131 lines
4.2 KiB
Python
131 lines
4.2 KiB
Python
#
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# Copyright (c) 2020-2023 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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"""Application helm class"""
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from k8sapp_vault.common import constants as app_constants
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from oslo_log import log as logging
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from sysinv.common import constants
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from sysinv.common import exception
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from sysinv.helm import base
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from sysinv.helm import common
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from sysinv.db import api as dbapi
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import yaml
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LOG = logging.getLogger(__name__)
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class VaultHelm(base.FluxCDBaseHelm):
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"""Class to encapsulate helm operations for the vault chart"""
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SUPPORTED_NAMESPACES = base.BaseHelm.SUPPORTED_NAMESPACES + \
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[common.HELM_NS_VAULT]
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SUPPORTED_APP_NAMESPACES = {
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constants.HELM_APP_VAULT:
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base.BaseHelm.SUPPORTED_NAMESPACES + [common.HELM_NS_VAULT],
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}
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SUPPORTED_COMPONENT_OVERRIDES = ['application', 'platform']
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DEFAULT_AFFINITY = 'platform'
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LABEL_PARAMETER = 'extraLabels'
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CHART = app_constants.HELM_CHART_VAULT
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HELM_RELEASE = app_constants.HELM_RELEASE_VAULT
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def get_namespaces(self):
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"""Return the list of supported namespaces"""
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return self.SUPPORTED_NAMESPACES
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def get_master_worker_host_count(self):
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"""Read the number of nodes with worker function"""
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controller = len(self.dbapi.ihost_get_by_personality(constants.CONTROLLER))
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worker = len(self.dbapi.ihost_get_by_personality(constants.WORKER))
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return controller + worker
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def get_overrides(self, namespace=None):
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"""Return the system overrides"""
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if self.get_master_worker_host_count() >= 3:
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ha_replicas = 3
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else:
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ha_replicas = 1
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dbapi_instance = dbapi.get_instance()
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db_app = dbapi_instance.kube_app_get(app_constants.HELM_APP_VAULT)
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# User chart overrides
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new_chart_overrides = self._get_helm_overrides(
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dbapi_instance,
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db_app,
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app_constants.HELM_CHART_VAULT,
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app_constants.HELM_CHART_NS_VAULT,
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'user_overrides')
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user_chosen_affinity = new_chart_overrides.get(
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app_constants.HELM_CHART_COMPONENT_LABEL) \
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if new_chart_overrides else None
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if user_chosen_affinity in self.SUPPORTED_COMPONENT_OVERRIDES:
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affinity = user_chosen_affinity
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else:
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affinity = self.DEFAULT_AFFINITY
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LOG.warn((f'User override for core affinity {user_chosen_affinity} '
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f'is invalid, using default of {self.DEFAULT_AFFINITY}'))
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overrides = {
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common.HELM_NS_VAULT: {
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app_constants.HELM_VAULT_SERVER_POD: {
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'ha': {
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'replicas': ha_replicas,
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},
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self.LABEL_PARAMETER: {
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app_constants.HELM_CHART_COMPONENT_LABEL: affinity
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}
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},
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app_constants.HELM_VAULT_INJECTOR_POD: {
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self.LABEL_PARAMETER: {
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app_constants.HELM_CHART_COMPONENT_LABEL: affinity
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}
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},
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app_constants.HELM_VAULT_MANAGER_POD: {
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self.LABEL_PARAMETER: {
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app_constants.HELM_CHART_COMPONENT_LABEL: affinity
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}
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},
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}
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}
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if namespace in self.SUPPORTED_NAMESPACES:
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return overrides[namespace]
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if namespace:
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raise exception.InvalidHelmNamespace(chart=self.CHART,
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namespace=namespace)
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return overrides
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@staticmethod
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def _get_helm_overrides(dbapi_instance, app, chart, namespace,
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type_of_overrides):
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"""Helper function for querying helm overrides from db."""
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helm_overrides = {}
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try:
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helm_overrides = dbapi_instance.helm_override_get(
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app_id=app.id,
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name=chart,
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namespace=namespace,
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)[type_of_overrides]
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if isinstance(helm_overrides, str):
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helm_overrides = yaml.safe_load(helm_overrides)
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except exception.HelmOverrideNotFound:
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LOG.debug("Overrides for this chart not found, nothing to be done.")
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return helm_overrides
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