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[Launchpad Bug Tracker <1868232@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package cloud-init - 20.2-20-gd10ce3ec-
0ubuntu1

---------------
cloud-init (20.2-20-gd10ce3ec-0ubuntu1) groovy; urgency=medium

  * drop the following cherry-picks now included:
    + cpick-6600c642-ec2-render-network-on-all-NICs-and-add-secondary-IPs-as
    + cpick-986f37b0-cloudinit-move-to-pytest-for-running-tests-211
    + cpick-4fb6fd8a-net-ubuntu-focal-prioritize-netplan-over-eni-even-if
    + cpick-04771d75-cc_disk_setup-fix-RuntimeError-270
    + cpick-c5e949c0-distros-tests-test_init-add-tests-for
    + cpick-2566fdbe-net-introduce-is_ip_address-function-288
    + cpick-4f825b3e-cloudinit-refactor-util.is_ipv4-to-net.is_ipv4_address
    + cpick-c478d0bf-distros-replace-invalid-characters-in-mirror-URLs-with
    + cpick-1bbc4908-distros-drop-leading-trailing-hyphens-from-mirror-URL
    + cpick-09fea85f-net-ignore-renderer-key-in-netplan-config-306
    + fix-cpick-4fb6fd8a-net-ubuntu-focal-prioritize-netplan-over-eni.patch
    + cpick-9d7b35ce-cc_mounts-fix-incorrect-format-specifiers-316
    + cpick-0c5c7367-test_mounts-expand-happy-path-test-for-both-happy-paths
  * New upstream snapshot.
    - analyze/dump: refactor shared string into variable (#350)
    - doc: update boot.rst with correct timing of runcmd (#351)
    - HACKING.rst: change contact info to Rick Harding (#359) [lucasmoura]
    - HACKING.rst: guide people to add themselves to the CLA file (#349)
    - HACKING.rst: more unit testing documentation (#354)
    - .travis.yml: don't run lintian during integration test package builds
      (#352)
    - Add test to ensure docs examples are valid cloud-init configs (#355)
      [James Falcon] (LP: #1876414)
    - make suse and sles support 127.0.1.1 (#336) [chengcheng-chcheng]
    - Create tests to validate schema examples (#348)
      [lucasmoura] (LP: #1876412)
    - analyze/dump: add support for Amazon Linux 2 log lines (#346)
      (LP: #1876323)
    - bsd: upgrade support (#305) [Gonéri Le Bouder]
    - Add lucasmoura as contributor (#345) [lucasmoura]
    - Add "therealfalcon" as contributor (#344) [James Falcon]
    - Adapt the package building scripts to use Python 3 (#231)
      [Paride Legovini]
    - DataSourceEc2: use metadata's NIC ordering to determine route-metrics
      (#342) (LP: #1876312)
    - .travis.yml: introduce caching (#329)
    - cc_locale: introduce schema (#335)
    - doc/rtd/conf.py: bump copyright year to 2020 (#341)
    - yum_add_repo: Add Centos to the supported distro list (#340)
    - Release 20.2 (#337) (LP: #1875951)
    - doc/format: reference make-mime.py instead of an inline script (#334)
    - Add docs about  creating parent folders (#330) [Adrian Wilkins]
    - DataSourceNoCloud/OVF: drop claim to support FTP (#333) (LP: #1875470)
    - schema: ignore spurious pylint error (#332)
    - schema: add json schema for write_files module (#152)
    - BSD: find_devs_with_ refactoring (#298) [Gonéri Le Bouder]
    - nocloud: drop work around for Linux 2.6 (#324) [Gonéri Le Bouder]
    - cloudinit: drop dependencies on unittest2 and contextlib2 (#322)
    - distros: handle a potential mirror filtering error case (#328)
    - log: remove unnecessary import fallback logic (#327)
    - .travis.yml: don't run integration test on ubuntu/* branches (#321)
    - More unit test documentation (#314)
    - conftest: introduce disable_subp_usage autouse fixture (#304)
    - YAML align indent sizes for docs readability  (#323) [Tak Nishigori]
    - network_state: add missing space to log message (#325)
    - tests: add missing mocks for get_interfaces_by_mac (#326) (LP: #1873910)
    - test_mounts: expand happy path test for both happy paths (#319)
    - cc_mounts: fix incorrect format specifiers (#316) (LP: #1872836)
    - swap file "size" being used before checked if str (#315) [Eduardo Otubo]
    - HACKING.rst: add pytest version gotchas section (#311)
    - docs: Add steps to re-run cloud-id and cloud-init (#313) [Joshua Powers]
    - readme: OpenBSD is now supported (#309) [Gonéri Le Bouder]
    - net: ignore 'renderer' key in netplan config (#306) (LP: #1870421)
    - Add support for NFS/EFS mounts (#300) [Andrew Beresford] (LP: #1870370)
    - openbsd: set_passwd should not unlock user (#289) [Gonéri Le Bouder]
    - tools/.github-cla-signers: add beezly as CLA signer (#301)
    - util: remove unnecessary lru_cache import fallback (#299)
    - HACKING.rst: reorganise/update CLA signature info (#297)
    - distros: drop leading/trailing hyphens from mirror URL labels (#296)
    - HACKING.rst: add note about variable annotations (#295)
    - CiTestCase: stop using and remove sys_exit helper (#283)
    - distros: replace invalid characters in mirror URLs with hyphens (#291)
      (LP: #1868232)
    - rbxcloud: gracefully handle arping errors (#262) [Adam Dobrawy]
    - Fix cloud-init ignoring some misdeclared mimetypes in user-data.
      [Kurt Garloff]
    - net: ubuntu focal prioritize netplan over eni even if both present
      (#267) (LP: #1867029)
    - cloudinit: refactor util.is_ipv4 to net.is_ipv4_address (#292)
    - net/cmdline: replace type comments with annotations (#294)
    - HACKING.rst: add Type Annotations design section (#293)
    - net: introduce is_ip_address function (#288)
    - CiTestCase: remove now-unneeded parse_and_read helper method (#286)
    - .travis.yml: allow 30 minutes of inactivity in cloud tests (#287)
    - sources/tests/test_init: drop use of deprecated inspect.getargspec (#285)
    - setup.py: drop NIH check_output implementation (#282)
    - Identify SAP Converged Cloud as OpenStack [Silvio Knizek]
    - add Openbsd support (#147) [Gonéri Le Bouder]
    - HACKING.rst: add examples of the two test class types (#278)
    - VMWware: support to update guest info gc status if enabled (#261)
      [xiaofengw-vmware]
    - Add lp-to-git mapping for kgarloff (#279)
    - set_passwords: avoid chpasswd on BSD (#268) [Gonéri Le Bouder]
    - HACKING.rst: add Unit Testing design section (#277)
    - util: read_cc_from_cmdline handle urlencoded yaml content (#275)
    - distros/tests/test_init: add tests for _get_package_mirror_info (#272)
    - HACKING.rst: add links to new Code Review Process doc (#276)
    - freebsd: ensure package update works (#273) [Gonéri Le Bouder]
    - doc: introduce Code Review Process documentation (#160)
    - tools: use python3 (#274)
    - cc_disk_setup: fix RuntimeError (#270) (LP: #1868327)
    - cc_apt_configure/util: combine search_for_mirror implementations (#271)
    - bsd: boottime does not depend on the libc soname (#269)
      [Gonéri Le Bouder]
    - test_oracle,DataSourceOracle: sort imports (#266)
    - DataSourceOracle: update .network_config docstring (#257)
    - cloudinit/tests: remove unneeded with_logs configuration (#263)
    - .travis.yml: drop stale comment (#255)
    - .gitignore: add more common directories (#258)
    - ec2: render network on all NICs and add secondary IPs as static (#114)
      (LP: #1866930)
    - ec2 json validation: fix the reference to the 'merged_cfg' key (#256)
      [Paride Legovini]
    - releases.yaml: quote the Ubuntu version numbers (#254) [Paride Legovini]
    - cloudinit: remove six from packaging/tooling (#253)
    - util/netbsd: drop six usage (#252)
    - workflows: introduce stale pull request workflow (#125)
    - cc_resolv_conf: introduce tests and stabilise output across Python
      versions (#251)
    - fix minor issue with resolv_conf template (#144) [andreaf74]
    - doc: CloudInit also support NetBSD (#250) [Gonéri Le Bouder]
    - Add Netbsd support (#62) [Gonéri Le Bouder]
    - tox.ini: avoid substition syntax that causes a traceback on xenial (#245)
    - Add pub_key_ed25519 to cc_phone_home (#237) [Daniel Hensby]
    - Introduce and use of a list of GitHub usernames that have signed CLA
      (#244)
    - workflows/cla.yml: use correct username for CLA check (#243)
    - tox.ini: use xenial version of jsonpatch in CI (#242)
    - workflows: CLA validation altered to fail status on pull_request (#164)
    - tox.ini: bump pyflakes version to 2.1.1 (#239)
    - cloudinit: move to pytest for running tests (#211)

 -- Chad Smith <chad.smith@xxxxxxxxxxxxx>  Mon, 11 May 2020 20:17:06
-0600

** Changed in: cloud-init (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1868232

Title:
  underscores should be stripped from hostnames generated for apt config

Status in cloud-init:
  Fix Released
Status in cloud-init package in Ubuntu:
  Fix Released
Status in cloud-init source package in Focal:
  Fix Committed

Bug description:
  In a ticket filed in the Ubuntu RT instance we were made aware of an
  issue where if a cloud is configured with an “_” in the region name,
  cloud-init will generate an apt configuration that also includes that
  “_” in the name.

  So for example if the region name is zone_01, apt will be configured
  to use zone_01.clouds.archive.ubuntu.com.

  On Friday March 13th we deployed some new archive servers on 18.04
  using Apache 2.4.29-1ubuntu4.13. This version of apache has more
  strict protocol options than previous versions, per
  https://httpd.apache.org/docs/2.4/mod/core.html#httpprotocoloptions
  and the result is that a request to zone_01.clouds.archive.ubuntu.com
  returns a 400 Bad Request.

  Could cloud-init be updated to remove non-permitted characters
  including “_” per https://tools.ietf.org/html/rfc3986#section-3.2.2 ?

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