Update git submodules

* Update sahara-image-elements from branch 'master'
  - archive-primary.cloudera.com -> archive.cloudera.com
    
    The former is no more active.
    
    Story: 2004936
    Task: 29329
    Change-Id: I260bf4cd3840ba2c44b85df87b89b717831b3b5c
    
  - Use template for lower-constraints
    
    Small cleanups:
    
    * Use openstack-lower-constraints-jobs template, remove individual
      jobs.
    * Sort list of templates
    
    Change-Id: If67b57ec2517eba2691c3cfcc6540813633ec25d
    Needed-By: https://review.openstack.org/623229
    
  - Merge "Update the min version of tox to 2.0"
  - Plain Ubuntu image are still based on Xenial
    
    Even if we are not really testing plain images much, let's make clear
    that we didn't test any hadoop stuff on bionic yet.
    
    Change-Id: I684a98338945d4449e37d9f652bddddf827838bf
    
  - firstboot: make rc-local start after cloud-init
    
    The change is required because the cloud-init user (centos, ubuntu,
    cloud-user, ...) is used in the firstboot code.
    All distributions where vanilla can be deployed are based
    on systemd.
    
    Story: 2004479
    Task: 28194
    
    Change-Id: I9d8a626b84d5d3c2a91348895cded5fd32ded52a
    
  - Update devel info: mailing list
    
    The new openstack-discuss mailing list is going to replace few
    mailing lists, including openstack-dev.
    
    Change-Id: I4e6abbd29667f84a2ea07089010d1da1266ca7b7
    
  - Update the min version of tox to 2.0
    
    The verification comands used by tox need at least 2.0 version. This
    patch aims to update tox version from 1.6 to 2.0 which should help with
    local running of constraints targets.
    
    Change-Id: I84a53543b50184b4e838cd6e597dfc80ec025588
    
  - Increment versioning with pbr instruction
    
    With moving away from required milestone releases, the version numbers
    calculated by PBR on the master branch will not work for those testing
    upgrades from the last stable release. More details can be found in the
    mailing list post here:
    
        http://lists.openstack.org/pipermail/openstack-dev/2018-October/135706.html
    
    This is an empty commit that will cause PBR to increment its calculated
    version to get around this.
    
    PBR will see the following which will cause it to increment the version:
    
    Sem-Ver: feature
    
    Please merge this patch as soon as possible to support those testing
    upgrades.
    
    Change-Id: I0ec6d6877f3518f267a977effb4e9d32a7300b89
    Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>
    
  - import zuul job settings from project-config
    
    This is a mechanically generated patch to complete step 1 of moving
    the zuul job settings out of project-config and into each project
    repository.
    
    Because there will be a separate patch on each branch, the branch
    specifiers for branch-specific jobs have been removed.
    
    Because this patch is generated by a script, there may be some
    cosmetic changes to the layout of the YAML file(s) as the contents are
    normalized.
    
    See the python3-first goal document for details:
    https://governance.openstack.org/tc/goals/stein/python3-first.html
    
    Change-Id: Ia20404b70cb5589b8ffacff1d7de39b14566987c
    Story: #2002586
    Task: #24332
    
  - Use the correct "or" operator to check the spark version
    
    It clearly slipped through the review...
    
    Story: 2003281
    Task: 24222
    Change-Id: I094045a665a4441029fa4930e278e94d0cff50f8
    
  - Updating Storm version list
    
    We are adding Storm 1.2.0 and 1.2.1 and removing 0.9.2
    
    Change-Id: I7e82464dda5d7d9f03e634eef814c63b661bb0c4
    
  - Merge "Adding Spark 2.3"
  - fix tox python3 overrides
    
    We want to default to running all tox environments under python 3, so
    set the basepython value in each environment.
    
    We do not want to specify a minor version number, because we do not
    want to have to update the file every time we upgrade python.
    
    We do not want to set the override once in testenv, because that
    breaks the more specific versions used in default environments like
    py35 and py36.
    
    Change-Id: I204e381701c91e59558eee57efac7ae7566acf76
    
  - Totally rewrite s3_hadoop
    
    Remedying of patchings, version conflicts, classpath issues, etc.
    
    ALSO: Switch the Hadoop libraries used on the Spark standalone plugin to
    Hadoop 2.7.3. The version was previously 2.6.5, to match Cloudera's
    so-called "Hadoop 2.6.0", but in fact this concordance is not at all
    necessary...
    
    Change-Id: Iafafb64fd60a1ae585375a68173c84fbb82c7e1f
    
  - Adding Spark 2.3
    
    Adding ability to create Spark 2.3
    
    Change-Id: I5fcfd050121b563960a48a3c8dbad9dda19b2a3e
    
  - Add support to build 3.0.1 image
    
    Change-Id: I1d90099b22ed9a0ede08df45059e6d7848c237b8
    
  - Remove CentOS6/RHEL6 support
    
    Deprecated in Pike, and removed from diskimage-builder for a while.
    
    Story: 2001996
    Task: 19626
    Change-Id: I9b4eab56fcbfcb2e97805fba805eafeeafa5d540
    
  - Merge "Add support to build 2.7.5 image"
  - Fix (again) the detection of scala version (now https)
    
    The www.scala-lang.org switched to https and the curl call did not
    account for this scenario, so it failed.
    Switch the address to https and as extra measure add also the -L
    argument, which forces curl to follow the redirects.
    
    Switch also the download URL to https.
    
    Story: 2001964
    Task: 15089
    Change-Id: I82d3dd0bd000284fb5404483bf3ee34a6fbb147b
    
  - Add support to build 2.7.5 image
    
    Change-Id: Ia16692632cbe6380d4021dd031eed09362873905
    
  - Zuul roles: allow to build only a specific image
    
    Useful to generate a single image on-the-fly
    and use it for scenario tests
    (or simply useful for a refactor of the rest of the
    build-images script).
    
    Change-Id: Ica615e9e7d93b38fd12189a9f97d26ca62d84a3e
    
  - add lower-constraints job
    
    Create a tox environment for running the unit tests against the lower
    bounds of the dependencies.
    
    Create a lower-constraints.txt to be used to enforce the lower bounds
    in those tests.
    
    Add openstack-tox-lower-constraints job to the zuul configuration.
    
    See http://lists.openstack.org/pipermail/openstack-dev/2018-March/128352.html
    for more details.
    
    Change-Id: I00b41e7e3bcd86677084243917a205c703097674
    Depends-On: https://review.openstack.org/555034
    Signed-off-by: Doug Hellmann <doug@doughellmann.com>
    
  - Migration to Storyboard
    
    Sahara projects migrated to storyboard.openstack.org.
    Replace the references to Launchpad, including the bugs now
    available as stories.
    Fix a reference to github.
    Change-Id: Iadba69efc1e310b6a19463d3398bf5c6549acd73
    
  - Merge "Add support to build 2.8.2 image"
  - Preload soci-mysql and soci on RHEL7 images
    
    Change-Id: I00d78b45dffd785e956058ca7d76fb9e32bfac60
    Closes-bug: #1754313
    
  - Add support to build 2.8.2 image
    
    Also tweak Hive a bit and refer to artifacts in a new (but not totally
    ideal) location.
    
    Co-Authored-By: Jeremy Freudberg <jeremyfreudberg@gmail.com>
    Change-Id: I3a25ee8c282849911089adf6c3593b1bb50fd067
    
  - Update the links to artifacts (removing sahara-files too)
    
    The canonical location for the artifacts going on is
    tarballs.openstack.org/sahara-extra/, so fix the link to use that
    and also use https.
    
    Moreover, since the last tarball required for building images
    is available on tarballs.openstack.org, remove the last references
    to sahara-files for artifacts and documentation
    (the new location was used already for a while in few places).
    there are still few references to sahara-files,
    but they are all about CentOS6 which is no more supported
    by diskimage-builder, and should be removed separately.
    
    Change-Id: Iab5a4d50a0abc6ab278837b6a9efd5e30f31c44a
    
  - Disables CA checking for Ambari on Centos/RHEL
    
    The default SSL certificate, which is generated when the Ambari server is
    installed, is invalid.
    
    We are disabling check for now.
    
    Change-Id: Ifcbc931e2ca23cb1fe221d509f57750e7e060aea
    Partial-bug: #1748507
    
  - Merge "Revise s3_hadoop"
  - Revise s3_hadoop
    
    * Handle Hadoop classpath better
    * Include proper support for Spark classpath
    * Formally limit element's use to Vanilla and Spark
    
    Change-Id: I65abd7e375dba11599a4ab943d24f878235cd71d
    Closes-Bug: #1727757
    Closes-Bug: #1728061
    
  - Merge "Adding fuse package to Ambari"
  - Merge "Zuul: Remove project name"
  - Zuul: Remove project name
    
    Zuul no longer requires the project-name for in-repo configuration.
    Omitting it makes forking or renaming projects easier.
    
    Change-Id: I2604716833cb0b1ac64facf3ae09236ad7d56fb9
    
  - Adding fuse package to Ambari
    
    In order for Ambari to work properly on Rhel we need to install fuse package
    on the image.
    
    Change-Id: I27b661b2da83776e382da962c89b9098599524d0
    Closes-bug: #1746712
    
  - Merge "Remove empty files"
  - Remove empty files
    
    classdist_noinst.stamp
    is empty file. We probably should delete it.
    
    Change-Id: I7c5df947ce16facef6d808008d3a4b0ffd5b76aa
    
  - Fix starting hive failure in Ubuntu xenial
    
    The mysql configuration file name and directory change in
    Ubuntu 16.04. my.cnf becomes an entry for mysql configuration.
    The new file locates here:
      "/etc/mysql/mysql.conf.d/mysqld.cnf"
    
    Change-Id: I8f70589cfc904a7d30081172b313ad8e30914935
    Closes-Bug: #1738124

sahara-image-elements

@@ -1 +1 @@
-Subproject commit 2a0fa0d58b0dbfe56f09355e0eb1f8caae43aa15
+Subproject commit 48491edb728266ffe260fba4347134526094531e