[Improvement] ArangoDB image validation (=>3.10) for ARM64 architecture (#1161)

CHANGELOG.md

@@ -14,6 +14,7 @@
 - (Dependencies) Bump K8S Dependencies to 1.22.15
 - (Bugfix) Unlock broken inspectors
 - (Debug) Allow to send package to stdout
+- (Improvement) ArangoDB image validation (=>3.10) for ARM64 architecture
 
 ## [1.2.20](https://github.com/arangodb/kube-arangodb/tree/1.2.20) (2022-10-25)
 - (Feature) Add action progress

Makefile

@@ -39,7 +39,8 @@ ifndef KEEP_GOPATH
 endif
 
 GOBUILDARGS ?=
-GOVERSION := 1.17-alpine3.15
+GOBASEVERSION := 1.17
+GOVERSION := $(GOBASEVERSION)-alpine3.15
 DISTRIBUTION := alpine:3.15
 
 PULSAR := $(GOBUILDDIR)/bin/pulsar$(shell go env GOEXE)
@@ -482,7 +483,7 @@ patch-chart:
 
 .PHONY: tidy
 tidy:
-	@go mod tidy
+	@go mod tidy -compat=$(GOBASEVERSION)
 
 .PHONY: deps-reload
 deps-reload: tidy init

pkg/apis/deployment/v1/conditions.go

@@ -78,6 +78,8 @@ const (
 	ConditionTypeUpgradeFailed ConditionType = "UpgradeFailed"
 	// ConditionTypeArchitectureMismatch indicates that the member has a different architecture than the deployment.
 	ConditionTypeArchitectureMismatch ConditionType = "ArchitectureMismatch"
+	// ConditionTypeArchitectureChangeCannotBeApplied indicates that the member has a different architecture than the requested one.
+	ConditionTypeArchitectureChangeCannotBeApplied ConditionType = "ArchitectureChangeCannotBeApplied"
 
 	// ConditionTypeMemberMaintenanceMode indicates that Maintenance is enabled on particular member
 	ConditionTypeMemberMaintenanceMode ConditionType = "MemberMaintenanceMode"

pkg/deployment/member/phase_updates.go

@@ -103,6 +103,7 @@ func removeMemberConditionsMapFunc(m *api.MemberStatus) {
 	m.Conditions.Remove(api.MemberReplacementRequired)
 	m.Conditions.Remove(api.ConditionTypePVCResizePending)
 	m.Conditions.Remove(api.ConditionTypeArchitectureMismatch)
+	m.Conditions.Remove(api.ConditionTypeArchitectureChangeCannotBeApplied)
 
 	m.RemoveTerminationsBefore(time.Now().Add(-1 * recentTerminationsKeepPeriod))
 

pkg/deployment/members.go

@@ -30,6 +30,7 @@ import (
 	"github.com/arangodb/kube-arangodb/pkg/apis/shared"
 	"github.com/arangodb/kube-arangodb/pkg/deployment/reconcile"
 	"github.com/arangodb/kube-arangodb/pkg/util/errors"
+	"github.com/arangodb/kube-arangodb/pkg/util/k8sutil"
 )
 
 func (d *Deployment) createAgencyMapping(ctx context.Context) error {
@@ -127,7 +128,13 @@ func (d *Deployment) renderMember(spec api.DeploymentSpec, status *api.Deploymen
 	}
 	deploymentName := apiObject.GetName()
 	role := group.AsRole()
+
 	arch := apiObject.GetAcceptedSpec().Architecture.GetDefault()
+	if arch != api.ArangoDeploymentArchitectureAMD64 && apiObject.Status.CurrentImage.ArangoDBVersion.CompareTo("3.10.0") < 0 {
+		arch = api.ArangoDeploymentArchitectureAMD64
+		d.log.Str("arch", string(arch)).Warn("Cannot render pod with requested arch. It's not supported in ArangoDB < 3.10.0. Defaulting architecture to AMD64")
+		d.CreateEvent(k8sutil.NewCannotSetArchitectureEvent(d.GetAPIObject(), string(arch), id))
+	}
 
 	switch group {
 	case api.ServerGroupSingle:

pkg/deployment/reconcile/plan_builder_context.go

@@ -32,6 +32,8 @@ import (
 
 // PlanBuilderContext contains context methods provided to plan builders.
 type PlanBuilderContext interface {
+	reconciler.DeploymentStatusUpdate
+
 	reconciler.DeploymentInfoGetter
 	reconciler.DeploymentAgencyMaintenance
 	reconciler.ArangoMemberContext

pkg/deployment/reconcile/plan_builder_rotate_arch.go

@@ -22,6 +22,7 @@ package reconcile
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/arangodb/kube-arangodb/pkg/apis/deployment"
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
@@ -45,15 +46,28 @@ func (r *Reconciler) createChangeMemberArchPlan(ctx context.Context,
 
 		if pod, ok := cache.Pod().V1().GetSimple(member.Pod.GetName()); ok {
 			if v, ok := pod.GetAnnotations()[deployment.ArangoDeploymentPodChangeArchAnnotation]; ok {
-				arch := api.ArangoDeploymentArchitectureType(v)
-				if arch.IsArchMismatch(spec.Architecture, member.Architecture) {
-					r.log.
-						Str("pod-name", member.Pod.GetName()).
-						Str("server-group", m.Group.AsRole()).
-						Warn("try changing an Architecture type, but %s", getRequiredRotateMessage(member.Pod.GetName()))
-					p = append(p,
-						actions.NewAction(api.ActionTypeSetCurrentMemberArch, m.Group, member, "Architecture Mismatch").SetArch(arch),
-					)
+				archToApply := api.ArangoDeploymentArchitectureType(v)
+				if archToApply.IsArchMismatch(spec.Architecture, member.Architecture) {
+					if archToApply != api.ArangoDeploymentArchitectureAMD64 && status.CurrentImage.ArangoDBVersion.CompareTo("3.10.0") < 0 {
+						if member.Conditions.Update(api.ConditionTypeArchitectureChangeCannotBeApplied, true,
+							fmt.Sprintf("Member has ArangoDB in version which not supports Architecture change (%s)", archToApply), "") {
+							r.log.Warn("Cannot apply 'arch' annotation changes. It's not supported in ArangoDB < 3.10.0")
+							context.CreateEvent(k8sutil.NewCannotSetArchitectureEvent(apiObject, string(archToApply), member.ID))
+							context.CreateEvent(k8sutil.NewCannotSetArchitectureEvent(pod, string(archToApply), member.ID))
+
+							if err := context.UpdateMember(ctx, member); err != nil {
+								r.log.Error("Can not save member condition", member.ID, api.ConditionTypeArchitectureChangeCannotBeApplied, err)
+							}
+						}
+					} else {
+						r.log.
+							Str("pod-name", member.Pod.GetName()).
+							Str("server-group", m.Group.AsRole()).
+							Warn("try changing an Architecture type, but %s", getRequiredRotateMessage(member.Pod.GetName()))
+						p = append(p,
+							actions.NewAction(api.ActionTypeSetCurrentMemberArch, m.Group, member, "Architecture Mismatch").SetArch(archToApply),
+						)
+					}
 				}
 			}
 		}

pkg/util/k8sutil/events.go

@@ -283,3 +283,12 @@ func NewOperatorEngineOpsAlertEvent(reason string, apiObject APIObject) *Event {
 	event.Message = fmt.Sprintf("Event OperatorEngineOpsAlert raised, investigation needed: %s", reason)
 	return event
 }
+
+// NewCannotSetArchitectureEvent creates an even of type CannotSetArchitectureEvent.
+func NewCannotSetArchitectureEvent(apiObject runtime.Object, arch, memberId string) *Event {
+	event := newDeploymentEvent(apiObject)
+	event.Type = core.EventTypeWarning
+	event.Reason = "Can not set architecture"
+	event.Message = fmt.Sprintf("Can not apply %s arch for member %s. It is not supported in current ArangoDB version", arch, memberId)
+	return event
+}