Use adapters for inspectorclient

Inspector-client is a bit lacking behind other clients, as it does not
have Adapter-based SessionClient and thus does not support all
adapter-related options.
That's why we construct a session and an adapter from config section,
use adapter to resolve inspector API from service catalog
(or return the fixed endpoint_override one)
and then pass the session and inspector API endpoint to client.

This patch also deprecates `[inspector]service_url` in favor of
`[inspector]endpoint_override`.

As a side-effect, addressig inspector service now supports both regions
and interfaces to specify entry in service catalog.

Also, inspectorclient calls are now being made with the user token
(wrapped with a service token) when there is a token in the task's
request context.

Change-Id: I21836e712fa9764468ac2654525554b5b4f03741
Partial-Bug: #1699547

1 files changed, 43 insertions, 2 deletions

diff --git a/etc/ironic/ironic.conf.sample b/etc/ironic/ironic.conf.sample
index 99f1fed87..a384d7ec9 100644
--- a/etc/ironic/ironic.conf.sample
+++ b/etc/ironic/ironic.conf.sample
@@ -1895,12 +1895,28 @@
 # fake_inspector driver. (boolean value)
 #enabled = false
 
+# Always use this endpoint URL for requests for this client.
+# (string value)
+#endpoint_override = <None>
+
 # Verify HTTPS connections. (boolean value)
 #insecure = false
 
 # PEM encoded client certificate key file (string value)
 #keyfile = <None>
 
+# The maximum major version of a given API, intended to be
+# used as the upper bound of a range with min_version.
+# Mutually exclusive with version. (string value)
+#max_version = <None>
+
+# The minimum major version of a given API, intended to be
+# used as the lower bound of a range with max_version.
+# Mutually exclusive with version. If min_version is given
+# with no max_version it is as if max version is "latest".
+# (string value)
+#min_version = <None>
+
 # User's password (string value)
 #password = <None>
 
@@ -1918,8 +1934,24 @@
 # Deprecated group/name - [inspector]/tenant_name
 #project_name = <None>
 
-# ironic-inspector HTTP endpoint. If this is not set, the
-# service catalog will be used. (string value)
+# The default region_name for endpoint URL discovery. (string
+# value)
+#region_name = <None>
+
+# The default service_name for endpoint URL discovery. (string
+# value)
+#service_name = <None>
+
+# The default service_type for endpoint URL discovery. (string
+# value)
+#service_type = baremetal-introspection
+
+# DEPRECATED: ironic-inspector HTTP endpoint. If this is not
+# set, the service catalog will be used. (string value)
+# This option is deprecated for removal.
+# Its value may be silently ignored in the future.
+# Reason: Use [inspector]/endpoint_override option instead to
+# set a specific ironic-inspector API URL to connect to.
 #service_url = <None>
 
 # period (in seconds) to check status of nodes on inspection
@@ -1951,6 +1983,15 @@
 # Deprecated group/name - [inspector]/user_name
 #username = <None>
 
+# List of interfaces, in order of preference, for endpoint
+# URL. (list value)
+#valid_interfaces = internal,public
+
+# Minimum Major API version within a given Major API version
+# for endpoint URL discovery. Mutually exclusive with
+# min_version and max_version (string value)
+#version = <None>
+
 
 [ipmi]