registry/deploy/pkg/providers/gcp/provider.go
adam jones 03ac9c955e
Add database backup functionality with GCS integration (#297)
<!-- Provide a brief summary of your changes -->
Implements automated database backup functionality with Google Cloud
Storage integration, including retention policies and MinIO support for
local development.

## Motivation and Context
<!-- Why is this change needed? What problem does it solve? -->
This change adds critical database backup capabilities to ensure data
durability and disaster recovery. The solution provides automated
backups with configurable retention policies and supports both
production (GCS) and development (MinIO) environments.

## How Has This Been Tested?
<!-- Have you tested this in a real application? Which scenarios were
tested? -->
- Tested backup creation and restoration with MinIO in local development
- Verified GCS bucket lifecycle policies for automatic deletion after 60
days
- Tested backup retention and cleanup logic

## Breaking Changes
<!-- Will users need to update their code or configurations? -->
No breaking changes. This is an additive feature that doesn't affect
existing functionality.

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Documentation update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [x] I have added appropriate error handling
- [x] I have added or updated documentation as needed

## Additional context
<!-- Add any other context, implementation notes, or design decisions
-->
- Implements 60-day retention period for backups as a safety net
- Uses GCS lifecycle rules for automatic cleanup
- Includes MinIO setup instructions for local development testing
- Port-forwarding commands updated for consistency across documentation
- Fixes #184
2025-08-25 17:27:40 +01:00

304 lines
9.8 KiB
Go

package gcp
import (
"encoding/base64"
"fmt"
"github.com/pulumi/pulumi-gcp/sdk/v8/go/gcp"
"github.com/pulumi/pulumi-gcp/sdk/v8/go/gcp/container"
"github.com/pulumi/pulumi-gcp/sdk/v8/go/gcp/storage"
"github.com/pulumi/pulumi-kubernetes/sdk/v4/go/kubernetes"
corev1 "github.com/pulumi/pulumi-kubernetes/sdk/v4/go/kubernetes/core/v1"
metav1 "github.com/pulumi/pulumi-kubernetes/sdk/v4/go/kubernetes/meta/v1"
"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
"github.com/pulumi/pulumi/sdk/v3/go/pulumi/config"
"github.com/modelcontextprotocol/registry/deploy/infra/pkg/providers"
)
// Provider implements the ClusterProvider interface for Google Kubernetes Engine
type Provider struct{}
// createGCPProvider creates a GCP provider with explicit credentials if configured
func createGCPProvider(ctx *pulumi.Context, name string) (*gcp.Provider, error) {
gcpConf := config.New(ctx, "gcp")
// Get project ID from config
projectID := gcpConf.Get("project")
if projectID == "" {
return nil, fmt.Errorf("GCP project ID not configured. Set gcp:project")
}
// Get region from config or use default
region := gcpConf.Get("region")
if region == "" {
region = "us-central1"
}
// Get credentials from config (base64 encoded service account JSON)
credentials := gcpConf.Get("credentials")
if credentials != "" {
// Decode the base64 credentials
decodedCreds, err := base64.StdEncoding.DecodeString(credentials)
if err != nil {
return nil, fmt.Errorf("failed to decode GCP credentials: %w", err)
}
credentials = string(decodedCreds)
}
// Create a GCP provider with explicit credentials if provided
if credentials != "" {
return gcp.NewProvider(ctx, name, &gcp.ProviderArgs{
Project: pulumi.String(projectID),
Region: pulumi.String(region),
Credentials: pulumi.String(credentials),
})
}
return nil, nil
}
// CreateCluster creates a Google Kubernetes Engine cluster
func (p *Provider) CreateCluster(ctx *pulumi.Context, environment string) (*providers.ProviderInfo, error) {
// Get configuration
gcpConf := config.New(ctx, "gcp")
// Get project ID from config
projectID := gcpConf.Get("project")
if projectID == "" {
return nil, fmt.Errorf("GCP project ID not configured. Set gcp:project")
}
// Get region from config or use default
region := gcpConf.Get("region")
if region == "" {
region = "us-central1"
}
// Create GCP provider with explicit credentials if configured
gcpProvider, err := createGCPProvider(ctx, "gcp-explicit")
if err != nil {
return nil, err
}
// Create GKE cluster
clusterName := fmt.Sprintf("mcp-registry-%s", environment)
// Use a specific zone instead of region for zonal cluster
zone := fmt.Sprintf("%s-b", region)
// Configure the GKE cluster
clusterArgs := &container.ClusterArgs{
Name: pulumi.String(clusterName),
Location: pulumi.String(zone),
Project: pulumi.String(projectID),
Description: pulumi.String(fmt.Sprintf("MCP Registry %s GKE Cluster", environment)),
// Initial node count (will be managed by node pool)
InitialNodeCount: pulumi.Int(1),
// Remove default node pool after cluster creation
RemoveDefaultNodePool: pulumi.Bool(true),
AddonsConfig: &container.ClusterAddonsConfigArgs{
// Disable as we use ingress-nginx
HttpLoadBalancing: &container.ClusterAddonsConfigHttpLoadBalancingArgs{
Disabled: pulumi.Bool(true),
},
},
}
// Add provider if we have explicit credentials
clusterOpts := []pulumi.ResourceOption{}
if gcpProvider != nil {
clusterOpts = append(clusterOpts, pulumi.Provider(gcpProvider))
}
cluster, err := container.NewCluster(ctx, clusterName, clusterArgs, clusterOpts...)
if err != nil {
return nil, fmt.Errorf("failed to create GKE cluster: %w", err)
}
// Create a managed node pool for the cluster
nodePoolName := fmt.Sprintf("%s-nodepool", clusterName)
nodePoolArgs := &container.NodePoolArgs{
Cluster: cluster.Name,
Location: pulumi.String(zone),
Project: pulumi.String(projectID),
// Node pool configuration
NodeCount: pulumi.Int(2),
NodeConfig: &container.NodePoolNodeConfigArgs{
MachineType: pulumi.String("e2-small"),
DiskSizeGb: pulumi.Int(20),
DiskType: pulumi.String("pd-standard"),
},
// Node management configuration
Management: &container.NodePoolManagementArgs{
AutoRepair: pulumi.Bool(true),
AutoUpgrade: pulumi.Bool(true),
},
}
// Add provider if we have explicit credentials
nodePoolOpts := []pulumi.ResourceOption{}
if gcpProvider != nil {
nodePoolOpts = append(nodePoolOpts, pulumi.Provider(gcpProvider))
}
nodePool, err := container.NewNodePool(ctx, nodePoolName, nodePoolArgs, nodePoolOpts...)
if err != nil {
return nil, fmt.Errorf("failed to create node pool: %w", err)
}
// Create Kubernetes provider using the cluster directly
k8sProvider, err := kubernetes.NewProvider(ctx, "k8s-provider", &kubernetes.ProviderArgs{
Kubeconfig: pulumi.All(cluster.Endpoint, cluster.MasterAuth).ApplyT(func(args []any) (string, error) {
endpoint := args[0].(string)
masterAuth := args[1].(container.ClusterMasterAuth)
context := fmt.Sprintf("%s_%s_%s", projectID, zone, clusterName)
// Extract CA certificate
caCert := ""
if masterAuth.ClusterCaCertificate != nil {
caCert = *masterAuth.ClusterCaCertificate
}
// Create kubeconfig using gke-gcloud-auth-plugin
kubeconfigYAML := fmt.Sprintf(`apiVersion: v1
clusters:
- cluster:
certificate-authority-data: %s
server: https://%s
name: %s
contexts:
- context:
cluster: %s
user: %s
name: %s
current-context: %s
kind: Config
preferences: {}
users:
- name: %s
user:
exec:
apiVersion: client.authentication.k8s.io/v1beta1
command: gke-gcloud-auth-plugin
installHint: Install gke-gcloud-auth-plugin for use with kubectl by following
https://cloud.google.com/blog/products/containers-kubernetes/kubectl-auth-changes-in-gke
provideClusterInfo: true
`, caCert, endpoint, context, context, context, context, context, context)
return kubeconfigYAML, nil
}).(pulumi.StringOutput),
}, pulumi.DependsOn([]pulumi.Resource{cluster, nodePool}))
if err != nil {
return nil, fmt.Errorf("failed to create Kubernetes provider: %w", err)
}
return &providers.ProviderInfo{
Name: nodePool.Cluster,
Provider: k8sProvider,
}, nil
}
// CreateBackupStorage creates GCS bucket with HMAC credentials for S3-compatible access
func (p *Provider) CreateBackupStorage(ctx *pulumi.Context, cluster *providers.ProviderInfo, environment string) (*providers.BackupStorageInfo, error) {
gcpConf := config.New(ctx, "gcp")
projectID := gcpConf.Get("project")
if projectID == "" {
return nil, fmt.Errorf("GCP project ID not configured. Set gcp:project")
}
// Create GCP provider with explicit credentials if configured
gcpProvider, err := createGCPProvider(ctx, "gcp-explicit-backup")
if err != nil {
return nil, err
}
// Set resource options with provider if we have explicit credentials
resourceOpts := []pulumi.ResourceOption{}
if gcpProvider != nil {
resourceOpts = append(resourceOpts, pulumi.Provider(gcpProvider))
}
// Create GCS bucket for backups
bucketName := fmt.Sprintf("mcp-registry-%s-backups", environment)
bucket, err := storage.NewBucket(ctx, "backup-bucket", &storage.BucketArgs{
Name: pulumi.String(bucketName),
Location: pulumi.String("US"),
StorageClass: pulumi.String("STANDARD"),
LifecycleRules: storage.BucketLifecycleRuleArray{
&storage.BucketLifecycleRuleArgs{
Action: &storage.BucketLifecycleRuleActionArgs{
Type: pulumi.String("Delete"),
},
Condition: &storage.BucketLifecycleRuleConditionArgs{
Age: pulumi.Int(60), // Keep backups for 60 days (K8up manages pruning at 28 days, GCS deletion is a safety net)
},
},
},
UniformBucketLevelAccess: pulumi.Bool(true),
Versioning: &storage.BucketVersioningArgs{
Enabled: pulumi.Bool(true),
},
Labels: pulumi.StringMap{
"environment": pulumi.String(environment),
"purpose": pulumi.String("k8up-backups"),
},
}, resourceOpts...)
if err != nil {
return nil, fmt.Errorf("failed to create backup bucket: %w", err)
}
// Use the existing Pulumi service account instead of creating a new one
// The service account email is pulumi-svc@<project>.iam.gserviceaccount.com
serviceAccountEmail := fmt.Sprintf("pulumi-svc@%s.iam.gserviceaccount.com", projectID)
// Grant the service account access to the bucket
_, err = storage.NewBucketIAMMember(ctx, "backup-bucket-iam", &storage.BucketIAMMemberArgs{
Bucket: bucket.Name,
Role: pulumi.String("roles/storage.objectAdmin"),
Member: pulumi.Sprintf("serviceAccount:%s", pulumi.String(serviceAccountEmail)),
}, resourceOpts...)
if err != nil {
return nil, fmt.Errorf("failed to grant bucket access: %w", err)
}
// Create HMAC key for S3-compatible access
hmacKey, err := storage.NewHmacKey(ctx, "backup-hmac-key", &storage.HmacKeyArgs{
ServiceAccountEmail: pulumi.String(serviceAccountEmail),
Project: pulumi.String(projectID),
}, resourceOpts...)
if err != nil {
return nil, fmt.Errorf("failed to create HMAC key: %w", err)
}
// Create Kubernetes secret with S3-compatible credentials
backupSecret, err := corev1.NewSecret(ctx, "k8up-backup-credentials", &corev1.SecretArgs{
Metadata: &metav1.ObjectMetaArgs{
Name: pulumi.String("k8up-backup-credentials"),
Namespace: pulumi.String("default"),
Labels: pulumi.StringMap{
"k8up.io/backup": pulumi.String("true"),
"environment": pulumi.String(environment),
},
},
Type: pulumi.String("Opaque"),
StringData: pulumi.StringMap{
"AWS_ACCESS_KEY_ID": hmacKey.AccessId,
"AWS_SECRET_ACCESS_KEY": hmacKey.Secret,
},
}, pulumi.Provider(cluster.Provider))
if err != nil {
return nil, fmt.Errorf("failed to create backup credentials secret: %w", err)
}
return &providers.BackupStorageInfo{
Endpoint: "https://storage.googleapis.com",
BucketName: bucketName,
Credentials: backupSecret,
}, nil
}