78 lines
2.9 KiB
Go
78 lines
2.9 KiB
Go
/*
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Copyright 2026.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package controller
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import databasev1alpha1 "git.ddupan.top/panxiao81/postgresql-tenant-operator/api/v1alpha1"
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type tenantPhaseResult struct {
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phase databasev1alpha1.PostgreSQLTenantPhase
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reconcilingMessage string
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}
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type tenantPhaseHandler func(*databasev1alpha1.PostgreSQLTenant) tenantPhaseResult
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type tenantStateMachine struct {
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handlers map[databasev1alpha1.PostgreSQLTenantPhase]tenantPhaseHandler
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}
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func newTenantStateMachine() tenantStateMachine {
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return tenantStateMachine{handlers: map[databasev1alpha1.PostgreSQLTenantPhase]tenantPhaseHandler{
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databasev1alpha1.PostgreSQLTenantPhasePending: reconcileTenantPending,
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databasev1alpha1.PostgreSQLTenantPhasePlanned: keepTenantPhase,
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databasev1alpha1.PostgreSQLTenantPhaseCredentialCreated: keepTenantPhase,
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databasev1alpha1.PostgreSQLTenantPhaseRoleCreated: keepTenantPhase,
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databasev1alpha1.PostgreSQLTenantPhaseDatabaseCreated: keepTenantPhase,
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databasev1alpha1.PostgreSQLTenantPhaseExternalSecretCreated: keepTenantPhase,
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databasev1alpha1.PostgreSQLTenantPhaseCredentialProjected: keepTenantPhase,
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databasev1alpha1.PostgreSQLTenantPhaseReady: keepTenantPhase,
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databasev1alpha1.PostgreSQLTenantPhaseDeleting: reconcileTenantDeleting,
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}}
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}
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func (m tenantStateMachine) reconcile(tenant *databasev1alpha1.PostgreSQLTenant) tenantPhaseResult {
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phase := tenant.Status.Phase
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if !tenant.DeletionTimestamp.IsZero() {
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phase = databasev1alpha1.PostgreSQLTenantPhaseDeleting
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} else if phase == "" {
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phase = databasev1alpha1.PostgreSQLTenantPhasePending
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}
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handler, found := m.handlers[phase]
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if !found {
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return tenantPhaseResult{phase: phase}
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}
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return handler(tenant)
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}
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func reconcileTenantPending(*databasev1alpha1.PostgreSQLTenant) tenantPhaseResult {
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return tenantPhaseResult{
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phase: databasev1alpha1.PostgreSQLTenantPhasePending,
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reconcilingMessage: "tenant is waiting for its instance",
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}
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}
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func reconcileTenantDeleting(*databasev1alpha1.PostgreSQLTenant) tenantPhaseResult {
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return tenantPhaseResult{
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phase: databasev1alpha1.PostgreSQLTenantPhaseDeleting,
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reconcilingMessage: "tenant deletion is reconciling",
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}
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}
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func keepTenantPhase(tenant *databasev1alpha1.PostgreSQLTenant) tenantPhaseResult {
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return tenantPhaseResult{phase: tenant.Status.Phase}
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}
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