CI: Remove centos-7 jobs

CentOS 7 will go EOL later this year, and infra wants to drop the nodes
soon-ish -- don't make them wait on our account.

The only major loss is py2 probe tests, but officially, yoga was the
last release we pledged to support py2.

Change-Id: I8f6c247c21f16aa4717569cc69308f846c6a0245

.zuul.yaml

@@ -28,14 +28,6 @@
       python_version: 2.7
     post-run: tools/playbooks/common/cover-post.yaml
 
-- job:
-    name: swift-tox-py27-centos-7
-    parent: openstack-tox-py27
-    nodeset: centos-7
-    vars:
-      tox_environment:
-        TMPDIR: '{{ ansible_env.HOME }}/xfstmp'
-
 - job:
     name: swift-tox-py36
     parent: swift-tox-base
@@ -250,12 +242,6 @@
     vars:
       tox_envlist: func-ec-py3
 
-- job:
-    name: swift-tox-func-py27-centos-7
-    parent: swift-tox-py27-centos-7
-    vars:
-      tox_envlist: func
-
 - job:
     name: swift-tox-func-encryption-py27
     parent: swift-tox-func-py27
@@ -268,12 +254,6 @@
     vars:
       tox_envlist: func-encryption
 
-- job:
-    name: swift-tox-func-encryption-py27-centos-7
-    parent: swift-tox-func-py27-centos-7
-    vars:
-      tox_envlist: func-encryption
-
 - job:
     name: swift-tox-func-ec-py27
     parent: swift-tox-func-py27
@@ -286,12 +266,6 @@
     vars:
       tox_envlist: func-ec
 
-- job:
-    name: swift-tox-func-ec-py27-centos-7
-    parent: swift-tox-func-py27-centos-7
-    vars:
-      tox_envlist: func-ec
-
 - job:
     name: swift-dsvm-functional
     parent: devstack-minimal
@@ -373,22 +347,6 @@
     post-run:
       - tools/playbooks/probetests/post.yaml
 
-- job:
-    name: swift-probetests-centos-7
-    parent: swift-probetests-centos-8-stream
-    nodeset: centos-7
-    description: |
-      Setup a SAIO dev environment and run Swift's probe tests
-      under Python 2.
-    vars:
-      bindep_profile: test py27
-      ensure_pip_from_packages: False
-      ensure_pip_from_packages_with_python2: False
-      ensure_pip_from_upstream: True
-      ensure_pip_from_upstream_interpreters:
-        - python2
-      ensure_pip_from_upstream_url: "https://bootstrap.pypa.io/pip/2.7/get-pip.py"
-
 - job:
     name: swift-probetests-centos-8-stream
     parent: unittests
@@ -757,15 +715,13 @@
               - ^doc/(requirements.txt|(manpages|s3api|source)/.*)$
               - ^test/(cors|unit|functional|probe)/.*$
               - ^(.gitreview|.mailmap|AUTHORS|CHANGELOG|.*\.rst)$
-        - swift-probetests-centos-7:
+        - swift-probetests-centos-8-stream:
             irrelevant-files: &probetest-irrelevant-files
               - ^(api-ref|releasenotes)/.*$
               # Keep doc/saio -- we use those sample configs in the saio playbooks
               - ^doc/(requirements.txt|(manpages|s3api|source)/.*)$
               - ^test/(cors|unit|functional|s3api)/.*$
               - ^(.gitreview|.mailmap|AUTHORS|CHANGELOG|.*\.rst)$
-        - swift-probetests-centos-8-stream:
-            irrelevant-files: *probetest-irrelevant-files
         - swift-dsvm-functional:
             irrelevant-files: *functest-irrelevant-files
         - swift-dsvm-functional-ipv6:
@@ -816,8 +772,6 @@
         - swift-tox-func-ec-py38
         - swift-func-cors
         - swift-tox-func-s3api-tests-tempauth
-        - swift-probetests-centos-7:
-            irrelevant-files: *probetest-irrelevant-files
         - swift-probetests-centos-8-stream:
             irrelevant-files: *probetest-irrelevant-files
         - swift-dsvm-functional:
@@ -842,10 +796,6 @@
       jobs:
         - swift-tox-py37
         - swift-tox-py38
-        - swift-tox-py27-centos-7
-        - swift-tox-func-py27-centos-7
-        - swift-tox-func-encryption-py27-centos-7
-        - swift-tox-func-ec-py27-centos-7
         - swift-tox-py36-centos-8-stream
         - swift-tox-func-py39-centos-9-stream
         - swift-tox-func-encryption-py39-centos-9-stream

tools/playbooks/common/install_dependencies.yaml

@@ -17,11 +17,9 @@
   roles:
     - ensure-pip
   tasks:
-    - name: upgrade pip, but not too far
+    - name: upgrade pip
       pip:
-        # 20.* works on both py2 and py3, and the pip for centos7 in EPEL
+        name: pip
-        # isn't smart enough to prevent us upgrading to 21+
-        name: pip<21
         extra_args: --upgrade
 
     - name: install rsync-daemon - CentOS 8
@@ -35,27 +33,11 @@
     - name: install python modules with pip
       pip: name={{ item }} state=present extra_args='--upgrade'
       with_items:
-        # For some reason, pip on py2 isn't smart enough to prevent us
+        - mock
-        # trying to install a too-new mock or attrs??
+        - crudini
-        - 'mock<4'
-        - 'attrs<22.1.0'
-        # crudini pulls in iniparse which can conflict with distro-installed
-        # packages on centos7
-        - 'crudini<0.9.4'
-        # Order matters; install constrained versions *first*, then unconstrained
         - eventlet
         - pyeclib
         - pytest
         - pytest-cov
         - python-swiftclient
         - 'boto3>=1.9'
-
-    - name: install PasteDeploy - CentOS 7
-      pip: name={{ item }} state=present extra_args='--upgrade'
-      with_items:
-        # py2_constraints won't be obeyed by pip install swift
-        - 'PasteDeploy==2.1.1'
-        - 'python-dateutil==2.8.2'
-      when:
-        - ansible_facts['distribution'] == "CentOS"
-        - ansible_facts['distribution_major_version'] == "7"

tools/test-setup.sh

@@ -15,11 +15,6 @@ sudo chmod 777 $HOME/xfstmp
 
 # Install liberasurecode-devel for CentOS from RDO repository.
 
-function is_rhel7 {
-    [ -f /usr/bin/yum ] && \
-        cat /etc/*release | grep -q -e "Red Hat" -e "CentOS" -e "CloudLinux" && \
-        cat /etc/*release | grep -q 'release 7'
-}
 function is_rhel8 {
     [ -f /usr/bin/dnf ] && \
         cat /etc/*release | grep -q -e "Red Hat" -e "CentOS" -e "CloudLinux" && \
@@ -32,13 +27,6 @@ function is_rhel9 {
 }
 
 
-if is_rhel7; then
-    # Install CentOS OpenStack repos so that we have access to some extra
-    # packages.
-    sudo yum install -y centos-release-openstack-rocky
-    sudo yum install -y liberasurecode-devel
-fi
-
 if is_rhel8; then
     # Install CentOS OpenStack repos so that we have access to some extra
     # packages.