121 lines
3.2 KiB
Markdown
121 lines
3.2 KiB
Markdown
<h1> Deploying Kubernetes Clusters</h1>
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<h2>Table of Contents</h2>
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- [Introduction](#introduction)
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- [Example](#example)
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***
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## Introduction
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We show how to deploy a Kubernetes cluster with the Go client.
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## Example
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```go
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import (
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"fmt"
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"net"
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"github.com/threefoldtech/tfgrid-sdk-go/grid-client/deployer"
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"github.com/threefoldtech/tfgrid-sdk-go/grid-client/workloads"
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"github.com/threefoldtech/tfgrid-sdk-go/grid-proxy/pkg/types"
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"github.com/threefoldtech/zos/pkg/gridtypes"
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)
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func main() {
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// Create Threefold plugin client
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tfPluginClient, err := deployer.NewTFPluginClient(mnemonics, "sr25519", network, "", "", "", 0, true)
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// Get a free node to deploy
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freeMRU := uint64(1)
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freeSRU := uint64(1)
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status := "up"
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filter := types.NodeFilter{
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FreeMRU: &freeMRU,
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FreeSRU: &freeSRU,
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Status: &status,
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}
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nodeIDs, err := deployer.FilterNodes(tfPluginClient.GridProxyClient, filter)
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masterNodeID := uint32(nodeIDs[0].NodeID)
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workerNodeID1 := uint32(nodeIDs[1].NodeID)
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workerNodeID2 := uint32(nodeIDs[2].NodeID)
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// Create a new network to deploy
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network := workloads.ZNet{
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Name: "newNetwork",
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Description: "A network to deploy",
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Nodes: []uint32{masterNodeID, workerNodeID1, workerNodeID2},
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IPRange: gridtypes.NewIPNet(net.IPNet{
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IP: net.IPv4(10, 1, 0, 0),
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Mask: net.CIDRMask(16, 32),
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}),
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AddWGAccess: true,
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}
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// Create master and worker nodes to deploy
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master := workloads.K8sNode{
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Name: "master",
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Node: masterNodeID,
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DiskSize: 1,
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CPU: 2,
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Memory: 1024,
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Planetary: true,
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Flist: "https://hub.grid.tf/tf-official-apps/threefoldtech-k3s-latest.flist",
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}
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worker1 := workloads.K8sNode{
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Name: "worker1",
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Node: workerNodeID1,
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DiskSize: 1,
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CPU: 2,
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Memory: 1024,
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Flist: "https://hub.grid.tf/tf-official-apps/threefoldtech-k3s-latest.flist",
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}
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worker2 := workloads.K8sNode{
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Name: "worker2",
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Node: workerNodeID2,
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DiskSize: 1,
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Flist: "https://hub.grid.tf/tf-official-apps/threefoldtech-k3s-latest.flist",
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CPU: 2,
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Memory: 1024,
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}
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k8sCluster := workloads.K8sCluster{
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Master: &master,
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Workers: []workloads.K8sNode{worker1, worker2},
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Token: "tokens",
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SSHKey: publicKey,
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NetworkName: network.Name,
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}
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// Deploy the network first
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err = tfPluginClient.NetworkDeployer.Deploy(ctx, &network)
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// Deploy the k8s cluster
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err = tfPluginClient.K8sDeployer.Deploy(ctx, &k8sCluster)
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// Load the k8s cluster
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k8sClusterObj, err := tfPluginClient.State.LoadK8sFromGrid([]uint32{masterNodeID, workerNodeID1, workerNodeID2}, master.Name)
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// Print master node Yggdrasil IP
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fmt.Println(k8sClusterObj.Master.YggIP)
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// Cancel the VM deployment
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err = tfPluginClient.K8sDeployer.Cancel(ctx, &k8sCluster)
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// Cancel the network deployment
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err = tfPluginClient.NetworkDeployer.Cancel(ctx, &network)
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}
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```
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You should see an output like this:
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```bash
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300:e9c4:9048:57cf:6d98:42c6:a7bf:2e3f
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```
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