From 9a7aa008487b9cc5d016edd20b6190381fdd3bb9 Mon Sep 17 00:00:00 2001
From: Marco Nenciarini <marco.nenciarini@enterprisedb.com>
Date: Tue, 21 Apr 2026 11:44:52 +0200
Subject: [PATCH] fix: allow lz4 compression for base backups

Pick up the DataBackupConfiguration enum change from
cloudnative-pg/barman-cloud#216, regenerate the CRD and
manifest, and drop the "(WAL only)" marker from lz4 in the
compression docs.

Closes #867

Signed-off-by: Marco Nenciarini <marco.nenciarini@enterprisedb.com>
---
 config/crd/bases/barmancloud.cnpg.io_objectstores.yaml | 3 ++-
 go.mod                                                 | 2 ++
 go.sum                                                 | 4 ++--
 manifest.yaml                                          | 3 ++-
 web/docs/compression.md                                | 4 +++-
 5 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml b/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml
index 43c675d..f63e29b 100644
--- a/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml
+++ b/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml
@@ -144,10 +144,11 @@ spec:
                         description: |-
                           Compress a backup file (a tar file per tablespace) while streaming it
                           to the object store. Available options are empty string (no
-                          compression, default), `gzip`, `bzip2`, and `snappy`.
+                          compression, default), `gzip`, `bzip2`, `lz4`, and `snappy`.
                         enum:
                         - bzip2
                         - gzip
+                        - lz4
                         - snappy
                         type: string
                       encryption:
diff --git a/go.mod b/go.mod
index 61737ae..b131813 100644
--- a/go.mod
+++ b/go.mod
@@ -140,3 +140,5 @@ require (
 	sigs.k8s.io/structured-merge-diff/v6 v6.3.2 // indirect
 	sigs.k8s.io/yaml v1.6.0 // indirect
 )
+
+replace github.com/cloudnative-pg/barman-cloud => github.com/cloudnative-pg/barman-cloud v0.5.1-0.20260421102124-68d21f378690
diff --git a/go.sum b/go.sum
index f36e5f4..f936b7e 100644
--- a/go.sum
+++ b/go.sum
@@ -20,8 +20,8 @@ github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UF
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cloudnative-pg/api v1.29.0 h1:mNx6yJ5qi+Xrjs0NYrUy6V4MlXBkVJxGKwvTJZIuTX4=
 github.com/cloudnative-pg/api v1.29.0/go.mod h1:bF3HI8UVVcllZ7M8CfBufnb+Us8FyQArhD+4qtX0qhM=
-github.com/cloudnative-pg/barman-cloud v0.5.0 h1:DykSaX4o7ee2vyu5FQoG1RJsntHd+EIttIKZbJPlB1Q=
-github.com/cloudnative-pg/barman-cloud v0.5.0/go.mod h1:SO2HzLa+GWlSIpGyxnISoJAFPIcaa/qDa33Bb3jefac=
+github.com/cloudnative-pg/barman-cloud v0.5.1-0.20260421102124-68d21f378690 h1:QQGZQQByCDl/KJTIMaYHjdWNVuSNYPOPVxWy52NAFag=
+github.com/cloudnative-pg/barman-cloud v0.5.1-0.20260421102124-68d21f378690/go.mod h1:XPc5IUFP1y4cZX1sg+Pd8j9V4tmUEVnv3BGCpfQOOg8=
 github.com/cloudnative-pg/cloudnative-pg v1.29.0 h1:49Dm8+y4va7RODspJjeaK8uMWP3OGAD0gMsxhjm16Mo=
 github.com/cloudnative-pg/cloudnative-pg v1.29.0/go.mod h1:0Sgb/50VyaCnQm3IbWqgnhQG8Kb6mgqo8Jo1J+KtkSI=
 github.com/cloudnative-pg/cnpg-i v0.5.0 h1:/TOzpNT6cwNgrpftTtrnLKdoHgMwd+88vZgXjlVgXeE=
diff --git a/manifest.yaml b/manifest.yaml
index 60b755e..7dedaff 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -143,10 +143,11 @@ spec:
                         description: |-
                           Compress a backup file (a tar file per tablespace) while streaming it
                           to the object store. Available options are empty string (no
-                          compression, default), `gzip`, `bzip2`, and `snappy`.
+                          compression, default), `gzip`, `bzip2`, `lz4`, and `snappy`.
                         enum:
                         - bzip2
                         - gzip
+                        - lz4
                         - snappy
                         type: string
                       encryption:
diff --git a/web/docs/compression.md b/web/docs/compression.md
index 2abbede..cfc6355 100644
--- a/web/docs/compression.md
+++ b/web/docs/compression.md
@@ -15,7 +15,7 @@ for space, speed, or a balance of both.
 
 - `bzip2`
 - `gzip`
-- `lz4` (WAL only)
+- `lz4`
 - `snappy`
 - `xz` (WAL only)
 - `zstd` (WAL only)
@@ -41,3 +41,5 @@ network throughput.
 | bzip2       | 25,404           | 13,886            | 395                    | 67                   | 5.9:1 |
 | gzip        | 116,281          | 3,077             | 395                    | 91                   | 4.3:1 |
 | snappy      | 8,134            | 8,341             | 395                    | 166                  | 2.4:1 |
+
+Numbers come from a 2021 Barman proof of concept ([EnterpriseDB/barman#344](https://github.com/EnterpriseDB/barman/issues/344#issuecomment-992547396)), which predates `lz4` support for base backups. `lz4` is not yet benchmarked.