Approval Domain

The Approval domain provides configurable approval workflows for API and event subscriptions. It supports multiple approval strategies, tracks state through a finite state machine, and integrates with the Notification domain to keep all parties informed.

Custom Resources

Approval

Approval is the Schema for the approvals API

Group: approval.cp.ei.telekom.de · Version: v1 · Scope: Namespaced

ApprovalSpec

Appears in: Approval

ApprovalSpec defines the desired state of Approval

Field	Type	Default	Validation
action	string	unknown	Required
approvedRequest	ApprovedRequest	—	Optional
decider	Decider	—	Optional
decisions	Decisions[]		Required, maxItems: 5
requester	Requester	—	Required
state	string	Pending	Required, Enum: Pending \| Semigranted \| Granted \| Rejected \| Suspended \| Expired
strategy	string	Auto	Required, Enum: Auto \| Simple \| FourEyes
target	ApplicationRef	—	Required

ApprovedRequest

Appears in: ApprovalSpec, ApprovalStatus, ApprovalExpirationSpec, SentReminder, ApprovalRequestStatus

ApprovedRequest contains the reference to the request that was approved with this approval

Field	Type	Default	Validation
name	string	—	Required
namespace	string	—	Required
uid	string	—	Optional

Decider

Appears in: ApprovalSpec, ApprovalRequestSpec

Decider contains the information about the entity that owns the requested object

Field	Type	Default	Validation
applicationRef	ApplicationRef	—	Optional
teamEmail	string	—	Optional
teamName	string	—	Optional

ApplicationRef

Appears in: Decider, Requester, ApprovalSpec, ApprovalRequestSpec

ApplicationRef is a reference to the application that decides on the approval request

Field	Type	Default	Validation
apiVersion	string	—	Optional
kind	string	—	Optional
name	string	—	Required
namespace	string	—	Required
uid	string	—	Optional

Decisions

Appears in: ApprovalSpec, ApprovalRequestSpec

Decisions contains information about who or what changed this approval Only the most recent MaxDecisions entries are retained; older ones are dropped by the mutating webhook.

Field	Type	Default	Validation
comment	string	—	Optional
email	string	—	Optional
name	string	—	Required
resultingState	string	—	Required, Enum: Pending \| Semigranted \| Granted \| Rejected \| Suspended \| Expired
timestamp	string	—	Optional, Format: date-time

Requester

Appears in: ApprovalSpec, ApprovalRequestSpec

Requester contains the information about the entity that is requesting access

Field	Type	Default	Validation
applicationRef	ApplicationRef	—	Optional
properties	object	—	Optional
reason	string	—	Required
teamEmail	string	—	Required
teamName	string	—	Required

ApprovalStatus

Appears in: Approval

ApprovalStatus defines the observed state of Approval

Field	Type	Default	Validation
availableTransitions	AvailableTransition[]	—	Optional
conditions	Condition[]	—	Optional
expiresAt	string	—	Optional, Format: date-time
lastState	string	Pending	Optional, Enum: Pending \| Semigranted \| Granted \| Rejected \| Suspended \| Expired
notificationRefs	ApprovedRequest[]	—	Optional

AvailableTransition

Appears in: ApprovalStatus, ApprovalRequestStatus

Field	Type	Default	Validation
action	string	—	Required
to	string	—	Required

Condition

Appears in: ApprovalStatus, ApprovalExpirationStatus, ApprovalRequestStatus

Field	Type	Default	Validation
lastTransitionTime	string	—	Required, Format: date-time
message	string	—	Required, maxLength: 32768
observedGeneration	integer	—	Optional, Format: int64, minimum: 0
reason	string	—	Required, minLength: 1, maxLength: 1024, pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
status	string	—	Required, Enum: True \| False \| Unknown
type	string	—	Required, maxLength: 316, pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$

ApprovalExpiration

ApprovalExpiration is the Schema for the approvalexpirations API.

Group: approval.cp.ei.telekom.de · Version: v1 · Scope: Namespaced

ApprovalExpirationSpec

Appears in: ApprovalExpiration

ApprovalExpirationSpec defines the desired state of ApprovalExpiration.

Field	Type	Default	Validation
approval	ApprovedRequest	—	Required
expiration	string	—	Required, Format: date-time
thresholds	Thresholds[]	—	Optional

Thresholds

Appears in: ApprovalExpirationSpec

Thresholds defines when reminders should be sent relative to the expiration deadline. For example: [{Before: "720h"}, {Before: "168h", Repeat: "24h"}] sends one reminder 30 days before expiration, then daily reminders starting 7 days before.

Field	Type	Default	Validation
before	string	—	Required
repeat	string	—	Optional

ApprovalExpirationStatus

Appears in: ApprovalExpiration

ApprovalExpirationStatus defines the observed state of ApprovalExpiration.

Field	Type	Default	Validation
conditions	Condition[]	—	Optional
sentReminders	SentReminder[]	—	Optional

SentReminder

Appears in: ApprovalExpirationStatus

SentReminders tracks which reminder notifications have already been sent.

Field	Type	Default	Validation
ref	ApprovedRequest	—	Required
sentAt	string	—	Required, Format: date-time
threshold	string	—	Required

ApprovalRequest

ApprovalRequest is the Schema for the approvalrequests API

Group: approval.cp.ei.telekom.de · Version: v1 · Scope: Namespaced

ApprovalRequestSpec

Appears in: ApprovalRequest

ApprovalRequestSpec defines the desired state of ApprovalRequest

Field	Type	Default	Validation
action	string	unknown	Required
decider	Decider	—	Optional
decisions	Decisions[]		Required, maxItems: 5
requester	Requester	—	Required
state	string	Pending	Required, Enum: Pending \| Granted \| Semigranted \| Rejected
strategy	string	Auto	Required, Enum: Auto \| Simple \| FourEyes
target	ApplicationRef	—	Required

ApprovalRequestStatus

Appears in: ApprovalRequest

ApprovalRequestStatus defines the observed state of ApprovalRequest

Field	Type	Default	Validation
approval	ApprovedRequest	—	Required
availableTransitions	AvailableTransition[]	—	Optional
conditions	Condition[]	—	Optional
lastState	string	Pending	Optional, Enum: Pending \| Granted \| Semigranted \| Rejected
notificationRefs	ApprovedRequest[]	—	Optional

Approval Strategies

Auto

The subscription is approved immediately. No human intervention is required.

Created ──▶ Granted

Simple

A single approver from the provider team must grant the request.

Created ──▶ Pending ──▶ Granted
                    └──▶ Rejected

FourEyes

Two separate approvers from the provider team must independently grant the request (dual-control principle).

Created ──▶ Pending ──▶ SemiGranted ──▶ Granted
                    └──▶ Rejected

Decision history

Every state change records a decision in spec.decisions on the Approval and the ApprovalRequest. The list is a rolling window: only the 5 most recent decisions are retained. When a sixth decision is recorded, the oldest one is dropped automatically by the admission webhook, so no client needs to trim the list itself. Decisions beyond that window are not preserved anywhere.

FourEyes validation is unaffected by this, because it only inspects the two most recent decisions to confirm that they were made by different people.

Trusted Teams

API and event providers can designate specific teams as trusted. When a trusted team subscribes, the approval is granted automatically regardless of the configured strategy. This is useful for pre-authorized internal services.

Notifications

The Approval domain creates Notification resources at key points in the lifecycle:

• Request created — Provider team is notified of a new subscription request
• State changed — Both parties are notified when an approval is granted, rejected, or suspended

Notification names are deterministic, so the same notification can be produced by several reconciles. Each Notification is therefore referenced at most once in status.notificationRefs. The field is a map-typed list keyed on namespace and name, so uniqueness is enforced by the CRD schema; the controllers normalise any duplicates left over from older objects before their next status write.

Domain Interactions

• API domain — ApiSubscription resources trigger approval creation.
• Event domain — EventSubscription resources trigger approval creation.
• Notification domain — Approval lifecycle events create notifications.

Related Pages

• User Journey: Approvals
• Architecture: API Domain