Add ansible deploy interface

this patch pulls the ansible deploy interface code
and related ansible playbooks and auxiliary files
from ironic-staging-drivers project into main ironic tree.

As discussed in the spec, the use of ramdisk callbacks
(lookup and hearbeats) is now mandatory with this deploy interface.
Playbooks and modules were updated to require Ansible>=2.4,
and custom Ansible module for executing 'parted' was replaced
with usage of built-in Ansible module.

The custom Ansible callback plugin now uses journald logger
by default to adapt to the default DevStack setup.

Documentation and devstack plugin changes enabling automated
testing of this interface will be proposed in followup patches.

Change-Id: I43f54688287953ccb1c2836437aea76236e6560b
Related-Bug: #1526308

1 files changed, 72 insertions, 0 deletions

diff --git a/etc/ironic/ironic.conf.sample b/etc/ironic/ironic.conf.sample
index 515d078d1..aae829d4c 100644
--- a/etc/ironic/ironic.conf.sample
+++ b/etc/ironic/ironic.conf.sample
@@ -813,6 +813,78 @@
 #deploy_logs_swift_days_to_expire = 30
 
 
+[ansible]
+
+#
+# From ironic
+#
+
+# Extra arguments to pass on every invocation of Ansible.
+# (string value)
+#ansible_extra_args = <None>
+
+# Set ansible verbosity level requested when invoking
+# "ansible-playbook" command. 4 includes detailed SSH session
+# logging. Default is 4 when global debug is enabled and 0
+# otherwise. (integer value)
+# Minimum value: 0
+# Maximum value: 4
+#verbosity = <None>
+
+# Path to "ansible-playbook" script. Default will search the
+# $PATH configured for user running ironic-conductor process.
+# Provide the full path when ansible-playbook is not in $PATH
+# or installed in not default location. (string value)
+#ansible_playbook_script = ansible-playbook
+
+# Path to directory with playbooks, roles and local inventory.
+# (string value)
+#playbooks_path = $pybasedir/drivers/modules/ansible/playbooks
+
+# Path to ansible configuration file. If set to empty, system
+# default will be used. (string value)
+#config_file_path = $pybasedir/drivers/modules/ansible/playbooks/ansible.cfg
+
+# Number of times to retry getting power state to check if
+# bare metal node has been powered off after a soft power off.
+# Value of 0 means do not retry on failure. (integer value)
+# Minimum value: 0
+#post_deploy_get_power_state_retries = 6
+
+# Amount of time (in seconds) to wait between polling power
+# state after trigger soft poweroff. (integer value)
+# Minimum value: 0
+#post_deploy_get_power_state_retry_interval = 5
+
+# Extra amount of memory in MiB expected to be consumed by
+# Ansible-related processes on the node. Affects decision
+# whether image will fit into RAM. (integer value)
+#extra_memory = 10
+
+# Skip verifying SSL connections to the image store when
+# downloading the image. Setting it to "True" is only
+# recommended for testing environments that use self-signed
+# certificates. (boolean value)
+#image_store_insecure = false
+
+# Specific CA bundle to use for validating SSL connections to
+# the image store. If not specified, CA available in the
+# ramdisk will be used. Is not used by default playbooks
+# included with the driver. Suitable for environments that use
+# self-signed certificates. (string value)
+#image_store_cafile = <None>
+
+# Client cert to use for SSL connections to image store. Is
+# not used by default playbooks included with the driver.
+# (string value)
+#image_store_certfile = <None>
+
+# Client key to use for SSL connections to image store. Is not
+# used by default playbooks included with the driver. (string
+# value)
+#image_store_keyfile = <None>
+
+
 [api]
 
 #