element of dhcp-all-interface does not support IPv6

[zhengyong]

dhcp-all-interface can only get one IPv4 address, does not support to get one IPv6 address.

[Harald Jensås (harald-jensas)]

@zhengyong - did you ever get around to write any patches for this? (If not, I'll pick this upp and fix this.)

[zhengyong (zhengy23)]

hello harald-jensas, I have not write any patches, you pick this up

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/692110

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/692110
Committed: https://git.openstack.org/cgit/openstack/diskimage-builder/commit/?id=f94508d537432817619932074a5f98ea08d93055
Submitter: Zuul
Branch: master

commit f94508d537432817619932074a5f98ea08d93055
Author: Harald Jensås <email address hidden>
Date: Wed Oct 30 12:27:30 2019 +0100

    Add IPv6 support in dhcp-all-interfaces

    When the rdisc6 utility is available probe for router
    advertisement. configure eni and rhel-netscripts interfaces
    to do IPv6 address configuration according to the flags
    in the RA recived from the router.

    The systemd service file timeout is DIB_DHCP_TIMEOUT * 2,
    so that DHCPv4 can timout, and dhcpv6 run before the service
    times out.

    Retries are commented in dhclient.conf, without it we end up
    trying DIB_DHCP_TIMEOUT * 60 before the client move on to
    IPv6.

    WHEN:
      Stateful address conf. : No
      Stateful other conf. : No
    THEN:
      Do not run dhclient at all, autoconfiguration via
      SLAAC only.

    WHEN:
      Stateful address conf. : No
      Stateful other conf. : Yes
    THEN:
      Run "dhclient -6 -S", The ``-S`` option makes the
      dhcp client not request an address, only other
      options such as DNS servers and NTP servers from
      DHCPv6 server.

    WHEN:
      Stateful address conf. : Yes
      Stateful other conf. : Yes
    THEN:
      The dhcp client should request an address _and_ other
      options such as DNS servers and NTP servers from
      DHCPv6 server.

    NOTE: No IPv6 support added for suse-netscripts

    Closes-Bug: 1754219
    Change-Id: Icdc79875c33f894ab7eaec8afdfb33a731efff99

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.opendev.org/696532

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/696532
Committed: https://git.openstack.org/cgit/openstack/diskimage-builder/commit/?id=7948fee7e25707904f81ccc8854a1f98265c8f0b
Submitter: Zuul
Branch: master

commit 7948fee7e25707904f81ccc8854a1f98265c8f0b
Author: Harald Jensås <email address hidden>
Date: Thu Nov 28 13:20:16 2019 +0100

    Install ndisc6 package in element script

    The ndisc6 package is not yet available in EPEL 8.
    See: https://bugzilla.redhat.com/show_bug.cgi?id=1779134

    Until the package is available set the pkg-map to "" for
    the ndisc6 package when distro is redhat and install the
    package using || true in the element script instead so
    that CentOS 8 build's do not fail because of the missing
    package.

    Once the package is in EPEL 8 this change can be reverted.

    Related-Bug: #1754219
    Change-Id: Icd4bad8852ce5ba40fb0e7b0d335191efbe88c67