Changelog¶
debops-playbooks
This project adheres to Semantic Versioning and human-readable changelog.
debops-playbooks master - unreleased¶
debops-playbooks v0.2.9 - 2016-07-07¶
Added¶
- Add
debops.snmpdrole dependencies toservice/snmpd.ymlplaybook. [drybjed] - Add
debops.unattended_upgradesrole to thecommon.ymlplaybook as well as its ownservice/unattended_upgrades.ymlplaybook. The support forunattended-upgradespackage indebops.aptrole will be removed. [drybjed] - Add
debops.apt_cacher_ngrole to it’s ownservice/apt_cacher_ng.ymlplaybook. The server-side support for theapt-cacher-ngpackage indebops.aptrole has be removed. Client-side support is being reworked indebops.apt. [ypid] - Add
debops.gitlab_runnerrole and playbook. [drybjed] - Add
debops.logrotaterole and playbook, available as a standalone service as well as included in thecommon.ymlplaybook. [drybjed] - Add the
debops.apt_installrole with its own playbook as well as in thecommon.ymlplaybook. [drybjed] - Add the “role dependency”
debops.apt_preferencestoservice/apt.yml. Especially with Debian Stretch enabled in sources.list(5), not runningdebops.apt_preferencestogether withdebops.aptcould risk installing new packages from Stretch. Usingapt_preferences__preset_listcan avoid that. [ypid] - Ensure that the
galaxy/requirements*files are up-to-date by making it easy to regenerate them and check if they are up-to-date via Travis CI. [ypid] - Add
debops.preseedrole dependencies toservice/preseed.ymlplaybook. [ypid] - Add back some of the roles that were removed previously from Ansible Galaxy requirements. They are still present in the playbook, and will be removed at a later date. [drybjed]
- Add
debops.resourcesrole and its playbook. [drybjed]
Changed¶
- Update the
service/iscsi.ymlplaybook to use roles that were previously hard dependencies of thedebops.iscsirole. [drybjed] - Update the variables related to
debops.sshddue to change in the variable naming scheme. You might need to update your Ansible inventory. [drybjed] - Update the
service/tinc.ymlplaybook with support for newdebops.tincrelease. [drybjed] - Update the
service/mailman.ymlplaybook with support for newdebops.mailmanrelease. [drybjed] - Moved roles dependencies from
debops.subnetworkto subnetwork playbook. [ypid] - Update
debops.apt_cacher_ngplaybook and add support fornginxproxy for the cache. [drybjed] - Replace
app/gitlab_ci*.ymlplaybooks withdebops.gitlab_runnerplaybook. The old GitLab CI and GitLab CI Runner roles will no longer be active by default, since GitLab CI has been merged into GitLab itself. [drybjed] - Update the
debops.rsyslogplaybook as well as thecommon.ymlplaybook to support the rewrittendebops.rsyslogrole. [drybjed] - Update the
debops.ntpplaybook andcommon.ymlplaybook to use the new variable names. [drybjed] - Update
debops.mariadb_serverplaybook to include its role dependencies. [drybjed] - Update the
service/postgresql_server.ymlplaybook to use new namespaced variables. [drybjed] - Update the
service/postgresql.ymlplaybook to use new namespaced variables. [drybjed] - Run
debops.aptearlier in thecommon.ymlplaybook to setup things like APT proxy and sources.list(5) for other roles. [ypid] - Update
service/ruby.ymlplaybook to use new role variables. [drybjed] - Update
service/goland.ymlplaybook to use new role variables. [drybjed] - Update Changelog and other documentation to current project standards. [drybjed]
Removed¶
- Remove
debops.directoriesrole and replace it withdebops.resources, which is included in thecommon.ymlplaybook. [drybjed]
Fixed¶
- Fix compatibility issues of custom lookup plugins in Ansible v2.1+. [abadger]
debops-playbooks v0.2.8 - 2016-02-07¶
Added¶
Add
debops.swapfilerole. [drybjed]Add
debops.atdrole, included in thecommon.ymlplaybook by default.The
atandbatchcommands can be used to schedule delayed jobs using Ansibleatmodule. [drybjed]Add
debops.dhparamrole, included in thecommon.ymlplaybook by default. [drybjed]Add
debops.sshdconfiguration variables todebops.apt_preferences,debops.fermanddebops.tcpwrappersconfiguration in common playbook. [drybjed]Add set of common “service” playbooks that invoke Ansible roles that are used on all hosts. [drybjed]
Add playbook for
debops.ntprole and updatecommon.ymlplaybook withdebops.ntpfirewall configuration. [drybjed]Add
[debops_service_*]host groups to all relevant playbooks and clean up thehostsline in all playbooks to use YAML lists instead of Ansible patterns. This should ensure that during transition from colons to commas there shouldn’t be any issues. [drybjed]You can use sed --regexp-extended --in-place '/[debops_service_/! s/^[debops_(.+)]$/[debops_service_1]/' hosts to update your inventory file. [ypid]
Add
debops.cryptsetuprole, which can be used to manage filesystems encrypted using LUKS. Role was created by Robin Schneider. Thanks! [drybjed]Add
debops.apt_preferencesrole toservice/postgresql.ymlplaybook. [drybjed]Add missing
fermconfiguration fordebops.postfixrole. [drybjed]Add missing playbooks for roles included in
common.ymlplaybook so that they can be easily executed on their own. [drybjed]
Changed¶
- All playbooks now use
become: Trueinstead ofsudo: Trueto enable privileged operation. [drybjed] - Redesign common playbooks to only work with hosts that are in
[debops_all_hosts]inventory group. This should improve support for non-DebOps managed hosts in Ansible inventory, but it requires modification of existing inventories. [drybjed] - Update the Postfix, nginx and slapd playbooks to include the firewall and TCP
Wrappers roles. OpenLDAP and nginx Ansible host groups have been renamed, you
will need to update the inventory. Postfix playbook is prepared to manage
Postfix as standalone service, not part of the
common.ymlplaybook. [drybjed] - Move all role playbooks to
service/subdirectory and create symlinks in old locations. [drybjed] - Update
service/docker.ymlplaybook and include additional roles required to configure the service properly. [drybjed] - Update “Getting Started Guide” and parts of other documentation. [drybjed]
- Moved roles dependencies from
debops.owncloudto owncloud playbook. [ypid] - Moved roles dependencies from
debops.tincto tinc playbook. [le9i0nx] - Moved roles dependencies from
debops.postgresql_serverto postgresql_server playbook. [drybjed] - Update the
common.ymlplaybook andservice/pki.ymlplaybook with newdebops.pkirole requirements. [drybjed] - Allow execution of
debops.pkirole withrole::pki:secrettag so that it will create secret directories but nothing else. [drybjed]
Removed¶
- Remove the
default([])alternatives from playbooks to make them work correctly on Ansible v1. [drybjed] - Remove legacy tags from role playbooks. [drybjed]
- Remove
d([])fromcommon.ymlplaybook to pass the variables correctly between roles. [drybjed]
Fixed¶
- Fix support for
no_log: Trueparameter inldap_entryAnsible module, so that it works correctly on Ansible v2. [drybjed]
debops-playbooks v0.2.7 - 2015-10-15¶
Added¶
- Add
debops.lvmrole. [drybjed] - Add
debops.iscsirole. [drybjed] - Add
debops.libvirtanddebops.libvirtdroles.debops.kvmrole is dropped, due to being replaced bydebops.libvirtd. Hosts in[debops_kvm]host group will need to be moved to[debops_libvirtd], there might be some variable changes as well. [drybjed] - Add a context-based tags to common playbook as an experiment (
libvirt(d)roles already use them). Context tags are inspired bydebtagsand will allow more fine-grained control over playbook tasks, when roles start to use them internally. Old-style tags will be phased out after some time. [drybjed] - Add
debops.librenmsrole. [drybjed] - Add
debops.corerole as well ascore.ymlplaybook and replace theroot.ymlplaybook. This change may affect anyroot_*variables set in the inventory. Checkdebops.corerole documentation for new variable names. [drybjed] - Add
debops.fcgiwraprole. [drybjed] - Add new role tags in all playbooks. [drybjed]
- Add
debops.grubrole, created by Patryk Ściborek (scibi). Thanks! [drybjed] - Add
debops.dockerrole. [drybjed] - Add
globmatch()Ansible filter plugin. Using this filter, you can match strings or lists of strings against a shell glob pattern (a string or a list of patterns). This can be used to easily match one or more strings in a list using*and?characters. [drybjed] - Add
debops.docker_genrole. [drybjed] - Add
ldappasswordfilter. [scibi] - Add
debops.postgresql_serverrole. [drybjed]
Changed¶
- Hosts in
[debops_no_common]host group will no longer run a common playbook. [drybjed] - Lookup plugins
task_src,template_srcandfile_srcare updated using input from James Cammarata to work both in old Ansible 1.x series as well as in the new 2.x series. Thanks! [drybjed] - Split the
environments.ymlplaybook into smaller plays included in the main playbook to see if this model has any issues. This change should make user of specific role plays easier on the command line and from other playbooks. [drybjed] - Split
virtualization.ymlplaybook into separate plays. [drybjed] - All playbooks have been split into small plays. Playbook directories have shorter names, which are easier to use from the command line. [drybjed]
Removed¶
- Remove
root.ymlplaybook and its additional files - its functionality has been moved todebops.coreAnsible role. [drybjed]
debops-playbooks v0.2.6 - 2015-07-14¶
Added¶
- Add
debops.fail2banrole. [drybjed] - Add
debops.preseedrole. [drybjed] - Add
debops.ipxerole. [drybjed] - Add
debops.tftpdrole. [drybjed] - Add
debops.tgtrole. [drybjed] - Add variables to set admin home directory group and permissions in
bootstrap.ymlplaybook. [drybjed] - Add
debops.rstudio_serverrole. [drybjed] - Add
debops.tincrole. [drybjed] - Add
ansible_local.timezonefact which returns currently set timezone in/etc/timezone. Fact provided by Ansible itself inansible_date_time.tzis not suitable to use in application configuration files. [drybjed] - Add
debops.snmpdrole. [drybjed] - Add
debops.memcachedrole. [drybjed] - Add MariaDB server and client roles. [drybjed]
Changed¶
- Ansible will now try and read the remote host UUID using
dmidecodeand prefer that over using a randomly generated UUID if possible. This works on hardware hosts and virtual machines, but shouldn’t in containers. [drybjed] - During
root.ymlplaybook, grab only the last line ofdmidecodeoutput in case that it decides to emit comments about not supporting older releases inSTDOUT. [drybjed] - Update of the
bootstrap.ymlplaybook; there are now more variables that define the administrator account, admin account will be now a “system” account by default (UID < 1000). Playbook checks if an account with a given name already exists and does not change its parameters if it does. Admin account will be in more groups by default (admins(passwordless sudo access),staffandadm). [drybjed] - Move the Changelog references to the end of the file and remove duplicates, so that Sphinx does not complain about them. [drybjed]
- Replace old headers in Changelog to use current header order. [drybjed]
- Move relevant documentation to
debops-playbooksrepository. [drybjed]
Removed¶
- Remove
debops.ansiblerole from requirements, you should switch to creating anansibleDebian package and installing it on remote servers using local APT repository. [drybjed] - Remove
debops.encfsrole from requirements, it’s not used anymore and is ill designed to be used on servers at this point. [drybjed] - Remove
debops.safekeeprole from requirements, SafeKeep is not in official Debian repositories therefore installation requires manual steps,debops.rsnapshotis a better alternative. [drybjed] - Remove
debops.debugrole from requirements,tools/debug.ymlplaybook should be a better alternative and it’s easier to use. [drybjed] - Convert
bootstrap.ymlplaybook to an Ansible role. [drybjed]
debops-playbooks v0.2.5 - 2015-04-01¶
Added¶
- Add
debops.dokuwikirole. [drybjed] - Add a “testing channel” Galaxy requirements file, to be used to download Ansible roles with “testing” branch instead of “master”. [drybjed]
- Reto Gantenbein created a Dovecot role which has been added to the DebOps
project. Thanks!
debops.dovecotcan be used to manage IMAP/POP3 service which will let you access your mail remotely over a secure connection. [ganto, drybjed]
debops-playbooks v0.2.4 - 2015-03-26¶
Added¶
- Add separate “root fact” directory where applications are installed, by default the same as the path for service home directories. [drybjed]
- Install
python-pipduring bootstrapping. [htgoebel] - Add a way to install custom packages during bootstrapping. [drybjed]
- Add
debops.stunnelrole. [drybjed]
Changed¶
- Reorder
networking.ymlplaybook to run network-related roles before main services and applications. This should make sure that networking is correctly set up when it’s needed. [drybjed]
debops-playbooks v0.2.3 - 2015-03-05¶
Added¶
- Added new lookup plugins,
file_srcandtemplate_srcwhich allow custom template and file search paths in roles. [rchady] - You can set global “root flags” on hosts using
root.ymlplaybook. Ansible roles can check for their presence or absence and automatically change their behavior. [drybjed]
Changed¶
- Roles in
common.ymlplaybook are rearranged to better support LDAP integration and avoid possible SSH lockdown if host was not prepared usingbootstrap.ymlplaybook or preseeding. [drybjed] - Scripts which provide custom facts will be installed on the first run of
the
root.ymlplaybook. First such script provides a list of currently enabled Linux capabilities, inansible_local.cap12sfact tree. [htgoebel, drybjed] bootstrap.ymlplaybook will check if it can change the hostname before doing it using Linux capabilities. [htgoebel, drybjed]
debops-playbooks v0.2.2 - 2015-02-25¶
Added¶
- Add support for STARTTLS in
ldap_attrandldap_entrymodules [psagers]
Changed¶
- Fix issue with
ldap_entrynot handlingno_log: Truein argument list properly [drybjed]
debops-playbooks v0.2.1 - 2015-02-24¶
Changed¶
- Move
library/directory into correct place and sort modules in subdirectories mirroring the official layout. [drybjed]
debops-playbooks v0.2.0 - 2015-02-22¶
Added¶
- New role: debops.rsnapshot [drybjed]
Changed¶
- Variables from
bootstrap.ymlplaybook can now be customized using inventory. [drybjed] - Bootstrap variable names have been changed to be similar to what is used in other DebOps roles. Variable that specifies SSH key to install is now a normal Ansible list. [drybjed]
debops-playbooks v0.1.0 - 2015-02-16¶
Added¶
- New paths have been added to
root.ymlservice paths. [drybjed]
Changed¶
- Format of the Changelog is modified to reflect new versioning. Old entries are preserved. [drybjed]
ansible_local.root.homedefault path has been changed from/var/libto/var/localto move home directories out of the way of the system packages. [drybjed]root.ymlservice paths that are already configured on remote host as facts will override playbook or inventory changes to protect already installed services from future changes. [drybjed]
2015-02-12¶
Playbook updates¶
Due to practical reasons, role updates will be written in roles themselves from
now on, in CHANGES.rst files.
New “root variable” has been added to root.yml playbook,
ansible_local.root.uuid. It will contain a random UUID generated on first
DebOps run. It can be used to uniquely identify an instance of a particular
host.
2015-02-06¶
Role updates¶
OpenLDAP server managed by debops.slapd role has gained support for TLS out
of the box, using certificates managed by debops.pki role. By default,
slapd server listens for normal plain text connections, which can be
protected by the client requesting a StartTLS session, as well as for encrypted
SSL/TLS connections. This also marks the removal of Beta status from
debops.slapd role.
To stay on the safe side, debops.auth role, which configures
/etc/ldap/ldap.conf, will automatically set encrypted connections to
OpenLDAP server using ldaps:// protocol. You can of course change that
using role default variables.
Playbook updates¶
To make LDAP use easier within Ansible playbooks, I’ve included two
Ansible LDAP modules created by Peter Sagerson in the main DebOps playbook
library/ directory, which makes them available anywhere within DebOps
project directories (in playbooks and roles). You can use ldap_entry and
ldap_attr modules to manipulate your LDAP database, look in each module
source code for examples.
2015-02-05¶
Role updates¶
debops.mysql role can now configure a MySQL server with SSL support enabled by default, using PKI infrastructure managed by debops.pki role.
debops.nginx role gained support for setting server-wide (as in, per domain)
allow/deny rules, which is more secure than just per-location (which was
available previously). You can use Ansible lists to specify which hosts or
networks have access to the server.
You can now configure HTTP Basic Authentication in debops.nginx role. It
works on a server level (restricted access to individual servers), as well as
on the host level (restricted access to all nginx servers configured on this
host). debops.nginx has a built-in support for htpasswd files - you
specify a list of user accounts to configure in Ansible inventory, and
passwords themselves are stored in secret/ directory, managed by
debops.secret role.
2015-02-04¶
Role updates¶
I have found out that some applications do not support SSL/TLS certificate
chains correctly. Because of that, I have added a separate PKI realm,
/etc/pki/service/, with corresponding Root Certificate Authority, which
will sign certificates directly. It is meant for internal use only, each host
in a cluster has its own certificate shared by all services on this host,
private key is accessible for users belonging to ssl-cert system group.
For reference, Debian Bug #630625 which indicates that MySQL does not
support certificate chains out of the box. If other such services are found,
they will now use service PKI realm by default.
2015-02-03¶
Role updates¶
debops.nginx role will now track HTTP and HTTPS default_server
configuration option separately, which should make it even more roboust and
hard to break accidentally. Code which selected default_server was moved
out of the server template and into separate Ansible tasks.
Nginx role has exposed two variables using local Ansible facts:
ansible_local.nginx.useris the default system user (www-data) which is used to run the webserver. Some of the roles need to give read-only or read-write access to his user for specific files. To have it work properly, debops.nginx role needs to be run before your own role, or you need to have it in your role’s dependencies.ansible_local.nginx.wwwis the default directory for web-accessible files (/srv/www). Most of the time you will use it by creating separate subdirectory for a specific system user. Nginx role uses a specific structure based on this path to automatically generaterootconfiguration parameters;
Playbook updates¶
New playbook, tools/dist-upgrade.yml has been added. It should help with
upgrading to next version of your favorite OS, currently supported upgrade
paths are from Debian Wheezy to Debian Jessie and from Ubuntu Trusty to Ubuntu
Utopic.
To use the new playbook on a selected host, run command:
debops tools/dist-upgrade --limit hostname
Playbook is idempotent and it shouldn’t perform an upgrade on already upgraded hosts. After an upgrade is performed you should receive email message with the log of the procedure for review. After that you might want to re-run at least DebOps common playbook to make sure that any changes are accounted for and reboot the host.
Just a reminder, that at this time Debian Jessie is still a Testing distribution and you shouldn’t run the upgrade playbook on your production systems, unless you know what you are doing. DebOps playbooks and roles should work correctly installed on either Wheezy or Jessie (if not, post an issue), but they are not tested against an upgrade from one distribution to another.
I’ve created a separate dist-upgrade label for issues related to upgrade procedure. You should check it out before upgrading. If you find any issues regarding DebOps roles after performing an upgrade, please post them in debops/debops-playbooks repository so that they can be tracked in one place.
2015-02-01¶
Role updates¶
Small updates in debops.pki role:
- previously Diffie-Hellman parameter regeneration meant that on each Ansible
run contents of
/etc/pki/directory would change. Because role creates a snapshot of/etc/pki/directory on any changes and sends it to Ansible Controller, if you keep your inventory and secrets in agitrepository, it meant that your repository would constantly grow. Now debops.pki role will archive DH parameter files only the first time the snapshot file is created; subsequent snapshots will ignore them, and thus no changes will be recorded and snapshot file will not need to be archived, unless something else changes, for example certificates are added or updated. - you can now disable or change the frequency of Diffie-Hellman parameter
regeneration using inventory variables. Default frequency has been changed
from
dailytoweekly.
2015-01-31¶
Playbook updates¶
New playbook, root.yml has been added and part of the common.yml
playbook has been moved there. This playbook is meant to prepare the system for
the rest of the DebOps roles by creating a set of base directories:
- a root directory for service home directories, by default
/var/lib - a root directory for local data managed by the host,
/srv - a root directory for backups, both automated and manual,
/var/backups
Paths to these directories are saved in Ansible local facts. Other DebOps roles
can then access them using ansible_local.root hierarchy, for example:
role_home: '{{ ansible_local.root.home + "/role" }}'
role_data: '{{ ansible_local.root.data + "/role" }}'
role_backup: '{{ ansible_local.root.backup + "/role" }}'
Because of the way that Ansible manages dict variables,
ansible_local.root.* local facts will be required on all hosts managed by
DebOps playbooks and roles - otherwise you need to specifically check for
existence of ansible_local and ansible_local.root variables before
using them to avoid errors about missing variables.
If you use DebOps playbooks, this should be handled for you automatically. If
you use DebOps roles separately, you can add an include of root.yml
playbook to your set of playbooks and these facts should be created for you
automatically. root.yml does not need to be included in all your playbooks,
just in the first one at the beginning.
At the moment those variables are not used in any DebOps roles, that will change over time after a period of testing.
2015-01-28¶
Role updates¶
debops.reprepro role is no longer a dependency of debops.apt. Instead
it’s configured like any other service, by adding a host to
[debops_reprepro] host group. This allows you to create separate hosts with
different repositories if needed.
Default configuration of debops.reprepro role has 3 repositories:
- a backport repository configured for your installed release (for example on
Debian Wheezy it will manage packages for
wheezy-backports). You can upload to this repository directly; - a “staging” repository for your organization,
<release>-<domain>-staging. You can upload to this repository directly; - a “production” repository for your organization,
<release>-<domain>-prod, this repository is currently managed manually from therepreprouser account. You can promote packages to it from-stagingrepository usingreprepro pullcommand;
You can also enable mirrors of selected distributions as needed, which allows
you to use local APT mirror as a buffer between official repositories and your
servers, if you need it. To upload packages to repositories you can use
dput command to upload *.changes files over HTTPS.
debops.reprepro role automatically manages its GnuPG repository keys and
makes snapshots of current keyring state which are then uploaded to Ansible
Controller’s secret/ directory. In case of a reinstall, role will reuse
already existing GnuPG keys if they are found on Ansible Controller.
There are many more configuration options prepared in debops.reprepro,
I suggest that you read its defaults/main.yml file to see what’s available.
Because of above changes, you need to separately add your local repositories in
debops.apt configuration variables. To make it easier, there is now
a separate list variable for APT key definitions (apt_keys, as well as
a way to add APT keys and repositories in a “delayed” way - instead of
configuring your own repository immediately on first install, which could
result in an error if repository is not yet set up, you can add configuration
in separate set of apt_{keys,sources}_delayed variables which will be used
only after debops.apt role had configured a host once.
Another small change in debops.apt is modification of conditional package
installations - instead of separate apt module calls, packages are enabled
dynamically during Ansible run using set_fact module. debops.apt will
now also correctly distinguish Debian and Ubuntu firmware packages which are
named differently between those two distributions.
2015-01-21¶
Role updates¶
Webserver status page has been enabled by default in debops.nginx, it’s
accessible on /nginx_status location, initially only from localhost
addresses (from the webserver itself). You can add additional IP addresses or
CIDR ranges using separate list, nginx_status.
Fix for CVE-2013-4547 has been removed from the server template, since the issue has already been mitigated in Debian.
2015-01-20¶
Role updates¶
debops.gitlab_ci role has been updated to support GitLab CI 5.4, with GitLab 7.7 providing authorization based on OAuth. Due to the changes in GitLab CI itself, some configuration variables have been changed - check the role defaults for new ones (mainly, you can define only 1 GitLab instance to connect to).
debops.users role has been slightly cleaned up and root-proofed - it
shouldn’t make an error if you are connecting to your hosts directly as
root account anymore. Role uses default(omit) filter in its tasks,
which means that DebOps now requires Ansible >= 1.8 for correct operation.
New playbook plugins¶
Hartmut Goebel created a small lookup plugin, with_lists, which allows
you to use lists of items as “items” themselves, see an example in the
with_lists plugin. Thanks!
2015-01-18¶
Role updates¶
debops.gitlab role has been finally rewritten. Lots of important changes:
- support for GitLab 7.7 out of the box, even before official release ;)
- new home directory,
/var/local/git/, you might want to reinstall your GitLab instance from scratch or take care with moving your old instance files to new location; - role does not depend on configuration file hashes anymore, updates should be much easier to perform and support for new versions should be included in a more timely manner;
debops.gitlabwill configure a daily backup of the application data to/var/backups/gitlab/, backup files older than a week should be automatically cleaned up;- new GitLab install uses a random password stored in the DebOps
secret/directory instead of the official password. Default admin account will have an email address in your domain instead ofadmin@example.com, so random bounced mails shouldn’t be a problem anymore;
Playbook updates¶
bootstrap.yml playbook gained new tasks which can be used to set hostname
and domain on a given host. You can define bootstrap_hostname or
bootstrap_domain variables in inventory and Ansible will try to enforce
these settings on a given host as well as in /etc/hosts. This functionality
makes the tools/fqdn.yml playbook redundant, so it’s removed.
2015-01-13¶
Happy New Year 2015!
PKI rewrite¶
I’ve worked on debops.pki role since December, holiday season delayed it slightly, but finally it is here. :-)
New PKI infrastructure in DebOps is designed around creating and managing
Certificate Authorities on the Ansible Controller, inside secret/ directory
managed by debops.secret, signing Certificate Requests generated by remote
hosts and sending back certificates. There’s 1 Root CA certificate you need to
import into your browser or host certificate store and after that, all other
servers should show up in your browser as accepted automatically.
You can also very easily copy your own certificates signed by an external CA,
with private keys if needed, to your servers using a set of directories in the
secret/ directory.
Several roles which depended on the old debops.pki role have been now updated as well and take advantage of functionality present in the new PKI infrastructure. These roles are:
If you use any of these roles in your infrastructure, take care to make sure that your certificates are moved into new directory structure and configuration is updated as needed.
If there are any questions regarding new PKI and how to use it, feel free to ask them on the IRC channel or on the mailing list.
2014-12-23¶
Role updates¶
debops.users role can now set or update user passwords (by default no passwords are set).
debops.ntp role has gained support for ntpd daemon, thanks to
RedRampage. Because of the issues with role dependency variables and Jinja,
access to NTP service through firewall is now controlled by a separate
variable, ntp_firewall_access. By default, remote access is disabled.
2014-12-05¶
New roles¶
- debops.salt role allows you to install and configure Salt Master service. You can use this to create Salt control host to which other hosts (Salt Minions) can connect to. At the moment configuration is very basic, Salt master will automatically listen to IPv6 connections and firewall will be configured to accept connections on default ports.
Role updates¶
Salt Minion preseeding has been added in debops.apt (current Debian Preseed
configuration is there, will be moved in the future to separate role),
debops.lxc and debops.openvz roles. Automatic minion installation is
disabled by default and can be enabled separately for each “mode” - Debian
Preseed postinst script in case of physical hosts or KVM virtual machines, LXC
template script for LXC containers, OpenVZ bootstrap script for OpenVZ
containers. After installation, salt-minion will try to connect to salt
host, so make sure that it’s present in your DNS configuration for best
results.
2014-12-03¶
Role updates¶
Continuing the GitLab revamp, debops.gitlab_ci_runner role has also been refactored and is unfortunately not compatible with the previous version, reinstall of the nost is recommended.
Runner home directory has been moved to /var/local/ directory, most of role
dependencies have been dropped and role now needs less upkeep than before. You
can read about changes in latest commit.
2014-12-02¶
DebOps mailing list has been moved to groups.io.
Role updates¶
debops.gitlab_ci role has been significantly refactored. Due to bug in
GitLab CI 5.0 at the moment this version cannot be installed, so I decided to
use this opportunity to make some deep changes in the role. GitLab CI home has
been moved to /var/local/gitlab-ci/ directory, and various tasks related to
updating the application have been streamlined. You can read more information
about various changes in the commit message.
2014-12-01¶
Hartmut Goebel has joined DebOps team and wrote an excellent guide for using DebOps scripts and playbooks with Vagrant on single and multiple hosts. It’s available in debops/examples repository.
Role updates¶
All DebOps roles again use Ansible devel branch on Travis CI for tests.
debops.debops role has been rewritten and updated to support current project
installation method. By default only DebOps scripts will be installed system
wide, but you can also install playbooks and roles to /usr/local by setting
a variable. Dependency on debops.ansible role has been dropped and that role
will be removed in the future. You can install Ansible from a Debian repository
or by providing your own .deb package.
RedRampage has provided a failover code for debops.dhcpd role which should help set up failover DHCP servers. Thanks!
Several DebOps roles had a small fixes related to ansible-playbook --check
command, which can now be used to check for possible changes before applying
them on the remote hosts. Due to bugs in older Ansible versions this
functionality works correctly on Ansible 1.8+ or current devel branch.
2014-11-27¶
Role updates¶
Support for management of SSH host fingerprints in /etc/ssh/ssh_known_hosts
(via debops.sshd role) and /root/.ssh/known_hosts on OpenVZ hosts (via
debops.openvz role) has been redesigned and no longer uses assemble
Ansible module. Instead, Ansible checks already present fingerprints and adds
new ones if they are not present in the files. This helps better obfuscate
scanned hosts, which previously could be inferred from filenames of parts
assembled earlier.
Instances of with_items using multiple lists in a few roles have been
replaced with with_flattened which works better in new release of Ansible,
1.8+.
debops.openvz role has been slightly updated and redundant configuration of
ferm and sysctl, already configured by debops.ferm role, has been
dropped to prevent duplication.
2014-11-26¶
Role updates¶
debops.nginx role will now preserve the status for default_server of
a particular configuration file in case that another instance of the role is
added in the Ansible run. Saved local fact about which server is the default
one will take precedence over automatically calculated setting.
If nginx role notices that Ansible local facts are missing, it will remove
all files and symlinks from /etc/nginx/sites-enabled/ directory. This
should happen in two instances - either nginx is configured for the first
time, or /etc/ansible/facts.d/nginx.fact file has been removed. In that
case all active config symlinks will be removed to prevent accidental errors
from some old, not regenerated configuration files.
2014-11-25¶
New roles¶
- debops.hwraid is a role that configures access to HWRaid package
repository and installs packages for recognized RAID storage arrays connected
to your hosts. It can be used to quickly and easily setup basic monitoring
for your storage - many packages contain automated scripts which send mail to
rootaccount in case of issues with RAID.
Role updates¶
debops.auth role will now manage /etc/ldap/ldap.conf configuration file.
By default, LDAP server on local domain is set up (currently without any
encryption, so treat this as experimental feature and don’t use it in
production) with local domain specified as BaseDN. you can change this in role
default variables.
DebOps will automatically configure hidepid=2 option in /proc
filesystem on selected hosts (hardware servers and fully virtualized VMs),
using debops.console role. This functionality hides other users’ process
information for unprivileged accounts. A separate system group, procadmins
has been reserved for monitoring services and users that need full access to
the /proc filesystem.
2014-11-24¶
New roles¶
- debops.slapd role manages OpenLDAP server,
slapd. At the moment role is in beta stage - currently there is no SSL encryption available, no backup/restore scripts and no replication. But role installs a few useful scripts andslapdmanagement is done using custom Ansible modules. Deeper integration between OpenLDAP and other DebOps services will be created in the future.
Role updates¶
Because of recent changes in the debops.tcpwrappers role I decided to make the
ferm rules for SSH access more strict. From now on, iptables will
check new SSH connections over period of 1 hour, if more than 3 new connections
from 1 IP address are attempted during that time, and address is not in the
whitelist, it will be blocked for 2 hours, with each new connection attempt
resetting the timer. All this is now configurable in debops.sshd and
debops.ferm roles.
Thanks to htgoebel’s suggestion I was able to refactor Postfix hash tables
management. They are now generated from all *.in files in current
directory, which means that other Ansible roles or even other scripts can put
their own files in /etc/postfix/hash_*/ directories and if they are named
with *.in extension, their corresponding *.db files will be created
automatically. Thanks to that, debops.postfix role now generates tables from
templates using with_fileglob instead of static lists of templates, which
makes the process of adding new tables if necessary much easier.
2014-11-22¶
Role updates¶
You can now specify default value for entries in debops.tcpwrappers role,
using item.default key. If this key is specified, and item.clients is
not present or is empty, default value will be used instead. Specify 'ALL'
to allow connections from any host.
Consequently, debops.sshd role now will allow connections from any host by
default in /etc/hosts.allow. If you previously used a list of hosts using
sshd_*_allow, your configuration shouldn’t be affected.
2014-11-20¶
Role updates¶
debops.ifupdown will now check if previous network configuration in
/etc/network/interfaces was using static IP addresses, which indicates that
DHCP is not available on the network. In that case, a basic static IPv4
interface configuration will be used with information gathered by Ansible to
setup a default network interface. This should prevent sudden loss of
communication in cases where hosts are configured statically.
Playbook updates¶
tools/hostname.yml playbook has been renamed to tools/fqdn.yml and can
get the new hostname and domain from fqdn variable defined in inventory,
which is less awkward to use than renaming the host in inventory file directly.
2014-11-19¶
Role updates¶
Network forwarding configuration in iptables has been moved from
debops.kvm, debops.lxc and debops.subnetwork roles into debops.ferm
to avoid duplication. This will also result in forwarded network interfaces
being able to accept Router Advertisements and configure their IPv6 addresses
using SLAAC. In short, easier network configuration.
Hartmut Goebel has provided a set of Raspbian APT repositories for debops.apt role, thanks! Unfortunately, at the moment Ansible does not correctly recognize Raspian as a separate distribution which prevents automatic source selection, but there are workarounds.
Because of the recent Debian Jessie freeze, DebOps project is starting preparations for full Jessie support, both as a standalone install, as well as an upgrade from Wheezy.
All debops.ferm configuration files had changed ownership from
root:root to root:adm which is the default in Debian. This change
should prevent back-and-forth changes of ownership after system has been
upgraded, which forces ferm files to change ownership to root:adm.
Some APT configuration files in debops.apt role have been renamed to avoid
conflicts with existing files during the upgrade, this should prevent
debconf questions about replacing modified configuration files.
Both debops.apt and debops.lxc roles now support
ansible_distribution_release in 'release/sid format, which lets DebOps
function correctly on Jessie during the freeze. There might be other roles
which need to be updated to support this syntax, they will be fixed later.
debops.auth role now uses full templates instead of lineinfile module to
configure sudo and su admin access. This should prevent debconf
asking about modifications in /etc/pam.d/su (which is now diverted), and
lets sudo have more configuration options for admins group.
Playbook updates¶
New playbook, tools/hostname.yml can be used to change the hostname and
FQDN of a host to those defined in Ansible inventory (and yes, you can do
multiple hosts at once). It’s advised to not do it after services have been
configured, since some of them may rely on the correct FQDN defined in DNS. If
you use DHCP to automatically configure DNS (for example with dnsmasq,
rebooting the host after changing the hostname should ensure that the new FQDN
is correct.
2014-11-13¶
Role updates¶
debops.postfix role will now correctly work on hosts without FQDN
configured. On these hosts, Postfix will automatically override its configured
capabilities and enable local mail delivery, mail will be originating from the
host instead of the domain. Postfix role will also no longer modify
/etc/hosts to rewrite IPv6 localhost address, it seems that the
annoying warning in the mail log about unknown connection source has been
fixed.
debops.dnsmasq role has been completely rewritten and now supports multiple
network interfaces and IPv6, among other things. It requires ipaddr()
filter plugin to work, but thanks to that it can automatically configure
services based on IP addresses configured on specified interface - no more
separate IP subnet configuration is needed. Role now also creates more
fine-grained CNAME records and has more configuration options.
And it’s out of beta! :-)
Playbook updates¶
Old ‘debops.nat’ role has been obsoleted by debops.subnetwork and removed
from ansible-galaxy requirements file. It will also be removed from GitHub
and Ansible Galaxy in the future. Also, debops.radvd has been added to the
requirements.
Virtualization playbook has been modified and roles that previously
automatically configured internal network and DNS services have been removed
from KVM and LXC plays (yes, this will change installation procedures in the
docs, which are not yet updated). New playbook, ‘networking.yml’ has been added
where you will find all network-related plays, like subnet creation and
management (via debops.subnetwork and DHCP/DNS management.
2014-11-07¶
New roles¶
debops.subnetwork is a replacement for old debops.nat role, with many
improvements. You can create a bridge interface with local network behind it
for virtual machines, or even switch to a real Ethernet interface for your
physical hosts. You can create both an IPv4 network, which will be
automatically configured behind NAT, and an IPv6 network (with multiple
prefixes). debops.subnetwork is not yet part of the main playbook, it will
replace the old NAT role when dnsmasq role is updated to support it.
Role updates¶
Because of the changes related to new networking, some code in debops.lxc, debops.kvm and debops.nat had to be moved around. Specifically, parts of the firewall and sysctl settings related to the LAN interface were moved into debops.subnetwork role and parts of the forwarding configuration to external and internal networks were added respectively to LXC and KVM roles.
2014-11-05¶
New playbooks¶
New playbook has been added, net/ipv6/6to4.yml. This playbook configures
6to4 tunnel interface on a host with public IPv4 address and allows you to
easily connect to IPv6 network. To do that, you need to put a host in
[debops_6to4] group. Afterwards, you can run the playbook using debops
script:
debops net/ipv6/6to4 -l host
This is first step towards transition to playbooks placed in subdirectories.
These playbooks will probably work correctly only with debops script, which
automatically generates ansible.cfg with correct configuration parameters.
To use these playbooks standalone, you will need to create your own
ansible.cfg and include in it paths to DebOps roles and plugins.
Role updates¶
You can now configure custom ferm rules using a custom template in
debops.ferm. New ferm_*_rules variables allow you to create rules in
/etc/ferm/ferm.d/ directory which can configure tables and chains other
than INPUT.
2014-11-04¶
New roles¶
Finally, it’s time to start bringing out new toys. :-) For starters,
debops.radvd role, which installs and lets you configure radvd, IPv6
Router Advertisement daemon. It will be used in future IPv6 router roles.
Playbook updates¶
ipaddr() filter has been rewritten again and it works now correctly with
lists of values. Filter was completely refactored internally and its output
should be now consistent with expectations. Hopefully for the last time.
2014-11-02¶
Playbook updates¶
More fixes in filters! split() filter will now handle incorrect input
values gracefully and return them in a list, since output is usually expected
to be a list. If a string cannot be split by specified separator, whole string
will be returned in a list.
ipaddr('6to4') filter has been updated to not convert private IPv4
addresses, since their behavior is unspecified, this way Ansible can easily
determine if a given IPv4 address can be used in 6to4 tunnel.
6to4 query will also now return proper ::/48 subnet instead of a single
IPv6 address, this way a subnet can be further manipulated to for example split
it into smaller ::/64 subnets.
New ipaddr() query type has been added - you can now specify positive or
negative numbers in a query, for example {{ '192.168.0.1/24' | ipaddr('-1') }}
will return last IPv4 address from a specified subnet. It’s an easy way to
define DHCP dynamic ranges in dnsmasq configuration.
New filter, ipsubnet() has been added. It lets you manipulate IPv4 and IPv6
subnets; given a subnet and CIDR prefix you can check the number of subnets
that it can be divided into, adding an index number to the query lets you get
a specific subnet. You can also check the biggest subnet an address can be in
by specifying the smallest prefix you’re interested in.
You can now pass a list to ipaddr() filter and it will return only items
that pass specified criteria, for example returns only list of IP addresses and
subnets by default, or only IPv6 addresses and subnets, etc. It’s not yet 100%
correct all the time and not all queries work (or make sense in this context).
2014-10-31¶
Playbook updates¶
New filter, split() has been added into filter plugins. It lets you split
strings into a list on a specified separator (by default, space). I’m amazed it
hasn’t been included yet in core Ansible. :-) split() filter has been
written by Tim Raasveld and is included with his blessing, thanks!
ipaddr() filter will from now on correctly handle false values like
False and "" by returning False when encountered. It also gained
new query type, '6to4' which lets you convert public IPv4 addresses into
6to4 IPv6 addresses or check if a specified IPv6 address/network is in
2002::/16 address range.
2014-10-28¶
Role updates¶
APT repository management in debops.apt role has been rewritten. Now role
supports multiple APT mirrors, as well as custom lists of repositories
dependent on the current distribution (repository lists for Debian and Ubuntu
are included). Configuration of default APT repositories has been moved from
a separate config file in /etc/apt/sources.list.d/ directly to
/etc/apt/sources.list, original configuration file is preserved using
dpkg-divert. Additionally, if debops.apt cannot recognize current
distribution, it won’t modify the default sources.list file, this can also
be enforced manually if needed.
2014-10-17¶
Role updates¶
Many more roles have now partial or full tests on Travis-CI, more to come.
Default version of Etherpad installed by debops.etherpad role has been
changed from 1.4.0 to develop, because current stable release does not
recognize new npm installed in Debian. It will be switched to the next
stable release when it’s available.
Because of the recent IPv6 changes in debops.nginx, management of nginx
configuration and daemon had to be changed slightly. Role will try to
automatically pick a sane server as the “default server”, if none are marked as
one, due to ipv6only=off parameter tied to default_server parameter.
Another added functionality is full nginx server restart when configuration
symlinks in /etc/nginx/sites-enabled/ directory are added or removed - this
should help with requirement to restart the service on interface changes.
Default admin username and SSH keys are now exposed as defaults/ variables
in debops.openvz role; SSH keys are also sourced from ssh-agent instead
of directly from the ~/.ssh/id_rsa.pub file.
2014-10-10¶
Playbook updates¶
Maciej Delmanowski wrote a set of custom filter plugins for Ansible which let you manipulate IPv4 and IPv6 addresses. You can test if a string is a valid IP address or convert them between various formats.
2014-10-09¶
Role updates¶
IPv6 firewall has been enabled by default in debops.ferm after all roles
that configure ferm directly had their configuration files fixed to support
both iptables and ip6tables commands.
debops.boxbackup has been finally converted from a “common” role (run from
common.yml playbook) to a group-based role. First host in
debops_boxbackup will be configured as the BoxBackup server and the rest
will be set up as its clients.
2014-10-07¶
Role updates¶
debops.ferm role is now IPv6-aware and can generate rules for iptables
and ip6tables at the same time. The way you use the role as a dependency
hasn’t changed at all, so if you use dependent variables in your roles, you
should be fine. However, because some roles are managing their firewall rules
by themselves, IPv6 support is disabled by default - this will change when all
roles are updated to be IPv6-aware.
debops.nginx also gained support for IPv6 and will now listen for connections on both types of networks by default. If you have an already running nginx server, it will require manual restart for the new configuration to take effect.
2014-10-05¶
All role README files have been converted to reStructuredText format.
Unfortunately, Ansible Galaxy does not support README.rst files at this
time, so role information cannot be updated there.
2014-10-02¶
Role updates¶
debops.nginx role has been updated. Most changes are either cleanup (change names of some internal role files, remove unused redundant variables, etc.).
/etc/nginx/http-default.d/ directory has been renamed to
/etc/nginx/site-default.d/ which hopefully better shows the purpose of this
directory in relation to nginx server configuration. Old directories haven’t
been removed; if you use it, you will need to move the configuration files
manually.
Support for map { } configuration sections has been added. It works
similarly to upstreams and servers, that means you can define your maps in
hashes and enable them using nginx_maps list. More information about
nginx map module can be found at the nginx website.
You can now remove configuration of servers, upstreams and maps from hosts by
adding delete: True to the configuration hashes.
Old remnants of the fastcgi_params configuration files are now
automatically removed by the nginx role. This is the second step of the switch
from custom to stock configuration file. Task which removes these old files
will be removed in the future.
2014-09-29¶
“{{ lookup(‘file’,’~/.ssh/id_rsa.pub) }}” considered harmful¶
The lookup above is common through Ansible playbooks and examples, and it is
used as a prime method of accessing SSH public keys of current account on
Ansible Controller host to, for example, install them on remote hosts using
authorized_key Ansible module.
However, this is by no means a portable solution. Users can have public SSH key files with completely different names, or don’t even have them at all and instead use other means of SSH authentication, like GPG keys or smartcards.
Because of that, I’m changing the way that SSH public keys will be accessed by
default in DebOps. For now, only playbooks/bootstrap.yml playbook will be
updated (this playbook is used to bootstrap new hosts and get them ready for
Ansible management), changes in other roles will come later. I hope that
authors of other roles will follow suit.
New way of accessing SSH keys will use SSH agent (or its alternatives): instead
of accessing the keys directly, Ansible will request a list of currently
enabled public keys from the SSH agent using "{{ lookup('pipe','ssh-add -L') }}"
lookup. Because that lookup can return an empty value which will not create an
error, you want to safeguard against that in a key configuration task using
failed_when: condition. Look in playbooks/bootstrap.yml to see how it’s
used with authorized_key task.
2014-09-22¶
inventory.secret is renamed to secret¶
If you use DebOps, or at least some roles from it, you probably are familiar
with debops.secret role, which makes handling sensitive and confidential
data easier within Ansible playbooks and roles. I’m mentioning this because
secret variable is used through the DebOps project and this change will
be significant - that’s why I want to do it right away instead of changing the
role suddenly some time down the line.
Previously debops.secret role created directory for secrets adjacent to the
Ansible inventory directory. Because it was assumed that inventories are kept
in the same directory, debops.secret automatically took the name of the
inventory directory and appended .secret suffix to it, making the resulting
directory inventory.secret/.
Now, because each DebOps project lives in its own directory, this feature is no
longer needed. Additionally in the current state secret directory is kind of
a show stopper, interfering for example with <Tab>-completion. Because of
that, I’m changing the “formula” to instead just use the secret/ directory
by default. It will be still created beside the inventory/ directory.
All DebOps scripts will be updated at the same time, and should work with new directory name. However, existing directories will need to be renamed manually, otherwise DebOps might create new certificates, passwords, etc.
inventory.secret directory becomes secret.
If you use debops-padlock script, then .encfs.inventory.secret
directory becomes .encfs.secret.
2014-09-21¶
Role updates¶
- debops.postfix has been cleaned up, all Ansible tasks have been rewritten
from “inline” syntax to YAML syntax. Task conditions have been rearranged,
now almost all of them can be found in
tasks/main.ymlfile instead of in the file that are included. - The way that Postfix configuration files (
main.cfandmaster.cf) are created by Ansible has been changed - instead of templating individual pieces on the remote servers and assembling them to finished files, configuration file templates are generated on Ansible Controller from parts included by Jinja and then templated on the servers as a whole. This makes the process much faster and easier to manage. - Postfix role has gained a new capability,
archive. If it’s enabled, each mail that passes through the SMTP server is blind carbon-copied to a separate archive mail account on local or remote SMTP server. This function is configured automatically by the role, but can be modified using inventory variables. Archive account and/or archive server need to be configured separately by the system administrator.
2014-09-19¶
Role updates¶
- debops.postfix role has gained support for SMTP client SASL authentication, in other words the ability to send mail through remote relay MX hosts with client authentication, like public or commercial SMTP servers. You can either configure one username/password pair for a specified relayhost, or enable sender dependent authentication and specify relayhost, user and password for each sender mail address separately. Passwords are never stored in the inventory; instead Postfix role uses debops.secret role to store user passwords securely.
2014-09-18¶
Role updates¶
- debops.kvm role has been cleaned up from old and unused code, tasks were
put in order and list of administrator accounts that should have access to
libvirtgroup changed name fromauth_admin_accountstokvm_admins(Ansible account is enabled automatically). - debops.lxc role has been updated with changes to the LXC 1.0.5 package from Debian Jessie (some package dependencies and build requirements were changed). You can read more in the lxc package changelog.
2014-09-17¶
Playbook updates¶
- You can now disable early APT cache update using
apt_update_cache_earlyvariable from debops.apt role. This is useful in rare case when your APT mirror suddenly catches fire, and you need to switch to a different one using Ansible.
Role updates¶
- debops.ferm role has gained new list variable,
ferm_ansible_controllers, which can be used to configure CIDR hostnames or networks that shouldn’t be blocked by ssh recent filter in the firewall. This is useful in case you don’t use DebOps playbook itself, which does that automatically. In addition, debops.ferm saves list of known Ansible Controllers using local Ansible facts, and uses it to enforce current configuration. - similar changes as above are now included in debops.tcpwrappers role, you
can specify a list of Ansible Controllers in
tcpwrappers_ansible_controllerslist variable. - Debian bug #718639 has been fixed which results in changes to several
configuration files, including
/etc/nginx/fastcgi_paramsand inclusion of a new configuration file/etc/nginx/fastcgi.conf. debops.nginx role will now check the version of installednginxserver and select correct file to include in PHP5-based server configuration.
2014-09-14¶
- Start of a new, separate changelog for DebOps playbooks and roles. This is a continuation of previous Changelog from ginas project.
- all DebOps roles have been moved to Ansible Galaxy and are now available
via
ansible-galaxyutility directly. You can also browse them on the DebOps Galaxy page
New roles¶
- debops.elasticsearch is a role written to manage Elasticsearch clusters, either standalone or on multiple hosts separated and configured using Ansible groups. Author: Nick Janetakis.
- debops.golang role can be used to install and manage Go language
environment. By default it will install packages present in the distribution,
but on Debian Wheezy a backport of
golangpackage from Debian Jessie can be automatically created and installed.
Role updates¶
- debops.ruby role has changed the way how different Ruby versions can be
selected for installation. By default,
ruby_version: 'apt'variable tells the role to install any Ruby packages available via APT (by default 1.9.3 version will be installed on most distributions). If you change the value ofruby_versionto'backport', a backported Ruby 2.1 packages will be created if not yet available, and installed. - Also in debops.ruby,
rubygems-integrationpackage is installed separately from other packages and can be disabled usingruby_gems_integration: Falsevariable (this option was required for backwards compatibility with Ubuntu 12.04 LTS (Precise Pangolin) distribution).