Running kubernetes in production might be hard this is what we have learned.

1. Running Kubernetes
Adam Hamsik
DevOps/Cloud Engineer

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Kubernetes deployment on AWS
TL;DR Summary
- Kubernetes deployment tools
- Kubernetes infrastructure components
- Pods, Services, Endpoints
- Workloads
•
- Demo

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1. Running Kubernetes version 1.9 on AWS
2. Deployed with Kops and Terraform
3. If possible we use managed services (RDS, Elasticache)
a.
4. Prometheus/Grafana used for monitoring
5. Elk stack for log gathering
Kubernetes deployment on AWS
Kubernetes @ Pixel

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Kubernetes deployment on AWS
Kubernetes deployment tools
Multiple available alternatives for kubernetes
deployment
1. Kops (AWS, GCE, digitalocean)
a.
2. Kube-up
a.
3. Kubespray
a.
4. Kubeadm

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Kubernetes deployment on AWS
Using Kops for Kubernetes Deployment
1. Cloud Architecture
a.
b.
2. Highly available deployment
a.
b.
3. Cluster Updates
a.
i.

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Kubernetes deployment on AWS
Kubernetes AWS architecture

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Kubernetes deployment on AWS
Kubernetes Components
1. Kubernetes master
a.
b.
i.
c.
i.
d.
2. Node
a.
b.
i.
c.
i.

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Kubernetes deployment on AWS
Kubernetes Components

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Kubernetes deployment on AWS
Kubernetes Components

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Addons
extend core Kubernetes functionality
1. External-dns
a.
2. Cluster-autoscaler
a.
3. Prometheus
a.
Kubernetes deployment on AWS
Kubernetes Addons

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1. Trust your health-checks
a.
2. Stateless applications
a.
b.
3. One process per container
a.
4. Scaling
a.
b.
Kubernetes deployment on AWS
Running applications on Kubernetes

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1. Use ingress controllers (traefik, nginx, haproxy, AWS ALB)
a.
b.
c.
2. Plan your updates native support for
a. Recreate
b. Rolling Update
c. Blue/Green,Canary,A/B needs to be scripted
3. Package your manifests with HELM
Kubernetes deployment on AWS
Running applications on Kubernetes vol. 2

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Kubernetes deployment on AWS
Application Pod with sidecar container

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1. Package manager for Kubernetes manifests
a.
2. Use templates to develop reusable charts
a. Sharing charts is simple
3. Supports rollback to previous application versions
a.
4. Use hooks to manage/orchestrate complicated scenarios
Kubernetes deployment on AWS
Kubernetes Helm Package manager

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1. Pods
a. group of one or more containers running on a same physical host
2. Services
a. A Kubernetes Service is an abstraction which defines a logical set of
Pods and a policy by which to access them
b. Use selectors/labels to select right pods
3. Deployments, Stateful sets, Daemon Sets
a.
Kubernetes deployment on AWS
Kubernetes Service objects

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Kubernetes deployment on AWS
Kubernetes application architecture

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Kubernetes deployment on AWS
Questions ?

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Kubernetes deployment on AWS
Thanks !
ahamsik@pixelfederation.com

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Encapsulation based CNI
1. Flannel
2. Weave Net
Routing based CNI
1. Project Calico
2. Kube-router
3. amazon-vpc-cni-k8s
Kubernetes deployment on AWS
Kubernetes networking

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Kubernetes deployment on AWS
Kubernetes networking flannel

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1. Routing based CNI
a.
b.
c.
d.
e.
Kubernetes deployment on AWS
Kubernetes networking calico