Add openEuler 22.03 LTS support

openEuler 20.03 LTS SP2 support was removed from devstack in last
few months due to its python version is too old and the CI job
always fail. And openEuler 20.03 LTS SP2 was out of maintainer in May
2022 by openEuler community.

The newest LTS version was released in March 2022 called 22.03 LTS.
This release will be maintained for at least 2 years. And the python
version is 3.9 which works well for devstack.

This Patch add the openEuler distro support back. And add the related
CI job to make sure its works well.

Change-Id: I99c99d08b4a44d3dc644bd2e56b5ae7f7ee44210

.zuul.yaml

@@ -108,6 +108,16 @@
         nodes:
           - controller
 
+- nodeset:
+    name: devstack-single-node-openeuler-22.03
+    nodes:
+      - name: controller
+        label: openEuler-22-03-LTS
+    groups:
+      - name: tempest
+        nodes:
+          - controller
+
 - nodeset:
     name: openstack-two-node
     nodes:
@@ -777,6 +787,62 @@
           # Enable Neutron ML2/OVS services
           q-agt: true
 
+- job:
+    name: devstack-platform-openEuler-22.03-ovn-source
+    parent: tempest-full-py3
+    description: openEuler 22.03 LTS platform test (OVN)
+    nodeset: devstack-single-node-openeuler-22.03
+    voting: false
+    timeout: 9000
+    vars:
+      configure_swap_size: 4096
+      devstack_localrc:
+        # NOTE(wxy):  OVN package is not supported by openEuler yet. Build it
+        # from source instead.
+        OVN_BUILD_FROM_SOURCE: True
+        OVN_BRANCH: "v21.06.0"
+        OVS_BRANCH: "a4b04276ab5934d087669ff2d191a23931335c87"
+        OVS_SYSCONFDIR: "/usr/local/etc/openvswitch"
+
+- job:
+    name: devstack-platform-openEuler-22.03-ovs
+    parent: tempest-full-py3
+    description: openEuler 22.03 LTS platform test (OVS)
+    nodeset: devstack-single-node-openeuler-22.03
+    voting: false
+    timeout: 9000
+    vars:
+      configure_swap_size: 8192
+      devstack_localrc:
+        Q_AGENT: openvswitch
+        Q_ML2_PLUGIN_MECHANISM_DRIVERS: openvswitch
+        Q_ML2_TENANT_NETWORK_TYPE: vxlan
+      devstack_services:
+        # Disable OVN services
+        ovn-northd: false
+        ovn-controller: false
+        ovs-vswitchd: false
+        ovsdb-server: false
+        # Disable Neutron ML2/OVN services
+        q-ovn-metadata-agent: false
+        # Enable Neutron ML2/OVS services
+        q-agt: true
+        q-dhcp: true
+        q-l3: true
+        q-meta: true
+        q-metering: true
+    group-vars:
+      subnode:
+        devstack_services:
+          # Disable OVN services
+          ovn-controller: false
+          ovs-vswitchd: false
+          ovsdb-server: false
+          # Disable Neutron ML2/OVN services
+          q-ovn-metadata-agent: false
+          # Enable Neutron ML2/OVS services
+          q-agt: true
+
 - job:
     name: devstack-no-tls-proxy
     parent: tempest-full-py3
@@ -885,6 +951,8 @@
         - devstack-platform-ubuntu-focal
         - devstack-platform-ubuntu-jammy-ovn-source
         - devstack-platform-ubuntu-jammy-ovs
+        - devstack-platform-openEuler-22.03-ovn-source
+        - devstack-platform-openEuler-22.03-ovs
         - devstack-multinode
         - devstack-unit-tests
         - openstack-tox-bashate
@@ -1017,3 +1085,7 @@
     periodic:
       jobs:
         - devstack-no-tls-proxy
+    periodic-weekly:
+      jobs:
+        - devstack-platform-openEuler-22.03-ovn-source
+        - devstack-platform-openEuler-22.03-ovs

doc/source/index.rst

@@ -38,7 +38,8 @@ Install Linux
 
 Start with a clean and minimal install of a Linux system. DevStack
 attempts to support the two latest LTS releases of Ubuntu, the
-latest/current Fedora version, CentOS/RHEL/Rocky Linux 9 and OpenSUSE.
+latest/current Fedora version, CentOS/RHEL/Rocky Linux 9, OpenSUSE and
+openEuler.
 
 If you do not have a preference, Ubuntu 22.04 (Jammy) is the
 most tested, and will probably go the smoothest.

files/rpms/ceph

@@ -1,3 +1,3 @@
 ceph    # NOPRIME
-redhat-lsb-core # not:rhel9
+redhat-lsb-core # not:rhel9,openEuler-22.03
 xfsprogs

files/rpms/general

@@ -26,9 +26,9 @@ pkgconfig
 postgresql-devel  # psycopg2
 psmisc
 python3-devel
-python3-pip
+python3-pip # not:openEuler-22.03
 python3-systemd
-redhat-rpm-config # missing dep for gcc hardening flags, see rhbz#1217376
+redhat-rpm-config # not:openEuler-22.03  missing dep for gcc hardening flags, see rhbz#1217376
 tar
 tcpdump
 unzip

files/rpms/nova

@@ -4,7 +4,7 @@ ebtables
 genisoimage # not:rhel9 required for config_drive
 iptables
 iputils
-kernel-modules
+kernel-modules # not:openEuler-22.03
 kpartx
 parted
 polkit

functions-common

@@ -399,7 +399,7 @@ function _ensure_lsb_release {
     elif [[ -x $(command -v zypper 2>/dev/null) ]]; then
         sudo zypper -n install lsb-release
     elif [[ -x $(command -v dnf 2>/dev/null) ]]; then
-        sudo dnf install -y redhat-lsb-core
+        sudo dnf install -y redhat-lsb-core || sudo dnf install -y openeuler-lsb
     else
         die $LINENO "Unable to find or auto-install lsb_release"
     fi
@@ -474,6 +474,8 @@ function GetDistro {
         # Drop the . release as we assume it's compatible
         # XXX re-evaluate when we get RHEL10
         DISTRO="rhel${os_RELEASE::1}"
+    elif [[ "$os_VENDOR" =~ (openEuler) ]]; then
+        DISTRO="openEuler-$os_RELEASE"
     else
         # We can't make a good choice here.  Setting a sensible DISTRO
         # is part of the problem, but not the major issue -- we really
@@ -525,6 +527,7 @@ function is_fedora {
     fi
 
     [ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || \
+        [ "$os_VENDOR" = "openEuler" ] || \
         [ "$os_VENDOR" = "RedHatEnterpriseServer" ] || \
         [ "$os_VENDOR" = "RedHatEnterprise" ] || \
         [ "$os_VENDOR" = "Rocky" ] || \
@@ -575,6 +578,14 @@ function is_ubuntu {
     [ "$os_PACKAGE" = "deb" ]
 }
 
+# Determine if current distribution is an openEuler distribution
+# is_openeuler
+function is_openeuler {
+    if [[ -z "$os_PACKAGE" ]]; then
+        GetOSVersion
+    fi
+    [ "$os_VENDOR" = "openEuler" ]
+}
 # Git Functions
 # =============
 

lib/apache

@@ -95,7 +95,7 @@ function install_apache_uwsgi {
     # didn't fix Python 3.10 compatibility before release.  Should be
     # fixed in uwsgi 4.9.0; can remove this when packages available
     # or we drop this release
-    elif is_fedora && ! [[ $DISTRO =~ f36 ]]; then
+    elif is_fedora && ! is_openeuler && ! [[ $DISTRO =~ f36 ]]; then
         # Note httpd comes with mod_proxy_uwsgi and it is loaded by
         # default; the mod_proxy_uwsgi package actually conflicts now.
         # See:

lib/nova_plugins/functions-libvirt

@@ -82,11 +82,17 @@ function install_libvirt {
             sudo dnf copr enable -y @virtmaint-sig/virt-preview
         fi
 
+        if is_openeuler; then
+            qemu_package=qemu
+        else
+            qemu_package=qemu-kvm
+        fi
+
         # Note that in CentOS/RHEL this needs to come from the RDO
         # repositories (qemu-kvm-ev ... which provides this package)
         # as the base system version is too old.  We should have
         # pre-installed these
-        install_package qemu-kvm
+        install_package $qemu_package
         install_package libvirt libvirt-devel python3-libvirt
 
         if is_arch "aarch64"; then

roles/apache-logs-conf/tasks/main.yaml

@@ -64,6 +64,7 @@
       'Debian': '/etc/apache2/sites-enabled/'
       'Suse': '/etc/apache2/conf.d/'
       'RedHat': '/etc/httpd/conf.d/'
+      'openEuler': '/etc/httpd/conf.d/'
 
 - name: Discover configurations
   find:

stack.sh

@@ -229,7 +229,7 @@ write_devstack_version
 
 # Warn users who aren't on an explicitly supported distro, but allow them to
 # override check and attempt installation with ``FORCE=yes ./stack``
-SUPPORTED_DISTROS="bullseye|focal|jammy|f36|opensuse-15.2|opensuse-tumbleweed|rhel8|rhel9"
+SUPPORTED_DISTROS="bullseye|focal|jammy|f36|opensuse-15.2|opensuse-tumbleweed|rhel8|rhel9|openEuler-22.03"
 
 if [[ ! ${DISTRO} =~ $SUPPORTED_DISTROS ]]; then
     echo "WARNING: this script has not been tested on $DISTRO"
@@ -394,6 +394,15 @@ elif [[ $DISTRO == "rhel9" ]]; then
     sudo dnf config-manager --set-enabled crb
     # rabbitmq and other packages are provided by RDO repositories.
     _install_rdo
+elif [[ $DISTRO == "openEuler-22.03" ]]; then
+    # There are some problem in openEuler. We should fix it first. Some required
+    # package/action runs before fixup script. So we can't fix there.
+    #
+    # 1. the hostname package is not installed by default
+    # 2. Some necessary packages are in openstack repo, for example liberasurecode-devel
+    # 3. python3-pip can be uninstalled by `get_pip.py` automaticly.
+    install_package hostname openstack-release-wallaby
+    uninstall_package python3-pip
 fi
 
 # Ensure python is installed