List the Stein cycle signing key as current

This sets the end date for the Rocky key, adds the Stein key
starting today and links to a minimal export of the corresponding
public key and its details on the keyserver network. The key
material change (Depends-On below) merged and went into effect
2018-09-05.

Change-Id: Ia345d6264528e069a1b3e61b88f616f9e9389438
Depends-On: https://review.openstack.org/599092

doc/source/index.rst

@@ -96,8 +96,10 @@ date ranges during which each key was in general use.
   `key 0xc96bfb160752606daa0de2fa05eb5792c876df9a`_ (details__)
 * 2017-09-15..2018-03-19 (Queens Cycle key):
   `key 0x4c8b8b5a694f612544b3b4bac52f01a3fbdb9949`_ (details__)
-* 2018-03-19..present (Rocky Cycle key):
+* 2018-03-19..2018-09-05 (Rocky Cycle key):
   `key 0xc31292066be772022438222c184fd3e1edf21a78`_ (details__)
+* 2018-09-05..present (Stein Cycle key):
+  `key 0xd47bab1b7dc2e262a4f6171e8b1b03fd54e2ac07`_ (details__)
 
 .. Static key files are generated with the following command:
    ( gpg2 --fingerprint 0x80fcce3dc49bd7836fc2464664dbb05acc5e7c28
@@ -114,6 +116,8 @@ date ranges during which each key was in general use.
 .. __: https://sks-keyservers.net/pks/lookup?op=vindex&search=0x4c8b8b5a694f612544b3b4bac52f01a3fbdb9949&fingerprint=on
 .. _`key 0xc31292066be772022438222c184fd3e1edf21a78`: _static/0xc31292066be772022438222c184fd3e1edf21a78.txt
 .. __: https://sks-keyservers.net/pks/lookup?op=vindex&search=0xc31292066be772022438222c184fd3e1edf21a78&fingerprint=on
+.. _`key 0xd47bab1b7dc2e262a4f6171e8b1b03fd54e2ac07`: _static/0xd47bab1b7dc2e262a4f6171e8b1b03fd54e2ac07.txt
+.. __: https://sks-keyservers.net/pks/lookup?op=vindex&search=0xd47bab1b7dc2e262a4f6171e8b1b03fd54e2ac07&fingerprint=on
 
 .. _`centrally-managed OpenPGP keys`: https://docs.openstack.org/infra/system-config/signing.html
 .. _`OpenStack Infrastructure team`: https://governance.openstack.org/tc/reference/projects/infrastructure.html

doc/source/static/0x27023b1ffccd8e3ae9a5ce95d943d5d270273ada.txt

@@ -0,0 +1,74 @@
+pub   rsa3072/0xD943D5D270273ADA 2018-08-28 [SC] [expires: 2019-06-24]
+      Key fingerprint = 2702 3B1F FCCD 8E3A E9A5  CE95 D943 D5D2 7027 3ADA
+uid                   [  full  ] OpenStack Infra (Stein Cycle) <infra-root@openstack.org>
+sub   rsa3072/0x84EDC131431C284F 2018-08-28 [E] [expires: 2019-06-24]
+sub   rsa3072/0x1A541148054E9E38 2018-08-28 [S]
+
+-----BEGIN PGP PUBLIC KEY BLOCK-----
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+-----END PGP PUBLIC KEY BLOCK-----