[Bug 1759307] Re: missing dependency on isc-dhcp-client (dhclient)

[Scott Moser]

"Packages that care about networking support in the initramfs should instead
take care themselves to depend on isc-dhcp-client."

Reworded:
  Packages that care about <function> should take care to depend on <package> themselves.

Generally that's not how things work, and results in maintenance
elsewhere.  Now *those* packages had to be updated, and later on have to
be fixed if initramfs-tools ever updated again should initramfs-tools
ever update its implementation.

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https://bugs.launchpad.net/bugs/1759307

Title:
  missing dependency on isc-dhcp-client (dhclient)

Status in cloud-init package in Ubuntu:
  Fix Released
Status in initramfs-tools package in Ubuntu:
  Invalid

Bug description:
  cloud-init uses isc-dhcp-client (through 'dhclient') to obtain temporary
  dhcp ip addresses.  It currently does not identify a dependency on it.

  initramfs-tools uses dhclient in scripts/functions to obtain ipv6 addresses
  (see bug 1621507 for more info).

  This bug was prompted by MP to remove isc-dhcp-client from the ubuntu-minimal seed
   https://code.launchpad.net/~vorlon/ubuntu-seeds/platform.bionic-dhcp-switch/+merge/342013

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