参考文献: Kubernetesマイクロサービス開発の実践 (早川博 著)
kubectl explain replicaset
kubectl api-resources
cat <<-'EOF' > rs.yaml
apiVersion: apps/v1
kind: ReplicaSet
metadata:
name: replicaset01
labels:
app: hoge
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
tier: frontend
spec:
containers:
- name: nginx
image: nginx:1.23.4
ports:
- containerPort: 80
EOF
kubectl apply -f rs.yaml
kubectl get rs
kubectl get all
kubectl scale --replicas=5 replicasets replicaset01
kubectl get rs
kubectl get all
kubectl delete -f rs.yaml
