Remove Centos-7 support

Ussuri is the last release that openstack-ansible supports Centos-7.
Remove support for Centos-7 for Victoria.

Depends-On: https://review.opendev.org/742166
Change-Id: I3e3cda925b9bf8361f2c3a8d6b2a226e50974001

Vagrantfile

@@ -31,8 +31,8 @@ Vagrant.configure(2) do |config|
          ./run_tests.sh
       SHELL
 
-  config.vm.define "centos7" do |centos7|
+  config.vm.define "centos8" do |centos8|
-    centos7.vm.box = "centos/7"
+    centos8.vm.box = "centos/8"
   end
 
   config.vm.define "debian8" do |debian8|

common-tasks/test-set-nodepool-vars.yml

@@ -40,23 +40,7 @@
         echo "nspawn_hosts_container_image_repo=${NODEPOOL_LXC_IMAGE_PROXY}"
 
         source /etc/os-release
-        if [[ $ID == 'centos' && VERSION_ID == '7' ]]; then
+        if [[ $ID == 'centos' && VERSION_ID == '8' ]]; then
-          echo "lxc_centos_package_baseurl=http://${NODEPOOL_MIRROR_HOST}:8080/copr-lxc2/epel-7-x86_64/"
-          echo "lxc_centos_package_key=http://${NODEPOOL_MIRROR_HOST}:8080/copr-lxc2/pubkey.gpg"
-
-          # NOTE(mnaser): We need to make sure we pull the latest RDO mirror
-          #               which is hashed to avoid cache going stale during CI.
-          # TODO(mnaser): Share this with Puppet
-          #               https://github.com/openstack/puppet-openstack-integration/blob/master/configure_facts.sh#L66-L71
-          export DLRN_BASE=${DLRN_BASE:-centos7-master/puppet-passed-ci}
-          rdo_dlrn=`curl --silent ${NODEPOOL_RDO_PROXY}/${DLRN_BASE}/delorean.repo | grep baseurl | cut -d= -f2`
-          if [[ -z "$rdo_dlrn" ]]; then
-              echo "Failed to parse dlrn hash"
-              exit 1
-          fi
-          RDO_MIRROR_HOST=${rdo_dlrn/https:\/\/trunk.rdoproject.org/$NODEPOOL_RDO_PROXY}
-          echo "openstack_hosts_rdo_repo_url=${RDO_MIRROR_HOST}"s
-        elif [[ $ID == 'centos' && VERSION_ID == '8' ]]; then
           echo "openstack_hosts_rdo_mirror_url=${NODEPOOL_RDO_PROXY}"
         fi
       args:

run_tests.sh

@@ -51,13 +51,10 @@ fi
 # Source distribution information
 source /etc/os-release || source /usr/lib/os-release
 
-# Prefer dnf over yum for CentOS.
-which dnf &>/dev/null && RHT_PKG_MGR='dnf' || RHT_PKG_MGR='yum'
-
 # Figure out the appropriate package install command
 case ${ID,,} in
     *suse*) pkg_mgr_cmd="zypper -n in" ;;
-    centos|rhel|fedora) pkg_mgr_cmd="${RHT_PKG_MGR} install -y" ;;
+    centos|rhel|fedora) pkg_mgr_cmd="dnf install -y" ;;
     ubuntu|debian) pkg_mgr_cmd="apt-get install -y" ;;
     # Gentoo needs to have version set since it's rolling
     gentoo) pkg_mgr_cmd="emerge --jobs=4"; VERSION="rolling" ;;

run_tests_common.sh

@@ -51,11 +51,7 @@ case "${ID,,}" in
         pkg_list="ca-certificates-mozilla python-devel python-xml lsb-release ${extra_suse_deps:-}"
         ;;
     amzn|centos|rhel)
-        # NOTE(jrosser) on centos7 we ensure that the distro version of virtualenv is present to avoid
+        pkg_list="python3-devel redhat-lsb-core"
-        # tox later installing virtualenv as a dependancy with pip, and breaking later tests with
-        # openstack_hosts which correctly install the python-virtualenv distro package
-        [[ "${VERSION_ID}" == "7" ]] && extra_redhat_deps="python-virtualenv"
-        pkg_list="python3-devel redhat-lsb-core yum-utils ${extra_redhat_deps:-}"
         ;;
     fedora)
         pkg_list="python3-devel redhat-lsb-core redhat-rpm-config yum-utils"
@@ -82,9 +78,7 @@ if ! which pip3 &>/dev/null; then
 fi
 
 # Install bindep and tox
-if [[ "${ID,,}" == "centos" ]] && [[ ${VERSION_ID} == "7" ]]; then
+if [[ "${ID,,}" == "centos" ]] && [[ ${VERSION_ID} == "8" ]]; then
-    sudo pip3 install 'bindep>=2.4.0' 'tox<=3.14.0'
-elif [[ "${ID,,}" == "centos" ]] && [[ ${VERSION_ID} == "8" ]]; then
     sudo alternatives --set python /usr/bin/python3
     sudo pip3 install 'bindep>=2.4.0' tox
 else
@@ -110,7 +104,7 @@ if [[ ${#BINDEP_PKGS} > 0 ]]; then
             sudo zypper -n in ${BINDEP_PKGS}
             ;;
         centos|fedora)
-            sudo "${RHT_PKG_MGR}" install -y ${BINDEP_PKGS}
+            sudo dnf install -y ${BINDEP_PKGS}
             ;;
         ubuntu|debian)
             sudo apt-get update

test-ansible-functional.sh

@@ -84,26 +84,7 @@ function execute_ansible_playbook {
 }
 
 ## Main ----------------------------------------------------------------------
-
-# NOTE(mhayden): CentOS images in the gate have several slow mirrors enabled
-# by default. This step ensures that only the base and updates
-# repositories are enabled.
-#
-# NOTE(logan): Due to the way Ansible's yum module works, we should leave all
-# except these two repos globally disabled. See the link below for more info:
-# https://github.com/ansible/ansible/issues/26995#issuecomment-392288700
-#
-# Rather than enabling repos globally, we can use the yum repository module to
-# selectively pull in packages from other repos (ie. extras, EPEL, RDO, etc.)
-# on an as-needed basis in the roles where they are required using includepkgs.
-# See the example here:
-# https://opendev.org/openstack/openstack-ansible-lxc_hosts/src/commit/a6cae27fa3e6d03b48ba34468df4af90c77f4880/tasks/lxc_install_yum.yml#L46-L58
 source /etc/os-release
-if [[ -x /usr/bin/yum-config-manager ]] && [[ -e /etc/centos-release ]] && [[ ${VERSION_ID} == '7' ]] ; then
-  sudo yum-config-manager --disable \* > /dev/null
-  sudo yum-config-manager --enable base > /dev/null
-  sudo yum-config-manager --enable updates > /dev/null
-fi
 
 # Check if SELinux is present and which mode is currently set.
 if [[ -x /usr/sbin/getenforce ]]; then
@@ -113,10 +94,10 @@ else
 fi
 echo "Current SELinux status: ${SELINUX_STATUS}"
 
-# NOTE(mhayden): SELinux policies for CentOS 7 are still incomplete. Ensure
+# NOTE(mhayden): SELinux policies for CentOS are still incomplete. Ensure
 # SELinux is not in enforcing mode during tests.
 if [ "${SELINUX_STATUS}" == "Enforcing" ]; then
-  echo "NOTE: CentOS 7 SELinux policies are incomplete."
+  echo "NOTE: CentOS SELinux policies are incomplete."
   echo "Switching SELinux mode from Enforcing to Permissive."
   sudo /usr/sbin/setenforce 0
 fi

zuul.d/jobs.yaml

@@ -173,25 +173,20 @@
     vars:
       tox_env: distro_install
 
-- job:
-    name: openstack-ansible-functional-centos-7
-    parent: openstack-ansible-functional
-    nodeset: centos-7
-
 - job:
     name: openstack-ansible-functional-centos-8
     parent: openstack-ansible-functional
     nodeset: centos-8
 
 - job:
-    name: openstack-ansible-upgrade-centos-7
+    name: openstack-ansible-upgrade-centos-8
     parent: openstack-ansible-upgrade
-    nodeset: centos-7
+    nodeset: centos-8
 
 - job:
-    name: openstack-ansible-functional-distro_install-centos-7
+    name: openstack-ansible-functional-distro_install-centos-8
     parent: openstack-ansible-functional
-    nodeset: centos-7
+    nodeset: centos-8
     vars:
       tox_env: distro_install
 

zuul.d/project-templates.yaml

@@ -14,7 +14,6 @@
       jobs:
         - openstack-ansible-linters
         - openstack-ansible-functional-debian-buster
-        - openstack-ansible-functional-centos-7
         - openstack-ansible-functional-centos-8
         - openstack-ansible-functional-ubuntu-bionic
         - openstack-ansible-functional-ubuntu-focal
@@ -22,7 +21,6 @@
       jobs:
         - openstack-ansible-linters
         - openstack-ansible-functional-debian-buster
-        - openstack-ansible-functional-centos-7
         - openstack-ansible-functional-ubuntu-bionic
     experimental:
       jobs:
@@ -34,12 +32,10 @@
     name: openstack-ansible-upgrade
     check:
       jobs:
-        - openstack-ansible-upgrade-centos-7
         - openstack-ansible-upgrade-ubuntu-bionic
     gate:
       jobs:
-        - openstack-ansible-upgrade-centos-7
+        - openstack-ansible-upgrade-ubuntu-bionic
-          openstack-ansible-upgrade-ubuntu-bionic
     experimental:
       jobs:
         - openstack-ansible-upgrade-opensuse-15
@@ -49,10 +45,10 @@
     name: openstack-ansible-role-distro_install-jobs
     check:
       jobs:
-        - openstack-ansible-functional-distro_install-centos-7
+        - openstack-ansible-functional-distro_install-centos-8
     gate:
       jobs:
-        - openstack-ansible-functional-distro_install-centos-7
+        - openstack-ansible-functional-distro_install-centos-8
     experimental:
       jobs:
         # NOTE(hwoarang) SUSE and Ubuntu distro jobs remain non-voting