From: Christian Ebner <c.ebner@proxmox.com>
To: pbs-devel@lists.proxmox.com
Subject: [pbs-devel] [RFC proxmox-backup 07/39] s3 client: add dedicated type for s3 object keys
Date: Mon, 19 May 2025 13:46:08 +0200 [thread overview]
Message-ID: <20250519114640.303640-8-c.ebner@proxmox.com> (raw)
In-Reply-To: <20250519114640.303640-1-c.ebner@proxmox.com>
S3 objects are uniquely identified within a bucket by their object
key [0].
Implements conversion and utility traits to easily convert and encode
a string or a chunk digest as corresponding object key for the S3
storage backend. Adds type checking for s3 client operations requiring
an object key.
[0] https://docs.aws.amazon.com/AmazonS3/latest/userguide/object-keys.html
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
pbs-s3-client/src/lib.rs | 2 ++
pbs-s3-client/src/object_key.rs | 64 +++++++++++++++++++++++++++++++++
2 files changed, 66 insertions(+)
create mode 100644 pbs-s3-client/src/object_key.rs
diff --git a/pbs-s3-client/src/lib.rs b/pbs-s3-client/src/lib.rs
index 5a60b92ec..a4081df15 100644
--- a/pbs-s3-client/src/lib.rs
+++ b/pbs-s3-client/src/lib.rs
@@ -1,3 +1,5 @@
mod aws_sign_v4;
mod client;
pub use client::{S3Client, S3ClientOptions};
+mod object_key;
+pub use object_key::{S3ObjectKey, S3_CONTENT_PREFIX};
diff --git a/pbs-s3-client/src/object_key.rs b/pbs-s3-client/src/object_key.rs
new file mode 100644
index 000000000..362c0cd55
--- /dev/null
+++ b/pbs-s3-client/src/object_key.rs
@@ -0,0 +1,64 @@
+use crate::aws_sign_v4::aws_sign_v4_uri_encode;
+
+pub const S3_CONTENT_PREFIX: &str = ".content";
+
+#[derive(Clone)]
+pub struct S3ObjectKey {
+ object_key: String,
+}
+
+// All regular keys (non-digests) get prefixed by a `/.contents`, so that
+// content listing without all the chunks can be done by that prefix.
+impl core::convert::From<&str> for S3ObjectKey {
+ fn from(object_key: &str) -> Self {
+ let object_key = object_key.strip_prefix("/").unwrap_or(object_key);
+ let object_key = format!(
+ "/{S3_CONTENT_PREFIX}/{object_key}",
+ object_key = aws_sign_v4_uri_encode(object_key, true)
+ );
+
+ Self { object_key }
+ }
+}
+
+impl core::convert::From<&[u8; 32]> for S3ObjectKey {
+ fn from(digest: &[u8; 32]) -> Self {
+ // Use the same layout as on regular PBS datastores, including the 4 hex digit prefix
+ let object_key = hex::encode(digest);
+ let prefix = &object_key[..4];
+ Self {
+ object_key: format!("/.chunks/{prefix}/{object_key}"),
+ }
+ }
+}
+
+impl core::convert::From<[u8; 32]> for S3ObjectKey {
+ fn from(digest: [u8; 32]) -> Self {
+ Self::from(&digest)
+ }
+}
+
+impl std::ops::Deref for S3ObjectKey {
+ type Target = str;
+
+ fn deref(&self) -> &Self::Target {
+ &self.object_key
+ }
+}
+
+impl std::fmt::Display for S3ObjectKey {
+ fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+ write!(f, "{}", self.object_key)
+ }
+}
+
+impl S3ObjectKey {
+ /// Generate source key for copy object operations given the source bucket.
+ pub fn to_copy_source_key(&self, source_bucket: &str) -> Self {
+ Self {
+ // object key already contains the required separator slash in-between source bucket
+ // and source object key.
+ object_key: format!("{source_bucket}{}", self.object_key),
+ }
+ }
+}
--
2.39.5
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next prev parent reply other threads:[~2025-05-19 11:47 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-19 11:46 [pbs-devel] [RFC proxmox proxmox-backup 00/39] S3 storage backend for datastores Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox 1/2] pbs-api-types: add types for S3 client configs and secrets Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox 2/2] pbs-api-types: extend datastore config by backend config enum Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 03/39] fmt: fix minor formatting issues Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 04/39] verify: refactor verify related functions to be methods of worker Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 05/39] s3 client: add crate for AWS S3 compatible object store client Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 06/39] s3 client: implement AWS signature v4 request authentication Christian Ebner
2025-05-19 11:46 ` Christian Ebner [this message]
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 08/39] s3 client: add helper for last modified timestamp parsing Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 09/39] s3 client: add helper to parse http date headers Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 10/39] s3 client: implement methods to operate on s3 objects in bucket Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 11/39] config: introduce s3 object store client configuration Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 12/39] api: config: implement endpoints to manipulate and list s3 configs Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 13/39] api: datastore: check S3 backend bucket access on datastore create Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 14/39] datastore: allow to get the backend for a datastore Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 15/39] api: backup: store datastore backend in runtime environment Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 16/39] api: backup: conditionally upload chunks to S3 object store backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 17/39] api: backup: conditionally upload blobs " Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 18/39] api: backup: conditionally upload indices " Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 19/39] api: backup: conditionally upload manifest " Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 20/39] api: reader: fetch chunks based on datastore backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 21/39] datastore: local chunk reader: read chunks based on backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 22/39] verify worker: add datastore backed to verify worker Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 23/39] verify: implement chunk verification for stores with s3 backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 24/39] api: remove snapshot from S3 backend on snapshot delete Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 25/39] datastore: prune groups/snapshots from S3 object store backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 26/39] datastore: implement garbage collection for s3 backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 27/39] ui: add S3 client edit window for configuration create/edit Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 28/39] ui: add S3 client view for configuration Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 29/39] ui: expose the S3 client view in the navigation tree Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 30/39] ui: add s3 bucket selector and allow to set s3 backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 31/39] api/bin: add endpoint and command to test s3 backend for datastore Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 32/39] tools: lru cache: add removed callback for evicted nodes Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 33/39] tools: async lru cache: implement insert, remove and contains methods Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 34/39] datastore: add local datastore cache for network attached storages Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 35/39] api: backup: use local datastore cache on S3 backend chunk upload Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 36/39] api: reader: use local datastore cache on S3 backend chunk fetching Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 37/39] api: backup: add no-cache flag to bypass local datastore cache Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 38/39] datastore: get and set owner for S3 store backend Christian Ebner
2025-05-19 11:46 ` [pbs-devel] [RFC proxmox-backup 39/39] datastore: create namespace marker in S3 backend Christian Ebner
2025-05-29 14:33 ` [pbs-devel] superseded: [RFC proxmox proxmox-backup 00/39] S3 storage backend for datastores Christian Ebner
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