124 lines
2.6 KiB
Go
124 lines
2.6 KiB
Go
package daemon
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"isle/bootstrap"
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"isle/garage"
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"isle/nebula"
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"path/filepath"
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"dev.mediocregopher.com/mediocre-go-lib.git/mctx"
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"dev.mediocregopher.com/mediocre-go-lib.git/mlog"
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"github.com/minio/minio-go/v7"
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)
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// Paths within garage's global bucket.
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const (
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garageGlobalBucketBootstrapHostsDirPath = "bootstrap/hosts"
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)
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// putGarageBoostrapHost places the <hostname>.json.signed file for this host
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// into garage so that other hosts are able to see relevant configuration for
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// it.
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func (d *daemon) putGarageBoostrapHost(ctx context.Context) error {
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var (
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b = d.currBootstrap
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host = b.ThisHost()
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client = b.GlobalBucketS3APIClient()
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)
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configured, err := nebula.Sign(
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host.HostConfigured, b.PrivateCredentials.SigningPrivateKey,
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)
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if err != nil {
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return fmt.Errorf("signing host configured data: %w", err)
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}
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hostB, err := json.Marshal(bootstrap.AuthenticatedHost{
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Assigned: b.SignedHostAssigned,
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Configured: configured,
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})
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if err != nil {
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return fmt.Errorf("encoding host data: %w", err)
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}
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filePath := filepath.Join(
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garageGlobalBucketBootstrapHostsDirPath,
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host.Name+".json.signed",
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)
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_, err = client.PutObject(
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ctx,
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garage.GlobalBucket,
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filePath,
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bytes.NewReader(hostB),
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int64(len(hostB)),
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minio.PutObjectOptions{},
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)
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if err != nil {
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return fmt.Errorf("writing to %q in global bucket: %w", filePath, err)
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}
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return nil
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}
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func getGarageBootstrapHosts(
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ctx context.Context, logger *mlog.Logger, currBootstrap bootstrap.Bootstrap,
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) (
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map[string]bootstrap.Host, error,
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) {
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var (
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b = currBootstrap
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client = b.GlobalBucketS3APIClient()
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hosts = map[string]bootstrap.Host{}
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objInfoCh = client.ListObjects(
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ctx, garage.GlobalBucket,
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minio.ListObjectsOptions{
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Prefix: garageGlobalBucketBootstrapHostsDirPath,
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Recursive: true,
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},
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)
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)
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for objInfo := range objInfoCh {
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ctx := mctx.Annotate(ctx, "objectKey", objInfo.Key)
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if objInfo.Err != nil {
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return nil, fmt.Errorf("listing objects: %w", objInfo.Err)
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}
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obj, err := client.GetObject(
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ctx, garage.GlobalBucket, objInfo.Key, minio.GetObjectOptions{},
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)
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if err != nil {
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return nil, fmt.Errorf("retrieving object %q: %w", objInfo.Key, err)
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}
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var authedHost bootstrap.AuthenticatedHost
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err = json.NewDecoder(obj).Decode(&authedHost)
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obj.Close()
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if err != nil {
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logger.Warn(ctx, "Object contains invalid json", err)
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continue
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}
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host, err := authedHost.Unwrap(b.CAPublicCredentials)
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if err != nil {
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logger.Warn(ctx, "Host could not be authenticated", err)
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}
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hosts[host.Name] = host
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}
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return hosts, nil
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}
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