How to resolve Kubernetes Deployment warning? - kubernetes

Question

$ kubectl version --short
Client Version: v1.20.2
Server Version: v1.19.6-eks-49a6c0
I have the following Deployment manifest
apiVersion: apps/v1
kind: Deployment
metadata:
name: stats-service
namespace: my-system
labels:
app: stats-service
spec:
selector:
matchLabels:
app: stats-service
template:
metadata:
labels:
app: stats-service
spec:
containers:
- name: stats-service
image: 0123456789.dkr.ecr.us-east-1.amazonaws.com/stats-service:3.12.1
resources:
requests:
memory: "1024m"
cpu: "512m"
limits:
memory: "2048m"
cpu: "1024m"
ports:
- name: http
containerPort: 5000
protocol: TCP
startupProbe:
httpGet:
path: /manage/health
port: 5000
failureThreshold: 30
periodSeconds: 10
livenessProbe:
httpGet:
path: /manage/health
port: 5000
failureThreshold: 3
periodSeconds: 10
readinessProbe:
httpGet:
path: /manage/health
port: 5000
failureThreshold: 6
periodSeconds: 10
env:
- name: SPRING_PROFILES_ACTIVE
value: test
- name: JAVA_OPTS
value: "my_java_opts"
When I apply it I get the following warning, and the Pod never gets created. What does it mean and how to resolve it? In my case, I'm running and EKS Fargate (only) cluster. Thanks!
$ kubectl describe pod stats-service-797784dfd5-tvh84
...
Warning FailedCreatePodSandBox 12s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create containerd task: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:319: getting the final child's pid from pipe caused \"read init-p: connection reset by peer\"": unknown
NOTES:
Seems like the warning is related to the spec.template.spec.containers.resources.limits block. If I remove that, the Pod gets created.
A lot of the solutions I read online say to reset Docker, which obviously can't apply to me.

Answer 1

You are using the wrong notations for your resources. As per Meaning of memory:
Limits and requests for memory are measured in bytes. You can express
memory as a plain integer or as a fixed-point number using one of
these suffixes: E, P, T, G, M, K. You can also use the power-of-two
equivalents: Ei, Pi, Ti, Gi, Mi, Ki.
If you want,
Requests:
1GB RAM
0.5 vCPU/Core
Limits:
2GB RAM
1 vCPU/Core
This should work:
resources:
requests:
memory: "1G"
cpu: "0.5"
limits:
memory: "2G"
cpu: "1"
The following is equivalent, but using different notations:
resources:
requests:
memory: "1024M"
cpu: "500m"
limits:
memory: "2048M"
cpu: "1000m"
Notice that the above example uses M for memory, not m.