Update (git|review).openstack.org links to opendev

This updates links going to git.openstack.org and review.openstack.org
to go to their respective opendev locations to avoid redirects.

Change-Id: I78e3bb5303718962f591117f9c0ee11f2314b128
Closes-Bug: #1833256
diff --git a/doc/source/guides/devstack-with-lbaas-v2.rst b/doc/source/guides/devstack-with-lbaas-v2.rst
index db138ae..07a9bb3 100644
--- a/doc/source/guides/devstack-with-lbaas-v2.rst
+++ b/doc/source/guides/devstack-with-lbaas-v2.rst
@@ -19,7 +19,7 @@
 
 ::
 
-    git clone https://git.openstack.org/openstack-dev/devstack
+    git clone https://opendev.org/openstack/devstack
     cd devstack/tools
     sudo ./create-stack-user.sh
     cd ../..
@@ -35,9 +35,9 @@
 ::
 
     [[local|localrc]]
-    enable_plugin octavia https://git.openstack.org/openstack/octavia
+    enable_plugin octavia https://opendev.org/openstack/octavia
     # If you are enabling horizon, include the octavia dashboard
-    # enable_plugin octavia-dashboard https://git.openstack.org/openstack/octavia-dashboard.git
+    # enable_plugin octavia-dashboard https://opendev.org/openstack/octavia-dashboard.git
     # If you are enabling barbican for TLS offload in Octavia, include it here.
     # enable_plugin barbican https://github.com/openstack/barbican.git
 
diff --git a/doc/source/guides/lxc.rst b/doc/source/guides/lxc.rst
index 9549ed2..dcaa416 100644
--- a/doc/source/guides/lxc.rst
+++ b/doc/source/guides/lxc.rst
@@ -105,7 +105,7 @@
 
    ::
 
-       git clone https://git.openstack.org/openstack-dev/devstack
+       git clone https://opendev.org/openstack/devstack
 
 #. Configure
 
diff --git a/doc/source/guides/multinode-lab.rst b/doc/source/guides/multinode-lab.rst
index 3c4acc8..15f02a0 100644
--- a/doc/source/guides/multinode-lab.rst
+++ b/doc/source/guides/multinode-lab.rst
@@ -103,7 +103,7 @@
 
 ::
 
-    git clone https://git.openstack.org/openstack-dev/devstack
+    git clone https://opendev.org/openstack/devstack
     cd devstack
 
 Up to this point all of the steps apply to each node in the cluster.
diff --git a/doc/source/guides/neutron.rst b/doc/source/guides/neutron.rst
index 80b2f85..2c25a1c 100644
--- a/doc/source/guides/neutron.rst
+++ b/doc/source/guides/neutron.rst
@@ -567,7 +567,7 @@
     Q_ML2_PLUGIN_MECHANISM_DRIVERS=macvtap
     Q_USE_PROVIDER_NETWORKING=True
 
-    enable_plugin neutron https://git.openstack.org/openstack/neutron
+    enable_plugin neutron https://opendev.org/openstack/neutron
 
     ## MacVTap agent options
     Q_AGENT=macvtap
@@ -622,7 +622,7 @@
 
     # Services that a compute node runs
     disable_all_services
-    enable_plugin neutron https://git.openstack.org/openstack/neutron
+    enable_plugin neutron https://opendev.org/openstack/neutron
     ENABLED_SERVICES+=n-cpu,q-agt
 
     ## MacVTap agent options
diff --git a/doc/source/guides/nova.rst b/doc/source/guides/nova.rst
index 65491d1..2271e23 100644
--- a/doc/source/guides/nova.rst
+++ b/doc/source/guides/nova.rst
@@ -83,7 +83,7 @@
 compute API but is good enough for most API testing, and is also used within
 the nova functional tests themselves so is fairly robust.
 
-.. _fake virt driver: http://git.openstack.org/cgit/openstack/nova/tree/nova/virt/fake.py
+.. _fake virt driver: https://opendev.org/openstack/nova/src/branch/master/nova/virt/fake.py
 
 Configuration
 -------------
diff --git a/doc/source/guides/single-machine.rst b/doc/source/guides/single-machine.rst
index cfbd6b1..a0e97ed 100644
--- a/doc/source/guides/single-machine.rst
+++ b/doc/source/guides/single-machine.rst
@@ -74,7 +74,7 @@
 .. code-block:: console
 
     $ sudo apt-get install git -y || sudo yum install -y git
-    $ git clone https://git.openstack.org/openstack-dev/devstack
+    $ git clone https://opendev.org/openstack/devstack
     $ cd devstack
 
 Run DevStack
diff --git a/doc/source/guides/single-vm.rst b/doc/source/guides/single-vm.rst
index 45b8f2d..8ebf2a6 100644
--- a/doc/source/guides/single-vm.rst
+++ b/doc/source/guides/single-vm.rst
@@ -60,7 +60,7 @@
             DEBIAN_FRONTEND=noninteractive sudo apt-get install -qqy git || sudo yum install -qy git
             sudo chown stack:stack /home/stack
             cd /home/stack
-            git clone https://git.openstack.org/openstack-dev/devstack
+            git clone https://opendev.org/openstack/devstack
             cd devstack
             echo '[[local|localrc]]' > local.conf
             echo ADMIN_PASSWORD=password >> local.conf