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Merge pull request #31631 from tengqm/fix-gc-cascade 

Fix the cascading deletion page
This commit is contained in:
Kubernetes Prow Robot 2022-02-13 23:09:28 -08:00 committed by GitHub
parent 7ef7a39cf1 d4f6e0be55
commit 1f4ca9f802
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content/en/docs/tasks/administer-cluster/use-cascading-deletion.md
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@ -5,7 +5,8 @@ content_type: task
<!--overview-->
This page shows you how to specify the type of [cascading deletion](/docs/concepts/workloads/controllers/garbage-collection/#cascading-deletion)
This page shows you how to specify the type of
[cascading deletion](/docs/concepts/architecture/garbage-collection/#cascading-deletion)
to use in your cluster during {{<glossary_tooltip text="garbage collection" term_id="garbage-collection">}}.
## {{% heading "prerequisites" %}}
@ -26,7 +27,7 @@ kubectl get pods -l app=nginx --output=yaml
The output has an `ownerReferences` field similar to this:
```
```yaml
apiVersion: v1
...
ownerReferences:
@ -41,7 +42,7 @@ apiVersion: v1
## Use foreground cascading deletion {#use-foreground-cascading-deletion}
By default, Kubernetes uses [background cascading deletion](/docs/concepts/workloads/controllers/garbage-collection/#background-deletion)
By default, Kubernetes uses [background cascading deletion](/docs/concepts/architecture/garbage-collection/#background-deletion)
to delete dependents of an object. You can switch to foreground cascading deletion
using either `kubectl` or the Kubernetes API, depending on the Kubernetes
version your cluster runs. {{<version-check>}}
@ -64,9 +65,9 @@ kubectl delete deployment nginx-deployment --cascade=foreground
1. Start a local proxy session:
```shell
kubectl proxy --port=8080
```
```shell
kubectl proxy --port=8080
```
1. Use `curl` to trigger deletion:
@ -80,19 +81,19 @@ kubectl delete deployment nginx-deployment --cascade=foreground
like this:
```
"kind": "Deployment",
"apiVersion": "apps/v1",
"metadata": {
"name": "nginx-deployment",
"namespace": "default",
"uid": "d1ce1b02-cae8-4288-8a53-30e84d8fa505",
"resourceVersion": "1363097",
"creationTimestamp": "2021-07-08T20:24:37Z",
"deletionTimestamp": "2021-07-08T20:27:39Z",
"finalizers": [
"foregroundDeletion"
]
...
"kind": "Deployment",
"apiVersion": "apps/v1",
"metadata": {
"name": "nginx-deployment",
"namespace": "default",
"uid": "d1ce1b02-cae8-4288-8a53-30e84d8fa505",
"resourceVersion": "1363097",
"creationTimestamp": "2021-07-08T20:24:37Z",
"deletionTimestamp": "2021-07-08T20:27:39Z",
"finalizers": [
"foregroundDeletion"
]
...
```
{{% /tab %}}
@ -104,9 +105,9 @@ For details, read the [documentation for your Kubernetes version](/docs/home/sup
1. Start a local proxy session:
```shell
kubectl proxy --port=8080
```
```shell
kubectl proxy --port=8080
```
1. Use `curl` to trigger deletion:
@ -120,19 +121,19 @@ For details, read the [documentation for your Kubernetes version](/docs/home/sup
like this:
```
"kind": "Deployment",
"apiVersion": "apps/v1",
"metadata": {
"name": "nginx-deployment",
"namespace": "default",
"uid": "d1ce1b02-cae8-4288-8a53-30e84d8fa505",
"resourceVersion": "1363097",
"creationTimestamp": "2021-07-08T20:24:37Z",
"deletionTimestamp": "2021-07-08T20:27:39Z",
"finalizers": [
"foregroundDeletion"
]
...
"kind": "Deployment",
"apiVersion": "apps/v1",
"metadata": {
"name": "nginx-deployment",
"namespace": "default",
"uid": "d1ce1b02-cae8-4288-8a53-30e84d8fa505",
"resourceVersion": "1363097",
"creationTimestamp": "2021-07-08T20:24:37Z",
"deletionTimestamp": "2021-07-08T20:27:39Z",
"finalizers": [
"foregroundDeletion"
]
...
```
{{% /tab %}}
{{</tabs>}}
@ -165,32 +166,32 @@ kubectl delete deployment nginx-deployment --cascade=background
1. Start a local proxy session:
```shell
kubectl proxy --port=8080
```
```shell
kubectl proxy --port=8080
```
1. Use `curl` to trigger deletion:
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Background"}' \
-H "Content-Type: application/json"
```
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Background"}' \
-H "Content-Type: application/json"
```
The output is similar to this:
The output is similar to this:
```
"kind": "Status",
"apiVersion": "v1",
...
"status": "Success",
"details": {
"name": "nginx-deployment",
"group": "apps",
"kind": "deployments",
"uid": "cc9eefb9-2d49-4445-b1c1-d261c9396456"
}
```
```
"kind": "Status",
"apiVersion": "v1",
...
"status": "Success",
"details": {
"name": "nginx-deployment",
"group": "apps",
"kind": "deployments",
"uid": "cc9eefb9-2d49-4445-b1c1-d261c9396456"
}
```
{{% /tab %}}
{{% tab name="Versions prior to Kubernetes 1.20.x" %}}
Kubernetes uses background cascading deletion by default, and does so
@ -211,32 +212,32 @@ kubectl delete deployment nginx-deployment --cascade=true
1. Start a local proxy session:
```shell
kubectl proxy --port=8080
```
```shell
kubectl proxy --port=8080
```
1. Use `curl` to trigger deletion:
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Background"}' \
-H "Content-Type: application/json"
```
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Background"}' \
-H "Content-Type: application/json"
```
The output is similar to this:
The output is similar to this:
```
"kind": "Status",
"apiVersion": "v1",
...
"status": "Success",
"details": {
"name": "nginx-deployment",
"group": "apps",
"kind": "deployments",
"uid": "cc9eefb9-2d49-4445-b1c1-d261c9396456"
}
```
```
"kind": "Status",
"apiVersion": "v1",
...
"status": "Success",
"details": {
"name": "nginx-deployment",
"group": "apps",
"kind": "deployments",
"uid": "cc9eefb9-2d49-4445-b1c1-d261c9396456"
}
```
{{% /tab %}}
{{</tabs>}}
@ -264,33 +265,33 @@ kubectl delete deployment nginx-deployment --cascade=orphan
1. Start a local proxy session:
```shell
kubectl proxy --port=8080
```
```shell
kubectl proxy --port=8080
```
1. Use `curl` to trigger deletion:
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Orphan"}' \
-H "Content-Type: application/json"
```
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Orphan"}' \
-H "Content-Type: application/json"
```
The output contains `orphan` in the `finalizers` field, similar to this:
The output contains `orphan` in the `finalizers` field, similar to this:
```
"kind": "Deployment",
"apiVersion": "apps/v1",
"namespace": "default",
"uid": "6f577034-42a0-479d-be21-78018c466f1f",
"creationTimestamp": "2021-07-09T16:46:37Z",
"deletionTimestamp": "2021-07-09T16:47:08Z",
"deletionGracePeriodSeconds": 0,
"finalizers": [
"orphan"
],
...
```
```
"kind": "Deployment",
"apiVersion": "apps/v1",
"namespace": "default",
"uid": "6f577034-42a0-479d-be21-78018c466f1f",
"creationTimestamp": "2021-07-09T16:46:37Z",
"deletionTimestamp": "2021-07-09T16:47:08Z",
"deletionGracePeriodSeconds": 0,
"finalizers": [
"orphan"
],
...
```
{{% /tab %}}
{{% tab name="Versions prior to Kubernetes 1.20.x" %}}
@ -309,33 +310,33 @@ kubectl delete deployment nginx-deployment --cascade=orphan
1. Start a local proxy session:
```shell
kubectl proxy --port=8080
```
```shell
kubectl proxy --port=8080
```
1. Use `curl` to trigger deletion:
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Orphan"}' \
-H "Content-Type: application/json"
```
```shell
curl -X DELETE localhost:8080/apis/apps/v1/namespaces/default/deployments/nginx-deployment \
-d '{"kind":"DeleteOptions","apiVersion":"v1","propagationPolicy":"Orphan"}' \
-H "Content-Type: application/json"
```
The output contains `orphan` in the `finalizers` field, similar to this:
The output contains `orphan` in the `finalizers` field, similar to this:
```
"kind": "Deployment",
"apiVersion": "apps/v1",
"namespace": "default",
"uid": "6f577034-42a0-479d-be21-78018c466f1f",
"creationTimestamp": "2021-07-09T16:46:37Z",
"deletionTimestamp": "2021-07-09T16:47:08Z",
"deletionGracePeriodSeconds": 0,
"finalizers": [
"orphan"
],
...
```
```
"kind": "Deployment",
"apiVersion": "apps/v1",
"namespace": "default",
"uid": "6f577034-42a0-479d-be21-78018c466f1f",
"creationTimestamp": "2021-07-09T16:46:37Z",
"deletionTimestamp": "2021-07-09T16:47:08Z",
"deletionGracePeriodSeconds": 0,
"finalizers": [
"orphan"
],
...
```
{{% /tab %}}
{{</tabs>}}
@ -349,4 +350,4 @@ kubectl get pods -l app=nginx
* Learn about [owners and dependents](/docs/concepts/overview/working-with-objects/owners-dependents/) in Kubernetes.
* Learn about Kubernetes [finalizers](/docs/concepts/overview/working-with-objects/finalizers/).
* Learn about [garbage collection](/docs/concepts/workloads/controllers/garbage-collection/).
* Learn about [garbage collection](/docs/concepts/architecture/garbage-collection/).