Adds support to the agent to receive, store, and return
that token to ironic's API, when supported.

This feature allows ironic and ultimately the agent to
authenticate interactions, when supported, to prevent
malicious abuse of the API endpoint.

Sem-Ver: feature
Change-Id: I6db9117a38be946b785e6f5e75ada1bfdff560ba

Change-Id: I64e66682c1e54f6edc260a22f46f5f6df8e85af1
Story: 2005896
Task: 33756

Lookup/Heartbeat via vendor passthru was deprecated in Newton.

This patch removes the corresponding functionality from IPA,
and also removes handling of 'ipa-driver-name' kernel parameter,
as it was only used in code related to old passthru.

Change-Id: I2c7989063ab3e4c0bae33f05d6d2ed857a2d9944
Closes-Bug: #1640533

Use the namedtuple class to improve code readability by creating a Host
class with namedtuple to store the 'hostname' and 'port'

Replace foo[0] with foo.hostname, and foo[1] with foo.port to make code
more readable.

Change-Id: Ie2b5f9cf89e7ccbbcf0a2573dab6f6c5d14c018b

This patch moves the IPA oslo configs out of the agent cmd into their
own module so that it is safe to import them from other places in the
application without causing circular imports.

Change-Id: I100792bd0d1f369763afaa6f93e144e9967c3048

Some kernel modules take substantial time to initialize. For example,
with mpt2sas RAID driver inspection and deployment randomly fail
due to IPA starting before the driver finishes initialization.

As much as I hate it, the only way to guarantee that the hardware is
truely initalized is to wait for it. Apparently all hardware in Linux
is treated as hotplugged, so there is no such thing as "hardware
initialization is finished". Operators can add a sleep based on their
knowledge of their hardware.

The default behaviour remains the same.

Change-Id: I0446ae81d760dacaf31eea6ad9f9eaa098cf5e93
Partial-Bug: #1582797

We hoped that checking /sys/class/net/XXX/carrier will allow us
to not wait for interfaces that are not connected at all.
In reality this field turned out to be unreliable. For example, it is
also set to 0 when interface is down or is being configured.
The bug https://bugzilla.redhat.com/show_bug.cgi?id=1327255 shows
the case when carrier is 0 for all interfaces, including one that is
used to post back data, which is obvious non-sense.

This change removes check on carrier for the loop. To avoid 60 seconds
wait for people with several NIC's, it's changed to only wait for the
PXE booting NIC, which obviously must get an IP address.

This makes IP addresses in the inspection data for other NIC's somewhat
unreliable. A new option inspection_dhcp_all_interfaces is introduced
to allow waiting for all NIC's to get IP addresses.

This change should finally fix bug 1564954.

Change-Id: I8b04bf726980fdcf6bd536c6bb28e30ac50658fb
Related-Bug: #1564954

In the DIB build the DHCP code (provided by the dhcp-all-interfaces element)
races with the service starting IPA. It does not matter for deployment itself,
as we're waiting for the route to the Ironic API to appear. However, for
inspection it may result in reporting back all NIC's without IP addresses.
Inspection fails in this case.

This change makes inspection wait for *all* NIC's to get their IP addresses up
to a small timeout. The timeout is 60 seconds by default and can be changed
via the new ipa-inspection-dhcp-wait-timeout kernel option (0 to not wait).

After the wait inspection proceedes in any case, so the worst downside
is making inspection 60 seconds longer.

To avoid waiting for NIC's that are not even connected, this change extends the
NetworkInterface class with 'has_carrier' field.

Closes-Bug: #1564954
Change-Id: I5bf14de4c1c622f4bf6e3eadbe20c44759da5d66

Adds a new kernel option "ipa-debug" which can be set to "1" or "true" to
enable debug logging.

Change-Id: Iafe9a9b8b718280920005726e0f7e69e3f0a320c

Bring ironic-python-agent in line with the other ironic projects.

Stop ignoring all E12* errors except E129
Stop ignoring E711

Change-Id: Icb9bc198473d1b5e807c20869eb2af7f4d7ac360