CLI

The RCTL utility provides the means to manage the lifecycle of namespaces across the fleet of managed clusters. The following operations can be performed on namespaces managed by the controller on the fleet of clusters.

Resource	Create	Get	Update	Delete	Status	Publish
Namespace	YES	YES	YES	YES	YES	YES

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Managed Namespaces

As a multi cluster operations platform, the Controller creates/deletes namespaces on managed Kubernetes clusters.

For immediate operations on a namespace on a cluster, use the Zero Trust KubeCTL to manage these directly.

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Create Namespace

Namespace can be created in three (3) types

1. Namespace Wizard
2. Repo
3. Upload

Deploying the namespace can be done for a specific cluster or by cluster labels. For placement on specific cluster use placementType: ClusterSpecific For labels use placementType: ClusterLabels

Create a new "managed" namespace in the current Project using the Yaml config spec

Declarative

To create/update a namespace with the declarative method, use the below command

./rctl apply -f namespace.yaml

Type: RafayWizard

Below is an example of namespace yaml file with the type RafayWizard and placementType ClusterSpecific

kind: Namespace
apiVersion: infra.k8smgmt.io/v3
metadata:
  name: abc
  description: desc-01
  project: defaultproject
  labels:
    env: dev
    priority: high
    severity: low
  annotations:
    a1: v3
    a2: v4
spec:
  type: RafayWizard
  resourceQuota:
    cpuRequests: 2
    memoryRequests: 2
    cpuLimits: 1
    memoryLimits: 2
  limitRange:
    podLimits:
      maxCpu: 3
      maxMemory: 2
      minCpu: 1
      minMemory: 1
      maxLimitRequestRatioCpu: 1
      maxLimitRequestRatioMemory: 1
    containerLimits:
      maxCpu: 2
      maxMemory: 2
      minCpu: 2
      minMemory: 2
      defaultCpu: 2
      defaultMemory: 2
      defaultRequestCpu: 2
      defaultRequestMemory: 2
      maxLimitRequestRatioCpu: 1
      maxLimitRequestRatioMemory: 1
  placement:    
    labels:
    - key: rafay.dev/clusterName
      value: demo-cluster-01

Type: Repo

Below is an example of namespace yaml file with the type Repo and placementType ClusterLabels

kind: Namespace
apiVersion: infra.k8smgmt.io/v3
metadata:
  name:rctl-repo2
  project: defaultproject
spec:
  type: Repo
  repoRef:git-cred
  repoArtifactMeta:
    git:
      revision: main3
      repoArtifactFiles:
      - name: abc.yaml
        relPath: NameSpace/abc.yaml
        fileType: K8sYAMLFile
  placement:    
    labels:
    - key: rafay.dev/clusterId
      value: qweed

Type: Upload

Below is an example of namespace yaml file with the type Upload and placementType ClusterSpecific

kind: Namespace
apiVersion: infra.k8smgmt.io/v3
metadata:
  name: upload-ns-03
  project: defaultproject
spec:
  type: Upload
  namespaceFromFile: "/Users/Downloads/abc.yaml"
  placement:  
    labels:
    - key: rafay.dev/clusterName
      value: xyz

Important

Avoid upper case characters for the name because Kubernetes does not support it

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List Namespace

The below command is to retrieve/list all "managed namespaces" in the currently specified "Project".

./rctl get namespace --v3
+-------------------------+----------+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+
| NAME                    | TYPE     | PLACEMENT DETAILS                                      | LABELS                                                                                                                                                                                                                                                                 | ANNOTATIONS |
+-------------------------+----------+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+
| new-ns                  | Wizard   | rafay.dev/clusterName:new-prod-eks                     |                                                                                                                                                                                                                                                                        |             |
+-------------------------+----------+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+
| ns-1                    | Wizard   | rafay.dev/clusterName:new-prod-eks                     |                                                                                                                                                                                                                                                                        |             |
+-------------------------+----------+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+

The below command is to retrieve a specific namespace from a project. When viewing a specific namespace, labels and annotations associated with the namespace are also shown

./rctl get namespace nov-ns --v3
+--------+--------+----------------------------------------+--------+-------------+
| NAME   | TYPE   | PLACEMENT DETAILS                      | LABELS | ANNOTATIONS |
+--------+--------+----------------------------------------+--------+-------------+
| nov-ns | Wizard | rafay.dev/clusterName:prod-eks         |        |             |
+--------+--------+----------------------------------------+--------+-------------+

Or you can use the below commands to get more information of the namespace in json or yaml format

./rctl get namespace <namespace-name> -o json

./rctl get namespace <namespace-name> -o yaml

Example:

./rctl get namespace demo-ns -o yaml
apiVersion: infra.k8smgmt.io/v3
kind: Namespace
metadata:
  name: demo-ns
  project: prod-test
spec:
  limitRange:
    container: {}
    pod: {}
  namespaceMeshPolicyParams: {}
  placement:
    labels:
    - key: rafay.dev/clusterName
      value: prod-eks
  resourceQuotas: {}
status:
  conditionStatus: 2
  conditionType: NamespaceReady
  lastUpdated:
    nanos: 265072687
    seconds: 1668838314
  reason: namespace is ready

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Delete Namespace

Delete a "managed namespace" in the current project context using the following command. Users are allowed to delete one or more namespaces at once. Below is an example of multiple namespace deletion Deleting a namespace will also delete the namespace from the clusters where the namespace is published.

./rctl delete namespace -f config.yaml

Important

Managed namespaces cannot be deleted if they are in active use by workloads or blueprints

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Namespace Status

To know the status of a namespace, use the below command

./rctl status namespace <ns-name>

Output

+---------+------+----------------+------------------+------------------+----------------+
| NAME    | TYPE | PUBLISHPENDING | ASSIGNEDCLUSTERS | DEPLOYEDCLUSTERS | FAILEDCLUSTERS |
+---------+------+----------------+------------------+------------------+----------------+
| demo    | Repo | false          | demo-cluster     | demo-ckuster     |                |
+---------+------+----------------+------------------+------------------+----------------+

Note: For help commands, append -h or --help after any of these commands. Example: .rctl get namespace -h or .rctl get namespace --help

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Templating

Users can also create multiple namespaces with a set of defined configurations. The template file contains a list of objects that helps to create multiple namespace(s) from a single template.

Below is an example of a namespace config template

# Generated: {{now.UTC.Format "2006-01-02T15:04:05UTC"}}
#      With: {{command_line}}
{{ $envName := environment "PWD" | basename}}
{{ $glbCtx := . }}{{ range $i, $project := .ProjectNames }}
{{ $ctxNS := $glbCtx }}{{ range $j, $ns := $glbCtx.Namespaces }}
apiVersion: infra.k8smgmt.io/v3
kind: Namespace
metadata:
  project: {{$envName}}-{{$project}}
  name: {{ $ns.Name }}
  labels:{{$q := $ctxNS}}{{range $k, $label := $ns.Labels}}
    {{ $label.Key }}: {{ $label.Value }}{{end}}
    environment: {{$envName}}
spec:
  drift:
    enabled: false
  placement:
    labels:{{$c := $ctxNS}}{{range $l, $cluster := $ctxNS.ClusterNames}}
      - key: rafay.dev/clusterName
        value: {{$envName}}-{{$project}}-{{ $cluster }}{{end}}
  resourceQuotas:
    configMaps: "{{ $c.ResourceQuota.ConfigMaps }}"
    cpuLimits: {{ $c.ResourceQuota.CpuLimits }}
    cpuRequests: {{ $c.ResourceQuota.CpuRequests }}
    memoryLimits: {{ $c.ResourceQuota.MemoryLimits }}
    memoryRequests: {{ $c.ResourceQuota.MemoryRequests }}
    storageRequests: {{ $c.ResourceQuota.StorageRequests }}
---{{end}}
{{end}}

Users can create one or more namespace(s) with the required configuration defined in the template file. Below is an example of an namespace value file. This file helps to create namespace with the specified objects

Namespaces:
  - Name: ns-frontend
    Labels:
      - Key: component
        Value: frontend
      - Key: app
        Value: service-xyz
  - Name: ns-backend
    Labels:
      - Key: component
        Value: backend
      - Key: app
        Value: service-xyz
  - Name: ns-database
    Labels:
      - Key: component
        Value: database
      - Key: app
        Value: service-xyz
ResourceQuota:
  ConfigMaps: "100.000000"
  CpuLimits: 500.000000m
  CpuRequests: 500.000000m
  MemoryLimits: 500.000000Mi
  MemoryRequests: 500.000000Mi
  StorageRequests: "1.000000"

Important

Only the objects defined in the template must be present in the value files

Use the command below to create namespace(s) with the specified configuration once the value file(s) are prepared with the necessary objects

 ./rctl apply -t namespace.tmpl --values values.yaml

where, - namespace.tmpl: template file - value.yaml: value file

Refer Templating for more details on Templating flags and examples

Important

Refer here for the deprecated RCTL commands

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