h2. POC steps
* Use operator-sdk to do it.
{code:java}
operator-sdk olm-catalog gen-csv --csv-version 0.0.1 --csv-config memcached-operator.0.0.1.clusterserviceversion.yaml
{code}
* Update the file created regards the missing information and also its details.
{code:java}
# This file defines the ClusterServiceVersion (CSV) to tell the catalog how to display, create and
# manage the application as a whole. If changes are made to the CRD for this application kind,
# make sure to replace those references below as well.
apiVersion: operators.coreos.com/v1alpha1
kind: ClusterServiceVersion
metadata:
annotations:
capabilities: Basic Install
name: memcachedoperator memcached-operator .v0.0.1
namespace: memcached-operator
spec:
install apiservicedefinitions : {}
strategy customresourcedefinitions : deployment
spec owned :
permissions - kind : Memcached
- serviceAccountName name : memcached-operator memcacheds.cache.example.com
rules version : v1alpha1
- apiGroups description : Operator Memcached Desc
- "*" displayName: Memcached Operator
resources description : Operator Camila description
- "*" displayName: Memcached Operator
verbs install :
- "*" spec:
deployments:
- name: memcached- app- operator
spec:
replicas: 1
selector:
matchLabels:
app name : memcached- app- operator
strategy: {}
template:
metadata:
labels:
app name : memcached- app- operator
spec:
containers:
- name command : memcached
image: cmacedo/ - memcached-operator :v0.0.1
command env :
- /usr/local/bin/memcached-operator name: WATCH_NAMESPACE
ports valueFrom :
fieldRef:
fieldPath: metadata.namespace
- containerPort name : 8080 POD_NAME
protocol valueFrom : TCP
imagePullPolicy fieldRef : Always
restartPolicy fieldPath : Always metadata.name
terminationGracePeriodSeconds - name : 5 OPERATOR_NAME
serviceAccountName value : memcached-operator
serviceAccount image : cmacedo/ memcached-operator
customresourcedefinitions : v0.0.1
owned imagePullPolicy : Always
name: memcached - description operator
resources : Represents a cluster of Memcached apps {}
displayName serviceAccountName : Memcached App memcached-operator
kind permissions : Memcached
name - rules : memcacheds.cache.example.com
version - apiGroups : v1alpha1
- ""
resources:
- kind: Deployment pods
version: v1beta2 - services
- kind: ReplicaSet endpoints
version: v1beta2 - persistentvolumeclaims
- kind events
- configmaps
- secrets
verbs : Pod
version - '*'
- apiGroups : v1
specDescriptors - ""
resources :
- description namespaces
verbs : The desired number of member Pods for the deployment.
displayName - get
- apiGroups : Size
path - apps
resources : size
x - descriptors deployments
- daemonsets
- replicasets
- statefulsets
verbs :
- ' urn:alm:descriptor:com.tectonic.ui:podCount * '
statusDescriptors - apiGroups :
- description: The current status of the application monitoring . coreos.com
displayName resources : Status
path - servicemonitors
verbs : phase
x - descriptors: get
- 'urn:alm:descriptor:io.kubernetes.phase' create
- description apiGroups : Explanation for the current status of the application.
displayName - apps
resourceNames : Status Details
path - memcached-operator
resources : reason
x - descriptors deployments/finalizers
verbs :
- 'urn update
- apiGroups : alm:descriptor:io
- cache . kubernetes example . phase com
resources : reason
- ' *'
keywords verbs :
- memcached '*'
serviceAccountName: memcached - app operator
strategy: deployment
installModes:
- supported: true
type: OwnNamespace
- supported: true
type: SingleNamespace
- supported: true false
type: MultiNamespace
- supported: true
type: AllNamespaces
displayName maturity : Memcached Application alpha
provider:
name: Example Camila, Inc
url: www.example.com
maturity: alpha
version: 0.0.1
keywords:
- memcached
- app
maintainers:
- email: corp@example.com
name: Some Corp
description: Main enterprise application providing business critical features with high availabilty and no manual intervention.
labels:
alm-owner-enterprise-app: memcached- app- operator
alm-status-descriptors: memcached- app- operator.v0.0.1
{code}
* Create the namespace memcached-operator (oc new-project memcached-operator )
* Add ClusterServiceVersion
It will add the operator in the Developer Catalogue
{code:java}
$ kubectl apply -f memcachedoperator.0.0.1.csv.yaml
{code}
* Add CRD - ( Customer Resource Definition)
It will add the type of the operator in the cluster/namespace
{code:java}
kubectl create -f deploy/crds/cache_v1alpha1_memcached_crd.yaml
{code}
* Add the RBAC rules created for the operator
{code:java}
$ kubectl create -f deploy/service_account.yaml
$ kubectl create -f deploy/role.yaml
$ kubectl create -f deploy/role_binding.yaml
{code}
* Create the following resources and apply them.
{code:java}
apiVersion: operators.coreos.com/v1alpha1
kind: CatalogSource
metadata:
name: memcached-operator
namespace: memcached-operator
spec:
displayName: Memcached Operator
image: ""
publisher: community-operators
sourceType: grpc
{code}
{code:java}
apiVersion: operators.coreos.com/v1alpha2
kind: OperatorGroup
metadata:
name: memcached-operator
namespace: memcached-operator
spec:
serviceaccount: memcached-operator
targetNamespaces:
- memcached-operator
{code}
{code:java}
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
name: memcached-operator
namespace: memcached-operator
spec:
name: memcached-operator
source: memcached-operator
sourceNamespace: memcached-operator
startingCSV: memcached-operator.0.0.1
installPlanApproval: Automatic
channel: alpha
{code}
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