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  2. Runtime Fabric (2.8)
  3. Setting Up Runtime Fabric
  4. Installing Runtime Fabric

  5. Installing Multiple Instances on a Single Cluster

Installing Multiple Instances of Runtime Fabric on a Single Cluster

Installing multiple instances of Anypoint Runtime Fabric enables you to share the same cluster among multiple Runtime Fabrics, which helps you to use resources efficiently.

  • To use this feature, you must upgrade to the minimum version of 2.2.5 of the Runtime Fabric agent that supports multiple instances.

  • Agent namespaces map one-to-one to app namespaces. You cannot share app namespaces amongst multiple instances of Runtime Fabric on the same cluster.

For multiple instances, the first Runtime Fabric agent installation creates a custom resource definition (CRD) for persistencegateways.rtf.mulesoft.com and priority class rtf-components-high-priority resources. Runtime Fabric agent doesn’t clean up these resources when you uninstall the agent.

Install Multiple Instances of Runtime Fabric

To install multiple instances of Anypoint Runtime Fabric on a single BYOK (Bring Your Own Kubernetes) cluster, follow these steps:

  1. Create a Runtime Fabric using Runtime Manager.

  2. Create a custom namespace to install the Fabric created in the previous step:

    kubectl create ns <rtf_namespace>

  3. Create a Docker pull secret to pull the Runtime Fabric component images for the previously created namespace:

    kubectl create secret docker-registry rtf-pull-secret --namespace <rtf_namespace> --docker-server=<docker_registry_url> --docker-username=<docker_registry_username> --docker-password=<docker_ registry_password>

  4. Add the Runtime Fabric helm repository:

    helm repo add <name> <helm_repo_url> --username <your_username> --password <your_password>

  5. Optionally, you can configure the shared tenancy. Refer to Configure Authorized Namespaces for details.

  6. Download and configure the values.yaml file from the Anypoint Platform UI.

  7. Set the required parameters for the values.yaml file.

  8. Install Runtime Fabric on the cluster:

    helm install runtime-fabric rtf/rtf-agent --version <rtf_version> -f values.yaml -n <rtf_namespace>

Values.yaml File Required Parameters

The values for these required parameters are set when you create the Runtime Fabric instance in Runtime Manager. If you’re not using a local registry, use the default values for the registry URL and pull secret.

Key Value Example

activationData

Activation Data

YW55cG9pbnQubXVsZXNvZnQuY29tOjBmODdmYzYzLTM3MWUtNDU2Yy1iODg5LTU5NTkyNjYyZjUxZQ==

rtfRegistry

Registry URL

US rtf-runtime-registry.kprod.msap.io

EU rtf-runtime-registry.kprod-eu.msap.io

pullSecretName

Registry pull secret

rtf-pull-secret

muleLicense

Mule license for applications

Mule license key (must be Base64-encoded)

Values.yaml Optional Parameters

Set the following optional parameters as needed:

Key Description Example

authorizedNamespaces

Enables shared tenancy

authorizedNamespaces=true

crds.install

Enables installation of Crds and PriorityClass

install=true

proxy.http.proxy
proxy.http.no_proxy `

Proxy and no_proxy values

- http://<user>:<pass>@<10.0.0.1>:<8080>
- <1.1.1.1:8888,2.2.2.2:9999>

proxy.monitoring.proxy

Monitoring proxy values

socks5://<user>:<pass>@<10.0.0.2>:<8080>

global.containerLogPaths

Filebeat read path

- /var/lib/docker/
- /var/log/containers
- /var/log/pods
For the first agent being installed on the cluster, set the value for crds.install to true.
Set crds.install to false for all the subsequent agent installations on the same cluster.

Values.yaml Reference

The following is an example of the values.yaml file:

activationData: <activation_data>
  proxy:
    http_proxy:
    http_no_proxy:
    monitoring_proxy:
custom_log4j_enabled: true
muleLicense: <mule_license_key>
global:
  crds:
    install: true
  authorizedNamespaces: false
  image:
    rtfRegistry: rtf-runtime-registry.kprod.msap.io
    pullSecretName: rtf-pull-secret
  containerLogPaths:
  - /var/lib/docker/containers
  - /var/log/containers
  - /var/log/pods

Deploy Mule Applications

  1. To deploy Mule applications, create an app-namespace for each of installed agent:

    apiVersion: v1
kind: Namespace
metadata:
  name: <app-namespace>
  labels:
    rtf.mulesoft.com/agentNamespace: <rtf_namespace>
    rtf.mulesoft.com/envId: <environment_id>
    rtf.mulesoft.com/org: <org_id>
    rtf.mulesoft.com/role: workers

  2. Create the ingress in the new <rtf_namespace>:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: rtf-ingress
  namespace: <rtf_namespace>
  annotations:
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  ingressClassName: rtf-nginx
  rules:
    - host: "testrtf.com"
      http:
        paths:
          - pathType: Prefix
            path: "/app-name(/|$)(.*)"
            backend:
              service:
                name: service
                port:
                  name: service-port

Use a different host name per <rtf_namespace>. If multiple ingresses define different paths for the same host, the ingress controller merges the definitions. As a result, Mule applications with the same name are not accessible, which causes a k8s issue, not a Runtime Fabric issue.

(Optional) Configure Authorized Namespaces

You can optionally configure authorized namespaces, which enables you to deploy Runtime Fabric alongside other services in a Kubernetes cluster.

You must create the authorized-namespaces ConfigMap file before installing Runtime Fabric for the Runtime Fabric namespace. Additionally, you must name the ConfigMap, authorized-namespaces. The following example shows a ConfigMap file:

apiVersion: v1
kind: ConfigMap
metadata:
  name: authorized-namespaces
  namespace: <rtf_namespace>
data:
  APPLICATION_NAMESPACE_1: "<app_namespace_1>"
  APPLICATION_NAMESPACE_2: "<app_namespace_1>

The rtf:resource-metrics-collector ClusterRole has cluster-wide permissions to get and list nodes, pods, and namespaces and has watch permissions for nodes. The role ClusterRole is defined as follows: The following example shows a ClusterRole role:

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: rtf:resource-metrics-collector
  labels:
    {{- include "labels.standard" . | nindent 4 }}
rules:
  - apiGroups: [""]
    resources: ["nodes", "pods", "namespaces"]
    verbs: ["list", "get"]
  - apiGroups: [""]
    resources: ["nodes"]
    verbs: ["watch"]

Configure Additional Namespaces

To configure an additional namespace for application deployments and then add the necessary labels to the namespace, follow these steps:

  1. Create a YAML file with the following contents:

    apiVersion: v1
kind: Namespace
metadata:
  name: <app-namespace>
  labels:
    rtf.mulesoft.com/agentNamespace: <rtf_namespace>
    rtf.mulesoft.com/envId: <environment_id>
    rtf.mulesoft.com/org: <org_id>
    rtf.mulesoft.com/role: workers

  2. Apply the previously created file:

    kubectl apply -f <filename>.yaml

  3. Repeat Steps 1 and 2 to add as many namespaces as you need.

  4. Create the RoleBinding for the Runtime Fabric agent ClusterRole that includes the Runtime Fabric agent ServiceAccount by applying the following configuration in your additional namespace:

    kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: <rb_name>
  namespace: <app_namespace>
subjects:
  - kind: ServiceAccount
    name: rtf-agent
    namespace: <rtf_namespace>
roleRef:
  kind: ClusterRole
  name: rtf:agent-<rtf_namespace>
  apiGroup: rbac.authorization.k8s.io

See Also

Installing Runtime Fabric