amazon-eks-ami
calico
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amazon-eks-ami | calico | |
---|---|---|
19 | 17 | |
2,345 | 5,484 | |
1.6% | 2.9% | |
9.2 | 9.9 | |
7 days ago | 4 days ago | |
Shell | Go | |
MIT No Attribution | Apache License 2.0 |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
amazon-eks-ami
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[Request for opinion] : CPU limits in the K8s world
Careful assuming system reserved will be present. Last I checked, AWS EKS does not have system reserved resources for the kubelet by default and as a result, pods can starve those for resources (e.g., https://github.com/awslabs/amazon-eks-ami/issues/79). This is of course more important for memory, but could impact CPU as well.
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Compile Linux Kernel 6.x on AL2? 😎
For example, this is available for AL2: https://github.com/awslabs/amazon-eks-ami
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Hands-on lab for studying the EKS, which scenarios I should learn?
I found this document that lists the pod limits per node size. I suspect you will want to consider larger worker nodes or you will very quickly be unable to schedule additional workloads.
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k3s on AWS,does it make sense?
source
- EKS Worker Nodes on RHEL 8?
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Five Rookie Mistakes with Kubernetes on AWS. Which were yours?
Issue 1 is a known issue due to memory reservation being to low, see e.g. https://github.com/awslabs/amazon-eks-ami/issues/1145
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EKS: Shoudnt nodes autoscaling group take pods limit into consideration?
No, the new node is added if there are not enough resiurces to start a new pod. So if you have many pods with small resource usage you can hit the pod per node limit, on eks you have a max number of pods depending on the instance type - https://github.com/awslabs/amazon-eks-ami/blob/master/files/eni-max-pods.txt You can incerase that limit : https://docs.aws.amazon.com/eks/latest/userguide/cni-increase-ip-addresses.html
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Blog: KWOK: Kubernetes WithOut Kubelet
# of pods are essentially capped by the worker node choice.
below excerpt from: https://github.com/awslabs/amazon-eks-ami/blob/master/files/...
# Mapping is calculated from AWS EC2 API using the following formula:
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Tips on working with EKS
See also: EKS nodes lose readiness when containers exhaust memory
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Best managed kubernetes platform
So it manifests itself in this way: your pod is scheduled but remains pending forever. You check the logs and you see that it's complaining that the an IP address. Ultimately, if you check here, you see the maximum number of pods that can be scheduled on any underlying ec2 instance, even if you have remaining IPs in your subnet. I found this to be one of the most poorly understood phenomena in EKS. Even those who claimed to "crack" it and wrote fancy blog posts about it fundamentally got it wrong. AFAIK this document reflects the official AWS guide on how to mitigate this.
calico
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Kubernetes Setup With WSL Control Plane and Raspberry Pi Workers
wget -O calicoctl https://github.com/projectcalico/calico/releases/latest/download/calicoctl-linux-amd64 chmod +x calicoctl sudo mv calicoctl /usr/local/bin/
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How does Networking work in Google Cloud / Anthos?
You could use Calico in Google Cloud GKE. Apart from the CNI, you can also use Calico for defining network policies. Feel free to join the Calico communities on slack and Github. You can visit the Project Calico slack community https://slack.projectcalico.org/ or GitHub https://github.com/projectcalico/calico
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Monitor or log dropped network traffic for Kubernetes NetworkPolicy
We use Calico and they view this as a paid feature. https://github.com/projectcalico/calico/issues/1035
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Is networking guaranteed to continue working in terminationGracePeriodSeconds for a k8 container
In eBPF mode we had this one: https://github.com/projectcalico/calico/issues/7110, fixed in the upcoming v3.26.0 release.
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Anyone using in production Metallb with Calico L2 ?
Another thread discusses setting it up and whether the L2 with ipaddresspool is supported is here https://github.com/projectcalico/calico/issues/6789 but it seems it is not tested .
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How do you build a repo for ArgoCD?
$ kubectl apply -k ./ --dry-run='client' error: accumulating resources: accumulation err='accumulating resources from 'https://github.com/projectcalico/calico/manifests/tigera-operator.yaml?ref=v3.24.4': URL is a git repository': '/tmp/kustomize-3674962985/manifests/tigera-operator.yaml' refers to file 'tigera-operator.yaml'; expecting directory
- Calico kube controller in pending state after kubeadm init
- Project Calico
- How do I get rid of the 'calico' pods? My coreDNS pods are stuck in pending status
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Letting VMs talk to Kubernetes
If you do kubectl get pods --all-namespaces will show all the pods in Pending state, that's because we don't have any network plugin configured with our Kubernetes cluster. I use Calico network plugin for this demo but you can use any Kubernetes network plugin of your choice as long it has ability to define host gateway routes.
What are some alternatives?
amazon-eks-pod-identity-webhook - Amazon EKS Pod Identity Webhook
metallb - A network load-balancer implementation for Kubernetes using standard routing protocols
amazon-vpc-cni-k8s - Networking plugin repository for pod networking in Kubernetes using Elastic Network Interfaces on AWS
flannel - flannel is a network fabric for containers, designed for Kubernetes
prometheus - The Prometheus monitoring system and time series database.
kube-router - Kube-router, a turnkey solution for Kubernetes networking.
envoy - Cloud-native high-performance edge/middle/service proxy
kubernetes - Production-Grade Container Scheduling and Management
skopeo - Work with remote images registries - retrieving information, images, signing content
kube-config - Luke's kubeconfig
Grafana - The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
cni-plugin - Calico CNI plugin