From f9aaa8ac13adf841823f35be594641bdc2ebecac Mon Sep 17 00:00:00 2001 From: Andrew Butcher Date: Tue, 5 Jan 2016 11:39:22 -0500 Subject: Update rolling restart playbook for pacemaker support. Replace fail with a warn and prompt if running ansible from a host that will be rebooted. Re-organize playbooks. --- playbooks/common/openshift-master/restart.yml | 128 +++++++++++++++++++++ .../common/openshift-master/restart_hosts.yml | 28 +++++ .../openshift-master/restart_hosts_pacemaker.yml | 25 ++++ .../common/openshift-master/restart_services.yml | 27 +++++ .../restart_services_pacemaker.yml | 10 ++ 5 files changed, 218 insertions(+) create mode 100644 playbooks/common/openshift-master/restart.yml create mode 100644 playbooks/common/openshift-master/restart_hosts.yml create mode 100644 playbooks/common/openshift-master/restart_hosts_pacemaker.yml create mode 100644 playbooks/common/openshift-master/restart_services.yml create mode 100644 playbooks/common/openshift-master/restart_services_pacemaker.yml (limited to 'playbooks/common/openshift-master') diff --git a/playbooks/common/openshift-master/restart.yml b/playbooks/common/openshift-master/restart.yml new file mode 100644 index 000000000..7603f0d61 --- /dev/null +++ b/playbooks/common/openshift-master/restart.yml @@ -0,0 +1,128 @@ +--- +- include: ../openshift-cluster/evaluate_groups.yml + +- name: Validate configuration for rolling restart + hosts: oo_masters_to_config + roles: + - openshift_facts + tasks: + - fail: + msg: "openshift_rolling_restart_mode must be set to either 'services' or 'system'" + when: openshift_rolling_restart_mode is defined and openshift_rolling_restart_mode not in ["services", "system"] + - openshift_facts: + role: "{{ item.role }}" + local_facts: "{{ item.local_facts }}" + with_items: + - role: common + local_facts: + rolling_restart_mode: "{{ openshift_rolling_restart_mode | default('services') }}" + - role: master + local_facts: + cluster_method: "{{ openshift_master_cluster_method | default(None) }}" + +# Creating a temp file on localhost, we then check each system that will +# be rebooted to see if that file exists, if so we know we're running +# ansible on a machine that needs a reboot, and we need to error out. +- name: Create temp file on localhost + hosts: localhost + connection: local + become: no + gather_facts: no + tasks: + - local_action: command mktemp + register: mktemp + changed_when: false + +- name: Check if temp file exists on any masters + hosts: oo_masters_to_config + tasks: + - stat: path="{{ hostvars.localhost.mktemp.stdout }}" + register: exists + changed_when: false + +- name: Cleanup temp file on localhost + hosts: localhost + connection: local + become: no + gather_facts: no + tasks: + - file: path="{{ hostvars.localhost.mktemp.stdout }}" state=absent + changed_when: false + +- name: Warn if restarting the system where ansible is running + hosts: oo_masters_to_config + tasks: + - pause: + prompt: > + Warning: Running playbook from a host that will be restarted! + Press CTRL+C and A to abort playbook execution. You may + continue by pressing ENTER but the playbook will stop + executing once this system restarts and services must be + manually verified. + when: exists.stat.exists and openshift.common.rolling_restart_mode == 'system' + - set_fact: + current_host: "{{ exists.stat.exists }}" + when: openshift.common.rolling_restart_mode == 'system' + +- name: Determine which masters are currently active + hosts: oo_masters_to_config + tasks: + - name: Check master service status + command: > + systemctl is-active {{ openshift.common.service_type }}-master + register: active_check_output + when: openshift.master.cluster_method == 'pacemaker' + failed_when: active_check_output.stdout not in ['active', 'inactive'] + - set_fact: + is_active: "{{ active_check_output.stdout == 'active' }}" + when: openshift.master.cluster_method == 'pacemaker' + +- name: Evaluate master groups + hosts: localhost + become: no + tasks: + - name: Evaluate oo_active_masters + add_host: + name: "{{ item }}" + groups: oo_active_masters + ansible_ssh_user: "{{ g_ssh_user | default(omit) }}" + ansible_sudo: "{{ g_sudo | default(omit) }}" + with_items: "{{ groups.oo_masters_to_config | default([]) }}" + when: (hostvars[item]['is_active'] | default(false)) | bool + - name: Evaluate oo_current_masters + add_host: + name: "{{ item }}" + groups: oo_current_masters + ansible_ssh_user: "{{ g_ssh_user | default(omit) }}" + ansible_sudo: "{{ g_sudo | default(omit) }}" + with_items: "{{ groups.oo_masters_to_config | default([]) }}" + when: (hostvars[item]['current_host'] | default(false)) | bool + +- name: Restart masters + hosts: oo_masters_to_config:!oo_active_masters:!oo_current_masters + vars: + openshift_master_ha: "{{ groups.oo_masters_to_config | length > 1 }}" + serial: 1 + tasks: + - include: restart_hosts.yml + when: openshift.common.rolling_restart_mode == 'system' + - include: restart_services.yml + when: openshift.common.rolling_restart_mode == 'services' + +- name: Restart active masters + hosts: oo_active_masters + serial: 1 + tasks: + - include: restart_hosts_pacemaker.yml + when: openshift.common.rolling_restart_mode == 'system' + - include: restart_services_pacemaker.yml + when: openshift.common.rolling_restart_mode == 'services' + +- name: Restart current masters + hosts: oo_current_masters + serial: 1 + tasks: + - include: restart_hosts.yml + when: openshift.common.rolling_restart_mode == 'system' + - include: restart_services.yml + when: openshift.common.rolling_restart_mode == 'services' diff --git a/playbooks/common/openshift-master/restart_hosts.yml b/playbooks/common/openshift-master/restart_hosts.yml new file mode 100644 index 000000000..598e1ad63 --- /dev/null +++ b/playbooks/common/openshift-master/restart_hosts.yml @@ -0,0 +1,28 @@ +- name: Restart master system + # https://github.com/ansible/ansible/issues/10616 + shell: sleep 2 && shutdown -r now "OpenShift Ansible master rolling restart" + async: 1 + poll: 0 + ignore_errors: true + become: yes +# When cluster_method != pacemaker we can ensure the api_port is +# available. +- name: Wait for master API to come back online + become: no + local_action: + module: wait_for + host="{{ inventory_hostname }}" + state=started + delay=10 + port="{{ openshift.master.api_port }}" + when: openshift.master.cluster_method != 'pacemaker' +# When cluster_method is pacemaker we can only ensure that the host +# restarted successfully. +- name: Wait for master to start + become: no + local_action: + module: wait_for + host="{{ inventory_hostname }}" + state=started + delay=10 + when: openshift.master.cluster_method == 'pacemaker' diff --git a/playbooks/common/openshift-master/restart_hosts_pacemaker.yml b/playbooks/common/openshift-master/restart_hosts_pacemaker.yml new file mode 100644 index 000000000..c9219e8de --- /dev/null +++ b/playbooks/common/openshift-master/restart_hosts_pacemaker.yml @@ -0,0 +1,25 @@ +- name: Fail over master resource + command: > + pcs resource move master {{ hostvars | oo_select_keys(groups['oo_masters_to_config']) | oo_collect('openshift.common.hostname', {'is_active': 'False'}) | list | first }} +- name: Wait for master API to come back online + become: no + local_action: + module: wait_for + host="{{ openshift.master.cluster_hostname }}" + state=started + delay=10 + port="{{ openshift.master.api_port }}" +- name: Restart master system + # https://github.com/ansible/ansible/issues/10616 + shell: sleep 2 && shutdown -r now "OpenShift Ansible master rolling restart" + async: 1 + poll: 0 + ignore_errors: true + become: yes +- name: Wait for master to start + become: no + local_action: + module: wait_for + host="{{ inventory_hostname }}" + state=started + delay=10 diff --git a/playbooks/common/openshift-master/restart_services.yml b/playbooks/common/openshift-master/restart_services.yml new file mode 100644 index 000000000..5e539cd65 --- /dev/null +++ b/playbooks/common/openshift-master/restart_services.yml @@ -0,0 +1,27 @@ +- name: Restart master + service: + name: "{{ openshift.common.service_type }}-master" + state: restarted + when: not openshift_master_ha | bool +- name: Restart master API + service: + name: "{{ openshift.common.service_type }}-master-api" + state: restarted + when: openshift_master_ha | bool and openshift.master.cluster_method != 'pacemaker' +- name: Wait for master API to come back online + become: no + local_action: + module: wait_for + host="{{ inventory_hostname }}" + state=started + delay=10 + port="{{ openshift.master.api_port }}" + when: openshift_master_ha | bool and openshift.master.cluster_method != 'pacemaker' +- name: Restart master controllers + service: + name: "{{ openshift.common.service_type }}-master-controllers" + state: restarted + # Ignore errrors since it is possible that type != simple for + # pre-3.1.1 installations. + ignore_errors: true + when: openshift_master_ha | bool and openshift.master.cluster_method != 'pacemaker' diff --git a/playbooks/common/openshift-master/restart_services_pacemaker.yml b/playbooks/common/openshift-master/restart_services_pacemaker.yml new file mode 100644 index 000000000..e738f3fb6 --- /dev/null +++ b/playbooks/common/openshift-master/restart_services_pacemaker.yml @@ -0,0 +1,10 @@ +- name: Restart master services + command: pcs resource restart master +- name: Wait for master API to come back online + become: no + local_action: + module: wait_for + host="{{ openshift.master.cluster_hostname }}" + state=started + delay=10 + port="{{ openshift.master.api_port }}" -- cgit v1.2.3