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Adding the support for standby cluster

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This will set up a continuous wal streaming cluster, by adding the corresponding section in postgres manifest. Instead of having a full-fledged standby cluster as in Patroni, here we use only the wal path of the source cluster and stream from there.

Since, standby cluster is streaming from the master and does not require to create or use databases of it's own. Hence, it bypasses the creation of users or databases.

There is a separate sample manifest added to set up a standby-cluster.
This commit is contained in:
Rafia Sabih
2019-06-21 10:11:39 +02:00
committed by GitHub
parent 93bfed3e75
commit 540d58d5bd
10 changed files with 129 additions and 8 deletions
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pkg/cluster/sync.go
+1 -1
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@@ -90,7 +90,7 @@ func (c *Cluster) Sync(newSpec *acidv1.Postgresql) error {
}
// create database objects unless we are running without pods or disabled that feature explicitly
if !(c.databaseAccessDisabled() || c.getNumberOfInstances(&newSpec.Spec) <= 0) {
if !(c.databaseAccessDisabled() || c.getNumberOfInstances(&newSpec.Spec) <= 0 || c.Spec.StandbyCluster != nil) {
c.logger.Debugf("syncing roles")
if err = c.syncRoles(); err != nil {
err = fmt.Errorf("could not sync roles: %v", err)