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Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski

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VMware Tanzu

The document discusses Kubernetes as a platform for automated container deployment, scaling, and management, highlighting its roles in building platforms, reducing infrastructure code, and facilitating continuous integration and delivery. It explains various Kubernetes objects and operations like Pods, Deployments, and Services, alongside their interactions within a cloud environment. Additionally, it covers configurations like ConfigMaps and Secrets, providing a comprehensive overview of Kubernetes functionalities and management practices.

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Kubernetes is a platform for ______ Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Five Dollar Footlongs ™. Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Spring Cloud Kubernetes Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Building Platforms. Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Building Platforms. Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Building Platforms. Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Automated container deployment, scaling, and management. Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Automated operations. Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Automated operations. Cards Against Kubernetes devops. Cards Against Kubernetes Site ReliabilityEngineering. Cards Against Kubernetes @pczarkowski
“Every line of code is a piece of Technical Debt”
Kubernetes is a platform for ______ Cards Against Kubernetes Reducing Infrastructure Code Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Reducing Infrastructure Code Kards Against Humanity Reducing Toil Cards Against Kubernetes @pczarkowski
Kubernetes is a platform for ______ Cards Against Kubernetes Reducing Infrastructure Code Kards Against Humanity Reducing Toil Running Applications Cards Against Kubernetes @pczarkowski
Cover w/ Image Kubernetes is a platform for ■ Running Applications ■ Reducing [Infra] Code ■ Reducing Toil @pczarkowski
APP APP APP APP Kubernetes is a platform for ■ Continuous Integration ■ Continuous Delivery @pczarkowski
@pczarkowski
Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski
Pivotal Container Service
Embedded OS (Windows & Linux) NSX-T CPI (15 methods) v1 v2 v3 ... CVEs Product Updates Java | .NET | NodeJS Pivotal Application Service (PAS) Application Code & Frameworks Buildpacks | Spring Boot | Spring Cloud | Steeltoe Elastic | Packaged Software | Spark Pivotal Container Service (PKS) >cf push >kubectl run YOU build the containerWE build the container vSphere Azure & Azure StackGoogle CloudAWSOpenstack Pivotal Network “3Rs” Github Concourse Concourse Pivotal Services Marketplace Pivotal and Partner Products Continuous delivery Public Cloud Services Customer Managed Services OpenServiceBrokerAPI Repair — CVEs Repave Rotate — Credhub @pczarkowski
BOSH Reliable and consistent operational experience for any cloud. BOSH GCP Service Broker Harbor NSX-T Kubernetes K8s Cluster K8s Cluster K8s Cluster PKS Control Plane Use the PKS CLI and API to create, operate, and scale your clusters. VMware GCP Azure Openstack AWS PKSControlPlane GCP Service Broker Bring Google Cloud Platform services to your containers. Extend your workloads with machine learning, AI, and data services from Google. Built with open-source Kubernetes Constant compatibility with the latest stable release of Google Kubernetes Engine—no proprietary extensions. Harbor An enterprise-class container registry. Includes vulnerability scanning, identity management, and more. NSX-T Network management, security, and load balancing out-of-the-box with VMware NSX-T. Multi-cloud, multi-hypervisor. Enterprise-Grade Kubernetes @pczarkowski
Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski
App / Container Deployment, Services & Routing cf push App myapp.mydomain.net Pivotal Cloud Foundry Elastic Runtime Pivotal Container Service kubectl run ???? ????
Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski
cf push App myapp.mydomain.net Pivotal Cloud Foundry Elastic Runtime Pivotal Container Service docker build docker push kubectl run kubectl expose ???? ???? App / Container Deployment, Services & Routing
Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski
Kubernetes
You use Kubernetes API objects to describe your desired state.
Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski
Vs @pczarkowski
Vs @pczarkowski
API Users Storage Compute NetworkDatabase AccessArtifacts @pczarkowski
API Users Systems Admin Network Engineer SecurityDBA QA Storage Admin @pczarkowski
@pczarkowski
API Users Storage Compute NetworkDatabase AccessArtifacts @pczarkowski
API Server Users Control Plane Data Plane @pczarkowski
API Server Users Control Plane Data Plane etcd @pczarkowski
API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker @pczarkowski
API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker Scheduler @pczarkowski
API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker Scheduler Controller Manager @pczarkowski
Worker Master API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker Scheduler Controller Manager @pczarkowski
Master Master Master API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Worker Kubelet kube-proxy docker Scheduler Controller Manager Worker Kubelet kube-proxy docker Worker Kubelet kube-proxy docker @pczarkowski
Master Master Master API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Worker Kubelet kube-proxy docker Scheduler Controller Manager Worker Kubelet kube-proxy docker Worker Kubelet kube-proxy docker Flannel Flannel Flannel @pczarkowski
Desired State Actual State @pczarkowski
Unix Philosophy: Do one thing. Do it well. @pczarkowski
$ kubectl
Imperative $ kubectl run hello --image=paulczar/go-hello $ kubectl scale hello --replicas=3 $ kubectl create service clusterip hello --tcp=80:80 @pczarkowski
Declarative $ kubectl apply -f hello.yaml @pczarkowski
Declarative Vs Imperative @pczarkowski
manifests
apiVersion: v1 kind: Pod metadata: name: hello spec: containers: - image: paulczar/go-hello imagePullPolicy: Always name: hello @pczarkowski
resources
● Pods ● Services ● Volumes @pczarkowski
POD
one or more containers that share a network and storage
the minimum scalable unit of your application
MASTER Node 1 Node 2 Node 3 Node 4 hello kubelet kubelet kubelet kubelet Scheduler Pod Name: hello Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 hello kubelet kubelet kubelet kubelet Scheduler hello Pod Name: hello Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 hello kubelet kubelet kubelet kubelet Scheduler Pod Name: hello Image: hello1 @pczarkowski
Replica Set
MASTER Node 1 Node 2 Node 3 Node 4 hello-a kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 3 hello-ghello-s Pod Name: hello-a Image: hello1 Pod Name: hello-b Image: hello1 Pod Name: hello-c Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 hello-a kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 3 hello-ghello-s hello-d Pod Name: hello-a Image: hello1 Pod Name: hello-b Image: hello1 Pod Name: hello-d Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 hello-a kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 5 hello-ghello-s hello-d hello-t hello-z Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 0 @pczarkowski
Deployment
MASTER Node 1 Node 2 Node 3 Node 4 hello-A-c kubelet kubelet kubelet kubelet Scheduler Controller Manager Deployment Name: hello Image: hello1 Size: 3 hello-A-ghello-A-s Replica Set Name: hello-A Image: hello1 Size: 3 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 hello-A-c kubelet kubelet kubelet kubelet Scheduler Controller Manager Deployment Name: hello Image: hello2 Size: 3 hello-A-ghello-A-s Replica Set Name: hello-A Image: hello1 Size: 3 Replica Set Name: hello-B Image: hello2 Size: 3 hello-B-g hello-B-r hello-B-c @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 kubelet kubelet kubelet kubelet Scheduler Controller Manager Deployment Name: hello Image: hello2 Size: 3 Replica Set Name: hello-A Image: hello1 Size: 0 Replica Set Name: hello-B Image: hello2 Size: 3 hello-B-g hello-B-r hello-B-c @pczarkowski
StatefulSet
MASTER Node 1 Node 2 Node 3 Node 4 hello-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: db Image: hello1 Size: 3 Pod Name: hello-1 Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 hello-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: hello Image: hello1 Size: 3 hello-2 Pod Name: hello-1 Image: hello1 Pod Name: hello-2 Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 hello-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: hello Image: hello1 Size: 3 hello-3hello-2 Pod Name: hello-1 Image: hello1 Pod Name: hello-2 Image: hello1 Pod Name: hello-3 Image: hello1 @pczarkowski
MASTER Node 1 Node 2 Node 3 Node 4 db-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: db Image: cassandra Size: 3 db-3db-2 Pod Name: hello-a Image: Pod Name: hello-b Image: Pod Name: db-1 Image: ... vol vol vol Pod Name: hello-a Image: Pod Name: hello-b Image: PVC Name: db-1 Image: ... @pczarkowski
$ kubectl
$ kubectl run hello --image=paulczar/go-hello @pczarkowski
● kubectl run created a deployment “deployments.apps/hello” NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/hello 1 1 1 1 1m ● The deployment created a replicaset “replicaset.apps/hello-64f6bf9dd4” NAME DESIRED CURRENT READY AGE replicaset.apps/hello-64f6bf9dd4 1 1 1 1m ● Which created a pod “pod/hello-64f6bf9dd4-tq5dq” NAME READY STATUS RESTARTS AGE pod/hello-64f6bf9dd4-tq5dq 1/1 Running 0 2s @pczarkowski
$ kubectl scale --replicas=3 deployment/hello @pczarkowski
$ kubectl scale --replicas=3 deployment/hello deployment.extensions/hello scaled $ kubectl get all NAME READY STATUS RESTARTS AGE pod/hello-64f6bf9dd4-2bndq 1/1 Running 0 15m pod/hello-64f6bf9dd4-4kq9l 0/1 ContainerCreating 0 2s pod/hello-64f6bf9dd4-8lkcs 1/1 Running 0 5s NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/hello 3 3 2 3 16m NAME DESIRED CURRENT READY AGE replicaset.apps/hello-64f6bf9dd4 3 3 2 16m @pczarkowski
$ kubectl edit deployment hello ... spec: containers: - env: - name: MESSAGE value: HELLO I LOVE YOU!!!! image: paulczar/go-hello imagePullPolicy: Always name: hello @pczarkowski
$ kubectl get all NAME READY STATUS RESTARTS AGE pod/hello-5c75b546c7-4lwnn 1/1 Running 0 1m pod/hello-5c75b546c7-bwxxq 1/1 Running 0 1m pod/hello-5c75b546c7-sl2pg 1/1 Running 0 1m NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/hello 3 3 3 3 23m NAME DESIRED CURRENT READY AGE replicaset.apps/hello-5c75b546c7 3 3 3 1m replicaset.apps/hello-64f6bf9dd4 0 0 0 23m @pczarkowski
$ kubectl port-forward deployment/hello 8080 Forwarding from 127.0.0.1:8080 -> 8080 $ curl localhost:8080 <html><head><title>HELLO I LOVE YOU!!!!</title></head><body>HELLO I LOVE YOU!!!!!</body></html> @pczarkowski
Service
$ kubectl expose deployment hello --type=LoadBalancer --port 80 --target-port 8080 @pczarkowski
kubectl expose deployment hello ● creates a service with a ClusterIP that acts as an internal loadbalancer to all pods in the “hello” deployment --type=LoadBalancer ● Creates a NodePort ● Configures a LoadBalancer to access the pods via the NodePort $ kubectl get services NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE hello LoadBalancer 10.39.248.123 35.184.17.129 80:30468/TCP 5m $ curl 35.184.17.129 <html><head><title>HELLO I LOVE YOU!!!!</title></head><body>HELLO I LOVE YOU!!!!!</body></html> @pczarkowski
Service track Pods based on metadata and provides connectivity and service discovery (DNS, Env variables) for them. Type ClusterIP (default) exposes service on a cluster-internal IP. Container Container Pod app=bacon Container Container Pod app=bacon Service app=bacon 10.3.55.7 @pczarkowski
Service track Pods based on metadata and provides connectivity and service discovery (DNS, Env variables) for them. Type NodePort extends ClusterIP to expose services on each node’s IP via a static port. Container Container Pod app=bacon Container Container Pod app=bacon Service app=bacon 10.3.55.7 192.168.0.5:4530 K8s Worker K8s Worker 192.168.0.6:4530 @pczarkowski
Service track Pods based on metadata and provides connectivity and service discovery (DNS, Env variables) for them. Type LoadBalancer extends NodePort to configure a cloud provider’s load balancer using the cloud-controller-manager. Container Container Pod app=bacon Container Container Pod app=bacon Service app=bacon 10.3.55.7 192.168.0.5:4530 K8s Worker K8s Worker 192.168.0.6:4530 Load Balancer 33.6.5.22:80 @pczarkowski
Ingress a controller that manages an external entity to provide load balancing, SSL termination and name-based virtual hosting to services based on a set of rules. Ingress Service app=bacon https://example.com Service app=eggs /bacon /eggs @pczarkowski
Volume
Container Container Pod Volume Is [effectively] a Directory, possibly with data in it, available to all containers in a Pod. Usually Shares lifecycle of a Pod (Created when Pod is created, destroyed when Pod is destroyed). Persistent Volumes outlive Pods. Can be mounted from local disk, or from a network storage device such as a EBS volume, iscsi, NFS, etc. @pczarkowski
Config Map / Secret
$ kubectl create configmap hello --from-file=index.html @pczarkowski
kubectl create configmap hello --from-file=index.html ● creates a configmap called “hello” containing the contents index.html $ kubectl get configmap hello -o yaml apiVersion: v1 kind: ConfigMap metadata: name: hello data: index.html: "<html>n<head>nt<title>Hello to my friends</title>n</head>n<body>ntHello to my friendsn</body>n</html>nn" @pczarkowski
kubectl create secret generic hello --from-file=index.html ● creates a secret called “hello” containing a base64 hash of contents index.html $ kubectl get secret hello -o yaml apiVersion: v1 kind: Secret metadata: name: hello data: index.html: PGh0bWw+CjxoZWFkPgoJPHRpdGxlPkhlbGxvIHRvIG15IGZyaWVuZHM8L3RpdGxlPgo8L2hlYWQ+Cjxib2R5 PgoJSGVsbG8gdG8gbXkgZnJpZW5kcwo8L2JvZHk+CjwvaHRtbD4KCg== @pczarkowski
Provides key-value pairs to be injected into a pod much like user-data is injected into a Virtual Machine in the cloud. Allows you to do last minute configuration of applications running on Kubernetes such as setting a database host, or a admin password. ConfigMaps store values as strings, Secrets store them as byte arrays (serialized as base64 encoded strings). Secrets are [currently] not encrypted by default. This is likely to change. Can be injected as files in a Volume, or as Environment Variables. ConfigMaps/Secrets (user-data) @pczarkowski
Helm
Helm is the best way to find, share, and use software built for Kubernetes @pczarkowski
custom load balancer Chart.yaml Values.yaml templates/ ci services db
Discover & launch great Kubernetes-ready apps Search charts 231 charts ready to deploy Wordpress, Jenkins, Kubeless... Secure | https://hub.kubeapps.com @pczarkowski
apiVersion: v1 kind: ConfigMap metadata: name: {{ .Chart.name }}-cm data: db: {{ .Value.db }} apiVersion: apps/v1beta1 kind: Deployment metadata: name: {{ .Chart.name }}-app labels: app: {{ .Chart.name }} ... ... spec: containers: - image: paulczar/hello name: hello volumeMounts: - name: config mountPath: /etc/hello volumes: - name: config configMap: name: {{ .Chart.name }}-cm apiVersion: v1 kind: Service metadata: name: {{ .Chart.name }}-svc labels: app: {{ .Chart.name }}-world spec: ports: - port: {{ .Value.port }} protocol: TCP targetPort: 8080 selector: app: {{ .Chart.name }}-world type: NodePort @pczarkowski
$ helm install --name staging . --set db=’user:pass@staging.mysql/dbname’ $ helm install --name production . --set db=’user:pass@production.mysql/dbname’ @pczarkowski
Spinnaker
https://medium.com/netflix-techblog/announcing-ribbon-tying-the-netflix-mid -tier-services-together-a89346910a62
https://giphy.com/gifs/frustrated-keyboard-g8GfH3i5F0hby @pczarkowski
https://unsplash.com/photos/WHWYBmtn3_0 @pczarkowski
+ @pczarkowski
APP APP APP APP @pczarkowski
Cluster Management ● Server Group ● Cluster ● Applications ● Load Balancer ● Firewall Pipelines ● Pipeline ● Stage ● Deployment Strategies @pczarkowski
Multi-Cloud Inventory ● Server Group ● Cluster ● Applications ● Load Balancer ● Firewall Actions and Reactions ● Pipeline ● Stage ● Deployment Strategies @pczarkowski
@pczarkowski
Cluster Management ● Server Group ● Cluster ● Applications ● Load Balancer ● Firewall Deployment Management ● Pipeline ● Stage ● Deployment Strategies Deployment Strategies
Spinnaker Cloud API App App App @pczarkowski
@pczarkowski
Halyard https://en.wikipedia.org/wiki/Halyard
@pczarkowski
Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski
Transforming How The World Builds Software © Copyright 2018 Pivotal Software, Inc. All rights Reserved.@pczarkowski

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Using Spinnaker to Create a Development Workflow on Kubernetes - Paul Czarkowski

  • 1. Kubernetes is a platform for ______ Cards Against Kubernetes @pczarkowski
  • 2. Kubernetes is a platform for ______ Cards Against Kubernetes @pczarkowski
  • 3. Kubernetes is a platform for ______ Cards Against Kubernetes Five Dollar Footlongs ™. Cards Against Kubernetes @pczarkowski
  • 4. Kubernetes is a platform for ______ Cards Against Kubernetes Cards Against Kubernetes @pczarkowski
  • 5. Kubernetes is a platform for ______ Cards Against Kubernetes Spring Cloud Kubernetes Cards Against Kubernetes @pczarkowski
  • 6. Kubernetes is a platform for ______ Cards Against Kubernetes Building Platforms. Cards Against Kubernetes @pczarkowski
  • 7. Kubernetes is a platform for ______ Cards Against Kubernetes Building Platforms. Cards Against Kubernetes @pczarkowski
  • 8. Kubernetes is a platform for ______ Cards Against Kubernetes Building Platforms. Cards Against Kubernetes @pczarkowski
  • 9. Kubernetes is a platform for ______ Cards Against Kubernetes Automated container deployment, scaling, and management. Cards Against Kubernetes @pczarkowski
  • 10. Kubernetes is a platform for ______ Cards Against Kubernetes Automated operations. Cards Against Kubernetes @pczarkowski
  • 11. Kubernetes is a platform for ______ Cards Against Kubernetes Automated operations. Cards Against Kubernetes devops. Cards Against Kubernetes Site ReliabilityEngineering. Cards Against Kubernetes @pczarkowski
  • 12. “Every line of code is a piece of Technical Debt”
  • 13. Kubernetes is a platform for ______ Cards Against Kubernetes Reducing Infrastructure Code Cards Against Kubernetes @pczarkowski
  • 14. Kubernetes is a platform for ______ Cards Against Kubernetes Reducing Infrastructure Code Kards Against Humanity Reducing Toil Cards Against Kubernetes @pczarkowski
  • 15. Kubernetes is a platform for ______ Cards Against Kubernetes Reducing Infrastructure Code Kards Against Humanity Reducing Toil Running Applications Cards Against Kubernetes @pczarkowski
  • 16. Cover w/ Image Kubernetes is a platform for ■ Running Applications ■ Reducing [Infra] Code ■ Reducing Toil @pczarkowski
  • 17. APP APP APP APP Kubernetes is a platform for ■ Continuous Integration ■ Continuous Delivery @pczarkowski
  • 21. Embedded OS (Windows & Linux) NSX-T CPI (15 methods) v1 v2 v3 ... CVEs Product Updates Java | .NET | NodeJS Pivotal Application Service (PAS) Application Code & Frameworks Buildpacks | Spring Boot | Spring Cloud | Steeltoe Elastic | Packaged Software | Spark Pivotal Container Service (PKS) >cf push >kubectl run YOU build the containerWE build the container vSphere Azure & Azure StackGoogle CloudAWSOpenstack Pivotal Network “3Rs” Github Concourse Concourse Pivotal Services Marketplace Pivotal and Partner Products Continuous delivery Public Cloud Services Customer Managed Services OpenServiceBrokerAPI Repair — CVEs Repave Rotate — Credhub @pczarkowski
  • 22. BOSH Reliable and consistent operational experience for any cloud. BOSH GCP Service Broker Harbor NSX-T Kubernetes K8s Cluster K8s Cluster K8s Cluster PKS Control Plane Use the PKS CLI and API to create, operate, and scale your clusters. VMware GCP Azure Openstack AWS PKSControlPlane GCP Service Broker Bring Google Cloud Platform services to your containers. Extend your workloads with machine learning, AI, and data services from Google. Built with open-source Kubernetes Constant compatibility with the latest stable release of Google Kubernetes Engine—no proprietary extensions. Harbor An enterprise-class container registry. Includes vulnerability scanning, identity management, and more. NSX-T Network management, security, and load balancing out-of-the-box with VMware NSX-T. Multi-cloud, multi-hypervisor. Enterprise-Grade Kubernetes @pczarkowski
  • 24. App / Container Deployment, Services & Routing cf push App myapp.mydomain.net Pivotal Cloud Foundry Elastic Runtime Pivotal Container Service kubectl run ???? ????
  • 26. cf push App myapp.mydomain.net Pivotal Cloud Foundry Elastic Runtime Pivotal Container Service docker build docker push kubectl run kubectl expose ???? ???? App / Container Deployment, Services & Routing
  • 29. You use Kubernetes API objects to describe your desired state.
  • 33. API Users Storage Compute NetworkDatabase AccessArtifacts @pczarkowski
  • 36. API Users Storage Compute NetworkDatabase AccessArtifacts @pczarkowski
  • 38. API Server Users Control Plane Data Plane etcd @pczarkowski
  • 39. API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker @pczarkowski
  • 40. API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker Scheduler @pczarkowski
  • 41. API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker Scheduler Controller Manager @pczarkowski
  • 42. Worker Master API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Kubelet kube-proxy docker Scheduler Controller Manager @pczarkowski
  • 43. Master Master Master API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Worker Kubelet kube-proxy docker Scheduler Controller Manager Worker Kubelet kube-proxy docker Worker Kubelet kube-proxy docker @pczarkowski
  • 44. Master Master Master API Server Users Control Plane Data Plane etcd Cloud Ctrl Manager Worker Kubelet kube-proxy docker Scheduler Controller Manager Worker Kubelet kube-proxy docker Worker Kubelet kube-proxy docker Flannel Flannel Flannel @pczarkowski
  • 46. Unix Philosophy: Do one thing. Do it well. @pczarkowski
  • 48. Imperative $ kubectl run hello --image=paulczar/go-hello $ kubectl scale hello --replicas=3 $ kubectl create service clusterip hello --tcp=80:80 @pczarkowski
  • 49. Declarative $ kubectl apply -f hello.yaml @pczarkowski
  • 52. apiVersion: v1 kind: Pod metadata: name: hello spec: containers: - image: paulczar/go-hello imagePullPolicy: Always name: hello @pczarkowski
  • 54. ● Pods ● Services ● Volumes @pczarkowski
  • 55. POD
  • 56. one or more containers that share a network and storage
  • 57. the minimum scalable unit of your application
  • 58. MASTER Node 1 Node 2 Node 3 Node 4 hello kubelet kubelet kubelet kubelet Scheduler Pod Name: hello Image: hello1 @pczarkowski
  • 59. MASTER Node 1 Node 2 Node 3 Node 4 hello kubelet kubelet kubelet kubelet Scheduler hello Pod Name: hello Image: hello1 @pczarkowski
  • 60. MASTER Node 1 Node 2 Node 3 Node 4 hello kubelet kubelet kubelet kubelet Scheduler Pod Name: hello Image: hello1 @pczarkowski
  • 62. MASTER Node 1 Node 2 Node 3 Node 4 hello-a kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 3 hello-ghello-s Pod Name: hello-a Image: hello1 Pod Name: hello-b Image: hello1 Pod Name: hello-c Image: hello1 @pczarkowski
  • 63. MASTER Node 1 Node 2 Node 3 Node 4 hello-a kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 3 hello-ghello-s hello-d Pod Name: hello-a Image: hello1 Pod Name: hello-b Image: hello1 Pod Name: hello-d Image: hello1 @pczarkowski
  • 64. MASTER Node 1 Node 2 Node 3 Node 4 hello-a kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 5 hello-ghello-s hello-d hello-t hello-z Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 Pod Name: hello-a Image: hello1 @pczarkowski
  • 65. MASTER Node 1 Node 2 Node 3 Node 4 kubelet kubelet kubelet kubelet Scheduler Controller Manager Replica Set Name: hello Image: hello1 Size: 0 @pczarkowski
  • 67. MASTER Node 1 Node 2 Node 3 Node 4 hello-A-c kubelet kubelet kubelet kubelet Scheduler Controller Manager Deployment Name: hello Image: hello1 Size: 3 hello-A-ghello-A-s Replica Set Name: hello-A Image: hello1 Size: 3 @pczarkowski
  • 68. MASTER Node 1 Node 2 Node 3 Node 4 hello-A-c kubelet kubelet kubelet kubelet Scheduler Controller Manager Deployment Name: hello Image: hello2 Size: 3 hello-A-ghello-A-s Replica Set Name: hello-A Image: hello1 Size: 3 Replica Set Name: hello-B Image: hello2 Size: 3 hello-B-g hello-B-r hello-B-c @pczarkowski
  • 69. MASTER Node 1 Node 2 Node 3 Node 4 kubelet kubelet kubelet kubelet Scheduler Controller Manager Deployment Name: hello Image: hello2 Size: 3 Replica Set Name: hello-A Image: hello1 Size: 0 Replica Set Name: hello-B Image: hello2 Size: 3 hello-B-g hello-B-r hello-B-c @pczarkowski
  • 71. MASTER Node 1 Node 2 Node 3 Node 4 hello-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: db Image: hello1 Size: 3 Pod Name: hello-1 Image: hello1 @pczarkowski
  • 72. MASTER Node 1 Node 2 Node 3 Node 4 hello-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: hello Image: hello1 Size: 3 hello-2 Pod Name: hello-1 Image: hello1 Pod Name: hello-2 Image: hello1 @pczarkowski
  • 73. MASTER Node 1 Node 2 Node 3 Node 4 hello-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: hello Image: hello1 Size: 3 hello-3hello-2 Pod Name: hello-1 Image: hello1 Pod Name: hello-2 Image: hello1 Pod Name: hello-3 Image: hello1 @pczarkowski
  • 74. MASTER Node 1 Node 2 Node 3 Node 4 db-1 kubelet kubelet kubelet kubelet Scheduler Controller Manager StatefulSet Name: db Image: cassandra Size: 3 db-3db-2 Pod Name: hello-a Image: Pod Name: hello-b Image: Pod Name: db-1 Image: ... vol vol vol Pod Name: hello-a Image: Pod Name: hello-b Image: PVC Name: db-1 Image: ... @pczarkowski
  • 76. $ kubectl run hello --image=paulczar/go-hello @pczarkowski
  • 77. ● kubectl run created a deployment “deployments.apps/hello” NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/hello 1 1 1 1 1m ● The deployment created a replicaset “replicaset.apps/hello-64f6bf9dd4” NAME DESIRED CURRENT READY AGE replicaset.apps/hello-64f6bf9dd4 1 1 1 1m ● Which created a pod “pod/hello-64f6bf9dd4-tq5dq” NAME READY STATUS RESTARTS AGE pod/hello-64f6bf9dd4-tq5dq 1/1 Running 0 2s @pczarkowski
  • 78. $ kubectl scale --replicas=3 deployment/hello @pczarkowski
  • 79. $ kubectl scale --replicas=3 deployment/hello deployment.extensions/hello scaled $ kubectl get all NAME READY STATUS RESTARTS AGE pod/hello-64f6bf9dd4-2bndq 1/1 Running 0 15m pod/hello-64f6bf9dd4-4kq9l 0/1 ContainerCreating 0 2s pod/hello-64f6bf9dd4-8lkcs 1/1 Running 0 5s NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/hello 3 3 2 3 16m NAME DESIRED CURRENT READY AGE replicaset.apps/hello-64f6bf9dd4 3 3 2 16m @pczarkowski
  • 80. $ kubectl edit deployment hello ... spec: containers: - env: - name: MESSAGE value: HELLO I LOVE YOU!!!! image: paulczar/go-hello imagePullPolicy: Always name: hello @pczarkowski
  • 81. $ kubectl get all NAME READY STATUS RESTARTS AGE pod/hello-5c75b546c7-4lwnn 1/1 Running 0 1m pod/hello-5c75b546c7-bwxxq 1/1 Running 0 1m pod/hello-5c75b546c7-sl2pg 1/1 Running 0 1m NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/hello 3 3 3 3 23m NAME DESIRED CURRENT READY AGE replicaset.apps/hello-5c75b546c7 3 3 3 1m replicaset.apps/hello-64f6bf9dd4 0 0 0 23m @pczarkowski
  • 82. $ kubectl port-forward deployment/hello 8080 Forwarding from 127.0.0.1:8080 -> 8080 $ curl localhost:8080 <html><head><title>HELLO I LOVE YOU!!!!</title></head><body>HELLO I LOVE YOU!!!!!</body></html> @pczarkowski
  • 84. $ kubectl expose deployment hello --type=LoadBalancer --port 80 --target-port 8080 @pczarkowski
  • 85. kubectl expose deployment hello ● creates a service with a ClusterIP that acts as an internal loadbalancer to all pods in the “hello” deployment --type=LoadBalancer ● Creates a NodePort ● Configures a LoadBalancer to access the pods via the NodePort $ kubectl get services NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE hello LoadBalancer 10.39.248.123 35.184.17.129 80:30468/TCP 5m $ curl 35.184.17.129 <html><head><title>HELLO I LOVE YOU!!!!</title></head><body>HELLO I LOVE YOU!!!!!</body></html> @pczarkowski
  • 86. Service track Pods based on metadata and provides connectivity and service discovery (DNS, Env variables) for them. Type ClusterIP (default) exposes service on a cluster-internal IP. Container Container Pod app=bacon Container Container Pod app=bacon Service app=bacon 10.3.55.7 @pczarkowski
  • 87. Service track Pods based on metadata and provides connectivity and service discovery (DNS, Env variables) for them. Type NodePort extends ClusterIP to expose services on each node’s IP via a static port. Container Container Pod app=bacon Container Container Pod app=bacon Service app=bacon 10.3.55.7 192.168.0.5:4530 K8s Worker K8s Worker 192.168.0.6:4530 @pczarkowski
  • 88. Service track Pods based on metadata and provides connectivity and service discovery (DNS, Env variables) for them. Type LoadBalancer extends NodePort to configure a cloud provider’s load balancer using the cloud-controller-manager. Container Container Pod app=bacon Container Container Pod app=bacon Service app=bacon 10.3.55.7 192.168.0.5:4530 K8s Worker K8s Worker 192.168.0.6:4530 Load Balancer 33.6.5.22:80 @pczarkowski
  • 89. Ingress a controller that manages an external entity to provide load balancing, SSL termination and name-based virtual hosting to services based on a set of rules. Ingress Service app=bacon https://example.com Service app=eggs /bacon /eggs @pczarkowski
  • 91. Container Container Pod Volume Is [effectively] a Directory, possibly with data in it, available to all containers in a Pod. Usually Shares lifecycle of a Pod (Created when Pod is created, destroyed when Pod is destroyed). Persistent Volumes outlive Pods. Can be mounted from local disk, or from a network storage device such as a EBS volume, iscsi, NFS, etc. @pczarkowski
  • 92. Config Map / Secret
  • 93. $ kubectl create configmap hello --from-file=index.html @pczarkowski
  • 94. kubectl create configmap hello --from-file=index.html ● creates a configmap called “hello” containing the contents index.html $ kubectl get configmap hello -o yaml apiVersion: v1 kind: ConfigMap metadata: name: hello data: index.html: "<html>n<head>nt<title>Hello to my friends</title>n</head>n<body>ntHello to my friendsn</body>n</html>nn" @pczarkowski
  • 95. kubectl create secret generic hello --from-file=index.html ● creates a secret called “hello” containing a base64 hash of contents index.html $ kubectl get secret hello -o yaml apiVersion: v1 kind: Secret metadata: name: hello data: index.html: PGh0bWw+CjxoZWFkPgoJPHRpdGxlPkhlbGxvIHRvIG15IGZyaWVuZHM8L3RpdGxlPgo8L2hlYWQ+Cjxib2R5 PgoJSGVsbG8gdG8gbXkgZnJpZW5kcwo8L2JvZHk+CjwvaHRtbD4KCg== @pczarkowski
  • 96. Provides key-value pairs to be injected into a pod much like user-data is injected into a Virtual Machine in the cloud. Allows you to do last minute configuration of applications running on Kubernetes such as setting a database host, or a admin password. ConfigMaps store values as strings, Secrets store them as byte arrays (serialized as base64 encoded strings). Secrets are [currently] not encrypted by default. This is likely to change. Can be injected as files in a Volume, or as Environment Variables. ConfigMaps/Secrets (user-data) @pczarkowski
  • 97. Helm
  • 98. Helm is the best way to find, share, and use software built for Kubernetes @pczarkowski
  • 100. Discover & launch great Kubernetes-ready apps Search charts 231 charts ready to deploy Wordpress, Jenkins, Kubeless... Secure | https://hub.kubeapps.com @pczarkowski
  • 101. apiVersion: v1 kind: ConfigMap metadata: name: {{ .Chart.name }}-cm data: db: {{ .Value.db }} apiVersion: apps/v1beta1 kind: Deployment metadata: name: {{ .Chart.name }}-app labels: app: {{ .Chart.name }} ... ... spec: containers: - image: paulczar/hello name: hello volumeMounts: - name: config mountPath: /etc/hello volumes: - name: config configMap: name: {{ .Chart.name }}-cm apiVersion: v1 kind: Service metadata: name: {{ .Chart.name }}-svc labels: app: {{ .Chart.name }}-world spec: ports: - port: {{ .Value.port }} protocol: TCP targetPort: 8080 selector: app: {{ .Chart.name }}-world type: NodePort @pczarkowski
  • 102. $ helm install --name staging . --set db=’user:pass@staging.mysql/dbname’ $ helm install --name production . --set db=’user:pass@production.mysql/dbname’ @pczarkowski
  • 109. Cluster Management ● Server Group ● Cluster ● Applications ● Load Balancer ● Firewall Pipelines ● Pipeline ● Stage ● Deployment Strategies @pczarkowski
  • 110. Multi-Cloud Inventory ● Server Group ● Cluster ● Applications ● Load Balancer ● Firewall Actions and Reactions ● Pipeline ● Stage ● Deployment Strategies @pczarkowski
  • 112. Cluster Management ● Server Group ● Cluster ● Applications ● Load Balancer ● Firewall Deployment Management ● Pipeline ● Stage ● Deployment Strategies Deployment Strategies
  • 118. Transforming How The World Builds Software © Copyright 2018 Pivotal Software, Inc. All rights Reserved.@pczarkowski