You must know
POD is a unit of service.
If kubernetes needs to scale out, it replicates POD unit.
It’s not to scale out container in a POD.
Manage Containers with Docker
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| # app1
docker run python-app
# app2
docker run python-app
# app3
docker run python-app
# app4
docker run python-app
docker run helper -link app1
docker run helper -link app2
docker run helper -link app3
docker run helper -link app4
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Manage Containers with POD
pod-definition.yml
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| apiVersion: v1
kind: Pod
metadata:
name: myapp-pod
labels:
app: myapp
type: front-end
spec:
containers:
- name: nginx-continer
image: nginx
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Create a POD with YAML file
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| kubectl create -f pod-definition.yml
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Create a POD with Command
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| kubectl run myapp-pod --image nginx
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Show PODs List
Show POD Detail
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| kubectl describe pod myapp-pod
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CozyFex