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Plugin for removing metadata server from the host
Change-Id: I04592ceb77cf8758c2edefb8f402b962078359a7
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backend/common/decapod_common/playbooks/plays/deploy_mds.yaml
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| include decapod_plugin_playbook_remove_mds/config.yaml | ||
| include decapod_plugin_playbook_remove_mds/playbook.yaml |
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plugins/playbook/remove_mds/decapod_plugin_playbook_remove_mds/config.yaml
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| --- | ||
| # Copyright (c) 2016 Mirantis Inc. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or | ||
| # implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. |
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plugins/playbook/remove_mds/decapod_plugin_playbook_remove_mds/playbook.yaml
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| --- | ||
| # Copyright (c) 2016 Mirantis Inc. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or | ||
| # implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
|
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| - include: "{{ decapod_common_playbooks }}/plays/init.yaml" | ||
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| - hosts: mdss_to_remove | ||
| become: true | ||
| tasks: | ||
| - name: get ceph status | ||
| command: ceph --cluster {{ cluster | quote }} -s --format json | ||
| register: ceph_status | ||
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| - name: get ranks of mdss on this host | ||
| set_fact: | ||
| mds_ranks: "{{ ceph_status.stdout | from_json | json_query(query) }}" | ||
| vars: | ||
| query: "fsmap.by_rank[?name=='{{ ansible_hostname }}'].rank" | ||
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| - name: stop mds on this host | ||
| service: | ||
| name: "ceph-mds@{{ ansible_hostname }}" | ||
| state: stopped | ||
| enabled: no | ||
| when: mds_ranks | ||
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| - name: remove mds rank | ||
| command: ceph --cluster {{ cluster | quote }} mds rm {{ item }} | ||
| with_items: "{{ mds_ranks }}" | ||
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| - name: rmfailed mds | ||
| command: > | ||
| ceph --cluster {{ cluster | quote }} mds rmfailed {{ item }} | ||
| --yes-i-really-mean-it | ||
| with_items: "{{ mds_ranks }}" | ||
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| - name: remove mds package | ||
| apt: | ||
| name: ceph-mds | ||
| state: absent | ||
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| - name: remove mds data | ||
| file: | ||
| path: "{{ item }}" | ||
| state: absent | ||
| with_items: | ||
| - /var/lib/ceph/mds | ||
| - /var/lib/ceph/bootstrap-mds | ||
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| - hosts: mons | ||
| become: true | ||
| roles: | ||
| - ceph-fetch-keys | ||
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| - hosts: mdss | ||
| become: true | ||
| roles: | ||
| - ceph-mds |
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plugins/playbook/remove_mds/decapod_plugin_playbook_remove_mds/plugin.py
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| # -*- coding: utf-8 -*- | ||
| # Copyright (c) 2016 Mirantis Inc. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or | ||
| # implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
| """Playbook plugin for Remove metadata server from host.""" | ||
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| from decapod_common import log | ||
| from decapod_common import playbook_plugin | ||
| from decapod_common.models import cluster_data | ||
| from decapod_common.models import server | ||
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| DESCRIPTION = "Remove metadata server from host" | ||
| """Plugin description.""" | ||
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| LOG = log.getLogger(__name__) | ||
| """Logger.""" | ||
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| class RemoveMds(playbook_plugin.CephAnsiblePlaybook): | ||
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| NAME = "Remove metadata server from host" | ||
| DESCRIPTION = DESCRIPTION | ||
| PUBLIC = True | ||
| REQUIRED_SERVER_LIST = True | ||
| SERVER_LIST_POLICY = playbook_plugin.ServerListPolicy.in_this_cluster | ||
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| def on_post_execute(self, task, exc_value, exc_type, exc_tb): | ||
| super().on_post_execute(task, exc_value, exc_type, exc_tb) | ||
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| if exc_value: | ||
| LOG.warning("Cannot remove REST API host: %s (%s)", | ||
| exc_value, exc_type) | ||
| raise exc_value | ||
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| playbook_config = self.get_playbook_configuration(task) | ||
| config = playbook_config.configuration["inventory"] | ||
| cluster = playbook_config.cluster | ||
| servers = playbook_config.servers | ||
| servers = {srv.ip: srv for srv in servers} | ||
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| group_vars = config.pop("mdss_to_remove") | ||
| group_servers = [servers[ip] for ip in group_vars] | ||
| cluster.remove_servers(group_servers, "mdss") | ||
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| if cluster.configuration.changed: | ||
| cluster.save() | ||
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| def make_playbook_configuration(self, cluster, servers, hints): | ||
| data = cluster_data.ClusterData.find_one(cluster.model_id) | ||
| global_vars = self.make_global_vars(cluster, data, servers, hints) | ||
| inventory = self.make_inventory(cluster, data, servers, hints) | ||
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| return global_vars, inventory | ||
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| def make_global_vars(self, cluster, data, servers, hints): | ||
| result = super().make_global_vars(cluster, servers, hints) | ||
| result.update(data.global_vars) | ||
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| return result | ||
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| def make_inventory(self, cluster, data, servers, hints): | ||
| groups = self.get_inventory_groups(cluster, servers, hints) | ||
| inventory = {"_meta": {"hostvars": {}}} | ||
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| for name, group_servers in groups.items(): | ||
| for srv in group_servers: | ||
| inventory.setdefault(name, []).append(srv.ip) | ||
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| hostvars = inventory["_meta"]["hostvars"].setdefault( | ||
| srv.ip, {}) | ||
| hostvars.update(data.get_host_vars(srv.ip)) | ||
| hostvars["ansible_user"] = srv.username | ||
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| return inventory | ||
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| def get_inventory_groups(self, cluster, servers, hints): | ||
| cluster_servers = server.ServerModel.cluster_servers(cluster.model_id) | ||
| cluster_servers = {item._id: item for item in cluster_servers} | ||
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| all_mdss = [ | ||
| cluster_servers[item["server_id"]] | ||
| for item in cluster.configuration.state if item["role"] == "mdss" | ||
| ] | ||
| all_mdss_ips = {srv.ip for srv in all_mdss} | ||
| for srv in servers: | ||
| all_mdss_ips.discard(srv.ip) | ||
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| mons = [ | ||
| cluster_servers[item["server_id"]] | ||
| for item in cluster.configuration.state if item["role"] == "mons" | ||
| ] | ||
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| return { | ||
| "mdss": [srv for srv in all_mdss if srv.ip in all_mdss_ips], | ||
| "mons": mons, | ||
| "mdss_to_remove": servers | ||
| } |
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| [bdist_wheel] | ||
| python-tag = py3 | ||
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| [flake8] | ||
| exclude = build,dist,docs/conf.py,*.egg-info,.eggs,.cache,.tox | ||
| inline-quotes = " | ||
| application-import-names = decapod_api,decapod_common,decapod_controller,decapodlib | ||
| import-order-style = smarkets | ||
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