen here from trusty:
   | # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
   | #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
   | nameserver 192.168.64.3

  Related Bugs:
   *  bug 1432821: something deleting /run/network after during boot
   * bug 1463461: resolvconf not updated by /lib/systemd/system/ifup@.service.d/open-iscsi.conf 
   * bug 1501033: transient error results in /etc/resolv.conf not populated in iscsi root 

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: resolvconf 1.69ubuntu1.1
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  Date: Mon Mar 16 20:42:24 2015
  PackageArchitecture: all
  ProcEnviron:
   TERM=vt102
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: resolvconf
  UpgradeStatus: No upgrade log present (probably fresh install)

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