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Add option to configure multiple PostgreSQL instances
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45 changes: 45 additions & 0 deletions
45
pkg/comp-functions/functions/vshn-postgres-func/replication.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| package vshnpostgres | ||
|
|
||
| import ( | ||
| "context" | ||
|
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| stackgresv1 "github.com/vshn/appcat/apis/stackgres/v1" | ||
| vshnv1 "github.com/vshn/appcat/apis/vshn/v1" | ||
| "github.com/vshn/appcat/pkg/comp-functions/runtime" | ||
| "k8s.io/utils/pointer" | ||
| ) | ||
|
|
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| // ConfigureReplication configures the stackgres replication based on the claim | ||
| func ConfigureReplication(ctx context.Context, iof *runtime.Runtime) runtime.Result { | ||
| comp := &vshnv1.VSHNPostgreSQL{} | ||
| err := iof.Desired.GetComposite(ctx, comp) | ||
| if err != nil { | ||
| return runtime.NewFatalErr(ctx, "Cannot get composite from function io", err) | ||
| } | ||
| cluster := &stackgresv1.SGCluster{} | ||
| err = iof.Desired.GetFromObject(ctx, cluster, "cluster") | ||
| if err != nil { | ||
| return runtime.NewFatalErr(ctx, "not able to get cluster", err) | ||
| } | ||
|
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| cluster = configureReplication(ctx, comp, cluster) | ||
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| err = iof.Desired.PutIntoObject(ctx, cluster, "cluster") | ||
| if err != nil { | ||
| return runtime.NewFatalErr(ctx, "cannot save cluster to functionIO", err) | ||
| } | ||
| return runtime.NewNormal() | ||
| } | ||
|
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| func configureReplication(ctx context.Context, comp *vshnv1.VSHNPostgreSQL, cluster *stackgresv1.SGCluster) *stackgresv1.SGCluster { | ||
| cluster.Spec.Replication = &stackgresv1.SGClusterSpecReplication{ | ||
| Mode: pointer.String("async"), | ||
| SyncInstances: pointer.Int(1), | ||
| } | ||
| cluster.Spec.Instances = comp.Spec.Parameters.Instances | ||
| if comp.Spec.Parameters.Instances > 1 && comp.Spec.Parameters.Replication.Mode != "async" && comp.Spec.Parameters.Replication.Mode != "" { | ||
| cluster.Spec.Replication.Mode = pointer.String(comp.Spec.Parameters.Replication.Mode) | ||
| cluster.Spec.Replication.SyncInstances = pointer.Int(comp.Spec.Parameters.Instances - 1) | ||
| } | ||
| return cluster | ||
| } |
143 changes: 143 additions & 0 deletions
143
pkg/comp-functions/functions/vshn-postgres-func/replication_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| package vshnpostgres | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
|
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| "github.com/stretchr/testify/assert" | ||
| stackgresv1 "github.com/vshn/appcat/apis/stackgres/v1" | ||
| vshnv1 "github.com/vshn/appcat/apis/vshn/v1" | ||
| "github.com/vshn/appcat/pkg/comp-functions/functions/commontest" | ||
| "github.com/vshn/appcat/pkg/comp-functions/runtime" | ||
| ) | ||
|
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| func Test_ConfigureReplication(t *testing.T) { | ||
| ctx := context.TODO() | ||
| iof := commontest.LoadRuntimeFromFile(t, "vshn-postgres/replication/01-GivenMulitInstance.yaml") | ||
|
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| res := ConfigureReplication(ctx, iof) | ||
| assert.Equal(t, runtime.NewNormal(), res) | ||
|
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| cluster := &stackgresv1.SGCluster{} | ||
| assert.NoError(t, iof.Desired.GetFromObject(ctx, cluster, "cluster")) | ||
| assert.Equal(t, 3, cluster.Spec.Instances) | ||
| assert.Equal(t, "sync", *cluster.Spec.Replication.Mode) | ||
| assert.Equal(t, 2, *cluster.Spec.Replication.SyncInstances) | ||
| } | ||
|
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| func Test_configureReplication_SingleInstance(t *testing.T) { | ||
| ctx := context.Background() | ||
| comp := &vshnv1.VSHNPostgreSQL{ | ||
| Spec: vshnv1.VSHNPostgreSQLSpec{ | ||
| Parameters: vshnv1.VSHNPostgreSQLParameters{ | ||
| Instances: 1, | ||
| Replication: vshnv1.VSHNPostgreSQLReplicationStrategy{}, | ||
| }, | ||
| }, | ||
| } | ||
| cluster := &stackgresv1.SGCluster{} | ||
|
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| cluster = configureReplication(ctx, comp, cluster) | ||
|
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| assert.Equal(t, 1, cluster.Spec.Instances) | ||
| assert.Equal(t, "async", *cluster.Spec.Replication.Mode) | ||
| } | ||
|
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| func Test_configureReplication_SingleInstance_Sync(t *testing.T) { | ||
| ctx := context.Background() | ||
| comp := &vshnv1.VSHNPostgreSQL{ | ||
| Spec: vshnv1.VSHNPostgreSQLSpec{ | ||
| Parameters: vshnv1.VSHNPostgreSQLParameters{ | ||
| Instances: 1, | ||
| Replication: vshnv1.VSHNPostgreSQLReplicationStrategy{ | ||
| Mode: "sync", | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| cluster := &stackgresv1.SGCluster{} | ||
|
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| cluster = configureReplication(ctx, comp, cluster) | ||
|
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| assert.Equal(t, 1, cluster.Spec.Instances) | ||
| assert.Equal(t, "async", *cluster.Spec.Replication.Mode) | ||
| } | ||
|
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| func Test_configureReplication_MultiInstance_Async(t *testing.T) { | ||
| ctx := context.Background() | ||
| comp := &vshnv1.VSHNPostgreSQL{ | ||
| Spec: vshnv1.VSHNPostgreSQLSpec{ | ||
| Parameters: vshnv1.VSHNPostgreSQLParameters{ | ||
| Instances: 2, | ||
| Replication: vshnv1.VSHNPostgreSQLReplicationStrategy{ | ||
| Mode: "async", | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| cluster := &stackgresv1.SGCluster{} | ||
|
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| cluster = configureReplication(ctx, comp, cluster) | ||
|
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| assert.Equal(t, 2, cluster.Spec.Instances) | ||
| assert.Equal(t, "async", *cluster.Spec.Replication.Mode) | ||
| } | ||
|
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| func Test_configureReplication_MultiInstance_Sync(t *testing.T) { | ||
| ctx := context.Background() | ||
| comp := &vshnv1.VSHNPostgreSQL{ | ||
| Spec: vshnv1.VSHNPostgreSQLSpec{ | ||
| Parameters: vshnv1.VSHNPostgreSQLParameters{ | ||
| Instances: 2, | ||
| Replication: vshnv1.VSHNPostgreSQLReplicationStrategy{ | ||
| Mode: "sync", | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| cluster := &stackgresv1.SGCluster{} | ||
|
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| cluster = configureReplication(ctx, comp, cluster) | ||
|
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| assert.Equal(t, 2, cluster.Spec.Instances) | ||
| assert.Equal(t, "sync", *cluster.Spec.Replication.Mode) | ||
| assert.Equal(t, 1, *cluster.Spec.Replication.SyncInstances) | ||
| } | ||
|
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| func Test_configureReplication_MultiInstance_StrictSync(t *testing.T) { | ||
| ctx := context.Background() | ||
| comp := &vshnv1.VSHNPostgreSQL{ | ||
| Spec: vshnv1.VSHNPostgreSQLSpec{ | ||
| Parameters: vshnv1.VSHNPostgreSQLParameters{ | ||
| Instances: 3, | ||
| Replication: vshnv1.VSHNPostgreSQLReplicationStrategy{ | ||
| Mode: "strict-sync", | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| cluster := &stackgresv1.SGCluster{} | ||
|
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| cluster = configureReplication(ctx, comp, cluster) | ||
|
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| assert.Equal(t, 3, cluster.Spec.Instances) | ||
| assert.Equal(t, "strict-sync", *cluster.Spec.Replication.Mode) | ||
| assert.Equal(t, 2, *cluster.Spec.Replication.SyncInstances) | ||
| } | ||
|
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| func Test_configureReplication_MultiInstance_Default(t *testing.T) { | ||
| ctx := context.Background() | ||
| comp := &vshnv1.VSHNPostgreSQL{ | ||
| Spec: vshnv1.VSHNPostgreSQLSpec{ | ||
| Parameters: vshnv1.VSHNPostgreSQLParameters{ | ||
| Instances: 3, | ||
| }, | ||
| }, | ||
| } | ||
| cluster := &stackgresv1.SGCluster{} | ||
|
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| cluster = configureReplication(ctx, comp, cluster) | ||
|
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| assert.Equal(t, 3, cluster.Spec.Instances) | ||
| assert.Equal(t, "async", *cluster.Spec.Replication.Mode) | ||
| } |
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