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110 lines
3.9 KiB
Markdown
110 lines
3.9 KiB
Markdown
# ARM64
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!!! warning
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ARM64 support is experimental
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Typhoon has experimental support for ARM64 with Fedora CoreOS on AWS. Full clusters can be created with ARM64 controller and worker nodes. Or worker pools of ARM64 nodes can be attached to an AMD64 cluster to create a hybrid/mixed architecture cluster.
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!!! note
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Currently, CNI networking must be set to flannel or Cilium.
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## Cluster
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Create a cluster with ARM64 controller and worker nodes. Container workloads must be `arm64` compatible and use `arm64` container images.
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```tf
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module "gravitas" {
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source = "git::https://github.com/poseidon/typhoon//aws/fedora-coreos/kubernetes?ref=v1.22.2"
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# AWS
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cluster_name = "gravitas"
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dns_zone = "aws.example.com"
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dns_zone_id = "Z3PAABBCFAKEC0"
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# configuration
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ssh_authorized_key = "ssh-ed25519 AAAAB3Nz..."
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# optional
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arch = "arm64"
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networking = "cilium"
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worker_count = 2
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worker_price = "0.0168"
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controller_type = "t4g.small"
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worker_type = "t4g.small"
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}
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```
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Verify the cluster has only arm64 (`aarch64`) nodes.
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```
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$ kubectl get nodes -o wide
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NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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ip-10-0-12-178 Ready <none> 101s v1.22.2 10.0.12.178 <none> Fedora CoreOS 32.20201104.dev.0 5.8.17-200.fc32.aarch64 docker://19.3.11
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ip-10-0-18-93 Ready <none> 102s v1.22.2 10.0.18.93 <none> Fedora CoreOS 32.20201104.dev.0 5.8.17-200.fc32.aarch64 docker://19.3.11
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ip-10-0-90-10 Ready <none> 104s v1.22.2 10.0.90.10 <none> Fedora CoreOS 32.20201104.dev.0 5.8.17-200.fc32.aarch64 docker://19.3.11
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```
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## Hybrid
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Create a hybrid/mixed arch cluster by defining an AWS cluster. Then define a [worker pool](worker-pools.md#aws) with ARM64 workers. Optional taints are added to aid in scheduling.
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=== "Cluster (amd64)"
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```tf
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module "gravitas" {
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source = "git::https://github.com/poseidon/typhoon//aws/fedora-coreos/kubernetes?ref=v1.22.2"
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# AWS
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cluster_name = "gravitas"
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dns_zone = "aws.example.com"
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dns_zone_id = "Z3PAABBCFAKEC0"
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# configuration
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ssh_authorized_key = "ssh-ed25519 AAAAB3Nz..."
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# optional
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networking = "cilium"
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worker_count = 2
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worker_price = "0.021"
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daemonset_tolerations = ["arch"] # important
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}
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```
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=== "Worker Pool (arm64)"
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```tf
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module "gravitas-arm64" {
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source = "git::https://github.com/poseidon/typhoon//aws/fedora-coreos/kubernetes/workers?ref=v1.22.2"
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# AWS
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vpc_id = module.gravitas.vpc_id
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subnet_ids = module.gravitas.subnet_ids
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security_groups = module.gravitas.worker_security_groups
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# configuration
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name = "gravitas-arm64"
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kubeconfig = module.gravitas.kubeconfig
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ssh_authorized_key = var.ssh_authorized_key
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# optional
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arch = "arm64"
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instance_type = "t4g.small"
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spot_price = "0.0168"
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node_taints = ["arch=arm64:NoSchedule"]
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}
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```
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Verify amd64 (x86_64) and arm64 (aarch64) nodes are present.
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```
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$ kubectl get nodes -o wide
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NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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ip-10-0-1-81 Ready <none> 4m28s v1.22.2 10.0.1.81 <none> Fedora CoreOS 34.20210427.3.0 5.11.15-300.fc34.x86_64 docker://20.10.6
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ip-10-0-17-86 Ready <none> 4m28s v1.22.2 10.0.17.86 <none> Fedora CoreOS 33.20210413.dev.0 5.10.19-200.fc33.aarch64 docker://19.3.13
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ip-10-0-21-45 Ready <none> 4m28s v1.22.2 10.0.21.45 <none> Fedora CoreOS 34.20210427.3.0 5.11.15-300.fc34.x86_64 docker://20.10.6
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ip-10-0-40-36 Ready <none> 4m22s v1.22.2 10.0.40.36 <none> Fedora CoreOS 34.20210427.3.0 5.11.15-300.fc34.x86_64 docker://20.10.6
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```
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