CI: Run ceph and rolling upgrade tests under py3

As part of that, the ceph test runner needed up-rev'ing to run under
py3. As a result, the known-failures shifted.

Trim the on-demand rolling upgrade jobs list -- now that it's running
py3, we only expect it to pass for train and beyond.

Also, pin smmap version on py2 -- otherwise, the remaining experimental
jobs running on centos-7 fail.

Change-Id: Ibe46aecf0f4461be59eb206bfe9063cc1bfff706

tools/playbooks/ceph-s3tests/run.yaml

@@ -28,11 +28,16 @@
           repo: "https://github.com/tipabu/s3compat.git"
           dest: "{{ ansible_env.HOME }}/s3compat"
 
+    - name: Install virtualenv
+      pip:
+        name: virtualenv
+      become: true
+
     - name: Install s3compat requirements
       pip:
           requirements: "{{ ansible_env.HOME }}/s3compat/requirements.txt"
           virtualenv: "{{ ansible_env.HOME }}/venv"
-          virtualenv_python: python2
+          virtualenv_python: python3
       become: true
 
     - name: Run s3compat tests

tools/playbooks/multinode_setup/make_rings.yaml

@@ -33,7 +33,7 @@
 
     - name: build swift
       shell:
-        cmd: python setup.py sdist
+        cmd: python3 setup.py sdist
         executable: /bin/bash
         chdir: '{{ zuul.project.src_dir }}'
 

tools/playbooks/multinode_setup/pre.yaml

@@ -2,7 +2,6 @@
   roles:
     # Run bindep and test-setup after devstack so that they won't interfere
     - role: bindep
-      bindep_profile: test
       bindep_dir: "{{ zuul_work_dir }}"
     - test-setup
     - ensure-tox

tools/playbooks/multinode_setup/run.yaml

@@ -22,7 +22,7 @@
     - name: install swift
       become: true
       shell:
-        cmd: python setup.py develop
+        cmd: python3 setup.py develop
         executable: /bin/bash
         chdir: '{{ zuul.project.src_dir }}'
 
@@ -37,6 +37,6 @@
       include_role:
         name: tox
       vars:
-        tox_envlist: func
+        tox_envlist: func-py3
         tox_environment:
           SWIFT_TEST_CONFIG_FILE: /home/{{ ansible_ssh_user }}/test.conf