K8s deployment
example:
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
labels:
app: nginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
In Kubernetes, a rollout is the process of deploying a new version of an application or service. There are two common rollout strategies: rolling update and recreate. A rolling update gradually replaces pods running the old version with new ones, while a recreate strategy deletes all the old pods and creates new ones.
Rollback is the process of undoing a rollout and reverting to a previous version of the application. These features help to minimize downtime and ensure a smooth deployment process.