zuul: fix and update the jobs, port a legacy one

- port the legacy Tempest job to Zuul v3;
- remove the old py27* environment from the default
  tox list;
- remove the py27 job and add the py38 one (including
  the required tox environment);
- bump tox minversion so that ignore_basepython_conflict
  can be used;
- fix the compatibility with mysql 8 (no more user creation
  with the GRANT statement).

Change-Id: I87be8cb0857a2d83182b4943a11c8bc2191c4b1a

.zuul.yaml

@@ -1,37 +1,20 @@
 - project:
     templates:
       - docs-on-readthedocs
-      - openstack-python-jobs
       - openstack-python35-jobs
       - openstack-python36-jobs
+      - openstack-python38-jobs
     vars:
       rtd_webhook_id: '61274'
     check:
       jobs:
-        - sqlalchemy-migrate-tox-py27sa07
-        - sqlalchemy-migrate-devstack:
+        - sqlalchemy-migrate-tempest-full:
             voting: false
-    gate:
-      jobs:
-        - sqlalchemy-migrate-tox-py27sa07
 
 - job:
-    name: sqlalchemy-migrate-tox-py27sa07
-    parent: tox
-    description: |
-      Run tests for sqlalchemy-migrate project.
-
-      Uses tox with the ``py27sa07`` environment.
-    vars:
-      tox_envlist: py27sa07
-
-- job:
-    name: sqlalchemy-migrate-devstack
-    parent: legacy-dsvm-base
-    run: playbooks/sqlalchemy-migrate-devstack-dsvm/run.yaml
-    post-run: playbooks/sqlalchemy-migrate-devstack-dsvm/post.yaml
+    name: sqlalchemy-migrate-tempest-full
+    parent: tempest-full-py3
     timeout: 10800
     required-projects:
-      - openstack/devstack
-      - openstack/devstack-gate
-      - x/sqlalchemy-migrate
+      - opendev.org/openstack/tempest
+      - opendev.org/x/sqlalchemy-migrate

playbooks/sqlalchemy-migrate-devstack-dsvm/post.yaml

@@ -1,15 +0,0 @@
-- hosts: primary
-  tasks:
-
-    - name: Copy files from {{ ansible_user_dir }}/workspace/ on node
-      synchronize:
-        src: '{{ ansible_user_dir }}/workspace/'
-        dest: '{{ zuul.executor.log_root }}'
-        mode: pull
-        copy_links: true
-        verify_host: true
-        rsync_opts:
-          - --include=/logs/**
-          - --include=*/
-          - --exclude=*
-          - --prune-empty-dirs

playbooks/sqlalchemy-migrate-devstack-dsvm/run.yaml

@@ -1,49 +0,0 @@
-- hosts: all
-  name: Autoconverted job legacy-sqlalchemy-migrate-devstack-dsvm from old job gate-sqlalchemy-migrate-devstack-dsvm-nv
-  tasks:
-
-    - name: Ensure legacy workspace directory
-      file:
-        path: '{{ ansible_user_dir }}/workspace'
-        state: directory
-
-    - shell:
-        cmd: |
-          set -e
-          set -x
-          cat > clonemap.yaml << EOF
-          clonemap:
-            - name: openstack/devstack-gate
-              dest: devstack-gate
-          EOF
-          /usr/zuul-env/bin/zuul-cloner -m clonemap.yaml --cache-dir /opt/git \
-              https://opendev.org \
-              openstack/devstack-gate
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
-    - shell:
-        cmd: |
-          set -e
-          set -x
-          export PYTHONUNBUFFERED=true
-          export PROJECTS="x/sqlalchemy-migrate $PROJECTS"
-          export DEVSTACK_GATE_TEMPEST=1
-          export DEVSTACK_GATE_TEMPEST_FULL=1
-          export BRANCH_OVERRIDE=default
-          if [ "$BRANCH_OVERRIDE" != "default" ] ; then
-              export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
-          fi
-
-          function pre_test_hook {
-              cd /opt/stack/new/sqlalchemy-migrate
-              sudo -H pip install .
-          }
-          export -f pre_test_hook
-
-          cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
-          ./safe-devstack-vm-gate-wrap.sh
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'

tools/test-setup.sh

@@ -23,8 +23,8 @@ sudo -H mysqladmin -u root password $DB_ROOT_PW
 sudo -H mysql -u root -p$DB_ROOT_PW -h localhost -e "
     DELETE FROM mysql.user WHERE User='';
     FLUSH PRIVILEGES;
-    GRANT ALL PRIVILEGES ON *.*
-        TO '$DB_USER'@'%' identified by '$DB_PW' WITH GRANT OPTION;"
+    CREATE USER '$DB_USER'@'%' IDENTIFIED BY '$DB_PW';
+    GRANT ALL PRIVILEGES ON *.* TO '$DB_USER'@'%' WITH GRANT OPTION;"
 
 # Now create our database.
 mysql -u $DB_USER -p$DB_PW -h 127.0.0.1 -e "

tox.ini

@@ -1,7 +1,8 @@
 [tox]
-minversion = 1.6
+minversion = 3.1.1
 skipsdist = True
-envlist = py27,py27sa07,py27sa08,py27sa09,py33,py34,py35,py36,pep8
+envlist = py35,py36,py38,pep8
+ignore_basepython_conflict = True
 
 [testenv]
 usedevelop = True
@@ -48,6 +49,10 @@ deps = sqlalchemy>=0.9
 deps = sqlalchemy>=0.9
        -r{toxinidir}/test-requirements.txt
 
+[testenv:py38]
+deps = sqlalchemy>=0.9
+       -r{toxinidir}/test-requirements.txt
+
 [testenv:pep8]
 commands = flake8