Supported Tools and Commands

K8s MCP Server provides access to several Kubernetes CLI tools and additional utilities for command piping.

Kubernetes CLI Tools

kubectl

The standard command-line tool for interacting with Kubernetes clusters.

Examples:

kubectl get pods
kubectl get deployments
kubectl describe pod my-pod
kubectl get services
kubectl logs my-pod
kubectl apply -f deployment.yaml

helm

The package manager for Kubernetes, used to install and manage applications.

Examples:

helm list
helm install my-release my-chart
helm upgrade my-release my-chart
helm uninstall my-release
helm repo add bitnami https://charts.bitnami.com/bitnami
helm search repo nginx

istioctl

The command-line tool for the Istio service mesh, used to manage and configure Istio.

Examples:

istioctl analyze
istioctl proxy-status
istioctl dashboard
istioctl x describe pod my-pod
istioctl profile list
istioctl version

argocd

The command-line tool for ArgoCD, a GitOps continuous delivery tool for Kubernetes.

Examples:

argocd app list
argocd app get my-app
argocd app sync my-app
argocd cluster list
argocd repo list
argocd project list

Cloud Provider CLI Tools

AWS CLI

The AWS Command Line Interface for managing AWS services, including EKS.

Examples:

aws eks list-clusters
aws eks describe-cluster --name my-cluster
aws eks update-kubeconfig --name my-cluster --region us-west-2

Google Cloud SDK (gcloud)

The Google Cloud command-line tool for managing GCP services, including GKE.

Examples:

gcloud container clusters list
gcloud container clusters describe my-cluster
gcloud container clusters get-credentials my-cluster --region us-central1

Azure CLI (az)

The Azure command-line tool for managing Azure services, including AKS.

Examples:

az aks list
az aks show --name my-cluster --resource-group my-group
az aks get-credentials --name my-cluster --resource-group my-group

Utility Tools for Command Piping

The Docker image includes a rich set of tools that can be used for command piping and output processing:

Text Processing

jq: JSON processor (kubectl get pods -o json | jq '.items[].metadata.name')
grep: Pattern matching (kubectl get pods | grep Running)
sed: Stream editor (kubectl get pods | sed 's/Running/UP/g')
awk: Text processing (kubectl get pods | awk '{print $1}')
findutils: Collection of find utilities
gawk: GNU awk implementation

Network Utilities

curl: HTTP client (curl -s https://pod-ip:port | jq .)
wget: Alternative HTTP client
net-tools: Network utilities (includes netstat, ifconfig)
dnsutils: DNS utilities (includes dig, nslookup)

File Management

tar: Archive utility
gzip: Compression utility
zip/unzip: Zip file utilities

Other Utilities

less: Pager for viewing output
vim: Text editor
openssh-client: SSH client utilities
gnupg: Encryption utilities

Command Piping Examples

The server supports Unix command piping to filter and transform output:

# Extract pod names as a list
kubectl get pods -o json | jq -r '.items[].metadata.name'

# Find deployments in a non-Running state
kubectl get deployments | grep -v Running

# Format pod listing with custom columns
kubectl get pods | awk '{printf "%-30s %-10s\n", $1, $3}'

# Get container images running in the cluster
kubectl get pods -o jsonpath='{.items[*].spec.containers[*].image}' | tr -s '[[:space:]]' '\n' | sort | uniq

# Count pods by status
kubectl get pods | grep -v NAME | awk '{print $3}' | sort | uniq -c

# Fetch and process an API
kubectl run curl --image=curlimages/curl -i --rm -- curl -s https://api.example.com | jq .

API Functions

Each CLI tool has documentation and execution functions:

Documentation Functions

describe_kubectl(command=None): Get documentation for kubectl commands
describe_helm(command=None): Get documentation for Helm commands
describe_istioctl(command=None): Get documentation for Istio commands
describe_argocd(command=None): Get documentation for ArgoCD commands

Execution Functions

execute_kubectl(command, timeout=None): Execute kubectl commands
execute_helm(command, timeout=None): Execute Helm commands
execute_istioctl(command, timeout=None): Execute Istio commands
execute_argocd(command, timeout=None): Execute ArgoCD commands

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