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new 88d106d [SPARK-52471] Add `Swift`-based `SparkPi` K8s `CronJob`
example
88d106d is described below
commit 88d106dad203fbac556a00ee2f027cf5f8b86f60
Author: Dongjoon Hyun <[email protected]>
AuthorDate: Fri Jun 13 09:27:09 2025 -0700
[SPARK-52471] Add `Swift`-based `SparkPi` K8s `CronJob` example
### What changes were proposed in this pull request?
This PR aims to add [Swift-based
SparkPi](https://github.com/apache/spark-connect-swift/tree/main/Examples/pi)
K8s
[CronJob](https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/)
example.
### Why are the changes needed?
To provide a working example with
- [Apache Spark 4.0.0 Connect Server](https://spark.apache.org/docs/4.0.0/)
launched by [Apache Spark Kubernetes Operator
0.3.0](https://artifacthub.io/packages/helm/spark-kubernetes-operator/spark-kubernetes-operator)
Helm chart.
- [SparkPi Swift
App](https://github.com/apache/spark-connect-swift/tree/main/Examples/pi)
developed with [Apache Spark Connect for Swift
0.3.0](https://swiftpackageindex.com/apache/spark-connect-swift) library.
- [Swift 6.1](https://www.swift.org) language
### Does this PR introduce _any_ user-facing change?
No behavior change because this is a new example.
### How was this patch tested?
Manual tests.
```bash
# Install Spark K8s Operator
$ helm install spark spark/spark-kubernetes-operator
# Launch Spark 4.0 Connect Server
$ kubectl apply -f examples/spark-connect-server.yaml
# Launch `Swift-based SparkPi` Application
$ kubectl apply -f examples/job/cron-pi-swift.yaml
$ kubectl get cronjob
NAME SCHEDULE TIMEZONE SUSPEND ACTIVE LAST
SCHEDULE AGE
spark-connect-swift-pi * * * * * <none> False 1 2s
7m51s
$ kubectl get pod -l job-name
NAME READY STATUS RESTARTS AGE
spark-connect-swift-pi-29163859-mkh5p 0/1 Completed 0 2m31s
spark-connect-swift-pi-29163860-btc66 0/1 Completed 0 91s
spark-connect-swift-pi-29163861-68mmt 0/1 Completed 0 31s
```
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes #243 from dongjoon-hyun/SPARK-52471.
Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>
---
examples/job/cron-pi-swift.yaml | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/examples/job/cron-pi-swift.yaml b/examples/job/cron-pi-swift.yaml
new file mode 100644
index 0000000..84a1e11
--- /dev/null
+++ b/examples/job/cron-pi-swift.yaml
@@ -0,0 +1,31 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+ name: spark-connect-swift-pi
+spec:
+ schedule: "* * * * *"
+ jobTemplate:
+ spec:
+ template:
+ spec:
+ containers:
+ - name: job
+ image: apache/spark-connect-swift:pi
+ env:
+ - name: SPARK_REMOTE
+ value: 'sc://spark-connect-server-0-driver-svc:15002'
+ restartPolicy: Never
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