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https://github.com/cloudnative-pg/plugin-barman-cloud.git
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7bb01a865b
CloudNativePG is moving the bootstrap of new instances from dedicated Jobs into the instance pod itself (cloudnative-pg/cloudnative-pg#11319): the restore that used to run in a recovery Job now happens in-process inside the instance pod before PostgreSQL starts. The sidecar shipped in that pod must therefore answer the same Restore RPC the operator sends over the plugin sockets, so the instance mode now registers the restore-job hooks and advertises the restore-job service capability. A cluster that only bootstraps from an object store, without continued archiving, previously received no sidecar at all in its instance pods; under the new flow that leaves the bootstrap without a plugin socket, both for the Restore RPC and for `wal-restore` during the recovery replay. The injection condition is widened to match what the plugin configuration already considers valid, so recovery-only clusters get the sidecar too. The sidecar is dropped once the instance's bootstrap completes (cluster.Status.CurrentPrimary set), which triggers one deterministic rollout to remove it, accepted rather than engineered around since it uses the same switchover/restart machinery as any other pod-spec change. Signed-off-by: Armando Ruocco <armando.ruocco@enterprisedb.com> Signed-off-by: Marco Nenciarini <marco.nenciarini@enterprisedb.com> Co-authored-by: Marco Nenciarini <marco.nenciarini@enterprisedb.com>
88 lines
2.7 KiB
Go
88 lines
2.7 KiB
Go
/*
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Copyright © contributors to CloudNativePG, established as
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CloudNativePG a Series of LF Projects, LLC.
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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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SPDX-License-Identifier: Apache-2.0
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*/
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package instance
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import (
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"context"
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"github.com/cloudnative-pg/cnpg-i-machinery/pkg/pluginhelper/http"
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"github.com/cloudnative-pg/cnpg-i/pkg/backup"
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"github.com/cloudnative-pg/cnpg-i/pkg/metrics"
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restore "github.com/cloudnative-pg/cnpg-i/pkg/restore/job"
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"github.com/cloudnative-pg/cnpg-i/pkg/wal"
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"google.golang.org/grpc"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/common"
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barmanrestore "github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/restore"
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)
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// CNPGI is the implementation of the PostgreSQL sidecar
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type CNPGI struct {
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Client client.Client
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PGDataPath string
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PGWALPath string
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SpoolDirectory string
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// mutually exclusive with serverAddress
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PluginPath string
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InstanceName string
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}
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// Start starts the GRPC service
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func (c *CNPGI) Start(ctx context.Context) error {
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enrich := func(server *grpc.Server) error {
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wal.RegisterWALServer(server, common.WALServiceImplementation{
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InstanceName: c.InstanceName,
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Client: c.Client,
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SpoolDirectory: c.SpoolDirectory,
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PGDataPath: c.PGDataPath,
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PGWALPath: c.PGWALPath,
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})
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backup.RegisterBackupServer(server, BackupServiceImplementation{
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Client: c.Client,
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InstanceName: c.InstanceName,
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})
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metrics.RegisterMetricsServer(server, &metricsImpl{
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Client: c.Client,
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})
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// The instance pod runs the phase-0 bootstrap in-process (no separate
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// recovery Job), so the same sidecar must answer the Restore RPC that
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// initializes PGDATA from the object store before PostgreSQL starts.
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restore.RegisterRestoreJobHooksServer(server, &barmanrestore.JobHookImpl{
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Client: c.Client,
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SpoolDirectory: c.SpoolDirectory,
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PgDataPath: c.PGDataPath,
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PgWalFolderToSymlink: common.PgWalVolumePgWalPath,
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})
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common.AddHealthCheck(server)
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return nil
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}
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srv := http.Server{
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IdentityImpl: IdentityImplementation{
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Client: c.Client,
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},
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Enrichers: []http.ServerEnricher{enrich},
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PluginPath: c.PluginPath,
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}
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return srv.Start(ctx)
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}
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