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sync_task.go
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sync_task.go
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package sync
import (
"fmt"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime/schema"
"github.com/vathsalashetty96/gitops-engine/pkg/sync/common"
"github.com/vathsalashetty96/gitops-engine/pkg/sync/hook"
"github.com/vathsalashetty96/gitops-engine/pkg/sync/syncwaves"
"github.com/vathsalashetty96/gitops-engine/pkg/utils/kube"
)
// syncTask holds the live and target object. At least one should be non-nil. A targetObj of nil
// indicates the live object needs to be pruned. A liveObj of nil indicates the object has yet to
// be deployed
type syncTask struct {
phase common.SyncPhase
liveObj *unstructured.Unstructured
targetObj *unstructured.Unstructured
skipDryRun bool
syncStatus common.ResultCode
operationState common.OperationPhase
message string
waveOverride *int
}
func ternary(val bool, a, b string) string {
if val {
return a
} else {
return b
}
}
func (t *syncTask) String() string {
return fmt.Sprintf("%s/%d %s %s/%s:%s/%s %s->%s (%s,%s,%s)",
t.phase, t.wave(),
ternary(t.isHook(), "hook", "resource"), t.group(), t.kind(), t.namespace(), t.name(),
ternary(t.liveObj != nil, "obj", "nil"), ternary(t.targetObj != nil, "obj", "nil"),
t.syncStatus, t.operationState, t.message,
)
}
func (t *syncTask) isPrune() bool {
return t.targetObj == nil
}
func (t *syncTask) resultKey() string {
return resourceResultKey(kube.GetResourceKey(t.obj()), t.phase)
}
// return the target object (if this exists) otherwise the live object
// some caution - often you explicitly want the live object not the target object
func (t *syncTask) obj() *unstructured.Unstructured {
return obj(t.targetObj, t.liveObj)
}
func (t *syncTask) wave() int {
if t.waveOverride != nil {
return *t.waveOverride
}
return syncwaves.Wave(t.obj())
}
func (t *syncTask) isHook() bool {
return hook.IsHook(t.obj())
}
func (t *syncTask) group() string {
return t.groupVersionKind().Group
}
func (t *syncTask) kind() string {
return t.groupVersionKind().Kind
}
func (t *syncTask) version() string {
return t.groupVersionKind().Version
}
func (t *syncTask) groupVersionKind() schema.GroupVersionKind {
return t.obj().GroupVersionKind()
}
func (t *syncTask) name() string {
return t.obj().GetName()
}
func (t *syncTask) namespace() string {
return t.obj().GetNamespace()
}
func (t *syncTask) pending() bool {
return t.operationState == ""
}
func (t *syncTask) running() bool {
return t.operationState.Running()
}
func (t *syncTask) completed() bool {
return t.operationState.Completed()
}
func (t *syncTask) successful() bool {
return t.operationState.Successful()
}
func (t *syncTask) hookType() common.HookType {
if t.isHook() {
return common.HookType(t.phase)
} else {
return ""
}
}
func (t *syncTask) hasHookDeletePolicy(policy common.HookDeletePolicy) bool {
// cannot have a policy if it is not a hook, it is meaningless
if !t.isHook() {
return false
}
for _, p := range hook.DeletePolicies(t.obj()) {
if p == policy {
return true
}
}
return false
}
func (t *syncTask) deleteBeforeCreation() bool {
return t.liveObj != nil && t.pending() && t.hasHookDeletePolicy(common.HookDeletePolicyBeforeHookCreation)
}
func (t *syncTask) deleteOnPhaseCompletion() bool {
return t.deleteOnPhaseFailed() || t.deleteOnPhaseSuccessful()
}
func (t *syncTask) deleteOnPhaseSuccessful() bool {
return t.liveObj != nil && t.hasHookDeletePolicy(common.HookDeletePolicyHookSucceeded)
}
func (t *syncTask) deleteOnPhaseFailed() bool {
return t.liveObj != nil && t.hasHookDeletePolicy(common.HookDeletePolicyHookFailed)
}
func (t *syncTask) resourceKey() kube.ResourceKey {
return kube.GetResourceKey(t.obj())
}