Add devstack plugin

Change-Id: If5f67261448434704352583bc02e74bc61ec7a13

devstack/README.rst

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+=========================
+Enabling Aetos in DevStack
+=========================
+
+1. Download DevStack::
+
+    git clone https://opendev.org/openstack/devstack.git
+    cd devstack
+
+2. Add this repo as an external repository in ``local.conf`` file::
+
+    [[local|localrc]]
+    enable_plugin aetos https://opendev.org/openstack/aetos
+
+   To use stable branches, make sure devstack is on that branch, and specify
+   the branch name to enable_plugin, for example::
+
+    enable_plugin aetos https://opendev.org/openstack/aetos stable/2025.1
+
+   There are some options, defined in
+   ``aetos/devstack/settings``, they can be used to configure the installation
+   of Aetos. If you don't want to use their default value, you can set a new
+   one in ``local.conf``.
+
+3. Run ``stack.sh``.

devstack/plugin.sh

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+# Install and start **Aetos** service in devstack
+#
+# To enable Aetos in devstack add an entry to local.conf that
+# looks like
+#
+# [[local|localrc]]
+# enable_plugin aetos https://opendev.org/openstack/aetos
+
+# Support potential entry-points console scripts in VENV or not
+if [[ ${USE_VENV} = True ]]; then
+    PROJECT_VENV["aetos"]=${AETOS_DIR}.venv
+    AETOS_BIN_DIR=${PROJECT_VENV["aetos"]}/bin
+else
+    AETOS_BIN_DIR=$(get_python_exec_prefix)
+fi
+
+# Test if any Aetos services are enabled
+# is_aetos_enabled
+function is_aetos_enabled {
+    [[ ,${ENABLED_SERVICES} =~ ,"aetos" ]] && return 0
+    return 1
+}
+
+function aetos_service_url {
+    echo "$AETOS_SERVICE_PROTOCOL://$AETOS_SERVICE_HOST/prometheus"
+}
+
+# Create aetos related accounts in Keystone
+function _aetos_create_accounts {
+    if is_service_enabled aetos; then
+
+        create_service_user "aetos" "admin"
+
+        get_or_create_service "aetos" "prometheus" "OpenStack Aetos Service"
+        get_or_create_endpoint 'prometheus' "$REGION_NAME" "$(aetos_service_url)"
+    fi
+}
+
+# cleanup_aetos() - Remove residual data files, anything left over
+# from previous runs that a clean run would need to clean up
+function cleanup_aetos {
+    remove_uwsgi_config "$AETOS_UWSGI_CONF" "aetos"
+}
+
+# Configure Aetos
+function configure_aetos {
+    iniset $AETOS_CONF DEFAULT debug "$ENABLE_DEBUG_LOG_LEVEL"
+
+    # Set up logging
+    iniset $AETOS_CONF DEFAULT use_syslog $SYSLOG
+
+    # Format logging
+    setup_logging $AETOS_CONF DEFAULT
+
+    iniset $AETOS_CONF service_credentials auth_type password
+    iniset $AETOS_CONF service_credentials username aetos
+    iniset $AETOS_CONF service_credentials user_domain_id default
+    iniset $AETOS_CONF service_credentials project_domain_id default
+    iniset $AETOS_CONF service_credentials password $SERVICE_PASSWORD
+    iniset $AETOS_CONF service_credentials project_name $SERVICE_PROJECT_NAME
+    iniset $AETOS_CONF service_credentials region_name $REGION_NAME
+    iniset $AETOS_CONF service_credentials auth_url $KEYSTONE_SERVICE_URI
+
+    configure_keystone_authtoken_middleware $AETOS_CONF aetos
+
+    # iniset creates these files when it's called if they don't exist.
+    write_uwsgi_config "$AETOS_UWSGI_CONF" "$AETOS_UWSGI" "/prometheus" "" "aetos"
+}
+
+# init_aetos() - Initialize etc.
+function init_aetos {
+    # Get aetos keystone settings in place
+    _aetos_create_accounts
+}
+
+# Install Aetos.
+function install_aetos {
+    setup_develop $AETOS_DIR $AETOS_BACKEND
+    sudo install -d -o $STACK_USER -m 755 $AETOS_CONF_DIR
+
+    pip_install uwsgi
+}
+
+# start_aetos() - Start running processes, including screen
+function start_aetos {
+    run_process aetos "$AETOS_BIN_DIR/uwsgi --ini $AETOS_UWSGI_CONF"
+}
+
+# configure_tempest_for_aetos()
+function configure_tempest_for_aetos {
+    if is_service_enabled tempest; then
+        iniset $TEMPEST_CONFIG service_available aetos True
+    fi
+}
+
+# stop_aetos() - Stop running processes
+function stop_aetos {
+    stop_process aetos
+}
+
+# This is the main for plugin.sh
+if is_service_enabled aetos; then
+    if [[ "$1" == "stack" && "$2" == "install" ]]; then
+        echo_summary "Installing Aetos"
+        # Use stack_install_service here to account for virtualenv
+        stack_install_service aetos
+    elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
+        echo_summary "Configuring Aetos"
+        configure_aetos
+    elif [[ "$1" == "stack" && "$2" == "extra" ]]; then
+        echo_summary "Initializing Aetos"
+        # Tidy base for aetos
+        init_aetos
+        # Start the service
+        start_aetos
+    elif [[ "$1" == "stack" && "$2" == "test-config" ]]; then
+        echo_summary "Configuring Tempest for Aetos"
+        configure_tempest_for_aetos
+    fi
+
+    if [[ "$1" == "unstack" ]]; then
+        echo_summary "Shutting Down Aetos"
+        stop_aetos
+    fi
+
+    if [[ "$1" == "clean" ]]; then
+        echo_summary "Cleaning Aetos"
+        cleanup_aetos
+    fi
+fi

devstack/settings

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+# Aetos service
+enable_service aetos
+
+# Default directories
+AETOS_DIR=$DEST/aetos
+AETOS_CONF_DIR=/etc/aetos
+AETOS_CONF=$AETOS_CONF_DIR/aetos.conf
+AETOS_UWSGI_CONF=$AETOS_CONF_DIR/aetos-uwsgi.ini
+AETOS_UWSGI=aetos.wsgi.api:application
+
+# Aetos connection info.
+AETOS_SERVICE_PROTOCOL=http
+AETOS_SERVICE_HOST=${AETOS_SERVICE_HOST:-$SERVICE_HOST}