132 lines
4.1 KiB
Go
132 lines
4.1 KiB
Go
/*
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Copyright 2024 Peter Kurfer.
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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 (
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"context"
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"errors"
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"io"
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"github.com/jackc/pgx/v5"
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appsv1 "k8s.io/api/apps/v1"
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"k8s.io/apimachinery/pkg/runtime"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/log"
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supabasev1alpha1 "code.icb4dc0.de/prskr/supabase-operator/api/v1alpha1"
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"code.icb4dc0.de/prskr/supabase-operator/assets/migrations"
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"code.icb4dc0.de/prskr/supabase-operator/infrastructure/db"
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)
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// CoreReconciler reconciles a Core object
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type CoreReconciler struct {
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client.Client
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Scheme *runtime.Scheme
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}
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// +kubebuilder:rbac:groups=supabase.k8s.icb4dc0.de,resources=cores,verbs=get;list;watch;create;update;patch;delete
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// +kubebuilder:rbac:groups=supabase.k8s.icb4dc0.de,resources=cores/status,verbs=get;update;patch
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// +kubebuilder:rbac:groups=supabase.k8s.icb4dc0.de,resources=cores/finalizers,verbs=update
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// Reconcile is part of the main kubernetes reconciliation loop which aims to
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// move the current state of the cluster closer to the desired state.
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// TODO(user): Modify the Reconcile function to compare the state specified by
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// the Core object against the actual cluster state, and then
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// perform operations to make the cluster state reflect the state specified by
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// the user.
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//
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// For more details, check Reconcile and its Result here:
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// - https://pkg.go.dev/sigs.k8s.io/controller-runtime@v0.19.1/pkg/reconcile
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func (r *CoreReconciler) Reconcile(ctx context.Context, req ctrl.Request) (res ctrl.Result, err error) {
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logger := log.FromContext(ctx)
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var core supabasev1alpha1.Core
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if err := r.Get(ctx, req.NamespacedName, &core); client.IgnoreNotFound(err) != nil {
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logger.Error(err, "unable to fetch Core")
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return ctrl.Result{}, err
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}
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dsn, err := core.Spec.Database.GetDSN(ctx, client.NewNamespacedClient(r.Client, req.Namespace))
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if err != nil {
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logger.Error(err, "unable to get DSN")
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return ctrl.Result{}, err
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}
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conn, err := pgx.Connect(ctx, dsn)
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if err != nil {
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logger.Error(err, "unable to connect to database")
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return ctrl.Result{}, err
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}
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defer CloseCtx(ctx, conn, &err)
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if err := r.applyMissingMigrations(ctx, conn, &core); err != nil {
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return ctrl.Result{}, err
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}
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return ctrl.Result{}, nil
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}
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// SetupWithManager sets up the controller with the Manager.
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func (r *CoreReconciler) SetupWithManager(mgr ctrl.Manager) error {
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return ctrl.NewControllerManagedBy(mgr).
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For(&supabasev1alpha1.Core{}).
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Owns(new(appsv1.Deployment)).
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Named("core").
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Complete(r)
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}
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func (r *CoreReconciler) applyMissingMigrations(ctx context.Context, conn *pgx.Conn, core *supabasev1alpha1.Core) (err error) {
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logger := log.FromContext(ctx)
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logger.Info("Checking for outstanding migrations")
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migrator := db.Migrator{Conn: conn}
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var appliedSomething bool
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if appliedSomething, err = migrator.ApplyAll(ctx, core.Status.AppliedMigrations, migrations.InitScripts()); err != nil {
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return err
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}
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if appliedSomething {
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logger.Info("Updating status after applying init scripts")
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return r.Client.Status().Update(ctx, core)
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}
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if appliedSomething, err = migrator.ApplyAll(ctx, core.Status.AppliedMigrations, migrations.MigrationScripts()); err != nil {
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return err
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}
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if appliedSomething {
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logger.Info("Updating status after applying migration scripts")
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return r.Client.Status().Update(ctx, core)
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}
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return nil
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}
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func Close(closer io.Closer, err *error) {
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*err = errors.Join(*err, closer.Close())
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}
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func CloseCtx(ctx context.Context, closable interface {
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Close(ctx context.Context) error
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}, err *error,
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) {
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*err = errors.Join(*err, closable.Close(ctx))
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}
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