K8s Applications mit MicroK8S auf Raspberry PI. Alfred Sabitzer
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Название: K8s Applications mit MicroK8S auf Raspberry PI
Автор: Alfred Sabitzer
Издательство: Bookwire
Жанр: Математика
isbn: 9783742770134
isbn:
replicas: 1
template:
metadata:
labels:
app: hello-world
annotations:
sidecar.istio.io/inject: "false"
spec:
containers:
- name: hello-world
image: docker.registry:5000/hello-world:20211003
# resource limits
resources:
requests:
memory: "24Mi"
cpu: "500m" # half vcpu
limits:
memory: "64Mi"
cpu: "1000m" # one vcpu
env:
# currently no env vars used for this container
- name: FOO
value: bar
# check for lifetime liveness, restarts if dead
livenessProbe:
exec:
command:
- /hello-world
initialDelaySeconds: 5
periodSeconds: 10
# check for initial readyness
readinessProbe:
exec:
command:
- /hello-world
initialDelaySeconds: 3
periodSeconds: 3
restartPolicy: Always
dnsPolicy: ClusterFirst
---
apiVersion: v1
kind: Service
metadata:
name: hello-world-service
#namespace: default
labels:
app: hello-world
spec:
ports:
# port=available to other containers
- port: 1234
name: hello
# targetPort=exposed from inside container
targetPort: 1234
protocol: TCP
selector:
app: hello-world
---
alfred@pc1:/opt/cluster/go$
Nun installieren wir den Service.
alfred@pc1:/opt/cluster/go$ kubectl apply -f hello-world.yaml
deployment.apps/hello-world created
service/hello-world-service created
alfred@pc1:/opt/cluster/go$
Wir kontrollieren ob der Service richtig gestartet wird.
alfred@pc1:/opt/cluster/go$ kubectl describe -n default pod hello-world-6bb7844865-4j5bw
Name: hello-world-6bb7844865-4j5bw
Namespace: default
Priority: 0
Node: pc5/192.168.0.205
Start Time: Sun, 03 Oct 2021 20:56:03 +0200
Labels: app=hello-world
pod-template-hash=6bb7844865
Annotations: cni.projectcalico.org/podIP: 10.1.80.118/32
cni.projectcalico.org/podIPs: 10.1.80.118/32
sidecar.istio.io/inject: false
Status: Running
IP: 10.1.80.118
IPs:
IP: 10.1.80.118
Controlled By: ReplicaSet/hello-world-6bb7844865
Containers:
hello-world:
Container ID: containerd://e9d5a90c4ac98c57f9f27bdbe88b0bd5535d4e297ecbb103118a963d554615a9
Image: docker.registry:5000/hello-world:20211003
Image ID: docker.registry:5000/hello-world@sha256:1bb9b5564a34689396c097bb410a837d5e074b61caff822cb43921f425b09a50
Port: <none>
Host Port: <none>
State: Waiting
Reason: CrashLoopBackOff
Last State: Terminated
Reason: Completed
Exit Code: 0
Started: Sun, 03 Oct 2021 20:56:08 +0200
Finished: Sun, 03 Oct 2021 20:56:08 +0200
Ready: False
Restart Count: 1
Limits:
cpu: 1
memory: 64Mi
Requests:
cpu: 500m
memory: 24Mi