The use-case here is that based on information in the /proc/cmdline certain actions can be taken.
A practical example in our case is that we have a play at the end of the provisioning phase that reboots the system. Since we don't want to accidentally reboot a system (or restart the network) on a production machine, having a way to separate an Anaconda post-install (sshd in chroot) with a normal system is a good way to make that distinction.
---
- name: reboot
hosts: all
tasks:
- action: command init 6
only_if: "not '${ansible_cmdline.BOOT_IMAGE}'.startswith('$')"
A practical problem here is the fact that we cannot simply check whether it is set or empty:
---
- name: reboot
hosts: all
tasks:
- action: command init 6
only_if: "'${ansible_cmdline.BOOT_IMAGE}'"
If ansible_cmdline was a string, a simple only_if: "'${ansible_cmdline}'.find(' BOOT_IMAGE=')" was an option, but still not very "beautiful" :-/
This implementation uses shlex.split() and uses split(sep, maxsplit=1).
* Migraed easy_install, pip, service, setup, and user.
* Updated fail_json message in apt_repository
* Fixed easy_install to not hardcode location of virtualenv in
/usr/local/bin/.
* Made handling of virtualenv more consistent between easy_install and
pip.
If ip is not found in either /sbin or /usr/sbin, this will return
an empty result. It seems extremely unlikely that a linux system will
not have iproute2 installed
get_interfaces() updated to read /proc/net/dev. This means it no
longer provides only interfaces that are up.
get_iface_hwaddr() updated to read from /sys/class/net/<iface>/address.
Added get_interface_facts() to pull in mac address and interface mtu.
Can be used later for additional interface-facts.
Added get_ipv6_facts(), which reads from /proc/net/if_inet6.
get_network_facts() renamed to get_ipv4_facts(). It still calls
ifconfig to determine ipv4 facts.
The Facts class and subclasses no longer take a dict argument for
instantiation. populate() now returns self.facts.
Other changes:
- Facts.__init__() takes over most of the work from populate() so that
subclasses can benefit from its knowledge.
- Drop setting unknown facts to 'NA' in __init__() in various
subclasses.
- Check for presence of facts in get_virtual_facts()
- Update ansible_facts() to use facts.update(<classname>().populate())
This changes and organizes facts into a base class Facts and several
sub classes that implement the necessary functionality. The classes
are:
- Facts: base class. Implements basic facts that should be common to a
number of platforms. It is also where SSH keys and SELinux facts are
set.
- Hardware: A subclass of Facts that should be further
subclassed per platform for CPU, memory, and related facts.
- LinuxHardware: subclass of Hardware for Linux platforms
- SunOSHardware: subclass of Hardware for SunOS platforms
- FreeBSDHardware: subclass of Hardware for FreeBSD
- Network: A subclass of Facts that that should be further
subclassed per platform for IP, both IPv4 and IPv6, information.
- LinuxNetwork: Currently only implementation for determining network
facts.
- Virtual: A subclass of Facts that that should be further
subclassed per platform to determine virtual environment facts.
- LinuxVirtual: Currently only implementation for determining virtual
facts.
If facts are needed for additional platforms, one of the above classes
(eg Network) can be further subclassed and implement the necessary
functionality.
In addition, it fixes get_network_facts() to work on Fedora17. That
broke due to changes to ifconfig output.
