This page contains a list of commonly used snctl commands and flags.

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snctl autocomplete

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BASH

source <(snctl completion bash) # set up autocomplete in bash into the current shell, bash-completion package should be installed first.
echo "source <(snctl completion bash)" >> ~/.bashrc # add autocomplete permanently to your bash shell.

You can also use a shorthand alias for snctl that also works with completion:

alias sn=snctl
complete -o default -F \_\_start_snctl sn

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ZSH

source <(snctl completion zsh)  # set up autocomplete in zsh into the current shell
echo '[[ $commands[snctl] ]] && source <(snctl completion zsh)' >> ~/.zshrc # add autocomplete permanently to your zsh shell

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snctl apply

apply manages resources through files defining StreamNative Cloud resources. It creates and updates StreamNative Cloud resources through running snctl apply. This is recommended way of managing StreamNative Cloud resources in production.

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Creating and updating resources

The manifests of StreamNative Cloud resources can be defined in YAML or JSON. The file extension .yaml, .yml, and .json can be used.

snctl apply -f ./my-manifest.yaml         # create resource(s)
snctl apply -f ./my1.yaml -f ./my2.yaml   # create from multiple files
snctl apply -f ./dir                      # create resource(s) in all manifest files in dir

# Create multiple resource(s) from stdin
snctl apply -f - <<EOF
apiVersion: cloud.streamnative.io/v1alpha1
kind: User
metadata:
  name: john.doe@test.local
  namespace: myorg
spec:
  email: john.doe@test.local
  name:
    first: John
    last: Doe
  type: external

---

apiVersion: cloud.streamnative.io/v1alpha1
kind: RoleBinding
metadata:
  name: john.doe@test.local
  namespace: myorg
spec:
  roleRef:
    apiGroup: cloud.streamnative.io
    kind: Role
    name: admin
  subjects:
    - apiGroup: cloud.streamnative.io
      kind: User
      name: john.doe@test.local
EOF

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Viewing and finding resources

snctl get pulsarclusters                      # List all pulsar clusters in the organization
snctl get pulsarclusters mycluster            # List a particular pulsar cluster
snctl get puslarclusters mycluster -o yaml    # Get the manifest of a pulsar cluster

# Describe commands with verbose output
snctl describe pulsarcluster mycluster

# List Pulsar Clusters Sorted by Creation Time
snctl get pulsarclusters --sort-by=.metadata.creationTimestamp

# Show labels for all clusters (or any other StreamNative Cloud object that supports labelling)
snctl get pulsarclusters --show-labels

# Get the Pulsar Clusters with label app=myapp
snctl get pulsarclusters --selector=app=myapp

# Check which Pulsar Clusters are ready and their locations with custom-columns
snctl get pulsarclusters -o custom-columns='CLUSTER NAME:.metadata.name,LOCATION:.spec.location,STATUS:.status.conditions[?(@.type=="Ready")].status'

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Deleting resources

snctl delete -f ./sa.yaml                     # Delete a service account using the type and name specified in sa.yaml
snctl delete pulsarcluster unwanted --now     # Delete a pulsar cluster with no grace period
snctl delete user,rolebinding baz foo         # Delete user and rolebinding with same names "baz" and "foo"
snctl delete user,rolebinding -l name=myLabel # Delete usersand rolebindings with label name=myLabel

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Resource types

List all supported resource types along with their shortnames, API group, whether they are namespaced (organizational scoped), and kind.

snctl api-resources

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Service Context Management

Manage and use service contexts to interact with Pulsar and Kafka clusters via snctl. The active context determines the target cluster for pulsar and kafka commands.

# Context Switching & Viewing
snctl context use <cluster-name>          # Set the active Service Context (typically the Pulsar cluster name)
snctl context current                     # Show the currently active Service Context

# Interacting with the Active Context's Cluster
snctl pulsar client ...   # Act as pulsar client on the active cluster
snctl pulsar admin ...            # Run pulsar admin commands on the active cluster
snctl kafka client ...    # Act as kafka client on the active cluster
snctl kafka admin ...             # Run kafka admin commands on the active cluster

# Running Commands as a Service Account (Overrides context's user auth)
snctl pulsar admin namespaces list --as-service-account <sa-name> # Run command as specific SA
snctl kafka admin groups list --use-service-account              # Interactively select an SA to run as