yahoo-eng-team team mailing list archive

[Dan Streetman <ddstreet@xxxxxxxxxxxxx>]

Public bug reported:

cloud-init on azure generates netplan yaml that includes dhcp4 with the
dhcp4-overrides of route-metric, i.e.:

            dhcp4: true
            dhcp4-overrides:
                route-metric: 100

however netplan requires the same route-metric for dhcp4 and dhcp6 as
networkd doesn't allow specifying separate metrics for 4 vs 6, so when
azure is setup with dual-stack the netplan yaml is not valid for
netplan, i.e.:

            dhcp4: true
            dhcp4-overrides:
                route-metric: 100
            dhcp6: true

which causes netplan to exit with error:

Stderr: ERROR: eth0: networkd requires that route-metric has the same
value in both dhcp4_overrides and dhcp6_overrides

** Affects: cloud-init
     Importance: Undecided
         Status: New


** Tags: sts

** Tags added: sts

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https://bugs.launchpad.net/bugs/1850308

Title:
  cloud-init on azure with dual stack needs to add route-metric for
  dhcp6 also

Status in cloud-init:
  New

Bug description:
  cloud-init on azure generates netplan yaml that includes dhcp4 with
  the dhcp4-overrides of route-metric, i.e.:

              dhcp4: true
              dhcp4-overrides:
                  route-metric: 100

  however netplan requires the same route-metric for dhcp4 and dhcp6 as
  networkd doesn't allow specifying separate metrics for 4 vs 6, so when
  azure is setup with dual-stack the netplan yaml is not valid for
  netplan, i.e.:

              dhcp4: true
              dhcp4-overrides:
                  route-metric: 100
              dhcp6: true

  which causes netplan to exit with error:

  Stderr: ERROR: eth0: networkd requires that route-metric has the same
  value in both dhcp4_overrides and dhcp6_overrides

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