Merge pull request #47180 from windsonsea/viacon

Clean up updating-configuration-via-a-configmap.md

content/en/docs/tutorials/configuration/updating-configuration-via-a-configmap.md

@@ -27,27 +27,32 @@ documentation for your local operating system.
 
 ## Update configuration via a ConfigMap mounted as a Volume {#rollout-configmap-volume}
 
-Use the `kubectl create configmap` command to create a ConfigMap from [literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
+Use the `kubectl create configmap` command to create a ConfigMap from
+[literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
 
 ```shell
 kubectl create configmap sport --from-literal=sport=football
 ```
+
 Below is an example of a Deployment manifest with the ConfigMap `sport` mounted as a
 {{< glossary_tooltip text="volume" term_id="volume" >}} into the Pod's only container.
 {{% code_sample file="deployments/deployment-with-configmap-as-volume.yaml" %}}
 
 Create the Deployment:
+
 ```shell
 kubectl apply -f https://k8s.io/examples/deployments/deployment-with-configmap-as-volume.yaml
 ```
 
 Check the pods for this Deployment to ensure they are ready (matching by
 {{< glossary_tooltip text="selector" term_id="selector" >}}):
+
 ```shell
 kubectl get pods --selector=app.kubernetes.io/name=configmap-volume
 ```
 
 You should see an output similar to:
+
 ```
 NAME                                READY   STATUS    RESTARTS   AGE
 configmap-volume-6b976dfdcf-qxvbm   1/1     Running   0          72s
@@ -61,12 +66,14 @@ The kubelet then mounts that volume into the container, as specified in the Pod
 The code running in that container loads the information from the file
 and uses it to print a report to stdout.
 You can check this report by viewing the logs for one of the Pods in that Deployment:
+
 ```shell
 # Pick one Pod that belongs to the Deployment, and view its logs
 kubectl logs deployments/configmap-volume
 ```
 
 You should see an output similar to:
+
 ```
 Found 3 pods, using pod/configmap-volume-76d9c5678f-x5rgj
 Thu Jan  4 14:06:46 UTC 2024 My preferred sport is football
@@ -77,6 +84,7 @@ Thu Jan  4 14:07:26 UTC 2024 My preferred sport is football
 ```
 
 Edit the ConfigMap:
+
 ```shell
 kubectl edit configmap sport
 ```
@@ -102,15 +110,19 @@ metadata:
 ```
 
 You should see the following output:
+
 ```
 configmap/sport edited
 ```
 
 Tail (follow the latest entries in) the logs of one of the pods that belongs to this Deployment:
+
 ```shell
 kubectl logs deployments/configmap-volume --follow
 ```
+
 After few seconds, you should see the log output change as follows:
+
 ```
 Thu Jan  4 14:11:36 UTC 2024 My preferred sport is football
 Thu Jan  4 14:11:46 UTC 2024 My preferred sport is football
@@ -126,7 +138,6 @@ However, your application only sees the change if it is written to either poll f
 or watch for file updates.  
 An application that loads its configuration once at startup will not notice a change.
 
-
 {{< note >}}
 The total delay from the moment when the ConfigMap is updated to the moment when
 new keys are projected to the Pod can be as long as kubelet sync period.  
@@ -134,27 +145,33 @@ Also check [Mounted ConfigMaps are updated automatically](/docs/tasks/configure-
 {{< /note >}}
 
 ## Update environment variables of a Pod via a ConfigMap {#rollout-configmap-env}
-Use the `kubectl create configmap` command to create a ConfigMap from [literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
+
+Use the `kubectl create configmap` command to create a ConfigMap from
+[literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
 
 ```shell
 kubectl create configmap fruits --from-literal=fruits=apples
 ```
 
 Below is an example of a Deployment manifest with an environment variable configured via the ConfigMap `fruits`.
+
 {{% code_sample file="deployments/deployment-with-configmap-as-envvar.yaml" %}}
 
 Create the Deployment:
+
 ```shell
 kubectl apply -f https://k8s.io/examples/deployments/deployment-with-configmap-as-envvar.yaml
 ```
 
 Check the pods for this Deployment to ensure they are ready (matching by
 {{< glossary_tooltip text="selector" term_id="selector" >}}):
+
 ```shell
 kubectl get pods --selector=app.kubernetes.io/name=configmap-env-var
 ```
 
 You should see an output similar to:
+
 ```
 NAME                                 READY   STATUS    RESTARTS   AGE
 configmap-env-var-59cfc64f7d-74d7z   1/1     Running   0          46s
@@ -164,11 +181,13 @@ configmap-env-var-59cfc64f7d-dpr98   1/1     Running   0          46s
 
 The key-value pair in the ConfigMap is configured as an environment variable in the container of the Pod.
 Check this by viewing the logs of one Pod that belongs to the Deployment.
+
 ```shell
 kubectl logs deployment/configmap-env-var
 ```
 
 You should see an output similar to:
+
 ```
 Found 3 pods, using pod/configmap-env-var-7c994f7769-l74nq
 Thu Jan  4 16:07:06 UTC 2024 The basket is full of apples
@@ -177,6 +196,7 @@ Thu Jan  4 16:07:26 UTC 2024 The basket is full of apples
 ```
 
 Edit the ConfigMap:
+
 ```shell
 kubectl edit configmap fruits
 ```
@@ -185,6 +205,7 @@ In the editor that appears, change the value of key `fruits` from `apples` to `m
 The kubectl tool updates the ConfigMap accordingly (if you see an error, try again).
 
 Here's an example of how that manifest could look after you edit it:
+
 ```yaml
 apiVersion: v1
 data:
@@ -197,21 +218,23 @@ metadata:
   name: fruits
   namespace: default
   resourceVersion: "1749472"
-
 ```
 
 You should see the following output:
+
 ```
 configmap/fruits edited
 ```
 
 Tail the logs of the Deployment and observe the output for few seconds:
+
 ```shell
 # As the text explains, the output does NOT change
 kubectl logs deployments/configmap-env-var --follow
 ```
 
 Notice that the output remains **unchanged**, even though you edited the ConfigMap:
+
 ```
 Thu Jan  4 16:12:56 UTC 2024 The basket is full of apples
 Thu Jan  4 16:13:06 UTC 2024 The basket is full of apples
@@ -220,11 +243,16 @@ Thu Jan  4 16:13:26 UTC 2024 The basket is full of apples
 ```
 
 {{< note >}}
-Although the value of the key inside the ConfigMap has changed, the environment variable in the Pod still shows the earlier value. This is because environment variables for a process running inside a Pod are **not** updated when the source data changes; if you wanted to force an update, you would need to have Kubernetes replace your existing Pods. The new Pods would then run with the updated information.
+Although the value of the key inside the ConfigMap has changed, the environment variable
+in the Pod still shows the earlier value. This is because environment variables for a
+process running inside a Pod are **not** updated when the source data changes; if you
+wanted to force an update, you would need to have Kubernetes replace your existing Pods.
+The new Pods would then run with the updated information.
 {{< /note >}}
 
 You can trigger that replacement. Perform a rollout for the Deployment, using
 [`kubectl rollout`](/docs/reference/kubectl/generated/kubectl_rollout/):
+
 ```shell
 # Trigger the rollout
 kubectl rollout restart deployment configmap-env-var
@@ -234,22 +262,28 @@ kubectl rollout status deployment configmap-env-var --watch=true
 ```
 
 Next, check the Deployment:
+
 ```shell
 kubectl get deployment configmap-env-var
 ```
 
 You should see an output similar to:
+
 ```
 NAME                READY   UP-TO-DATE   AVAILABLE   AGE
 configmap-env-var   3/3     3            3           12m
 ```
 
 Check the Pods:
+
 ```shell
 kubectl get pods --selector=app.kubernetes.io/name=configmap-env-var
 ```
 
-The rollout causes Kubernetes to make a new {{< glossary_tooltip term_id="replica-set" text="ReplicaSet" >}} for the Deployment; that means the existing Pods eventually terminate, and new ones are created. After few seconds, you should see an output similar to:
+The rollout causes Kubernetes to make a new {{< glossary_tooltip term_id="replica-set" text="ReplicaSet" >}}
+for the Deployment; that means the existing Pods eventually terminate, and new ones are created.
+After few seconds, you should see an output similar to:
+
 ```
 NAME                                 READY   STATUS        RESTARTS   AGE
 configmap-env-var-6d94d89bf5-2ph2l   1/1     Running       0          13s
@@ -262,12 +296,14 @@ Please wait for the older Pods to fully terminate before proceeding with the nex
 {{< /note >}}
 
 View the logs for a Pod in this Deployment:
+
 ```shell
 # Pick one Pod that belongs to the Deployment, and view its logs
 kubectl logs deployment/configmap-env-var
 ```
 
 You should see an output similar to the below:
+
 ```
 Found 3 pods, using pod/configmap-env-var-6d9ff89fb6-bzcf6
 Thu Jan  4 16:30:35 UTC 2024 The basket is full of mangoes
@@ -281,59 +317,74 @@ rollout. If Pods get created for another reason, such as scaling up the Deployme
 also use the latest configuration values; if you don't trigger a rollout, then you might find that your
 app is running with a mix of old and new environment variable values.
 
-
 ## Update configuration via a ConfigMap in a multi-container Pod {#rollout-configmap-multiple-containers}
 
-Use the `kubectl create configmap` command to create a ConfigMap from [literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
+Use the `kubectl create configmap` command to create a ConfigMap from
+[literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
 
 ```shell
 kubectl create configmap color --from-literal=color=red
 ```
-Below is an example manifest for a Deployment that manages a set of Pods, each with two containers. The two containers share an `emptyDir` volume that they use to communicate.
+
-The first container runs a web server (`nginx`). The mount path for the shared volume in the web server container is `/usr/share/nginx/html`. The second helper container is based on `alpine`, and for this container the `emptyDir` volume is mounted at `/pod-data`. The helper container writes a file in HTML that has its content based on a ConfigMap. The web server container serves the HTML via HTTP.
+Below is an example manifest for a Deployment that manages a set of Pods, each with two containers.
+The two containers share an `emptyDir` volume that they use to communicate.
+The first container runs a web server (`nginx`). The mount path for the shared volume in the
+web server container is `/usr/share/nginx/html`. The second helper container is based on `alpine`,
+and for this container the `emptyDir` volume is mounted at `/pod-data`. The helper container writes
+a file in HTML that has its content based on a ConfigMap. The web server container serves the HTML via HTTP.
 
 {{% code_sample file="deployments/deployment-with-configmap-two-containers.yaml" %}}
 
 Create the Deployment:
+
 ```shell
 kubectl apply -f https://k8s.io/examples/deployments/deployment-with-configmap-two-containers.yaml
 ```
 
 Check the pods for this Deployment to ensure they are ready (matching by
 {{< glossary_tooltip text="selector" term_id="selector" >}}):
+
 ```shell
 kubectl get pods --selector=app.kubernetes.io/name=configmap-two-containers
 ```
+
 You should see an output similar to:
+
 ```
 NAME                                        READY   STATUS    RESTARTS   AGE
 configmap-two-containers-565fb6d4f4-2xhxf   2/2     Running   0          20s
 configmap-two-containers-565fb6d4f4-g5v4j   2/2     Running   0          20s
 configmap-two-containers-565fb6d4f4-mzsmf   2/2     Running   0          20s
-````
+```
 
 Expose the Deployment (the `kubectl` tool creates a
 {{<glossary_tooltip text="Service" term_id="service">}} for you):
+
 ```shell
 kubectl expose deployment configmap-two-containers --name=configmap-service --port=8080 --target-port=80
 ```
 
 Use `kubectl` to forward the port:
+
 ```shell
-kubectl port-forward service/configmap-service 8080:8080 & # this stays running in the background
+# this stays running in the background
+kubectl port-forward service/configmap-service 8080:8080 &
 ```
 
 Access the service.
+
 ```shell
 curl http://localhost:8080
 ```
 
 You should see an output similar to:
+
 ```
 Fri Jan  5 08:08:22 UTC 2024 My preferred color is red
 ```
 
 Edit the ConfigMap:
+
 ```shell
 kubectl edit configmap color
 ```
@@ -359,12 +410,14 @@ metadata:
 ```
 
 Loop over the service URL for few seconds.
+
 ```shell
 # Cancel this when you're happy with it (Ctrl-C)
 while true; do curl --connect-timeout 7.5 http://localhost:8080; sleep 10; done
 ```
 
 You should see the output change as follows:
+
 ```
 Fri Jan  5 08:14:00 UTC 2024 My preferred color is red
 Fri Jan  5 08:14:02 UTC 2024 My preferred color is red
@@ -377,63 +430,79 @@ Fri Jan  5 08:15:00 UTC 2024 My preferred color is blue
 
 ## Update configuration via a ConfigMap in a Pod possessing a sidecar container {#rollout-configmap-sidecar}
 
-The above scenario can be replicated by using a [Sidecar Container](/docs/concepts/workloads/pods/sidecar-containers/) as a helper container to write the HTML file.  
+The above scenario can be replicated by using a [Sidecar Container](/docs/concepts/workloads/pods/sidecar-containers/)
+as a helper container to write the HTML file.  
 As a Sidecar Container is conceptually an Init Container, it is guaranteed to start before the main web server container.  
 This ensures that the HTML file is always available when the web server is ready to serve it.  
 Please see [Enabling sidecar containers](/docs/concepts/workloads/pods/sidecar-containers/#enabling-sidecar-containers) to utilize this feature.
 
 If you are continuing from the previous scenario, you can reuse the ConfigMap named `color` for this scenario.  
-If you are executing this scenario independently, use the `kubectl create configmap` command to create a ConfigMap from [literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
+If you are executing this scenario independently, use the `kubectl create configmap` command to create a ConfigMap
+from [literal values](/docs/tasks/configure-pod-container/configure-pod-configmap/#create-configmaps-from-literal-values):
 
 ```shell
 kubectl create configmap color --from-literal=color=blue
 ```
 
-Below is an example manifest for a Deployment that manages a set of Pods, each with a main container and a sidecar container. The two containers share an `emptyDir` volume that they use to communicate.
+Below is an example manifest for a Deployment that manages a set of Pods, each with a main container and
-The main container runs a web server (NGINX). The mount path for the shared volume in the web server container is `/usr/share/nginx/html`. The second container is a Sidecar Container based on Alpine Linux which acts as a helper container. For this container the `emptyDir` volume is mounted at `/pod-data`. The Sidecar Container writes a file in HTML that has its content based on a ConfigMap. The web server container serves the HTML via HTTP.
+a sidecar container. The two containers share an `emptyDir` volume that they use to communicate.
+The main container runs a web server (NGINX). The mount path for the shared volume in the web server container
+is `/usr/share/nginx/html`. The second container is a Sidecar Container based on Alpine Linux which acts as
+a helper container. For this container the `emptyDir` volume is mounted at `/pod-data`. The Sidecar Container
+writes a file in HTML that has its content based on a ConfigMap. The web server container serves the HTML via HTTP.
 
 {{% code_sample file="deployments/deployment-with-configmap-and-sidecar-container.yaml" %}}
 
 Create the Deployment:
+
 ```shell
 kubectl apply -f https://k8s.io/examples/deployments/deployment-with-configmap-and-sidecar-container.yaml
 ```
 
 Check the pods for this Deployment to ensure they are ready (matching by
 {{< glossary_tooltip text="selector" term_id="selector" >}}):
+
 ```shell
 kubectl get pods --selector=app.kubernetes.io/name=configmap-sidecar-container
 ```
+
 You should see an output similar to:
+
 ```
 NAME                                           READY   STATUS    RESTARTS   AGE
 configmap-sidecar-container-5fb59f558b-87rp7   2/2     Running   0          94s
 configmap-sidecar-container-5fb59f558b-ccs7s   2/2     Running   0          94s
 configmap-sidecar-container-5fb59f558b-wnmgk   2/2     Running   0          94s
-````
+```
 
 Expose the Deployment (the `kubectl` tool creates a
 {{<glossary_tooltip text="Service" term_id="service">}} for you):
+
 ```shell
 kubectl expose deployment configmap-sidecar-container --name=configmap-sidecar-service --port=8081 --target-port=80
 ```
 
-Use ```kubectl``` to forward the port:
+Use `kubectl` to forward the port:
+
 ```shell
-kubectl port-forward service/configmap-sidecar-service 8081:8081 & # this stays running in the background
+# this stays running in the background
+kubectl port-forward service/configmap-sidecar-service 8081:8081 &
 ```
 
 Access the service.
+
 ```shell
 curl http://localhost:8081
 ```
 
 You should see an output similar to:
+
 ```
 Sat Feb 17 13:09:05 UTC 2024 My preferred color is blue
 ```
 
 Edit the ConfigMap:
+
 ```shell
 kubectl edit configmap color
 ```
@@ -459,12 +528,14 @@ metadata:
 ```
 
 Loop over the service URL for few seconds.
+
 ```shell
 # Cancel this when you're happy with it (Ctrl-C)
 while true; do curl --connect-timeout 7.5 http://localhost:8081; sleep 10; done
 ```
 
 You should see the output change as follows:
+
 ```
 Sat Feb 17 13:12:35 UTC 2024 My preferred color is blue
 Sat Feb 17 13:12:45 UTC 2024 My preferred color is blue
@@ -478,9 +549,11 @@ Sat Feb 17 13:13:35 UTC 2024 My preferred color is green
 ## Update configuration via an immutable ConfigMap that is mounted as a volume {#rollout-configmap-immutable-volume}
 
 {{< note >}}
-Immutable ConfigMaps are especially used for configuration that is constant and is **not** expected to change over time. Marking a ConfigMap as immutable allows a performance improvement where the kubelet does not watch for changes.
+Immutable ConfigMaps are especially used for configuration that is constant and is **not** expected
+to change over time. Marking a ConfigMap as immutable allows a performance improvement where the kubelet does not watch for changes.
 
 If you do need to make a change, you should plan to either:
+
 - change the name of the ConfigMap, and switch to running Pods that reference the new name
 - replace all the nodes in your cluster that have previously run a Pod that used the old value
 - restart the kubelet on any node where the kubelet previously loaded the old ConfigMap
@@ -490,26 +563,31 @@ An example manifest for an [Immutable ConfigMap](/docs/concepts/configuration/co
 {{% code_sample file="configmap/immutable-configmap.yaml" %}}
 
 Create the Immutable ConfigMap:
+
 ```shell
 kubectl apply -f https://k8s.io/examples/configmap/immutable-configmap.yaml
 ```
 
 Below is an example of a Deployment manifest with the Immutable ConfigMap `company-name-20150801` mounted as a
 {{< glossary_tooltip text="volume" term_id="volume" >}} into the Pod's only container.
+
 {{% code_sample file="deployments/deployment-with-immutable-configmap-as-volume.yaml" %}}
 
 Create the Deployment:
+
 ```shell
 kubectl apply -f https://k8s.io/examples/deployments/deployment-with-immutable-configmap-as-volume.yaml
 ```
 
 Check the pods for this Deployment to ensure they are ready (matching by
 {{< glossary_tooltip text="selector" term_id="selector" >}}):
+
 ```shell
 kubectl get pods --selector=app.kubernetes.io/name=immutable-configmap-volume
 ```
 
 You should see an output similar to:
+
 ```
 NAME                                          READY   STATUS    RESTARTS   AGE
 immutable-configmap-volume-78b6fbff95-5gsfh   1/1     Running   0          62s
@@ -517,13 +595,16 @@ immutable-configmap-volume-78b6fbff95-7vcj4   1/1     Running   0          62s
 immutable-configmap-volume-78b6fbff95-vdslm   1/1     Running   0          62s
 ```
 
-The Pod's container refers to the data defined in the ConfigMap and uses it to print a report to stdout. You can check this report by viewing the logs for one of the Pods in that Deployment:
+The Pod's container refers to the data defined in the ConfigMap and uses it to print a report to stdout.
+You can check this report by viewing the logs for one of the Pods in that Deployment:
+
 ```shell
 # Pick one Pod that belongs to the Deployment, and view its logs
 kubectl logs deployments/immutable-configmap-volume
 ```
 
 You should see an output similar to:
+
 ```
 Found 3 pods, using pod/immutable-configmap-volume-78b6fbff95-5gsfh
 Wed Mar 20 03:52:34 UTC 2024 The name of the company is ACME, Inc.
@@ -540,6 +621,7 @@ to define a slightly different pod template, referencing the new ConfigMap.
 {{< /note >}}
 
 Create a new immutable ConfigMap by using the manifest shown below:
+
 {{% code_sample file="configmap/new-immutable-configmap.yaml" %}}
 
 ```shell
@@ -547,6 +629,7 @@ kubectl apply -f https://k8s.io/examples/configmap/new-immutable-configmap.yaml
 ```
 
 You should see an output similar to:
+
 ```
 configmap/company-name-20240312 created
 ```
@@ -558,6 +641,7 @@ kubectl get configmap
 ```
 
 You should see an output displaying both the old and new ConfigMaps:
+
 ```
 NAME                    DATA   AGE
 company-name-20150801   1      22m
@@ -567,6 +651,7 @@ company-name-20240312   1      24s
 Modify the Deployment to reference the new ConfigMap.
 
 Edit the Deployment:
+
 ```shell
 kubectl edit deployment immutable-configmap-volume
 ```
@@ -580,7 +665,9 @@ volumes:
     name: company-name-20240312 # Update this field
   name: config-volume
 ```
+
 You should see the following output:
+
 ```
 deployment.apps/immutable-configmap-volume edited
 ```
@@ -588,6 +675,7 @@ deployment.apps/immutable-configmap-volume edited
 This will trigger a rollout. Wait for all the previous Pods to terminate and the new Pods to be in a ready state.
 
 Monitor the status of the Pods:
+
 ```shell
 kubectl get pods --selector=app.kubernetes.io/name=immutable-configmap-volume
 ```
@@ -600,10 +688,10 @@ immutable-configmap-volume-5fdb88fcc8-n5jx4   1/1     Running       0          1
 immutable-configmap-volume-78b6fbff95-5gsfh   1/1     Terminating   0          32m
 immutable-configmap-volume-78b6fbff95-7vcj4   1/1     Terminating   0          32m
 immutable-configmap-volume-78b6fbff95-vdslm   1/1     Terminating   0          32m
-
 ```
 
 You should eventually see an output similar to:
+
 ```
 NAME                                          READY   STATUS    RESTARTS   AGE
 immutable-configmap-volume-5fdb88fcc8-29v8n   1/1     Running   0          43s
@@ -612,12 +700,14 @@ immutable-configmap-volume-5fdb88fcc8-n5jx4   1/1     Running   0          45s
 ```
 
 View the logs for a Pod in this Deployment:
+
 ```shell
 # Pick one Pod that belongs to the Deployment, and view its logs
 kubectl logs deployment/immutable-configmap-volume
 ```
 
 You should see an output similar to the below:
+
 ```
 Found 3 pods, using pod/immutable-configmap-volume-5fdb88fcc8-n5jx4
 Wed Mar 20 04:24:17 UTC 2024 The name of the company is Fiktivesunternehmen GmbH
@@ -637,14 +727,19 @@ Changes to a ConfigMap mounted as a Volume on a Pod are available seamlessly aft
 
 Changes to a ConfigMap that configures environment variables for a Pod are available after the subsequent rollout for the Pod.
 
-Once a ConfigMap is marked as immutable, it is not possible to revert this change (you cannot make an immutable ConfigMap mutable), and you also cannot make any change to the contents of the `data` or the `binaryData` field. You can delete and recreate the ConfigMap, or you can make a new different ConfigMap. When you delete a ConfigMap, running containers
+Once a ConfigMap is marked as immutable, it is not possible to revert this change
-and their Pods maintain a mount point to any volume that referenced that existing ConfigMap.
+(you cannot make an immutable ConfigMap mutable), and you also cannot make any change
-
+to the contents of the `data` or the `binaryData` field. You can delete and recreate
+the ConfigMap, or you can make a new different ConfigMap. When you delete a ConfigMap,
+running containers and their Pods maintain a mount point to any volume that referenced
+that existing ConfigMap.
 
 ## {{% heading "cleanup" %}}
+
 Terminate the `kubectl port-forward` commands in case they are running.
 
 Delete the resources created during the tutorial:
+
 ```shell
 kubectl delete deployment configmap-volume configmap-env-var configmap-two-containers configmap-sidecar-container immutable-configmap-volume
 kubectl delete service configmap-service configmap-sidecar-service