plugin-barman-cloud/internal/cnpgi/instance/start.go
Armando Ruocco 4acf3b7301 feat: serve restore hooks from the instance sidecar
The bootstrap that used to run in a dedicated recovery Job now happens
in-process inside the instance pod before PostgreSQL starts, so the sidecar
shipped in that pod must answer the same Restore RPC the operator sends over
the plugin sockets. The instance mode now registers the restore job hooks and
advertises the restore-job service capability so the operator can reach them.
A cluster that only bootstraps from an object store, without continued
archiving, previously received no sidecar in its instance pods; the injection
condition is widened to match what the plugin configuration already considers
valid, so those clusters get the sidecar too.

Signed-off-by: Armando Ruocco <armando.ruocco@enterprisedb.com>
2026-08-27 09:27:32 +02:00

88 lines
2.7 KiB
Go

/*
Copyright © contributors to CloudNativePG, established as
CloudNativePG a Series of LF Projects, LLC.
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.
SPDX-License-Identifier: Apache-2.0
*/
package instance
import (
"context"
"github.com/cloudnative-pg/cnpg-i-machinery/pkg/pluginhelper/http"
"github.com/cloudnative-pg/cnpg-i/pkg/backup"
"github.com/cloudnative-pg/cnpg-i/pkg/metrics"
restore "github.com/cloudnative-pg/cnpg-i/pkg/restore/job"
"github.com/cloudnative-pg/cnpg-i/pkg/wal"
"google.golang.org/grpc"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/common"
barmanrestore "github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/restore"
)
// CNPGI is the implementation of the PostgreSQL sidecar
type CNPGI struct {
Client client.Client
PGDataPath string
PGWALPath string
SpoolDirectory string
// mutually exclusive with serverAddress
PluginPath string
InstanceName string
}
// Start starts the GRPC service
func (c *CNPGI) Start(ctx context.Context) error {
enrich := func(server *grpc.Server) error {
wal.RegisterWALServer(server, common.WALServiceImplementation{
InstanceName: c.InstanceName,
Client: c.Client,
SpoolDirectory: c.SpoolDirectory,
PGDataPath: c.PGDataPath,
PGWALPath: c.PGWALPath,
})
backup.RegisterBackupServer(server, BackupServiceImplementation{
Client: c.Client,
InstanceName: c.InstanceName,
})
metrics.RegisterMetricsServer(server, &metricsImpl{
Client: c.Client,
})
// The instance pod runs the phase-0 bootstrap in-process (no separate
// recovery Job), so the same sidecar must answer the Restore RPC that
// initializes PGDATA from the object store before PostgreSQL starts.
restore.RegisterRestoreJobHooksServer(server, &barmanrestore.JobHookImpl{
Client: c.Client,
SpoolDirectory: c.SpoolDirectory,
PgDataPath: c.PGDataPath,
PgWalFolderToSymlink: common.PgWalVolumePgWalPath,
})
common.AddHealthCheck(server)
return nil
}
srv := http.Server{
IdentityImpl: IdentityImplementation{
Client: c.Client,
},
Enrichers: []http.ServerEnricher{enrich},
PluginPath: c.PluginPath,
}
return srv.Start(ctx)
}