prompt stringlengths 13 282 | response stringlengths 128 3.11k |
|---|---|
Add a 'PreferNoSchedule' taint with the key 'workload' on all nodes that have the label 'owner' set to 'john-doe'. | Command:
```bash
kubectl taint node -l owner=john-doe workload=k8s-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": "... |
Embed the certificate authority data for the web-cluster cluster entry and set the certificate authority path to "~/.kube/cluster-alpha/kubernetes.ca.crt" | Command:
```bash
kubectl config set-cluster web-cluster --embed-certs --certificate-authority=~/.kube/cluster-alpha/kubernetes.ca.crt
```
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... |
Copy a file named "foo" from the "/tmp" directory of a remote pod to the "/tmp" directory on your local machine. | Command:
```bash
kubectl exec -n kube-dns backend-pod-13 -- tar cf - /tmp/foo | tar xf - -C :/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... |
Import environment variables from a ConfigMap with a specific prefix for a deployment. | Command:
```bash
kubectl set env --from=configmap/api-config --prefix=MYSQL_ deployment/search-engine-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 ... |
List the replication controller named "web", the service replication controller named "api-service-rc", and the pod named "email-service-pod" | Command:
```bash
kubectl get rc/web service/api-service-rc pods/email-service-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 name... |
create a job named security-scan-job using the image confluentinc/cp-kafka and execute the command "kafka-topics --list" | Command:
```bash
kubectl create job security-scan-job --image=confluentinc/cp-kafka -- kafka-topics --list
```
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": ... |
Forward local port 8888 to port 8088 in the pod named security-service-pod | Command:
```bash
kubectl port-forward pod/security-service-pod 8888:8088
```
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 will be select... |
Apply a taint to nodes in the us-east-1 zone labeling them with the key 'cpu-type' and the value 'gpu-node-12' and mark them as unschedulable using the PreferNoSchedule effect. | Command:
```bash
kubectl taint node -l zone=us-east-1 cpu-type=gpu-node-12: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": ... |
Copy the ~/.config/kube local file to the /tmp/bar_dir directory inside the 'monitoring-agent-pod-6' pod in the 'openfaas' namespace | Command:
```bash
kubectl cp ~/.config/kube openfaas/monitoring-agent-pod-6:/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, ... |
Retrieve the password for the user 'app-cluster' in the kubectl configuration. | Command:
```bash
kubectl config view -o jsonpath='{.users[?(@.name == "app-cluster")].user.password}'
```
What it does:
Display merged kubeconfig settings or a specified kubeconfig file.
You can use --output jsonpath={...} to extract specific values using a jsonpath expression.
Syntax:
`kubectl config view`
Helpful ... |
Get the output of the 'kafka-topics --list' command from the first pod of the database-deployment deployment. | Command:
```bash
kubectl exec deploy/database-deployment -- kafka-topics --list
```
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 omi... |
Get output from running a command inside a container in a pod. | Command:
```bash
kubectl exec analytics-pod -c mycontainer -- sleep 3600
```
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, u... |
Import the 'config_file_path' key from the 'app-config-prod' ConfigMap into the 'order-processing-deployment' deployment. | Command:
```bash
kubectl set env --keys=config_file_path --from=configmap/app-config-prod 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 varia... |
Import the 'log_level' key from the 'ui-config' config map to the 'cache-cluster-deployment' deployment. | Command:
```bash
kubectl set env --keys=log_level --from=configmap/ui-config deployment/cache-cluster-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 ... |
Update the 'gateway' pod by adding or modifying the 'expiration-date' annotation to the value '2024-12-31' | Command:
```bash
kubectl annotate pods gateway expiration-date='2024-12-31'
```
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 than labels and include a... |
Create a new secret named aws-credentials-secret from an env file | Command:
```bash
kubectl create secret generic aws-credentials-secret --from-env-file=path/to/options.env
```
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 th... |
Create a new config map named app-settings by specifying keys and their corresponding file paths. | Command:
```bash
kubectl create configmap app-settings --from-file=settings=/path/to/settings/file1.txt --from-file=key2=/path/to/preferences/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... |
Create a new config map named namespace-config using specified key-values instead of file basenames on disk | Command:
```bash
kubectl create configmap namespace-config --from-file=properties=/path/to/options/file1.txt --from-file=key1=/path/to/parameters/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 cre... |
Create an ingress named 'myapp-ingress' that routes requests from foo.com/bar to svc1:9092 using a TLS secret named "my-cert" | Command:
```bash
kubectl create ingress myapp-ingress --rule="foo.com/bar=svc1:9092,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": "O... |
Import the specific key 'config_file_path' from the 'app-config' config map into the 'cache-cluster-deployment' deployment. | Command:
```bash
kubectl set env --keys=config_file_path --from=configmap/app-config deployment/cache-cluster-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 new ClusterIP service named auth-service-clusterip that forwards traffic from port 5000 to port 9091. | Command:
```bash
kubectl create service clusterip auth-service-clusterip --tcp=5000:9091
```
What it does:
Create a ClusterIP service with the specified name.
Syntax:
`kubectl create service clusterip NAME [--tcp=<port>:<targetPort>] [--dry-run=server|client|none]`
Helpful flags:
"flag": "--output", "short": "-o", "... |
Forward port 8000 from local host and IP 10.19.21.23 to port 8000 in the pod "mypod" | Command:
```bash
kubectl port-forward --address localhost,10.19.21.23 pod/mypod 8000:8000
```
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 p... |
Create an ingress called 'internal-ingress' with a rule that directs requests to 'website.com/example' to 'svc1:8888' | Command:
```bash
kubectl create ingress internal-ingress --rule="website.com/example=svc1:8888,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": "", ... |
List the non-namespaced resources that are supported by the API server. | Command:
```bash
kubectl api-resources --versionspaced=false
```
What it does:
Print the supported API resources on the server.
Syntax:
`kubectl api-resources`
Helpful flags:
"flag": "--output", "short": "-o", "default": "", "usage": "Output format. One of: wide|name. " |
Show the metrics for the 'node-2' node | Command:
```bash
kubectl top node node-2
```
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 (label ... |
Create a new secret named api-key-secret and include keys for each file in the bar folder. | Command:
```bash
kubectl create secret generic api-key-secret --from-file=path/to/data
```
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 of the f... |
List the pod specified in the "setup.yaml" file with YAML output format. | Command:
```bash
kubectl get -f setup.yaml -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 only see result... |
Create a job named 'audit-job' using the image 'jenkins' and run the command 'jenkins-plugin-cli' | Command:
```bash
kubectl create job audit-job --image=jenkins -- jenkins-plugin-cli
```
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 fo... |
Execute the 'yum install -y wget' command in the payment-gateway-pod and display the output. | Command:
```bash
kubectl exec payment-gateway-pod -- yum install -y wget
```
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, u... |
List the replication controller named 'web', the service named 'frontend-rc', and the pod named 'backend-pod' | Command:
```bash
kubectl get rc/web service/frontend-rc pods/backend-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 yo... |
Forward traffic from port 8888 on localhost and IP 10.19.21.23 to port 8080 in the pod named 'proxy-server-pod' | Command:
```bash
kubectl port-forward --address localhost,10.19.21.23 pod/proxy-server-pod 8888:8080
```
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 cr... |
Remove taints with key 'environment' from node 'gpu-node-12' | Command:
```bash
kubectl taint nodes gpu-node-12 environment-
```
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 of: json|ya... |
Set the cluster field in a specific context to a specific cluster | Command:
```bash
kubectl config set contexts.cloud-context.cluster cluster-gamma
```
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 w... |
Retrieve the logs from all containers within the pod "cdn-service-pod" | Command:
```bash
kubectl logs cdn-service-pod --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 pod disruption budget named worker-pdb that will select all pods with the release=1.0.0 label and require a minimum of four of them being available at any point in time | Command:
```bash
kubectl create poddisruptionbudget worker-pdb --selector=release=1.0.0 --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 [--dr... |
Create an ingress named 'myapp-ingress' that routes requests from 'testing.com/module' to 'svc1:3000' with a TLS secret named 'my-cert' | Command:
```bash
kubectl create ingress myapp-ingress --rule="testing.com/module=svc1:3000,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": "", "usa... |
List the desired resources by their type and names | Command:
```bash
kubectl get rc/web service/proxy-server-rc pods/gateway-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 namespace... |
Set the CPU limits for the 'redis' deployment's 'nginx' container to 5 units and the memory limit to 256 megabytes. | Command:
```bash
kubectl set resources deployment redis -c=nginx --limits=cpu=5,memory=256Mi
```
What it does:
Specify compute resource requirements (CPU, memory) for any resource that defines a pod template. If a pod is successfully scheduled, it is guaranteed the amount of resource requested, but may burst up to it... |
Create an ingress resource named 'app2-ingress' that maps requests for 'foo.com/example' to the service 'svc1' on port 3001 and uses the TLS secret 'my-cert' for secure communication. | Command:
```bash
kubectl create ingress app2-ingress --rule="foo.com/example=svc1:3001,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":... |
List deployments in the "custom-version" version of the "custom-deployments" API group, with JSON output format | Command:
```bash
kubectl get deployments.custom-version.custom-deployments -o json
```
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 nam... |
Create a new config map named app-settings using the specified keys instead of file basenames on disk | Command:
```bash
kubectl create configmap app-settings --from-file=settings=/path/to/preferences/file1.txt --from-file=key2=/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... |
Listen on a random port locally, forwarding to the 8000 port in the 'analytics-pod' pod | Command:
```bash
kubectl port-forward pod/analytics-pod :8000
```
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 automati... |
update the environment variable of deployment 'log-aggregator-deployment' with a new value | Command:
```bash
kubectl set env deployment/log-aggregator-deployment SMTP_PASSWORD=your-password
```
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 ... |
Run the command 'mongo --version' in the 'cosmic-container' from the pod 'media-stream-pod' and display the output. | Command:
```bash
kubectl exec media-stream-pod -c cosmic-container -- mongo --version
```
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. ... |
Listen on port 8888 on your local machine and forward the traffic to port 8081 in the 'cdn-service-pod' pod. | Command:
```bash
kubectl port-forward pod/cdn-service-pod 8888:8081
```
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... |
Forward traffic from port 8088 on all addresses to port 5432 in the analytics-pod. | Command:
```bash
kubectl port-forward --address 0.0.0.0 pod/analytics-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 wil... |
Set the CPU and memory limits to 200m and 512Mi respectively, and set the CPU and memory requests to 50m and 2Gi respectively for all containers in the nginx deployment. | Command:
```bash
kubectl set resources deployment nginx --limits=cpu=200m,memory=512Mi --requests=cpu=50m,memory=2Gi
```
What it does:
Specify compute resource requirements (CPU, memory) for any resource that defines a pod template. If a pod is successfully scheduled, it is guaranteed the amount of resource requested... |
set the resource request and limits for all containers in the php deployment | Command:
```bash
kubectl set resources deployment php --limits=cpu=200m,memory=512Mi --requests=cpu=200m,memory=1Gi
```
What it does:
Specify compute resource requirements (CPU, memory) for any resource that defines a pod template. If a pod is successfully scheduled, it is guaranteed the amount of resource requested,... |
Create a copy of the gateway-pod and open a debug session with the my-debugger pod, specifically targeting the warp-drive container. | Command:
```bash
kubectl debug gateway-pod -it --copy-to=my-debugger --container=warp-drive -- sh
```
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 by default if... |
Create a copy of the log-aggregator-pod with a different command for the cosmic-container | Command:
```bash
kubectl debug log-aggregator-pod -it --copy-to=debug-image-1 --container=cosmic-container -- sh
```
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 use... |
Create a new pod named "nginx" using the image "mcr.microsoft.com/dotnet/core/runtime", but override the pod specification with a partial set of values parsed from JSON | Command:
```bash
kubectl run nginx --image=mcr.microsoft.com/dotnet/core/runtime --overrides='{ "apiVersion": "v1.1.0", "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=inli... |
Create a cron job to send email notifications using the specified image and schedule | Command:
```bash
kubectl create cronjob email-notifications --image=confluentinc/cp-kafka --schedule="*/1 * * * *" -- kafka-console-producer --broker-list localhost:9092 --topic test
```
What it does:
Create a cron job with the specified name.
Syntax:
`kubectl create cronjob NAME --image=image --schedule='0/5 * * * ?... |
Forward local traffic on port 8000 to a pod's port 5000 | Command:
```bash
kubectl port-forward pod/api-service-pod 8000 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, a pod will be selected au... |
Begin streaming the logs of the "ruby" container in the "proxy-server-pod" pod. | Command:
```bash
kubectl logs -f -c ruby proxy-server-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"... |
Use the 'vi' editor to edit the 'scheduler-service' service | Command:
```bash
KUBE_EDITOR="vi" kubectl edit svc/scheduler-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... |
Execute the 'ash' command in the 'quantum-quark' container of the 'vpn-service-pod' pod | Command:
```bash
kubectl exec vpn-service-pod -c quantum-quark -- ash
```
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 ... |
Create a custom role named "custom_role" with specific permissions for a specific API Group. | Command:
```bash
kubectl create role custom_role --verb=create,get,proxy --resource=clusterrolebindings.rbac.authorization.k8s.io
```
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|clien... |
Create a copy of the monitoring-pod with different container images by using the kubectl debug command | Command:
```bash
kubectl debug monitoring-pod --copy-to=my-debugger --set-image=*=docker.elastic.co/elasticsearch/elasticsearch
```
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... |
Create a new secret named 'password-secret' using the parameters specified in the 'path/to/parameters.env' env file. | Command:
```bash
kubectl create secret generic password-secret --from-env-file=path/to/parameters.env
```
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 ba... |
Get the output of running the 'irb' command in the 'stardust-shuttle' container in the 'vpn-service-pod' pod. | Command:
```bash
kubectl exec vpn-service-pod -c stardust-shuttle -- irb
```
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, u... |
Create a service for the replicated wordpress using replica set, serving on port 9090 and connecting to the containers on port 8000 | Command:
```bash
kubectl expose rs wordpress --port=9090 --target-port=800000
```
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 po... |
Create a new config map named 'app-name-config' using the 'settings' key from the '/path/to/configs/file1.txt' file and the 'key2' key from the '/path/to/options/file2.txt' file. | Command:
```bash
kubectl create configmap app-name-config --from-file=settings=/path/to/configs/file1.txt --from-file=key2=/path/to/options/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 ... |
Remove a taint from a node | Command:
```bash
kubectl taint nodes dev-node-4 cpu-type: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 of: ... |
Create a new generic secret named my-secret, with ssh-privatekey and ssh-publickey as keys, using the files located at path/to/id_rsa and path/to/id_rsa.pub respectively. | Command:
```bash
kubectl create secret generic my-secret --from-file=ssh-privatekey=path/to/id_rsa --from-file=ssh-publickey=path/to/id_rsa.pub
```
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... |
Set the custom TLS server name to "data-cluster" for the "edge-cluster" cluster entry | Command:
```bash
kubectl config set-cluster edge-cluster --tls-server-name=data-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] [--certificate... |
Import the DEBUG_MODE key from the config map 'namespace-config' and set it as an environment variable in the 'database-deployment' deployment. | Command:
```bash
kubectl set env --keys=DEBUG_MODE --from=configmap/namespace-config deployment/database-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 definitio... |
Retrieve information about a specific pod in YAML format | Command:
```bash
kubectl get -o yaml pod proxy-service-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 you will only se... |
Set resource request and limits for all containers in Jenkins deployment | Command:
```bash
kubectl set resources deployment jenkins --limits=cpu=200m,memory=512Mi --requests=cpu=10,memory=128Mi
```
What it does:
Specify compute resource requirements (CPU, memory) for any resource that defines a pod template. If a pod is successfully scheduled, it is guaranteed the amount of resource reques... |
Remove all the taints with key 'datacenter' from the 'worker-node-3' node | Command:
```bash
kubectl taint nodes worker-node-3 datacenter-
```
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 of: json|y... |
Create a new config map named monitoring-config with the specified keys and file paths | Command:
```bash
kubectl create configmap monitoring-config --from-file=properties=/path/to/data/file1.txt --from-file=key1=/path/to/configurations/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 c... |
import the 'MAX_CONNECTIONS' key from the 'app-secrets' config map into the 'search-engine-deployment' deployment | Command:
```bash
kubectl set env --keys=MAX_CONNECTIONS --from=configmap/app-secrets deployment/search-engine-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 new secret named 'password-secret' with keys for each file in the 'path/to/options' folder | Command:
```bash
kubectl create secret generic password-secret --from-file=path/to/options
```
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 of t... |
Create the secret 'jwt-secret' with keys for each file in the 'path/to/configurations' folder. | Command:
```bash
kubectl create secret generic jwt-secret --from-file=path/to/configurations
```
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 of... |
Copy the local file "/tmp/foo_dir" to the remote pod named "auth-service-pod-11" in the "ingress-nginx" namespace at "/etc/kubernetes" directory. | Command:
```bash
kubectl cp /tmp/foo_dir ingress-nginx/auth-service-pod-11:/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 omitte... |
Execute the 'redis-cli' command in the 'time-machine' container of the 'frontend-pod' pod and display the output | Command:
```bash
kubectl exec frontend-pod -c time-machine -- redis-cli
```
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, us... |
update the environment variable 'SMTP_PASSWORD' for the deployment 'order-processing-deployment' | Command:
```bash
kubectl set env deployment/order-processing-deployment SMTP_PASSWORD=your-password
```
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 mor... |
create a job named cleanup using the golang image with the command "go" | Command:
```bash
kubectl create job cleanup --image=golang -- go
```
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 format. One of: json|... |
Delete the pods and services named "cdn" and "media-stream" | Command:
```bash
kubectl delete pod,service cdn media-stream
```
What it does:
Delete resources by file names, stdin, resources and names, or by resources and label selector.
JSON and YAML formats are accepted. Only one type of argument may be specified: file names, resources and names, or resources and label selector... |
Import the REDIS_HOST key from the ui-config config map and set it as an environment variable in the proxy-service-deployment deployment. | Command:
```bash
kubectl set env --keys=REDIS_HOST --from=configmap/ui-config 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 definitions... |
Create an ingress called 'external-ingress' that routes requests from site.com/example to svc1:3000, using the tls secret "my-cert" | Command:
```bash
kubectl create ingress external-ingress --rule="site.com/example=svc1:3000,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... |
Retrieve the details of a pod specified in the "options.yaml" file, using the json output format. | Command:
```bash
kubectl get -f options.yaml -o json
```
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 only see resu... |
Embed the certificate authority data for the cluster-alpha cluster entry using the command: 'kubectl config set-cluster cluster-alpha --embed-certs --certificate-authority=<path_to_cert_file>' where <path_to_cert_file> is the file path to the Kubernetes certificate authority file. | Command:
```bash
kubectl config set-cluster cluster-alpha --embed-certs --certificate-authority=~/.kube/dev-cluster/kubernetes.ca.crt
```
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... |
Update the 'env' annotation of the 'media-stream' pod to the value 'staging'. | Command:
```bash
kubectl annotate pods media-stream env=staging
```
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 than labels and include arbitrary str... |
Add a taint with key 'zone' and value 'kube-master-9:PreferNoSchedule' on all nodes with the label 'team=devops' | Command:
```bash
kubectl taint node -l team=devops zone=kube-master-9: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": "Outp... |
Create a port forwarding between your local machine's port 9090 and the pod backend-pod's port 9090. | Command:
```bash
kubectl port-forward pod/backend-pod 9090 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... |
Retrieve the snapshot logs from the container "mypod-1" in the deployment "database-deployment-1" | Command:
```bash
kubectl logs deployment/database-deployment -c mypod-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": "--conta... |
Rename a context in the kubeconfig file | Command:
```bash
kubectl config rename-context cloud-context edge-context
```
What it does:
Renames a context from the kubeconfig file.
CONTEXT_NAME is the context name that you want to change.
NEW_NAME is the new name you want to set.
Note: If the context being renamed is the 'current-context', this field will also b... |
Taint nodes with label 'environment=production' for 'hardware=db-node-7' with 'PreferNoSchedule' | Command:
```bash
kubectl taint node -l environment=production hardware=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": "", "us... |
Create a new LoadBalancer service named cdn-service-lb that listens on port 5000 and forwards traffic to port 5001. | Command:
```bash
kubectl create service loadbalancer cdn-service-lb --tcp=5000:5001
```
What it does:
Create a LoadBalancer service with the specified name.
Syntax:
`kubectl create service loadbalancer NAME [--tcp=port:targetPort] [--dry-run=server|client|none]`
Helpful flags:
"flag": "--output", "short": "-o", "def... |
Add a taint to the 'web-node-8' node with the key 'dedicated' and no value | Command:
```bash
kubectl taint nodes web-node-8 dedicated: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 of: ... |
Get detailed information about a specific node in the cluster. | Command:
```bash
kubectl describe nodes analytics-node-9.analytics-cluster.local
```
What it does:
Show details of a specific resource or group of resources.
Print a detailed description of the selected resources, including related resources such as events or controllers. You may select a single object by name, all ob... |
Update the 'proxy' pod with the annotation 'deployment-script' and the value 'https://example.com/deploy.sh'. | Command:
```bash
kubectl annotate pods proxy deployment-script='https://example.com/deploy.sh'
```
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 than l... |
Forward local port 5000 to port 6379 in the 'cdn-service-pod' pod | Command:
```bash
kubectl port-forward pod/cdn-service-pod 5000 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... |
Run the 'go' command inside the first container of the 'load-balancer-deployment' deployment. | Command:
```bash
kubectl exec deploy/load-balancer-deployment -- go
```
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 th... |
Forward local traffic on port 8088 to the pod's port 8081 for the pod named 'cdn-service-pod' | Command:
```bash
kubectl port-forward pod/cdn-service-pod 8088:8081
```
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... |
Add a taint with the key 'cpu-type' on nodes having the label customer=acme-corp | Command:
```bash
kubectl taint node -l customer=acme-corp cpu-type=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": "... |
Update a specific field of a node using a strategic merge patch. | Command:
```bash
kubectl patch node db-node-7 -p $'spec:\n someField: newValue'
```
What it does:
Update fields of a resource using strategic merge patch, a JSON merge patch, or a JSON patch.
JSON and YAML formats are accepted.
Syntax:
`kubectl patch (-f FILENAME | TYPE NAME) [-p PATCH|--patch-file FILE]`
Helpful fl... |
Forward local traffic on port 8080 to port 3000 in the 'analytics-pod'. | Command:
```bash
kubectl port-forward pod/analytics-pod 8080 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 be selected auto... |
create a LoadBalancer service named 'cdn-service-lb' that forwards traffic from port 8000 to port 9000 | Command:
```bash
kubectl create service loadbalancer cdn-service-lb --tcp=8000:9000
```
What it does:
Create a LoadBalancer service with the specified name.
Syntax:
`kubectl create service loadbalancer NAME [--tcp=port:targetPort] [--dry-run=server|client|none]`
Helpful flags:
"flag": "--output", "short": "-o", "def... |
Listen on ports 8080 and 6000 on your local machine, and forward data to/from ports 8080 and 6000 in the 'frontend-pod' pod. | Command:
```bash
kubectl port-forward pod/frontend-pod 8080 8080
```
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... |
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