Operator 101 - Speaker Deck

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l eo T i T @ N T aI F I 1 4 3 2 d N # NF T C I I T M F F 66 777 60 4. 6 2 6 46 / 1 7 60/ 66 777 60 4. 6 2 6 46 / 1 7 60/ 66 777 60 4. 6 2 6 46 / 1 7 60/ 66 777 60 4. 6 2 6 46 / 1 7 60/ 6

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8 / / ) (/ . / @ K L I / 13

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Cloud Native Meetup Tokyo Cloud Native Developer JP ) () ) 14

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https://openshift.connpass.com/ OpenShift UserGroup 15

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Today’s Agenda 1 2 3 Kubernetes Core Why / What Operator How to get Operator 21

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Copyright 2019 Red Hat K.K. Cloud Infrastructure Resources Hardware, Virtualization, Cloud and Service Provider Certifications CI/CD Workload Serverless Workload Machine Learning Workload IoT Workload Workload Abstraction Any Applications Resource Abstraction Any Resources Company Core Value? (*Not Kubernetes) 8 C 8 => K ) ( ) 35

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Copyright 2019 Red Hat K.K. 2 7 00 - ,2 , 0 : , 7, S 7 IE LC A S EC LCH S LMI S LCLP M CLP KK S II 1H CLH C A E LK S LH A KCKL S ,A KK A KK L A LCH S -HKL H L C A K S MCE IEHP 1 LBH HEHAP S E L H 1H CLH C A E LK S 1 L C A B A D S E L H M CLP - C A S A - C A S M CLP LC C LCH K S 2 LOH D HEC P S CK KL HN P S KHM A L LCH S IA L B S E L H IA L B S A IA L B S II IA L B S M CLP L B K S H LC MHMK M CLP C A S 1MELC NC H L HEEHML S , L I CK H L C ACKL P S EMKL II ,E KLC CLP S 1H CLH E L C L S 0HA AA A LCH c R RV g eb kl i faVh T dUYT HM 7B 2 O L D 7B L L H LB /M L K , HKPKL MAMKL & % 42

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Copyright 2019 Red Hat K.K. $ operator-sdk add api --apiversion=cache.example.com/v1alpha1 --kind=Memcached (pkg/apis/cache/v1alpha1/memcached_types.g D A . C 2 type MemcachedSpec struct { // Size is the size of the memcached deployment Size int32 `json:"size"` } type MemcachedStatus struct { // Nodes are the names of the memcached pods // +listType=set Nodes []string `json:"nodes"` } 65

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Copyright 2019 Red Hat K.K. $ operator-sdk add controller --apiversion=cache.example.com/v1alpha1 --kind=Memcached err := c.Watch( &source.Kind{Type: &cachev1alpha1.Memcached{}}, &handler.EnqueueRequestForObject{}, ) (pkg/controller/memcached/memcached_controlle A C . I 3 err := c.Watch( &source.Kind{Type: &appsv1.Deployment{}}, &handler.EnqueueRequestForOwner{ IsController: true, OwnerType: &cachev1alpha1.Memcached{}}, ) https://github.com/operator-framework/operato sdk/blob/master/example/memcached- operator/memcached_controller.go.tmpl 67

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Copyright 2019 Red Hat K.K. func (r *ReconcileMemcached) Reconcile(request reconcile.Request) (reconcile.Result, error) { // Lookup the Memcached instance for this reconcile request memcached := &cachev1alpha1.Memcached{} err := r.client.Get(context.TODO(),request.NamespacedName, memcached) ... } )) . ()( ( 3 68

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Copyright 2019 Red Hat K.K. $ operator-sdk build quay.io/capsmalt/memcached-operator:v0.0.1 )4 - C D $ docker push quay.io/capsmalt/memcached-operator:v0.0.1 serviceAccountName: memcached-operator containers: - name: memcached-operator # Replace this with the built image name image: quay.io/capsmalt/memcached-operator:v0.0.1 command: - memcached-operator imagePullPolicy: Always (deploy/operator.yaml) $ kubectl create -f deploy/crds/cache.example.com_memcacheds_crd.yaml & ( .-. 4 - C D I A 69

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Copyright 2019 Red Hat K.K. $ kubectl create -f deploy/operator.yaml ( 4 ) BDA C $ kubectl create -f deploy/service_account.yaml $ kubectl create -f deploy/role.yaml $ kubectl create -f deploy/role_binding.yaml & C ( 4 ) . 4 C $ kubectl get deployment NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE memcached-operator 1 1 1 1 1m $ kubectl get pod NAME READY STATUS RESTARTS AGE memcached-operator-7d76948766-nrcp7 1/1 Running 0 1m 70

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Copyright 2019 Red Hat K.K. apiVersion: "cache.example.com/v1alpha1" kind: "Memcached" metadata: name: "example-memcached" spec: size: 3 (deploy/crds/cache.example.com_v1alpha1_Memcached_cr.yaml) $ kubectl apply -f deploy/crds/cache.example.com_v1alpha1_memcached_cr.yaml 71

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Copyright 2019 Red Hat K.K. D .)() 5 1 . C $ kubectl get deployment NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE memcached-operator 1 1 1 1 2m example-memcached 3 3 3 3 1m $ kubectl get pods NAME READY STATUS RESTARTS AGE example-memcached-5cc7c78d6-g6h6d 1/1 Running 0 2m example-memcached-5cc7c78d6-g5k7v 1/1 Running 0 2m example-memcached-5cc7c78d6-m7vn7 1/1 Running 0 2m memcached-operator-7gd6csgfd6-vvjqk 1/1 Running 0 3m 72

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Copyright 2019 Red Hat K.K. ( 53- 2 . ( ) apiVersion: "cache.example.com/v1alpha1" kind: "Memcached" metadata: name: "example-memcached" spec: size: 5 $ kubectl apply -f deploy/crds/cache.example.com_v1alpha1_memcached_cr.yaml $ kubectl get deployment NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE example-memcached 5 5 5 5 10m 73

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Copyright 2019 Red Hat K.K. $ operator-sdk new memcached-operator \ --api-version=cache.example.com/v1alpha1 \ --kind=Memcached --type=ansible Creates: ● Ansible Role ● Mapping File (watches.yaml) ● Custom Resource Definition ● Deploy manifest for the new Operator # watches.yaml --- - version: v1alpha1 group: cache.example.com kind: Memcached playbook: /path/to/playbook 74

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Copyright 2019 Red Hat K.K. ) ( -( C E C : A ) A DDD C E I S C E C : A ) Q N TM - ) ( -( c ye / A hl / A ye e g P : Aa / A ye Q / A ye Q s c / A ye Qu i V O / A w Poe / A ye t l ud g . p / A Q i r e ng g , C . : C . : s m . J Q LO M s m C E :A CA . C ( :A / A 97

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Copyright 2019 Red Hat K.K. Automated Dependency Resolution My Operator v1.1.2 require s requires Jaeger Operator jaeger.jaegertracing.io /v1 CockroachDB Operator cockroachdb.charts.helm.k8s.io/v1alpha 1 resolves to resolves to Operator Framework installed by installed by 99