MAR-146: Added separate parameter for Pyhton 3 virtual environment used for upgrade checks:

- Release notes updated to mention the breaking change.
- Updated role reference documentation to cover the new parameter.
- Updated default values for the dedicated Python virtual
environments.
- Update role common to deploy separate requirements for the two
environments.
- Include wheel package in the requirements.

Noticket: Fix the invocation of GnuPG to use the --no-tty option:

- At least in some cases GnuPG would otherwise fail to run.

Noticket: Fix the invocation of GnuPG to use the --no-tty option:

- At least in some cases GnuPG would otherwise fail to run.

MAR-141: Fix handling of pipreqcheck virtualenv package installation:

- Deploy all requirements through requirements file, even if using
pip. Improves reproducability of installed packages and solves some
double-versioning issues for packages like pip etc.
- Updated test for validating installed packages.

MAR-140: Updated developement requirements:

- Fixed to more specific versions due to older release needs.

MAR-139: Updated documentation and release notes:

- Document the new xmpp_prosody_package parameter.
- Add the breaking change informaiton in release notes (although most
likely nothing will be really broken).

MAR-139: Switch to using Prosody stable branch nightlies:

- Introduced additional parameter for specifying name of Prosody
package to install.
- Updated tests.

MAR-138: Updated documentation and release notes:

- Document the new xmpp_prosody_package parameter.
- Add the breaking change informaiton in release notes (although most
likely nothing will be really broken).

MAR-138: Switch to using Prosody stable branch nightlies:

- Introduced additional parameter for specifying name of Prosody
package to install.
- Updated tests.

MAR-134: Updated requirements:

- Remove workaround for broken pytest.
- Updated all requirements.

MAR-134: Fix Ansible warning about use of apt and with_items:

- The apt module can accept list of names already, and with_items is
considered to be deprecated in this regard (otherwise it would
end-up running one apt command per item).
- Changed multiple roles where apt was used together along with_items.

MAR-134: Make sure the Python setuptools are available for virtualenv use:

- Must be present for pipreqcheck virtual environments to get setup
correctly.
- Should be a good idea to include it in the default web server config
too.

MAR-135: Updated documentation related to new environment variable for running handlers explicitly:

- Updated the usage instructions.
- Updated the release notes to include mention of breaking change.

MAR-135: Switch to using run_handlers instead of handlers as variable:

- Updated all roles to now depend on run_handlers being set to True in
order to force execution of handlers.

MAR-132: Updated test site instructions:

- Mention that either Jessie or Stretch can be used for installation.
- Updated command for getting the SSH key fingerprints to use the dig
tool.

MAR-132: Updated usage instructions for Debian Stretch:

- Switch to Debian Stretch for showing role usage.
- Updated TBG deployment to use the latest version.
- Fixed a bunch of sample task definitions to use full expanded (YAML)
syntax.
- Updated commands used for backup client/server (invocation of GnuPG).

MAR-132: Fix the handler that recreates the GnuPG keyring for duplicity:

- In Debian Stretch it can happen that a file (the GnuPG Unix socket)
dissappears in middle of removing the directory, causing
failures. Switch to using the "rm" command instead.

MAR-132: Pin packages as part of wsgi_website role test to ensure reproducability:

- Provide explicit list of packages being deployed. This should ensure
we can always reproduce the tests without being affected by new
releases of packages.
- Updated expected requirements in test for the jedi version.

MAR-132: Fix PHP timezone test for Debian Stretch in web_server role:

- Read the timezone from server instead of depending on fixed value.

MAR-132: Update documentation for backup_server role:

- Mention that DSA key is required only on Debian Jessie.
- Remove unused parameter from role defaults.

MAR-132: Added support for Debian 9 (Stretch) to backup_server role:

- Deploy slightly different sshd_config file for Stretch (DSA key
unused).
- Updated Molecule tests to cover testing on Debian 9.
- Updated role reference documentation.

MAR-132: Added support for Debian 9 (Stretch) to database role:

- Updated Molecule test configuration to include Debian 9 Stretch.
- Updated documentation.

MAR-132: Added support for Debian 9 (Stretch) to database_server role:

- Updated Molecule test configuration to include Debian 9 Stretch in
test matrix.
- Updated tests related to UTF-8 configuration (differences between
Debian 8 and 9).
- Deploy UTF-8 configuration in alternate locations depending on what
distro is being used.
- Force set-up of root password on Debian Stretch (default is to use
the unix_socket authentication).

MAR-132: Workarounds for wsgi_website Python virtual environment in Debian Stretch:

- Manually install setuptools in Python virtual environment on Debian
Stretch, otherwise the pkg-resources==0.0.0 package will mess with
pip freeze etc.
- Add back installation of futures package, even on Python 3 (since it
does not cause any harm).
- A small cleanup of how requirements are treated will be done in
separate ticket.

MAR-132: Added support for Debian 9 (Stretch) to wsgi_website role:

- Set the shell for application system account explicitly (workaround
for Debian bug 865762 in Stretch).
- Updated Molecule tests to cover Debian 9.
- Updated Molecule test preparation playbook to account for a number
of differences between Jessie and Stretch (mainly related to mailing
functionality).
- Renamed a couple of variables in test for sending out mails to make
it clearer what is being looked up as part of regex matching.
- Updated Molecule tests where certain paths depend on what Debian
release they are ran against.
- Split-up Jessie-specific tests into separate file.
- Remove the /bin/ss utility instead of renaming it (testinfra socket
tests do not work with /bin/ss).

MAR-132: Fix virtual environment set-up in wsgi_website role:

- Install more up-to-date version of pip. This fixes some issues
related to pip freeze detecting argparse and wsgiref in virtualenv
as separate packages.
- Remove the pkg-resources package from virtualenv. Workaround for
Debian-specific behaviour. More details at:
- https://github.com/pypa/pip/issues/4022
- https://bugs.launchpad.net/ubuntu/+source/python-pip/+bug/1635463
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871790
- Deploy Gunicorn requirements file without switching to website admin
user (otherwise Ansible fails to template the file due to
permissions restrictions).
- Updated test for checking packages installed in the virtualenv.

MAR-132: Added support for Debian 9 (Stretch) to php_website role:

- Implemented the necessary changes related to differences between PHP
versions and related paths (PHP 5 vs PHP 7).
- Set the shell for application system account explicitly (workaround
for Debian bug 865762 in Stretch).
- Updated Molecule tests to cover Debian 9.
- Updated Molecule test preparation playbook to account for a number
of differences between Jessie and Stretch (mainly related to mailing
functionality).
- Use more specific host groups in tests.
- Renamed a couple of variables in test for sending out mails to make
it clearer what is being looked up as part of regex matching.
- Updated Molecule tests where certain paths depend on what Debian
release they are ran against.
- Split-up Jessie-specific tests into separate file.

MAR-132: Added support for Debian 9 (Stretch) to web_server role:

- Introduced internal parameters for controlling differing package
names, service names, and paths for PHP FPM package.
- Added Debian 9 machines to Molecule configuration, including the
client machine.
- Restructured slightly preparaiton playbook to support both Jessie
and Stretch.
- Added custom pytest fixture for having a better way to determine
expected package names etc related to PHP.
- Created copy of private key/certificate pair used for testing of
mandatory parameters (to be used with Stretch machine).
- Fixed invalid specification for hosts on top of which the
connectivity test should be run.
- Updated a couple of task names (avoiding to reference PHP 5).
- Updated documentation.

MAR-132: Added support for Debian 9 (Stretch) to mail_server role:

- Updated Molecule configuration to include set-up of additional
instances for testing.
- Updated configuration for test instances.
- Use separate clients in testing of Jessie/Stretch instances.
- Duplicate private keys/certificates for testing of mandatory
parameters on Debian 9.
- Refactored testing of mail deliveries (via swaks) to use
test-generated message ID - improves reliability and solves some
incompatibilities between swaks version in Jessie and Stretch.
- Updated tests for TLS testing to take into account newer OpenSSL
error/output messages. A bit of an ugly hack at the moment, but
beats duplicating tests for now.

MAR-132: Fixed creation of test LDAP entries mail_server role tests:

- Do not use the ldap_entries option of the ldap_server role.
- Invoke the ldap_entry and ldap_attr modules directly.

MAR-132: Added support to xmpp_server role for Debian 9 (Stretch):

- Updated tests to include Debian 9 in testing. Existing private keys
are reused where possible (since most of the naming is identical
between the machines with jessie/stretch).
- Updated invocation of sendxmpp in tests as workaround for
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854210.
- Updated testing of imported keys to accomodate differences between
gpg/gpg2 (used by apt-key in Jessie/Stretch).

MAR-132: LDAP-related fixes to xmpp_server role tests:

- Do not create LDAP accounts through the ldap_entries parameter of
ldap_server, use the ldap_entry and ldap_attr modules directly.

MAR-132: Add support for Debian 9 (Stretch) to ldap_server role:

- Updated Molecule tests to cover Debian 9 as well.
- Remove the ss utility instead of renaming it when preparing for
tests, and make sure the netstat utility is available.
- Duplicate private key/certificate for mandatory parameters testing.

MAR-132: Parametrise tests in ldap_server role:

- Dynamically obtain inventory hostnames (don't hard-code them).
- Parametrise connectivity test, switching to using inventory
hostnames along the way (instead of hard-coded IPs in tests.
- Populate /etc/hosts with inventory hostnames in client machine (used
for connectivity tests).

MAR-131: Use Python 3 in test site wsgihello2 role:

- Switch role to use Python 3 via meta dependency.
- Fix the demo application to work with Python 3.
- Update ipcalc dependency (so it would work with Python 3).

MAR-131: Added support for specifying Python version in wsgi_website role:

- Introduced additional role parameter for specifying the Python
version.
- Updated tests to verify new functionality.
- Fixed existing tests to account for differences between Python 2 and
Python 3 - including changes to WSGI test applications.
- Updated documentation, documenting new parameter and fixing one
minor typo.
- Updated release notes.
- Bumped default version of Gunicorn/futures used.

MAR-133: Improve output for certificate checks:

- Do not produce warnings in case no certificates have been configured
for checking.
- Only send out mails about certificates that are about to expire.
- Include information in how many days a certificate is going to
expire.
- Include information on whether the certificates has already expired.

MAR-129: Added release note on breaking change in ldap_server role:

- The ldap_entries parameter can't use state "append" - since this was
part of the old m_ldap_entry module implementation.

MAR-129: Update instructions to address a couple of issues:

- Improved formatting in a number of places.
- Fixed a bunch of typos etc.
- Improved wording where relevant.
- Moved around a couple of steps related to adding users to specific
LDAP groups - otherwise we try to add them before groups are
created.
- Fixed some deprecated syntax for including playbooks.

MAR-129: Added information about test tools to development documentation:

- Document use of mcabber/mutt configuration files for trying out the
XMPP/mail server.

MAR-129: Update development documentation for testsite:

- Update versions of VirtualBox/Vagrant that have been tested.
- Move notes about how the servers have been set-up to towards
beginning of section describing the test site.
- Put deployment of test site into a sub-section of its own.