Files
AetherForge/server/internal/erasure/s3_crr.go
AetherForge 5b5fc7c01c
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Add Emberwake Cloud Ecosystem deploy hub with AWS and generic spread templates.
Unified expandable panels with mermaid flows, ZIP export, connection tests, and Playwright smoke coverage.
2026-06-07 10:03:22 -07:00

80 lines
2.7 KiB
Go

package erasure
import (
"fmt"
"strings"
)
type S3ShardConfig struct {
ShardBucket string `json:"aws_s3_shard_bucket"`
ShardRegion string `json:"aws_s3_shard_region"`
CRRDestBucket string `json:"aws_s3_crr_dest_bucket"`
CRRDestRegion string `json:"aws_s3_crr_dest_region"`
CloudFrontDomain string `json:"aws_cloudfront_domain,omitempty"`
ReplicationRoleARN string `json:"aws_s3_replication_role_arn,omitempty"`
ReplicationAccountID string `json:"aws_account_id,omitempty"`
}
func S3ShardKey(token, region string, shardIndex int, shardHash string) string {
token = strings.TrimSpace(token)
region = strings.TrimSpace(region)
shardHash = strings.TrimSpace(strings.ToLower(shardHash))
if token == "" || region == "" || shardHash == "" {
return ""
}
return fmt.Sprintf("shards/%s/%s/%d-%s.bin", token, region, shardIndex, shardHash)
}
func S3ShardMetadata(region string, shardIndex int, token, shardHash string) map[string]string {
return map[string]string{
"region": strings.TrimSpace(region),
"shard-index": fmt.Sprintf("%d", shardIndex),
"token": strings.TrimSpace(token),
"shard-hash": strings.TrimSpace(strings.ToLower(shardHash)),
"shard-advert": FormatShardAdvert(region, shardIndex),
}
}
func FormatShardAdvert(region string, shardIndex int) string {
return fmt.Sprintf("%s:%d", strings.TrimSpace(region), shardIndex)
}
func ParseShardAdvert(advert string) (region string, index int, ok bool) {
advert = strings.TrimSpace(advert)
colon := strings.LastIndex(advert, ":")
if colon <= 0 {
return "", 0, false
}
region = strings.TrimSpace(advert[:colon])
if _, err := fmt.Sscanf(strings.TrimSpace(advert[colon+1:]), "%d", &index); err != nil {
return "", 0, false
}
return region, index, region != ""
}
func BuildS3CRRRule(cfg S3ShardConfig) (map[string]interface{}, error) {
if cfg.ShardBucket == "" || cfg.ShardRegion == "" || cfg.CRRDestBucket == "" || cfg.CRRDestRegion == "" {
return nil, fmt.Errorf("aws s3 shard source/dest bucket and regions required")
}
role := strings.TrimSpace(cfg.ReplicationRoleARN)
if role == "" {
acct := strings.TrimSpace(cfg.ReplicationAccountID)
if acct == "" {
acct = "ACCOUNT_ID"
}
role = fmt.Sprintf("arn:aws:iam::%s:role/aetherforge-s3-shard-replication", acct)
}
dest := strings.TrimSpace(cfg.CRRDestBucket)
if !strings.HasPrefix(dest, "arn:") {
dest = "arn:aws:s3:::" + dest
}
return map[string]interface{}{
"Role": role,
"Rules": []map[string]interface{}{{
"ID": "aetherforge-erasure-shard-crr", "Status": "Enabled", "Priority": 1,
"Filter": map[string]interface{}{"Prefix": "shards/"},
"Destination": map[string]interface{}{"Bucket": dest},
}},
}, nil
}