K8SPG-574: add pg_repack to .spec.extensions.builtin

build/crd/crunchy/generated/postgres-operator.crunchydata.com_postgresclusters.yaml

@@ -8352,6 +8352,8 @@ spec:
                 properties:
                   pgAudit:
                     type: boolean
+                  pgRepack:
+                    type: boolean
                   pgStatMonitor:
                     type: boolean
                   pgStatStatements:

build/crd/percona/generated/pgv2.percona.com_perconapgclusters.yaml

@@ -8066,6 +8066,8 @@ spec:
                     properties:
                       pg_audit:
                         type: boolean
+                      pg_repack:
+                        type: boolean
                       pg_stat_monitor:
                         type: boolean
                       pgvector:

config/crd/bases/pgv2.percona.com_perconapgclusters.yaml

@@ -8471,6 +8471,8 @@ spec:
                     properties:
                       pg_audit:
                         type: boolean
+                      pg_repack:
+                        type: boolean
                       pg_stat_monitor:
                         type: boolean
                       pgvector:

config/crd/bases/postgres-operator.crunchydata.com_postgresclusters.yaml

@@ -8312,6 +8312,8 @@ spec:
                 properties:
                   pgAudit:
                     type: boolean
+                  pgRepack:
+                    type: boolean
                   pgStatMonitor:
                     type: boolean
                   pgStatStatements:

deploy/bundle.yaml

@@ -8768,6 +8768,8 @@ spec:
                     properties:
                       pg_audit:
                         type: boolean
+                      pg_repack:
+                        type: boolean
                       pg_stat_monitor:
                         type: boolean
                       pgvector:
@@ -34002,6 +34004,8 @@ spec:
                 properties:
                   pgAudit:
                     type: boolean
+                  pgRepack:
+                    type: boolean
                   pgStatMonitor:
                     type: boolean
                   pgStatStatements:

deploy/cr.yaml

@@ -508,6 +508,7 @@ spec:
 #      pg_stat_monitor: true
 #      pg_audit: true
 #      pgvector: false
+#      pg_repack: false
 #    custom:
 #    - name: pg_cron
 #      version: 1.6.1

deploy/crd.yaml

@@ -8768,6 +8768,8 @@ spec:
                     properties:
                       pg_audit:
                         type: boolean
+                      pg_repack:
+                        type: boolean
                       pg_stat_monitor:
                         type: boolean
                       pgvector:
@@ -34002,6 +34004,8 @@ spec:
                 properties:
                   pgAudit:
                     type: boolean
+                  pgRepack:
+                    type: boolean
                   pgStatMonitor:
                     type: boolean
                   pgStatStatements:

deploy/cw-bundle.yaml

@@ -8768,6 +8768,8 @@ spec:
                     properties:
                       pg_audit:
                         type: boolean
+                      pg_repack:
+                        type: boolean
                       pg_stat_monitor:
                         type: boolean
                       pgvector:
@@ -34002,6 +34004,8 @@ spec:
                 properties:
                   pgAudit:
                     type: boolean
+                  pgRepack:
+                    type: boolean
                   pgStatMonitor:
                     type: boolean
                   pgStatStatements:

internal/controller/postgrescluster/postgres.go

@@ -30,6 +30,7 @@ import (
 	"github.com/percona/percona-postgresql-operator/internal/logging"
 	"github.com/percona/percona-postgresql-operator/internal/naming"
 	"github.com/percona/percona-postgresql-operator/internal/pgaudit"
+	"github.com/percona/percona-postgresql-operator/internal/pgrepack"
 	"github.com/percona/percona-postgresql-operator/internal/pgstatmonitor"
 	"github.com/percona/percona-postgresql-operator/internal/pgstatstatements"
 	"github.com/percona/percona-postgresql-operator/internal/pgvector"
@@ -245,7 +246,7 @@ func (r *Reconciler) reconcilePostgresDatabases(
 
 	// Calculate a hash of the SQL that should be executed in PostgreSQL.
 	// K8SPG-375, K8SPG-577, K8SPG-699
-	var pgAuditOK, pgStatMonitorOK, pgStatStatementsOK, pgvectorOK, postgisInstallOK bool
+	var pgAuditOK, pgStatMonitorOK, pgStatStatementsOK, pgvectorOK, pgRepackOK, postgisInstallOK bool
 	create := func(ctx context.Context, exec postgres.Executor) error {
 		// validate version string before running it in database
 		_, err := gover.NewVersion(cluster.Labels[naming.LabelVersion])
@@ -319,6 +320,19 @@ func (r *Reconciler) reconcilePostgresDatabases(
 			}
 		}
 
+		// K8SPG-574
+		if cluster.Spec.Extensions.PGRepack {
+			if pgRepackOK = pgrepack.EnableInPostgreSQL(ctx, exec) == nil; !pgRepackOK {
+				r.Recorder.Event(cluster, corev1.EventTypeWarning, "pgRepackDisabled",
+					"Unable to install pg_repack")
+			}
+		} else {
+			if pgRepackOK = pgrepack.DisableInPostgreSQL(ctx, exec) == nil; !pgRepackOK {
+				r.Recorder.Event(cluster, corev1.EventTypeWarning, "pgRepackEnabled",
+					"Unable to disable pg_repack")
+			}
+		}
+
 		// Enabling PostGIS extensions is a one-way operation
 		// e.g., you can take a PostgresCluster and turn it into a PostGISCluster,
 		// but you cannot reverse the process, as that would potentially remove an extension
@@ -364,7 +378,7 @@ func (r *Reconciler) reconcilePostgresDatabases(
 		err = errors.WithStack(create(logging.NewContext(ctx, log), podExecutor))
 	}
 	// K8SPG-472
-	if err == nil && pgStatMonitorOK && pgAuditOK && pgvectorOK && postgisInstallOK {
+	if err == nil && pgStatMonitorOK && pgAuditOK && pgvectorOK && postgisInstallOK && pgRepackOK {
 		cluster.Status.DatabaseRevision = revision
 	}
 
@@ -659,7 +673,6 @@ func (r *Reconciler) reconcilePostgresDataVolume(
 	instanceSpec *v1beta1.PostgresInstanceSetSpec, instance *appsv1.StatefulSet,
 	clusterVolumes []corev1.PersistentVolumeClaim, sourceCluster *v1beta1.PostgresCluster,
 ) (*corev1.PersistentVolumeClaim, error) {
-
 	labelMap := map[string]string{
 		naming.LabelCluster:     cluster.Name,
 		naming.LabelInstanceSet: instanceSpec.Name,
@@ -743,7 +756,8 @@ func (r *Reconciler) reconcilePostgresDataVolume(
 // setVolumeSize compares the potential sizes from the instance spec, status
 // and limit and sets the appropriate current value.
 func (r *Reconciler) setVolumeSize(ctx context.Context, cluster *v1beta1.PostgresCluster,
-	pvc *corev1.PersistentVolumeClaim, instanceSpecName string) {
+	pvc *corev1.PersistentVolumeClaim, instanceSpecName string,
+) {
 	log := logging.FromContext(ctx)
 
 	// Store the limit for this instance set. This value will not change below.
@@ -818,7 +832,6 @@ func (r *Reconciler) reconcileTablespaceVolumes(
 	instanceSpec *v1beta1.PostgresInstanceSetSpec, instance *appsv1.StatefulSet,
 	clusterVolumes []corev1.PersistentVolumeClaim,
 ) (tablespaceVolumes []*corev1.PersistentVolumeClaim, err error) {
-
 	if !feature.Enabled(ctx, feature.TablespaceVolumes) {
 		return
 	}
@@ -893,7 +906,6 @@ func (r *Reconciler) reconcilePostgresWALVolume(
 	instanceSpec *v1beta1.PostgresInstanceSetSpec, instance *appsv1.StatefulSet,
 	observed *Instance, clusterVolumes []corev1.PersistentVolumeClaim,
 ) (*corev1.PersistentVolumeClaim, error) {
-
 	labelMap := map[string]string{
 		naming.LabelCluster:     cluster.Name,
 		naming.LabelInstanceSet: instanceSpec.Name,
@@ -992,7 +1004,8 @@ func (r *Reconciler) reconcilePostgresWALVolume(
 // DatabaseInitSQL is defined, the function will find the primary pod and run
 // SQL from the defined ConfigMap
 func (r *Reconciler) reconcileDatabaseInitSQL(ctx context.Context,
-	cluster *v1beta1.PostgresCluster, instances *observedInstances) error {
+	cluster *v1beta1.PostgresCluster, instances *observedInstances,
+) error {
 	log := logging.FromContext(ctx)
 
 	// Spec is not defined, unset status and return

internal/pgrepack/postgres.go

@@ -0,0 +1,39 @@
+package pgrepack
+
+import (
+	"context"
+
+	"github.com/percona/percona-postgresql-operator/internal/logging"
+	"github.com/percona/percona-postgresql-operator/internal/postgres"
+)
+
+// EnableInPostgreSQL installs pg_repack triggers into every database.
+func EnableInPostgreSQL(ctx context.Context, exec postgres.Executor) error {
+	log := logging.FromContext(ctx)
+
+	stdout, stderr, err := exec.ExecInAllDatabases(ctx,
+		`SET client_min_messages = WARNING; CREATE EXTENSION IF NOT EXISTS pg_repack; ALTER EXTENSION pg_repack UPDATE;`,
+		map[string]string{
+			"ON_ERROR_STOP": "on", // Abort when any one command fails.
+			"QUIET":         "on", // Do not print successful commands to stdout.
+		})
+
+	log.V(1).Info("enabled pg_repack", "stdout", stdout, "stderr", stderr)
+
+	return err
+}
+
+func DisableInPostgreSQL(ctx context.Context, exec postgres.Executor) error {
+	log := logging.FromContext(ctx)
+
+	stdout, stderr, err := exec.ExecInAllDatabases(ctx,
+		`SET client_min_messages = WARNING; DROP EXTENSION IF EXISTS pg_repack;`,
+		map[string]string{
+			"ON_ERROR_STOP": "on", // Abort when any one command fails.
+			"QUIET":         "on", // Do not print successful commands to stdout.
+		})
+
+	log.V(1).Info("disabled pg_repack", "stdout", stdout, "stderr", stderr)
+
+	return err
+}

internal/pgrepack/postgres_test.go

@@ -0,0 +1,61 @@
+package pgrepack
+
+import (
+	"context"
+	"errors"
+	"io"
+	"strings"
+	"testing"
+
+	"gotest.tools/v3/assert"
+)
+
+func TestEnableInPostgreSQL(t *testing.T) {
+	expected := errors.New("whoops")
+	exec := func(
+		_ context.Context, stdin io.Reader, stdout, stderr io.Writer, command ...string,
+	) error {
+		assert.Assert(t, stdout != nil, "should capture stdout")
+		assert.Assert(t, stderr != nil, "should capture stderr")
+
+		assert.Assert(t, strings.Contains(strings.Join(command, "\n"),
+			`SELECT datname FROM pg_catalog.pg_database`,
+		), "expected all databases and templates")
+
+		b, err := io.ReadAll(stdin)
+		assert.NilError(t, err)
+		assert.Equal(t, string(b), strings.Trim(`
+SET client_min_messages = WARNING; CREATE EXTENSION IF NOT EXISTS pg_repack; ALTER EXTENSION pg_repack UPDATE;
+		`, "\t\n"))
+
+		return expected
+	}
+
+	ctx := context.Background()
+	assert.Equal(t, expected, EnableInPostgreSQL(ctx, exec))
+}
+
+func TestDisableInPostgreSQL(t *testing.T) {
+	expected := errors.New("whoops")
+	exec := func(
+		_ context.Context, stdin io.Reader, stdout, stderr io.Writer, command ...string,
+	) error {
+		assert.Assert(t, stdout != nil, "should capture stdout")
+		assert.Assert(t, stderr != nil, "should capture stderr")
+
+		assert.Assert(t, strings.Contains(strings.Join(command, "\n"),
+			`SELECT datname FROM pg_catalog.pg_database`,
+		), "expected all databases and templates")
+
+		b, err := io.ReadAll(stdin)
+		assert.NilError(t, err)
+		assert.Equal(t, string(b), strings.Trim(`
+SET client_min_messages = WARNING; DROP EXTENSION IF EXISTS pg_repack;
+		`, "\t\n"))
+
+		return expected
+	}
+
+	ctx := context.Background()
+	assert.Equal(t, expected, DisableInPostgreSQL(ctx, exec))
+}

pkg/apis/pgv2.percona.com/v2/perconapgcluster_types.go

@@ -229,6 +229,9 @@ func (cr *PerconaPGCluster) Default() {
 	if cr.Spec.Extensions.BuiltIn.PGVector == nil {
 		cr.Spec.Extensions.BuiltIn.PGVector = &f
 	}
+	if cr.Spec.Extensions.BuiltIn.PGRepack == nil {
+		cr.Spec.Extensions.BuiltIn.PGRepack = &f
+	}
 
 	if cr.CompareVersion("2.6.0") >= 0 && cr.Spec.AutoCreateUserSchema == nil {
 		cr.Spec.AutoCreateUserSchema = &t
@@ -352,6 +355,7 @@ func (cr *PerconaPGCluster) ToCrunchy(ctx context.Context, postgresCluster *crun
 	postgresCluster.Spec.Extensions.PGStatMonitor = *cr.Spec.Extensions.BuiltIn.PGStatMonitor
 	postgresCluster.Spec.Extensions.PGAudit = *cr.Spec.Extensions.BuiltIn.PGAudit
 	postgresCluster.Spec.Extensions.PGVector = *cr.Spec.Extensions.BuiltIn.PGVector
+	postgresCluster.Spec.Extensions.PGRepack = *cr.Spec.Extensions.BuiltIn.PGRepack
 
 	postgresCluster.Spec.TLSOnly = cr.Spec.TLSOnly
 
@@ -596,6 +600,7 @@ type BuiltInExtensionsSpec struct {
 	PGStatMonitor *bool `json:"pg_stat_monitor,omitempty"`
 	PGAudit       *bool `json:"pg_audit,omitempty"`
 	PGVector      *bool `json:"pgvector,omitempty"`
+	PGRepack      *bool `json:"pg_repack,omitempty"`
 }
 
 type ExtensionsSpec struct {

pkg/apis/postgres-operator.crunchydata.com/v1beta1/postgrescluster_types.go

@@ -194,6 +194,7 @@ type ExtensionsSpec struct {
 	PGAudit          bool `json:"pgAudit,omitempty"`
 	PGStatStatements bool `json:"pgStatStatements,omitempty"`
 	PGVector         bool `json:"pgvector,omitempty"`
+	PGRepack         bool `json:"pgRepack,omitempty"`
 }
 
 // DataSource defines data sources for a new PostgresCluster.