Kubernete Second Week

Kubernetes Second Week Mofi Rahman

@moficodes tiny.cc/k8s-second-week

@moficodes github.com/moficodes/k8s-second-week

Mofizur Rahman Senior Developer Advocate, Vonage Work on Client SDKs,
Collect Stickers, Write Go and JS code @moficodes

@moficodes Resource Quotas “Give me x amount of ram and
cpu in y increment”

@moficodes Example apiVersion: v1 kind: Pod metadata: name: high-priority spec:
containers: - name: high-priority image: ubuntu resources: requests: memory: "2Gi" cpu: "100m" limits: memory: "10Gi" cpu: "500m" priorityClassName: high

@moficodes Quality of Service Best Effort (not limit mentioned) Burstable
(x > y) Guranteed (x == y)

@moficodes Kubernetes Lifecycle Poststart Prestop Sigterm Sigkill

@moficodes Try to not use it.

@moficodes Scheduling Kubernetes is a scheduler at heart that gives
you apis to access resources

@moficodes Scheduling Affinity Nodeaffinity Podaffinity Taints Tolerations

@moficodes Descheduler Kubernetes can actually kick things out if needed
Except- Critical Pods (marked with annotations) Orphan Pods Daemonsets Pod with Storage

@moficodes Jobs Batch work

@moficodes Cron Jobs Timed batch works

@moficodes Daemonsets Per Node pod

@moficodes Init Container Runs before anything in your container

@moficodes Sidecar Runs beside the container

@moficodes Secrets K8S has it. It’s basically useless. 😢

@moficodes Configmaps Kubernetes way of setting env

Mofizur Rahman Senior Developer Advocate, Vonage Work on Client SDKs,
Collect Stickers, Write Go and JS code @moficodes

Kubernete Second Week

Kubernete Second Week

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Kubernetes Second Week Mofi Rahman

@moficodes tiny.cc/k8s-second-week

@moficodes github.com/moficodes/k8s-second-week

Mofizur Rahman Senior Developer Advocate, Vonage Work on Client SDKs,

@moficodes Resource Quotas “Give me x amount of ram and

@moficodes Example apiVersion: v1 kind: Pod metadata: name: high-priority spec:

@moficodes Quality of Service Best Effort (not limit mentioned) Burstable

@moficodes Kubernetes Lifecycle Poststart Prestop Sigterm Sigkill

@moficodes Try to not use it.

@moficodes Scheduling Kubernetes is a scheduler at heart that gives

@moficodes Scheduling Affinity Nodeaffinity Podaffinity Taints Tolerations

@moficodes Descheduler Kubernetes can actually kick things out if needed

@moficodes Jobs Batch work

@moficodes Cron Jobs Timed batch works

@moficodes Daemonsets Per Node pod

@moficodes Init Container Runs before anything in your container

@moficodes Sidecar Runs beside the container

@moficodes Secrets K8S has it. It’s basically useless. 😢

@moficodes Configmaps Kubernetes way of setting env

Mofizur Rahman Senior Developer Advocate, Vonage Work on Client SDKs,