7eb2020f7f
The existing handler which prevents keepalived from being killed during neutron-l3-agent restarts doesn't go far enough at present. This patch adjusts the processes which are killed to exclude the haproxy instance which is responsible for proxying the Nova metadata service. Change-Id: I407c6662841bec9d3e3208d2e46bd7d1d5db00fb
99 lines
3.5 KiB
YAML
99 lines
3.5 KiB
YAML
---
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# Copyright 2014, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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- name: Stop services
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service:
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name: "{{ item.service_name }}"
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enabled: yes
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state: "stopped"
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daemon_reload: yes
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with_items: "{{ filtered_neutron_services }}"
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register: _stop
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until: _stop is success
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retries: 5
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delay: 2
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listen:
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- "Restart neutron services"
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- "venv changed"
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# NOTE(cloudnull):
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# When installing or upgrading it is possible that an old metadata proxy process will not
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# be restarted by the metadata agent when a version changes. To fix it the ns-metadata
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# proxy pids are killed if they're not running the current tag. Once the old processeses
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# are removed the metadata agent will respawn the missing process within 60 seconds using
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# the correct code.
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- name: Run ns-metadata-proxy process cleanup
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shell: |
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for ns_pid in $(pgrep neutron-ns-meta); do
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echo $(readlink -f "/proc/$ns_pid/exe") | grep -qv "{{ neutron_venv_tag }}"
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if [ $? -eq 0 ]; then
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if kill -9 "$ns_pid"; then
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logger -s "old metadata proxy pid found and has been cleaned up on: \"$ns_pid\""
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fi
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fi
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done
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when: "'neutron-metadata-agent' in (filtered_neutron_services | map(attribute='service_key') | list)"
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listen:
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- "Restart neutron services"
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- "venv changed"
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# NOTE
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# When restarting neutron-l3-agent, a non-default systemd KillMode of 'process' is used
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# to prevent Keepalived from exiting and causing a data-plane outage. As a result of this
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# some neutron processes remain running. In the case of an upgrade, these remaining
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# processes will be running code from the previous version. This step ensures these
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# orphaned processes are cleaned up correctly.
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- name: Run neutron-l3-agent process cleanup
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shell: |
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for ns_pid in $(cat /sys/fs/cgroup/pids/neutron.slice/neutron-l3-agent.service/cgroup.procs); do
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echo $(readlink -f "/proc/$ns_pid/exe") | egrep -qv "keepalived|haproxy"
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if [ $? -eq 0 ] || [ "{{ neutron_l3_cleanup_on_shutdown | bool }}" = "True" ]; then
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if kill -9 "$ns_pid"; then
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logger -s "old neutron-l3-agent pid found and has been cleaned up on: \"$ns_pid\""
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fi
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fi
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done
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when: "'neutron-l3-agent' in (filtered_neutron_services | map(attribute='service_key') | list)"
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listen:
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- "Restart neutron services"
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- "venv changed"
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- name: Perform a DB contract
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command: "{{ neutron_bin }}/neutron-db-manage upgrade --contract"
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become: yes
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become_user: "{{ neutron_system_user_name }}"
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delegate_to: "{{ groups[neutron_services['neutron-server']['group']][0] }}"
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when:
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- "ansible_local['openstack_ansible']['neutron']['need_db_contract'] | bool"
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- "_neutron_is_first_play_host"
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listen:
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- "Restart neutron services"
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- "venv changed"
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- name: Start services
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service:
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name: "{{ item.service_name }}"
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enabled: yes
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state: "started"
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daemon_reload: yes
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with_items: "{{ filtered_neutron_services }}"
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register: _start
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until: _start is success
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retries: 5
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delay: 2
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listen:
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- "Restart neutron services"
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- "venv changed"
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