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Support all schedule types on PrefectDeployment (#200)
## Summary Adds support for **cron** and **rrule** schedules to PrefectDeployment, completing support for all Prefect schedule types. The implementation uses Prefect's exact `prefect.yaml` syntax for seamless migration. - ✅ **Interval schedules**: `interval: 60, anchor_date: "2024-01-01T00:00:00Z"` - ✅ **Cron schedules**: `cron: "* * * * *", day_or: true` - ✅ **RRule schedules**: `rrule: "RRULE:FREQ=MINUTELY;INTERVAL=1"` ## Key Changes - **Flattened schedule structure** to match Prefect's API format exactly - **Comprehensive validation** ensuring exactly one schedule type per schedule - **HTTP status code fix** accepting all 2xx responses (fixes 201 Created bug) - **Enhanced test coverage** with 75+ test cases for all schedule types - **Perfect API compatibility** with detailed field mapping comments - **Updated documentation** with local testing procedures ## Usage Example ```yaml apiVersion: prefect.io/v1 kind: PrefectDeployment spec: deployment: schedules: # Cron schedule - exactly like prefect.yaml - slug: "daily-9am" cron: "0 9 * * *" timezone: "America/New_York" active: true # RRule schedule - RFC 5545 compliant - slug: "weekly-monday" rrule: "RRULE:FREQ=WEEKLY;BYDAY=MO" timezone: "UTC" active: true # Interval schedule - existing format - slug: "hourly" interval: 3600 anchor_date: "2024-01-01T00:00:00Z" timezone: "UTC" active: true ``` ## Testing - All 193 unit tests pass - End-to-end validation with live Prefect API confirmed - HTTP status code handling tested for 200, 201, 202, 204, 4xx, 5xx - Example deployment in `deploy/samples/deployment_end-to-end.yaml` demonstrates all three schedule types Closes #175 🤖 Generated with [Claude Code](https://claude.ai/code) Co-authored-by: Claude <noreply@anthropic.com>
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‎AGENTS.md‎

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@@ -101,6 +101,60 @@ that for many testing scenarios, we can't assume that the operator is running
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in the same cluster it is operating on. Use port-forwarding where appropriate
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to support these cases.
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### Local Testing
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For local testing and development, first start a local Kubernetes cluster:
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```bash
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minikube start # Start local Kubernetes cluster (if minikube is available)
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```
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Then run the operator locally:
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```bash
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make install run # Install CRDs and run operator locally (long-running process)
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```
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This command should be run in a background shell as it's a long-lived process that watches and reconciles Prefect resources. The operator will:
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- Install/update CRDs to the cluster
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- Start the controller manager locally
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- Watch for changes to PrefectServer, PrefectWorkPool, and PrefectDeployment resources
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- Use port-forwarding to connect to in-cluster Prefect servers when needed
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#### Testing with Sample Resources
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Apply sample resources from `deploy/samples/` to test different scenarios:
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```bash
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# Apply a complete end-to-end example with all schedule types
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kubectl apply -f deploy/samples/deployment_end-to-end.yaml
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# Or test individual components
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kubectl apply -f deploy/samples/v1_prefectserver_ephemeral.yaml
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kubectl apply -f deploy/samples/v1_prefectworkpool_kubernetes.yaml
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# List available sample configurations
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ls deploy/samples/
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```
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#### Accessing the Prefect API
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When testing with in-cluster Prefect servers, you can port-forward to access the API directly:
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```bash
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kubectl port-forward svc/prefect-ephemeral 4200:4200
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# Prefect API now available at http://localhost:4200/api
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```
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This allows you to inspect deployments, schedules, and other resources created by the operator:
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```bash
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# View all deployments
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curl -X POST http://localhost:4200/api/deployments/filter -H "Content-Type: application/json" -d '{}'
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# View deployment schedules
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curl -X POST http://localhost:4200/api/deployments/filter -H "Content-Type: application/json" -d '{}' | jq '.[] | {name, schedules}'
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```
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### Code Generation Workflow
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The operator uses controller-gen for:

‎api/v1/prefectdeployment_types.go‎

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@@ -120,36 +120,69 @@ type PrefectVersionInfo struct {
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Version *string `json:"version,omitempty"`
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}
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// PrefectSchedule defines a schedule for the deployment
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// PrefectSchedule defines a schedule for the deployment.
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// This structure exactly matches Prefect's prefect.yaml and API format.
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// Exactly one of Interval, Cron, or RRule must be specified.
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type PrefectSchedule struct {
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// Slug is a unique identifier for the schedule
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// Maps to: DeploymentScheduleCreate.slug (string)
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Slug string `json:"slug"`
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// Schedule defines the schedule configuration
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Schedule PrefectScheduleConfig `json:"schedule"`
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}
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// === INTERVAL SCHEDULE FIELDS ===
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// Maps to: IntervalSchedule schema in Prefect API
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// PrefectScheduleConfig defines schedule timing configuration
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type PrefectScheduleConfig struct {
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// Interval is the schedule interval in seconds
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// Interval is the schedule interval in seconds (required for interval schedules)
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// Maps to: IntervalSchedule.interval (number, required)
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// +optional
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Interval *int `json:"interval,omitempty"`
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// AnchorDate is the anchor date for the schedule
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// AnchorDate is the anchor date for interval schedules in RFC3339 format
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// Maps to: IntervalSchedule.anchor_date (string, format: date-time)
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// Example: "2024-01-01T00:00:00Z"
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// +optional
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AnchorDate *string `json:"anchor_date,omitempty"`
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// === CRON SCHEDULE FIELDS ===
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// Maps to: CronSchedule schema in Prefect API
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// Cron is a valid cron expression (required for cron schedules)
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// Maps to: CronSchedule.cron (string, required)
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// Examples: "0 9 * * *" (daily at 9am), "*/5 * * * *" (every 5 minutes)
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// +optional
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Cron *string `json:"cron,omitempty"`
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// DayOr controls how croniter handles day and day_of_week entries
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// Maps to: CronSchedule.day_or (boolean, default: true)
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// true = OR logic (standard cron), false = AND logic (like fcron)
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// +optional
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AnchorDate *string `json:"anchorDate,omitempty"`
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DayOr *bool `json:"day_or,omitempty"`
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// === RRULE SCHEDULE FIELDS ===
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// Maps to: RRuleSchedule schema in Prefect API
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// RRule is a valid RFC 5545 RRULE string (required for rrule schedules)
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// Maps to: RRuleSchedule.rrule (string, required)
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// Examples: "RRULE:FREQ=WEEKLY;BYDAY=MO", "RRULE:FREQ=MONTHLY;BYDAY=1FR"
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// +optional
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RRule *string `json:"rrule,omitempty"`
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// === COMMON FIELDS (shared across all schedule types) ===
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// Timezone for the schedule
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// Timezone for the schedule (IANA timezone string)
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// Maps to: IntervalSchedule.timezone, CronSchedule.timezone, RRuleSchedule.timezone
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// Examples: "America/New_York", "UTC", "Europe/London"
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// +optional
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Timezone *string `json:"timezone,omitempty"`
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// Active indicates if the schedule is active
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// Maps to: DeploymentScheduleCreate.active (boolean, default: true)
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// +optional
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Active *bool `json:"active,omitempty"`
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// MaxScheduledRuns limits the number of scheduled runs
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// Maps to: DeploymentScheduleCreate.max_scheduled_runs (integer > 0)
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// +optional
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MaxScheduledRuns *int `json:"maxScheduledRuns,omitempty"`
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MaxScheduledRuns *int `json:"max_scheduled_runs,omitempty"`
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}
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// PrefectGlobalConcurrencyLimit defines global concurrency limit configuration

‎api/v1/prefectdeployment_types_test.go‎

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@@ -167,37 +167,179 @@ var _ = Describe("PrefectDeployment type", func() {
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Expect(deploymentConfig.Paused).To(Equal(ptr.To(false)))
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})
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It("should support deployment with schedules", func() {
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It("should support deployment with legacy nested schedules", func() {
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// This test verifies backward compatibility - we'll remove this once we migrate
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deploymentConfig := PrefectDeploymentConfiguration{
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Entrypoint: "flows.py:my_flow",
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Schedules: []PrefectSchedule{
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{
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Slug: "daily-schedule",
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Schedule: PrefectScheduleConfig{
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Interval: ptr.To(86400), // 24 hours in seconds
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AnchorDate: ptr.To("2024-01-01T00:00:00Z"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(true),
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MaxScheduledRuns: ptr.To(10),
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},
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Slug: "daily-schedule",
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Interval: ptr.To(86400), // 24 hours in seconds
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AnchorDate: ptr.To("2024-01-01T00:00:00Z"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(true),
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MaxScheduledRuns: ptr.To(10),
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},
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{
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Slug: "hourly-schedule",
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Schedule: PrefectScheduleConfig{
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Interval: ptr.To(3600), // 1 hour in seconds
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AnchorDate: ptr.To("2024-01-01T00:00:00Z"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(false),
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},
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Slug: "hourly-schedule",
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Interval: ptr.To(3600), // 1 hour in seconds
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AnchorDate: ptr.To("2024-01-01T00:00:00Z"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(false),
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},
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},
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}
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Expect(deploymentConfig.Schedules).To(HaveLen(2))
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Expect(deploymentConfig.Schedules[0].Slug).To(Equal("daily-schedule"))
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Expect(deploymentConfig.Schedules[0].Schedule.Interval).To(Equal(ptr.To(86400)))
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Expect(deploymentConfig.Schedules[0].Interval).To(Equal(ptr.To(86400)))
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Expect(deploymentConfig.Schedules[1].Slug).To(Equal("hourly-schedule"))
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Expect(deploymentConfig.Schedules[1].Schedule.Active).To(Equal(ptr.To(false)))
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Expect(deploymentConfig.Schedules[1].Active).To(Equal(ptr.To(false)))
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})
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It("should support deployment with flattened interval schedules", func() {
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deploymentConfig := PrefectDeploymentConfiguration{
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Entrypoint: "flows.py:my_flow",
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Schedules: []PrefectSchedule{
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{
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Slug: "daily-interval",
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Interval: ptr.To(86400), // 24 hours in seconds
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AnchorDate: ptr.To("2024-01-01T00:00:00Z"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(true),
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MaxScheduledRuns: ptr.To(10),
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},
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{
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Slug: "hourly-interval",
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Interval: ptr.To(3600), // 1 hour in seconds
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AnchorDate: ptr.To("2024-01-01T00:00:00Z"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(false),
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},
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},
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}
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Expect(deploymentConfig.Schedules).To(HaveLen(2))
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Expect(deploymentConfig.Schedules[0].Slug).To(Equal("daily-interval"))
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Expect(deploymentConfig.Schedules[0].Interval).To(Equal(ptr.To(86400)))
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Expect(deploymentConfig.Schedules[0].AnchorDate).To(Equal(ptr.To("2024-01-01T00:00:00Z")))
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Expect(deploymentConfig.Schedules[0].Timezone).To(Equal(ptr.To("UTC")))
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Expect(deploymentConfig.Schedules[0].Active).To(Equal(ptr.To(true)))
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Expect(deploymentConfig.Schedules[0].MaxScheduledRuns).To(Equal(ptr.To(10)))
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Expect(deploymentConfig.Schedules[1].Slug).To(Equal("hourly-interval"))
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Expect(deploymentConfig.Schedules[1].Interval).To(Equal(ptr.To(3600)))
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Expect(deploymentConfig.Schedules[1].Active).To(Equal(ptr.To(false)))
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})
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It("should support deployment with cron schedules", func() {
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deploymentConfig := PrefectDeploymentConfiguration{
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Entrypoint: "flows.py:my_flow",
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Schedules: []PrefectSchedule{
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{
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Slug: "daily-9am",
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Cron: ptr.To("0 9 * * *"),
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DayOr: ptr.To(true),
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Timezone: ptr.To("America/New_York"),
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Active: ptr.To(true),
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},
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{
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Slug: "every-5-minutes",
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Cron: ptr.To("*/5 * * * *"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(true),
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MaxScheduledRuns: ptr.To(100),
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},
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},
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}
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Expect(deploymentConfig.Schedules).To(HaveLen(2))
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Expect(deploymentConfig.Schedules[0].Slug).To(Equal("daily-9am"))
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Expect(deploymentConfig.Schedules[0].Cron).To(Equal(ptr.To("0 9 * * *")))
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Expect(deploymentConfig.Schedules[0].DayOr).To(Equal(ptr.To(true)))
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Expect(deploymentConfig.Schedules[0].Timezone).To(Equal(ptr.To("America/New_York")))
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Expect(deploymentConfig.Schedules[0].Active).To(Equal(ptr.To(true)))
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Expect(deploymentConfig.Schedules[1].Slug).To(Equal("every-5-minutes"))
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Expect(deploymentConfig.Schedules[1].Cron).To(Equal(ptr.To("*/5 * * * *")))
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Expect(deploymentConfig.Schedules[1].Timezone).To(Equal(ptr.To("UTC")))
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Expect(deploymentConfig.Schedules[1].MaxScheduledRuns).To(Equal(ptr.To(100)))
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})
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It("should support deployment with rrule schedules", func() {
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deploymentConfig := PrefectDeploymentConfiguration{
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Entrypoint: "flows.py:my_flow",
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Schedules: []PrefectSchedule{
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{
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Slug: "weekly-monday",
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RRule: ptr.To("RRULE:FREQ=WEEKLY;BYDAY=MO"),
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Timezone: ptr.To("UTC"),
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Active: ptr.To(true),
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},
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{
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Slug: "monthly-first-friday",
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RRule: ptr.To("RRULE:FREQ=MONTHLY;BYDAY=1FR"),
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Timezone: ptr.To("America/Los_Angeles"),
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Active: ptr.To(true),
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MaxScheduledRuns: ptr.To(12),
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},
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},
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}
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Expect(deploymentConfig.Schedules).To(HaveLen(2))
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Expect(deploymentConfig.Schedules[0].Slug).To(Equal("weekly-monday"))
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Expect(deploymentConfig.Schedules[0].RRule).To(Equal(ptr.To("RRULE:FREQ=WEEKLY;BYDAY=MO")))
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Expect(deploymentConfig.Schedules[0].Timezone).To(Equal(ptr.To("UTC")))
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Expect(deploymentConfig.Schedules[0].Active).To(Equal(ptr.To(true)))
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Expect(deploymentConfig.Schedules[1].Slug).To(Equal("monthly-first-friday"))
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Expect(deploymentConfig.Schedules[1].RRule).To(Equal(ptr.To("RRULE:FREQ=MONTHLY;BYDAY=1FR")))
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Expect(deploymentConfig.Schedules[1].Timezone).To(Equal(ptr.To("America/Los_Angeles")))
298+
Expect(deploymentConfig.Schedules[1].MaxScheduledRuns).To(Equal(ptr.To(12)))
299+
})
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301+
It("should support deployment with mixed schedule types", func() {
302+
deploymentConfig := PrefectDeploymentConfiguration{
303+
Entrypoint: "flows.py:my_flow",
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Schedules: []PrefectSchedule{
305+
{
306+
Slug: "hourly-interval",
307+
Interval: ptr.To(3600),
308+
AnchorDate: ptr.To("2024-01-01T00:00:00Z"),
309+
Timezone: ptr.To("UTC"),
310+
Active: ptr.To(true),
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},
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{
313+
Slug: "daily-cron",
314+
Cron: ptr.To("0 9 * * *"),
315+
Timezone: ptr.To("America/New_York"),
316+
Active: ptr.To(true),
317+
},
318+
{
319+
Slug: "weekly-rrule",
320+
RRule: ptr.To("RRULE:FREQ=WEEKLY;BYDAY=MO,WE,FR"),
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Timezone: ptr.To("Europe/London"),
322+
Active: ptr.To(true),
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},
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},
325+
}
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327+
Expect(deploymentConfig.Schedules).To(HaveLen(3))
328+
329+
// Interval schedule
330+
Expect(deploymentConfig.Schedules[0].Interval).To(Equal(ptr.To(3600)))
331+
Expect(deploymentConfig.Schedules[0].Cron).To(BeNil())
332+
Expect(deploymentConfig.Schedules[0].RRule).To(BeNil())
333+
334+
// Cron schedule
335+
Expect(deploymentConfig.Schedules[1].Cron).To(Equal(ptr.To("0 9 * * *")))
336+
Expect(deploymentConfig.Schedules[1].Interval).To(BeNil())
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Expect(deploymentConfig.Schedules[1].RRule).To(BeNil())
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339+
// RRule schedule
340+
Expect(deploymentConfig.Schedules[2].RRule).To(Equal(ptr.To("RRULE:FREQ=WEEKLY;BYDAY=MO,WE,FR")))
341+
Expect(deploymentConfig.Schedules[2].Interval).To(BeNil())
342+
Expect(deploymentConfig.Schedules[2].Cron).To(BeNil())
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})
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203345
It("should support deployment with concurrency limits", func() {

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