yahoo-eng-team team mailing list archive

[Jordan Evans <jordane@xxxxxxxxxx>]

Public bug reported:

Description of problem:

When using automated scripts for deployment, many wait for sshd to come
up, then ssh in. Since cloud-init and sshd are started in parallel, this
creates a race condition for cloud-init to add ssh keys before sshd
starts or the user can't login and the automated scripts can fail.

Specifically, this is happening to me using test-kitchen with the
kitchen-openstack plugin, which uses Fog. It calls wait_for and watches
for sshd to come up. It catches sshd before cloud-init finishes
installing keys, and fails to ssh.

Reproducing:

Attempt to ssh in before cloud-init finishes but after sshd is up and
running.

Steps to Reproduce:
1. Pull in Fedora Cloud image for OpenStack
2. Configure test kitchen to use Fedora
3. Run test-kitchen tests

Actual results:

ssh fails, which causes test-kitchen or other automated scripts to fail.

Expected results:

ssh should succeed.

This is specifically affecting me on Fedora-20, but can potentially
affect any distribution using systemd.

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

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https://bugs.launchpad.net/bugs/1333920

Title:
  sshd can start before cloud-init injects keys

Status in Init scripts for use on cloud images:
  New

Bug description:
  Description of problem:

  When using automated scripts for deployment, many wait for sshd to
  come up, then ssh in. Since cloud-init and sshd are started in
  parallel, this creates a race condition for cloud-init to add ssh keys
  before sshd starts or the user can't login and the automated scripts
  can fail.

  Specifically, this is happening to me using test-kitchen with the
  kitchen-openstack plugin, which uses Fog. It calls wait_for and
  watches for sshd to come up. It catches sshd before cloud-init
  finishes installing keys, and fails to ssh.

  Reproducing:

  Attempt to ssh in before cloud-init finishes but after sshd is up and
  running.

  Steps to Reproduce:
  1. Pull in Fedora Cloud image for OpenStack
  2. Configure test kitchen to use Fedora
  3. Run test-kitchen tests

  Actual results:

  ssh fails, which causes test-kitchen or other automated scripts to
  fail.

  Expected results:

  ssh should succeed.

  This is specifically affecting me on Fedora-20, but can potentially
  affect any distribution using systemd.

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