prompt stringlengths 13 282 | response stringlengths 128 3.11k |
|---|---|
Add a taint with key 'dedicated' on nodes having the label 'myLabel' and value 'dev-node-4' with the effect 'PreferNoSchedule' | Command:
```bash
kubectl taint node -l myLabel dedicated=dev-node-4:PreferNoSchedule
```
What it does:
Update the taints on one or more nodes.
Syntax:
`kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output... |
Start a postgres pod with custom spec values from JSON | Command:
```bash
kubectl run nginx --image=postgres --overrides='{ "apiVersion": "v3.0.0", "spec": { ... } }'
```
What it does:
Create and run a particular image in a pod.
Syntax:
`kubectl run NAME --image=image [--env="key=value"] [--port=port] [--dry-run=server|client] [--overrides=inline-json] [--command] -- [COMM... |
List the replication controller named "web", the service named "monitoring-rc", and the pod named "proxy-server-pod" | Command:
```bash
kubectl get rc/web service/monitoring-rc pods/proxy-server-pod
```
What it does:
Display one or many resources.
Prints a table of the most important information about the specified resources. You can filter the list using a label selector and the --selector flag. If the desired resource type is namesp... |
Set the custom TLS server name for the "sun-cluster" cluster entry | Command:
```bash
kubectl config set-cluster sun-cluster --tls-server-name=on-prem-cluster
```
What it does:
Set a cluster entry in kubeconfig.
Specifying a name that already exists will merge new fields on top of existing values for those fields.
Syntax:
`kubectl config set-cluster NAME [--server=server] [--certifica... |
Auto scale the deployment "monitoring" with a minimum of 7 pods and a maximum of 14 pods. | Command:
```bash
kubectl autoscale deployment monitoring --min=7 --max=14
```
What it does:
Creates an autoscaler that automatically chooses and sets the number of pods that run in a Kubernetes cluster.
Looks up a deployment, replica set, stateful set, or replication controller by name and creates an autoscaler that u... |
Expose a replica set as a service, serving on port 8443 and connecting to the containers on port 8000 | Command:
```bash
kubectl expose rs hazelcast --port=8443 --target-port=8000
```
What it does:
Expose a resource as a new Kubernetes service.
Looks up a deployment, service, replica set, replication controller or pod by name and uses the selector for that resource as the selector for a new service on the specified port... |
Execute the 'node' command in the first container of the first pod of the 'loadbalancer-service' service and get the output. | Command:
```bash
kubectl exec svc/loadbalancer-service -- node
```
What it does:
Execute a command in a container.
Syntax:
`kubectl exec (POD | TYPE/NAME) [-c CONTAINER] [flags] -- COMMAND [args...]`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage": "Container name. If omitted, use the kub... |
Create a new ExternalName service called 'external-email-service' with the external name 'sample-domain.net' | Command:
```bash
kubectl create service externalname external-email-service --external-name sample-domain.net
```
What it does:
Create an ExternalName service with the specified name.
ExternalName service references to an external DNS address instead of only pods, which will allow application authors to reference serv... |
Forward local port 8088 to remote port 8888 of the pod selected by the deployment "search-engine-deployment". | Command:
```bash
kubectl port-forward deployment/search-engine-deployment 8088 8888
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod wil... |
List the replication controller named 'web', the service named 'frontend-rc', and the pod named 'monitoring-pod' | Command:
```bash
kubectl get rc/web service/frontend-rc pods/monitoring-pod
```
What it does:
Display one or many resources.
Prints a table of the most important information about the specified resources. You can filter the list using a label selector and the --selector flag. If the desired resource type is namespaced... |
Add a taint with key 'hardware' on nodes having a label 'project=project-alpha' and value 'backup-node-14' with the effect 'PreferNoSchedule' | Command:
```bash
kubectl taint node -l project=project-alpha hardware=backup-node-14:PreferNoSchedule
```
What it does:
Update the taints on one or more nodes.
Syntax:
`kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N`
Helpful flags:
"flag": "--output", "short": "-o", "default": "",... |
Create a new config map named global-config with keys and values from specified files | Command:
```bash
kubectl create configmap global-config --from-file=properties=/path/to/profiles/file1.txt --from-file=key1=/path/to/properties/file2.txt
```
What it does:
Create a config map based on a file, directory, or specified literal value.
A single config map may package one or more key/value pairs.
When creat... |
Import the 'secret_key' from the 'global-config' config map into the 'order-processing-deployment' deployment. | Command:
```bash
kubectl set env --keys=secret_key --from=configmap/global-config deployment/order-processing-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable defi... |
Import the LOG_LEVEL key from the monitoring-config ConfigMap and set it as an environment variable for the load-balancer-deployment Deployment. | Command:
```bash
kubectl set env --keys=LOG_LEVEL --from=configmap/monitoring-config deployment/load-balancer-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable defi... |
Create a pod disruption budget named payment-gateway-pdb that will select all pods with the version=v2 label and require a minimum of four of them being available at any point in time. | Command:
```bash
kubectl create poddisruptionbudget payment-gateway-pdb --selector=version=v2 --min-available=4
```
What it does:
Create a pod disruption budget with the specified name, selector, and desired minimum available pods.
Syntax:
`kubectl create poddisruptionbudget NAME --selector=SELECTOR --min-available=N... |
Retrieve logs from all containers in the pods labeled with 'team=devops' | Command:
```bash
kubectl logs -l team=devops --all-containers=true
```
What it does:
Print the logs for a container in a pod or specified resource. If the pod has only one container, the container name is optional.
Syntax:
`kubectl logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]`
Helpful flags:
"flag": "--container"... |
Create a cluster role named "view" with the verb "list" and the non-resource URL "/port-forward" specified. | Command:
```bash
kubectl create clusterrole "view" --verb=list --non-resource-url=/port-forward
```
What it does:
Create a cluster role.
Syntax:
`kubectl create clusterrole NAME --verb=verb --resource=resource.group [--resource-name=resourcename] [--dry-run=server|client|none]`
Helpful flags:
"flag": "--output", "sh... |
Forward local port 8088 to port 5432 in the pod web-app-pod | Command:
```bash
kubectl port-forward pod/web-app-pod 8088 5432
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod will be selected automa... |
Create a config map named app-config-prod with specified keys and their corresponding files. | Command:
```bash
kubectl create configmap app-config-prod --from-file=properties=/path/to/configs/file1.txt --from-file=key1=/path/to/profiles/file2.txt
```
What it does:
Create a config map based on a file, directory, or specified literal value.
A single config map may package one or more key/value pairs.
When creati... |
Import the `secret_key` key from the `kube-system-config` config map and set it as an environment variable for the `web-app-deployment` deployment. | Command:
```bash
kubectl set env --keys=secret_key --from=configmap/kube-system-config deployment/web-app-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definiti... |
Get the documentation for a specific field of a resource | Command:
```bash
kubectl explain resource=services.spec.selector
```
What it does:
List the fields for supported resources.
This command describes the fields associated with each supported API resource. Fields are identified via a simple JSONPath identifier:
<type>.<fieldName>[.<fieldName>]
Add the --recursive flag to... |
Create a service for the replicated php using replica set, which serves on port 8089 and connects to the containers on port 637900 | Command:
```bash
kubectl expose rs php --port=8089 --target-port=637900
```
What it does:
Expose a resource as a new Kubernetes service.
Looks up a deployment, service, replica set, replication controller or pod by name and uses the selector for that resource as the selector for a new service on the specified port. A ... |
Update the annotation 'scaling-policy' of the pod 'database' to 'auto-horizontal-scaling', replacing any existing value | Command:
```bash
kubectl annotate --overwrite pods database scaling-policy='auto-horizontal-scaling'
```
What it does:
Update the annotations on one or more resources.
All Kubernetes objects support the ability to store additional data with the object as annotations. Annotations are key/value pairs that can be larger ... |
Import specific keys from a config map into a deployment's environment variables | Command:
```bash
kubectl set env --keys=REDIS_HOST --from=configmap/monitoring-config deployment/payment-processor-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable... |
Update the image of all containers in the daemonset "test" to "ruby:3.0.2" | Command:
```bash
kubectl set image daemonset test *=ruby:3.0.2
```
What it does:
Update existing container image(s) of resources.
Possible resources include (case insensitive):
pod (po), replicationcontroller (rc), deployment (deploy), daemonset (ds), statefulset (sts), cronjob (cj), replicaset (rs)
Syntax:
`kubectl ... |
Attach to a specific container within a pod and interact with it in raw terminal mode | Command:
```bash
kubectl attach media-stream-pod -c time-machine -i -t
```
What it does:
Attach to a process that is already running inside an existing container.
Syntax:
`kubectl attach (POD | TYPE/NAME) -c CONTAINER`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage": "Container name. If o... |
Import specific keys from a config map | Command:
```bash
kubectl set env --keys=SECRET_KEY --from=configmap/monitoring-config deployment/api-server-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable defini... |
import the 'log_level' key from the 'global-config' config map and set it as an environment variable in the 'mydeployment' deployment | Command:
```bash
kubectl set env --keys=log_level --from=configmap/global-config deployment/mydeployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definitions in one o... |
Assign the label 'role' with the value 'backend' to the pod 'security' | Command:
```bash
kubectl label pods security role=backend
```
What it does:
Update the labels on a resource.
Syntax:
`kubectl label [--overwrite] (-f FILENAME | TYPE NAME) KEY_1=VAL_1 ... KEY_N=VAL_N [--resource-version=version]`
Helpful flags:
"flag": "--all-namespaces", "short": "-A", "default": "false", "usage": ... |
Create a job named 'indexing' with the image 'ethereum/client-go' and execute the command 'geth version' inside the job. | Command:
```bash
kubectl create job indexing --image=ethereum/client-go -- geth version
```
What it does:
Create a job with the specified name.
Syntax:
`kubectl create job NAME --image=image [--from=cronjob/name] -- [COMMAND] [args...]`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Outpu... |
Return the snapshot logs from the analytics-pod pod | Command:
```bash
kubectl logs analytics-pod
```
What it does:
Print the logs for a container in a pod or specified resource. If the pod has only one container, the container name is optional.
Syntax:
`kubectl logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]`
Helpful flags:
"flag": "--container", "short": "-c", "defau... |
Import specific keys from a config map to a deployment | Command:
```bash
kubectl set env --keys=config_file_path --from=configmap/api-config deployment/api-server-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definit... |
Copy the file named 'foo' located at '/tmp' on the local machine to the '/tmp' directory inside the 'bar' pod in the 'prometheus' namespace. | Command:
```bash
kubectl cp :/tmp/foo prometheus/metrics-exporter-pod-10::/tmp/bar
```
What it does:
Copy files and directories to and from containers.
Syntax:
`kubectl cp <file-spec-src> <file-spec-dest>`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage": "Container name. If omitted, use t... |
Forward port 8888 on localhost and IP 10.19.21.23 to port 3000 in the analytics-pod | Command:
```bash
kubectl port-forward --address localhost,10.19.21.23 pod/analytics-pod 8888:3000
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the crite... |
Create an ingress resource named 'api-ingress' with a rule that directs requests for 'website.com/bar' to the service 'svc1' on port 8088 | Command:
```bash
kubectl create ingress api-ingress --rule="website.com/bar=svc1:8088,tls=my-cert"
```
What it does:
Create an ingress with the specified name.
Syntax:
`kubectl create ingress NAME --rule=host/path=service:port[,tls[=secret]]`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": ... |
Create a new config map named kube-system-config with specified keys instead of file basenames on disk | Command:
```bash
kubectl create configmap kube-system-config --from-file=properties=/path/to/data/file1.txt --from-file=key1=/path/to/configs/file2.txt
```
What it does:
Create a config map based on a file, directory, or specified literal value.
A single config map may package one or more key/value pairs.
When creatin... |
Check if you can list the 'cleanup-job' job in the 'development' namespace | Command:
```bash
kubectl auth can-i list jobs.batch/cleanup-job -n development
```
What it does:
Check whether an action is allowed.
VERB is a logical Kubernetes API verb like 'get', 'list', 'watch', 'delete', etc. TYPE is a Kubernetes resource. Shortcuts and groups will be resolved. NONRESOURCEURL is a partial URL th... |
Create a deployment named wordpress using the golang image and expose port 8082 | Command:
```bash
kubectl create deployment wordpress --image=golang --port=8082
```
What it does:
Create a deployment with the specified name.
Syntax:
`kubectl create deployment NAME --image=image -- [COMMAND] [args...]`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output format. One of... |
Forward local port 5000 to port 5432 in the 'security-service-pod' pod | Command:
```bash
kubectl port-forward pod/security-service-pod 5000:5432
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod will be select... |
Update the deployment 'mydeployment' by adding a new environment variable QUEUE_NAME with the value 'task-queue'. | Command:
```bash
kubectl set env deployment/mydeployment QUEUE_NAME=task-queue
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definitions in one or more pod templates (with... |
Create a new secret named cert-manager-secret with keys for each file in folder bar | Command:
```bash
kubectl create secret generic cert-manager-secret --from-file=path/to/configs
```
What it does:
Create a secret based on a file, directory, or specified literal value.
A single secret may package one or more key/value pairs.
When creating a secret based on a file, the key will default to the basename ... |
Import specific keys from a config map to a deployment | Command:
```bash
kubectl set env --keys=SECRET_KEY --from=configmap/global-config deployment/web-app-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definitions i... |
import the 'LOG_LEVEL' key from the 'app-config-prod' config map to the 'proxy-service-deployment' deployment | Command:
```bash
kubectl set env --keys=LOG_LEVEL --from=configmap/app-config-prod deployment/proxy-service-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable defini... |
Execute the 'python' command in the 'astro-container' inside the 'log-aggregator-pod' pod and retrieve the output. | Command:
```bash
kubectl exec log-aggregator-pod -c astro-container -- python
```
What it does:
Execute a command in a container.
Syntax:
`kubectl exec (POD | TYPE/NAME) [-c CONTAINER] [flags] -- COMMAND [args...]`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage": "Container name. If omitt... |
Set the service account of deployment "email-server-deployment" to "gitlab-runner" | Command:
```bash
kubectl set serviceaccount deployment email-server-deployment gitlab-runner
```
What it does:
Update the service account of pod template resources.
Possible resources (case insensitive) can be:
replicationcontroller (rc), deployment (deploy), daemonset (ds), job, replicaset (rs), statefulset
Syntax:
... |
Import keys from a config map to a deployment's environment variables | Command:
```bash
kubectl set env --keys=REDIS_HOST --from=configmap/log-config deployment/authentication-service-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable d... |
Create an ingress called 'service-ingress' with a rule that directs requests to testing.com/input to svc # svc1:9000 | Command:
```bash
kubectl create ingress service-ingress --rule="testing.com/input=svc1:9000,tls=my-cert"
```
What it does:
Create an ingress with the specified name.
Syntax:
`kubectl create ingress NAME --rule=host/path=service:port[,tls[=secret]]`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "us... |
Create a new config map named app-secrets with specified keys instead of file basenames on disk | Command:
```bash
kubectl create configmap app-secrets --from-file=properties=/path/to/properties/file1.txt --from-file=key1=/path/to/configs/file2.txt
```
What it does:
Create a config map based on a file, directory, or specified literal value.
A single config map may package one or more key/value pairs.
When creating... |
Create a deployment named db that runs the node image | Command:
```bash
kubectl create deployment db --image=node
```
What it does:
Create a deployment with the specified name.
Syntax:
`kubectl create deployment NAME --image=image -- [COMMAND] [args...]`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output format. One of: json|yaml|name|go-t... |
Update the release notes annotation for a pod identified by type and name in "conf.json" file | Command:
```bash
kubectl annotate -f conf.json release-notes='https://example.com/release-notes/v2.5.1'
```
What it does:
Update the annotations on one or more resources.
All Kubernetes objects support the ability to store additional data with the object as annotations. Annotations are key/value pairs that can be larg... |
Set environment variables using specific keys from a config map for a deployment | Command:
```bash
kubectl set env --keys=max_connections --from=configmap/env-vars deployment/scheduler-app-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definit... |
Auto scale the 'log-aggregator' deployment, allowing the number of pods to vary between 3 and 15. | Command:
```bash
kubectl autoscale deployment log-aggregator --min=3 --max=15
```
What it does:
Creates an autoscaler that automatically chooses and sets the number of pods that run in a Kubernetes cluster.
Looks up a deployment, replica set, stateful set, or replication controller by name and creates an autoscaler th... |
Forward local traffic from port 8088 to port 5000 on a pod selected by the deployment "authentication-service-deployment". | Command:
```bash
kubectl port-forward deployment/authentication-service-deployment 8088 5000
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, ... |
Add a taint with the key 'disktype' and the value 'node-1:PreferNoSchedule' to nodes that have the label 'region=eu-west-2' | Command:
```bash
kubectl taint node -l region=eu-west-2 disktype=node-1:PreferNoSchedule
```
What it does:
Update the taints on one or more nodes.
Syntax:
`kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Ou... |
Import specific keys from a config map into a deployment's environment variables | Command:
```bash
kubectl set env --keys=debug_mode --from=configmap/ui-config deployment/order-processing-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definiti... |
Add a taint to a specific node | Command:
```bash
kubectl taint nodes prod-node-5 environment:NoSchedule
```
What it does:
Update the taints on one or more nodes.
Syntax:
`kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output format. One o... |
Display the most recent 43 lines of logs for pod gateway-pod | Command:
```bash
kubectl logs --tail=43 gateway-pod
```
What it does:
Print the logs for a container in a pod or specified resource. If the pod has only one container, the container name is optional.
Syntax:
`kubectl logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]`
Helpful flags:
"flag": "--container", "short": "-c"... |
Create a deployment named my-dep with the confluentinc/cp-kafka image | Command:
```bash
kubectl create deployment my-dep --image=confluentinc/cp-kafka
```
What it does:
Create a deployment with the specified name.
Syntax:
`kubectl create deployment NAME --image=image -- [COMMAND] [args...]`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output format. One of... |
Add a taint with key 'dedicated' on nodes having the label app-type=microservice, and the taint value as 'testing-node-11:PreferNoSchedule' | Command:
```bash
kubectl taint node -l app-type=microservice dedicated=testing-node-11:PreferNoSchedule
```
What it does:
Update the taints on one or more nodes.
Syntax:
`kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N`
Helpful flags:
"flag": "--output", "short": "-o", "default": "... |
Retrieve the logs of the previously terminated "cyber-sleuth" container from the "backend-pod" pod. | Command:
```bash
kubectl logs -p -c cyber-sleuth backend-pod
```
What it does:
Print the logs for a container in a pod or specified resource. If the pod has only one container, the container name is optional.
Syntax:
`kubectl logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]`
Helpful flags:
"flag": "--container", "sho... |
Retrieve the snapshot logs from the container "vpn-service-pod-1" of the deployment "api-server-deployment". | Command:
```bash
kubectl logs deployment/api-server-deployment -c vpn-service-pod-1
```
What it does:
Print the logs for a container in a pod or specified resource. If the pod has only one container, the container name is optional.
Syntax:
`kubectl logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]`
Helpful flags:
"fla... |
Listen on port 9090 on all addresses, and forward the traffic to the 3000 port of the 'cdn-service-pod' pod. | Command:
```bash
kubectl port-forward --address 0.0.0.0 pod/cdn-service-pod 9090:3000
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod w... |
Retrieve the snapshot logs from the container named 'web-app-pod-1' in the 'cache-cluster-deployment' deployment. | Command:
```bash
kubectl logs deployment/cache-cluster-deployment -c web-app-pod-1
```
What it does:
Print the logs for a container in a pod or specified resource. If the pod has only one container, the container name is optional.
Syntax:
`kubectl logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]`
Helpful flags:
"flag... |
Forward local port 8080 to port 9090 in the backend-pod and locally listen on port 8080. | Command:
```bash
kubectl port-forward pod/backend-pod 8080 9090
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod will be selected automa... |
Create a new ExternalName service named external-metrics-service and set its external name as placeholder-app.app | Command:
```bash
kubectl create service externalname external-metrics-service --external-name placeholder-app.app
```
What it does:
Create an ExternalName service with the specified name.
ExternalName service references to an external DNS address instead of only pods, which will allow application authors to reference ... |
Create a role named "reader" with the following permissions: | Command:
```bash
kubectl create role reader --verb=watch --resource=pods --resource-name=error-logger --resource-name=cdn-proxy
```
What it does:
Create a role with single rule.
Syntax:
`kubectl create role NAME --verb=verb --resource=resource.group/subresource [--resource-name=resourcename] [--dry-run=server|client|... |
Get output from running a command in a specific container within a pod | Command:
```bash
kubectl exec mypod -c lunar-launcher -- kafka-server-start /etc/kafka/server.properties
```
What it does:
Execute a command in a container.
Syntax:
`kubectl exec (POD | TYPE/NAME) [-c CONTAINER] [flags] -- COMMAND [args...]`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage"... |
Use 'notepad' as the editor to edit the 'backend-service' service | Command:
```bash
KUBE_EDITOR="notepad" kubectl edit svc/backend-service
```
What it does:
Edit a resource from the default editor.
The edit command allows you to directly edit any API resource you can retrieve via the command-line tools. It will open the editor defined by your KUBE_EDITOR, or EDITOR environment variab... |
Listen on port 6379 on all addresses and forward the traffic to the 'proxy-server-pod' pods 8088 port | Command:
```bash
kubectl port-forward --address 0.0.0.0 pod/proxy-server-pod 6379:8088
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod ... |
Display the resource usage metrics for the 'edge-node-10' node. | Command:
```bash
kubectl top node edge-node-10
```
What it does:
Display resource (CPU/memory) usage of nodes.
The top-node command allows you to see the resource consumption of nodes.
Syntax:
`kubectl top node [NAME | -l label]`
Helpful flags:
"flag": "--selector", "short": "-l", "default": "", "usage": "Selector (... |
Import specific keys from a config map into a deployment's environment variables | Command:
```bash
kubectl set env --keys=api_key --from=configmap/ui-config deployment/backend-microservice-deployment
```
What it does:
Update environment variables on a pod template.
List environment variable definitions in one or more pods, pod templates. Add, update, or remove container environment variable definit... |
Forward all traffic from port 8888 on all addresses to port 3000 in the 'web-app-pod' pod. | Command:
```bash
kubectl port-forward --address 0.0.0.0 pod/web-app-pod 8888:3000
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod will ... |
Edit the 'notification-service' service configuration | Command:
```bash
kubectl edit svc/notification-service
```
What it does:
Edit a resource from the default editor.
The edit command allows you to directly edit any API resource you can retrieve via the command-line tools. It will open the editor defined by your KUBE_EDITOR, or EDITOR environment variables, or fall back... |
Taint node 'edge-node-10' with a key 'special', value 'backup', and effect 'NoSchedule', replacing any existing taint with the same key and effect. | Command:
```bash
kubectl taint nodes edge-node-10 special=backup:NoSchedule
```
What it does:
Update the taints on one or more nodes.
Syntax:
`kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output format. O... |
Set the service account for the 'api-server-deployment' deployment to 'default' | Command:
```bash
kubectl set serviceaccount deployment api-server-deployment default
```
What it does:
Update the service account of pod template resources.
Possible resources (case insensitive) can be:
replicationcontroller (rc), deployment (deploy), daemonset (ds), job, replicaset (rs), statefulset
Syntax:
`kubectl... |
Copy the local file /tmp/foo_dir to the remote pod kube-node-lease/database-pod-2 in the /tmp/bar_dir directory | Command:
```bash
kubectl cp /tmp/foo_dir kube-node-lease/database-pod-2:/tmp/bar_dir
```
What it does:
Copy files and directories to and from containers.
Syntax:
`kubectl cp <file-spec-src> <file-spec-dest>`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage": "Container name. If omitted, use... |
Scale the deployment named "web" to have 3 replicas, keeping its current size as 7. | Command:
```bash
kubectl scale --current-replicas=7 --replicas=3 deployment/web
```
What it does:
Set a new size for a deployment, replica set, replication controller, or stateful set.
Scale also allows users to specify one or more preconditions for the scale action.
If --current-replicas or --resource-version is spec... |
Auto scale the replication controller "log-aggregator" with a target CPU utilization of 60% and a minimum of 1 pod and a maximum of 8 pods. | Command:
```bash
kubectl autoscale rc log-aggregator --max=8 --cpu-percent=60
```
What it does:
Creates an autoscaler that automatically chooses and sets the number of pods that run in a Kubernetes cluster.
Looks up a deployment, replica set, stateful set, or replication controller by name and creates an autoscaler th... |
Create a service named "frontend" to expose the analytics-pod. The service should serve on port 444. | Command:
```bash
kubectl expose pod analytics-pod --port=80 --name=frontend
```
What it does:
Expose a resource as a new Kubernetes service.
Looks up a deployment, service, replica set, replication controller or pod by name and uses the selector for that resource as the selector for a new service on the specified port... |
Add a taint with the key 'environment' on nodes that have the label environment=production, specifically on the node named 'db-node-7', and set the taint effect as 'PreferNoSchedule'. | Command:
```bash
kubectl taint node -l environment=production environment=db-node-7:PreferNoSchedule
```
What it does:
Update the taints on one or more nodes.
Syntax:
`kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", ... |
Create a copy of the e-commerce pod with a debug container and updated container images | Command:
```bash
kubectl debug e-commerce-pod -it --copy-to=debug-image-app --image=debian --set-image=worker=my-custom-worker:1.2.3,logger=logging-app:debug
```
What it does:
Debug cluster resources using interactive debugging containers.
'debug' provides automation for common debugging tasks for cluster objects iden... |
Create a copy of the payment-gateway-pod with all container images changed to "confluentinc/cp-kafka" | Command:
```bash
kubectl debug payment-gateway-pod --copy-to=debug-image-1 --set-image=*=confluentinc/cp-kafka
```
What it does:
Debug cluster resources using interactive debugging containers.
'debug' provides automation for common debugging tasks for cluster objects identified by resource and name. Pods will be used ... |
Update the "client-key" field for the "cluster-admin" entry in the kubeconfig file, without modifying any other values | Command:
```bash
kubectl config set-credentials cluster-admin --client-key=~/.kube/admin.key
```
What it does:
Set a user entry in kubeconfig.
Specifying a name that already exists will merge new fields on top of existing values.
Client-certificate flags:
--client-certificate=certfile --client-key=keyfile
Bearer tok... |
Execute the 'node' command within the pod named 'email-service-pod' and retrieve the output. | Command:
```bash
kubectl exec email-service-pod -- node
```
What it does:
Execute a command in a container.
Syntax:
`kubectl exec (POD | TYPE/NAME) [-c CONTAINER] [flags] -- COMMAND [args...]`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage": "Container name. If omitted, use the kubectl.ku... |
Create a service named "frontend" that exposes the "security-service-pod" pod on port 9092. | Command:
```bash
kubectl expose pod security-service-pod --port=9092 --name=frontend
```
What it does:
Expose a resource as a new Kubernetes service.
Looks up a deployment, service, replica set, replication controller or pod by name and uses the selector for that resource as the selector for a new service on the speci... |
Forward local port 8000 to port 8888 in the frontend-pod pod | Command:
```bash
kubectl port-forward pod/frontend-pod 8000:8888
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod will be selected autom... |
Create a copy of the 'security-service-pod' pod as 'debug-image-1' while changing all container images to 'mcr.microsoft.com/dotnet/core/runtime' | Command:
```bash
kubectl debug security-service-pod --copy-to=debug-image-1 --set-image=*=mcr.microsoft.com/dotnet/core/runtime
```
What it does:
Debug cluster resources using interactive debugging containers.
'debug' provides automation for common debugging tasks for cluster objects identified by resource and name. P... |
Set the service account of the 'monitoring-stack-deployment' deployment to 'metrics-server' | Command:
```bash
kubectl set serviceaccount deployment monitoring-stack-deployment metrics-server
```
What it does:
Update the service account of pod template resources.
Possible resources (case insensitive) can be:
replicationcontroller (rc), deployment (deploy), daemonset (ds), job, replicaset (rs), statefulset
Syn... |
Listen on your local machine's port 8000 and forward the traffic to port 6379 on the pod named 'cdn-service-pod' | Command:
```bash
kubectl port-forward pod/cdn-service-pod 8000:6379
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod will be selected au... |
Create a job named 'indexing' using the 'centos' image and run the command 'yum install -y wget' | Command:
```bash
kubectl create job indexing --image=centos -- yum install -y wget
```
What it does:
Create a job with the specified name.
Syntax:
`kubectl create job NAME --image=image [--from=cronjob/name] -- [COMMAND] [args...]`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output for... |
Switch to the cluster-beta context | Command:
```bash
kubectl config use-context cluster-beta
```
What it does:
Set the current-context in a kubeconfig file.
Syntax:
`kubectl config use-context CONTEXT_NAME` |
Listen on port 8000 on localhost and IP 10.19.21.23, and forward the traffic to port 8888 in the backend-pod pod. | Command:
```bash
kubectl port-forward --address localhost,10.19.21.23 pod/backend-pod 8000:8888
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteri... |
Listen on port 6379 on localhost and IP address 10.19.21.23, forwarding it to port 3000 in the 'web-app-pod' pod. | Command:
```bash
kubectl port-forward --address localhost,10.19.21.23 pod/web-app-pod 6379:3000
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteri... |
Switch to the star-cluster context | Command:
```bash
kubectl config use-context star-cluster
```
What it does:
Set the current-context in a kubeconfig file.
Syntax:
`kubectl config use-context CONTEXT_NAME` |
Create a cluster role named "view" with SubResource specified | Command:
```bash
kubectl create clusterrole view --verb=list,create,update --resource=nodes,nodes/proxy
```
What it does:
Create a cluster role.
Syntax:
`kubectl create clusterrole NAME --verb=verb --resource=resource.group [--resource-name=resourcename] [--dry-run=server|client|none]`
Helpful flags:
"flag": "--outp... |
Forward traffic from local ports 8081 and 6000 to ports 5432 and 6000 respectively in the e-commerce-pod pod | Command:
```bash
kubectl port-forward pod/e-commerce-pod 8081 5432
```
What it does:
Forward one or more local ports to a pod.
Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.
If there are multiple pods matching the criteria, a pod will be selected aut... |
Copy the file "/tmp/foo" from the remote pod "kube-system/load-balancer-pod-9" to the local directory "/etc/kubernetes". | Command:
```bash
kubectl cp kube-system/load-balancer-pod-9::/tmp/foo /etc/kubernetes
```
What it does:
Copy files and directories to and from containers.
Syntax:
`kubectl cp <file-spec-src> <file-spec-dest>`
Helpful flags:
"flag": "--container", "short": "-c", "default": "", "usage": "Container name. If omitted, us... |
List the deployments in the "v1.0.0" version of the "alpha-apps" API group in YAML output format | Command:
```bash
kubectl get deployments.v1.0.0.alpha-apps -o yaml
```
What it does:
Display one or many resources.
Prints a table of the most important information about the specified resources. You can filter the list using a label selector and the --selector flag. If the desired resource type is namespaced you will... |
Create a cluster role named "custom_role" with the ability to delete services and access backup-service and file-storage | Command:
```bash
kubectl create clusterrole custom_role --verb=delete --resource=services --resource-name=backup-service --resource-name=file-storage
```
What it does:
Create a cluster role.
Syntax:
`kubectl create clusterrole NAME --verb=verb --resource=resource.group [--resource-name=resourcename] [--dry-run=server... |
Set the cluster field in the 'app-1-context' context to 'sun-cluster' | Command:
```bash
kubectl config set contexts.app-1-context.cluster sun-cluster
```
What it does:
Set an individual value in a kubeconfig file.
PROPERTY_NAME is a dot delimited name where each token represents either an attribute name or a map key. Map keys may not contain dots.
PROPERTY_VALUE is the new value you wan... |
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