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cluster.go
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cluster.go
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package main
import (
"context"
"errors"
"fmt"
"log"
"os"
"github.com/pulumi/pulumi-kubernetes/sdk/v3/go/kubernetes/helm/v3"
"github.com/pulumi/pulumi-kubernetes/sdk/v3/go/kubernetes/yaml"
"github.com/pulumi/pulumi/sdk/v3/go/auto"
"github.com/pulumi/pulumi/sdk/v3/go/auto/optup"
"github.com/pulumi/pulumi/sdk/v3/go/common/tokens"
"github.com/pulumi/pulumi/sdk/v3/go/common/workspace"
"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
"sigs.k8s.io/kind/pkg/cluster"
"sigs.k8s.io/kind/pkg/cmd"
)
var (
errPulumi = errors.New("pulumi error")
errKind = errors.New("kind error")
)
func genericErrorCheck(err error) {
if err != nil {
log.Println(err)
os.Exit(1)
}
}
//nolint:nolintlint,typecheck // The helm type is broken.
func deployCilium(ctx *pulumi.Context) error {
chartArgs := helm.ChartArgs{
Chart: pulumi.String("cilium"),
Version: pulumi.String("1.14.0-snapshot.2"),
Namespace: pulumi.String("kube-system"),
FetchArgs: helm.FetchArgs{
Repo: pulumi.String("https://helm.cilium.io/"),
},
Values: pulumi.Map{
// Name of the `control-plane` node in `kubectl get nodes`.
"k8sServiceHost": pulumi.String("kind-control-plane"),
// Forwarded port in `docker ps` for the control plane.
"k8sServicePort": pulumi.String("6443"),
// Required for proper Cilium operation.
"kubeProxyReplacement": pulumi.String("strict"),
// IPAM config subnets from `docker network inspect kind`.
"ipv4NativeRoutingCIDR": pulumi.String("172.20.0.0/16"),
"ipv6NativeRoutingCIDR": pulumi.String("fc00:f853:ccd:e793::/64"),
// Faster masquerading.
"bpf": pulumi.Map{
"masquerade": pulumi.Bool(true),
"tproxy": pulumi.Bool(true),
},
"ipam": pulumi.Map{
"mode": pulumi.String("kubernetes"),
"operator": pulumi.Map{
// Default values for kind.
"clusterPoolIPv4PodCIDRList": pulumi.String(
"10.244.0.0/16",
),
"clusterPoolIPv6PodCIDRList": pulumi.String(
"fd00:10:244::/56",
),
},
},
"image": pulumi.Map{
"pullPolicy": pulumi.String("IfNotPresent"),
},
"hubble": pulumi.Map{
"relay": pulumi.Map{"enabled": pulumi.Bool(true)},
"ui": pulumi.Map{"enabled": pulumi.Bool(true)},
},
// This causes issues. Find out why and enable it.
// "autoDirectNodeRoutes": pulumi.Bool(true),
// "tunnel": pulumi.String("disabled"),
},
}
if _, err := helm.NewChart(ctx, "cilium", chartArgs); err != nil {
return fmt.Errorf("%w: %w", errPulumi, err)
}
return nil
}
//nolint:nolintlint,typecheck // The helm type is broken.
func deployZot(ctx *pulumi.Context) error {
chartArgs := helm.ChartArgs{
Chart: pulumi.String("zot"),
Version: pulumi.String("0.1.21"),
Namespace: pulumi.String("kube-system"),
FetchArgs: helm.FetchArgs{
Repo: pulumi.String("https://zotregistry.io/helm-charts"),
},
}
if _, err := helm.NewChart(ctx, "zot", chartArgs); err != nil {
return fmt.Errorf("%w: %w", errPulumi, err)
}
return nil
}
func deployTektonPipelines(ctx *pulumi.Context) error {
fileArgs := &yaml.ConfigFileArgs{
File: "https://storage.googleapis.com/tekton-releases/pipeline/latest/release.yaml",
}
if _, err := yaml.NewConfigFile(ctx, "tekton-pipelines", fileArgs); err != nil {
return fmt.Errorf("%w: %w", errPulumi, err)
}
return nil
}
func deployTektonTriggers(ctx *pulumi.Context) error {
fileArgs := &yaml.ConfigFileArgs{
File: "https://storage.googleapis.com/tekton-releases/pipeline/triggers/release.yaml",
}
if _, err := yaml.NewConfigFile(ctx, "tekton-triggers", fileArgs); err != nil {
return fmt.Errorf("%w: %w", errPulumi, err)
}
return nil
}
func program(ctx *pulumi.Context) error {
if err := deployCilium(ctx); err != nil {
return err
}
if err := deployZot(ctx); err != nil {
return err
}
if err := deployTektonPipelines(ctx); err != nil {
return err
}
return deployTektonTriggers(ctx)
}
func createLocalCluster(provider *cluster.Provider) error {
log.Printf("Creating kind cluster.")
if err := provider.Create(
"kind",
cluster.CreateWithRawConfig([]byte(`
---
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
- role: worker
- role: worker
networking:
disableDefaultCNI: true
kubeProxyMode: none
`),
),
); err != nil {
return fmt.Errorf("%w: %w", errKind, err)
}
return nil
}
func deleteLocalCluster(provider *cluster.Provider) error {
log.Printf("Deleting cluster.")
if err := provider.Delete("kind", ""); err != nil {
return fmt.Errorf("%w: %w", errKind, err)
}
return nil
}
func main() {
argsWithoutProg := os.Args[1:]
if len(argsWithoutProg) != 1 {
log.Printf(
"Failed to interpret command. Please specify 'up' or 'down'.",
)
os.Exit(1)
}
// Kind cluster setup/teardown.
kindProvider := cluster.NewProvider(
cluster.ProviderWithLogger(cmd.NewLogger()),
)
if argsWithoutProg[0] == "up" {
genericErrorCheck(createLocalCluster(kindProvider))
}
if argsWithoutProg[0] == "down" {
genericErrorCheck(deleteLocalCluster(kindProvider))
os.Exit(0)
}
// Pulumi cluster setup/refresh.
ctx := context.Background()
projectName := "rules_ll_cluster"
stackName := "dev"
project := auto.Project(workspace.Project{
Name: tokens.PackageName(projectName),
Runtime: workspace.NewProjectRuntimeInfo("go", nil),
Backend: &workspace.ProjectBackend{URL: "file://~/.pulumi"},
})
// Only use this for local development.
envvars := auto.EnvVars(map[string]string{"PULUMI_CONFIG_PASSPHRASE": ""})
stack, err := auto.UpsertStackInlineSource(
ctx,
stackName,
projectName,
program,
project,
envvars,
)
genericErrorCheck(err)
log.Printf("Operating on stack %q\n", stackName)
log.Println("Starting refresh")
_, err = stack.Refresh(ctx)
genericErrorCheck(err)
log.Println("Refresh succeeded.")
log.Println("Starting update")
stdoutStreamer := optup.ProgressStreams(os.Stdout)
_, err = stack.Up(ctx, stdoutStreamer)
genericErrorCheck(err)
log.Println("Cluster is running. Use `kubectl` to interact with it.")
}