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Extend MaintenanceWindows parameter usage (#2810)

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Consider maintenance window when migrating master pods and replacing pods (rolling update)
This commit is contained in:
Polina Bungina
2025-01-15 18:04:36 +01:00
committed by GitHub
parent 46d5ebef6d
commit 8522331cf2
11 changed files with 168 additions and 30 deletions
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pkg/util/patroni/patroni.go
+13 -13
View File
@@ -20,19 +20,19 @@ import (
)
const (
failoverPath = "/failover"
configPath = "/config"
clusterPath = "/cluster"
statusPath = "/patroni"
restartPath = "/restart"
ApiPort = 8008
timeout = 30 * time.Second
switchoverPath = "/switchover"
configPath = "/config"
clusterPath = "/cluster"
statusPath = "/patroni"
restartPath = "/restart"
ApiPort = 8008
timeout = 30 * time.Second
)
// Interface describe patroni methods
type Interface interface {
GetClusterMembers(master *v1.Pod) ([]ClusterMember, error)
Switchover(master *v1.Pod, candidate string) error
Switchover(master *v1.Pod, candidate string, scheduled_at string) error
SetPostgresParameters(server *v1.Pod, options map[string]string) error
SetStandbyClusterParameters(server *v1.Pod, options map[string]interface{}) error
GetMemberData(server *v1.Pod) (MemberData, error)
@@ -103,7 +103,7 @@ func (p *Patroni) httpPostOrPatch(method string, url string, body *bytes.Buffer)
}
}()
if resp.StatusCode != http.StatusOK {
if resp.StatusCode < http.StatusOK || resp.StatusCode >= 300 {
bodyBytes, err := io.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("could not read response: %v", err)
@@ -128,7 +128,7 @@ func (p *Patroni) httpGet(url string) (string, error) {
return "", fmt.Errorf("could not read response: %v", err)
}
if response.StatusCode != http.StatusOK {
if response.StatusCode < http.StatusOK || response.StatusCode >= 300 {
return string(bodyBytes), fmt.Errorf("patroni returned '%d'", response.StatusCode)
}
@@ -136,9 +136,9 @@ func (p *Patroni) httpGet(url string) (string, error) {
}
// Switchover by calling Patroni REST API
func (p *Patroni) Switchover(master *v1.Pod, candidate string) error {
func (p *Patroni) Switchover(master *v1.Pod, candidate string, scheduled_at string) error {
buf := &bytes.Buffer{}
err := json.NewEncoder(buf).Encode(map[string]string{"leader": master.Name, "member": candidate})
err := json.NewEncoder(buf).Encode(map[string]string{"leader": master.Name, "member": candidate, "scheduled_at": scheduled_at})
if err != nil {
return fmt.Errorf("could not encode json: %v", err)
}
@@ -146,7 +146,7 @@ func (p *Patroni) Switchover(master *v1.Pod, candidate string) error {
if err != nil {
return err
}
return p.httpPostOrPatch(http.MethodPost, apiURLString+failoverPath, buf)
return p.httpPostOrPatch(http.MethodPost, apiURLString+switchoverPath, buf)
}
//TODO: add an option call /patroni to check if it is necessary to restart the server