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feat(redis): add redis.cluster support #2569

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367c6b7
feat(redis): add redis.cluster config and docs
Apr 16, 2026
e6dd673
chore(configs): regenerate redis configs
Apr 16, 2026
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24 changes: 23 additions & 1 deletion .config/redis.config.php
View file
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Original file line number Diff line number Diff line change
@@ -1,5 +1,27 @@
<?php
if (getenv('REDIS_HOST')) {
if (getenv('REDIS_CLUSTER_SEEDS')) {
$redisClusterSeeds = array_values(
array_filter(
array_map('trim', explode(',', getenv('REDIS_CLUSTER_SEEDS'))),
function ($seed) {
return $seed !== '';
}
)
);

$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis.cluster' => array(
'seeds' => $redisClusterSeeds,
'password' => getenv('REDIS_HOST_PASSWORD_FILE') ? trim(file_get_contents(getenv('REDIS_HOST_PASSWORD_FILE'))) : (string) getenv('REDIS_HOST_PASSWORD'),
),
);

if (getenv('REDIS_HOST_USER') !== false) {
$CONFIG['redis.cluster']['user'] = (string) getenv('REDIS_HOST_USER');
}
} elseif (getenv('REDIS_HOST')) {
$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
Expand Down
24 changes: 23 additions & 1 deletion 32/apache/config/redis.config.php
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Original file line number Diff line number Diff line change
@@ -1,5 +1,27 @@
<?php
if (getenv('REDIS_HOST')) {
if (getenv('REDIS_CLUSTER_SEEDS')) {
$redisClusterSeeds = array_values(
array_filter(
array_map('trim', explode(',', getenv('REDIS_CLUSTER_SEEDS'))),
function ($seed) {
return $seed !== '';
}
)
);

$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis.cluster' => array(
'seeds' => $redisClusterSeeds,
'password' => getenv('REDIS_HOST_PASSWORD_FILE') ? trim(file_get_contents(getenv('REDIS_HOST_PASSWORD_FILE'))) : (string) getenv('REDIS_HOST_PASSWORD'),
),
);

if (getenv('REDIS_HOST_USER') !== false) {
$CONFIG['redis.cluster']['user'] = (string) getenv('REDIS_HOST_USER');
}
} elseif (getenv('REDIS_HOST')) {
$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
Expand Down
24 changes: 23 additions & 1 deletion 32/fpm-alpine/config/redis.config.php
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Original file line number Diff line number Diff line change
@@ -1,5 +1,27 @@
<?php
if (getenv('REDIS_HOST')) {
if (getenv('REDIS_CLUSTER_SEEDS')) {
$redisClusterSeeds = array_values(
array_filter(
array_map('trim', explode(',', getenv('REDIS_CLUSTER_SEEDS'))),
function ($seed) {
return $seed !== '';
}
)
);

$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis.cluster' => array(
'seeds' => $redisClusterSeeds,
'password' => getenv('REDIS_HOST_PASSWORD_FILE') ? trim(file_get_contents(getenv('REDIS_HOST_PASSWORD_FILE'))) : (string) getenv('REDIS_HOST_PASSWORD'),
),
);

if (getenv('REDIS_HOST_USER') !== false) {
$CONFIG['redis.cluster']['user'] = (string) getenv('REDIS_HOST_USER');
}
} elseif (getenv('REDIS_HOST')) {
$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
Expand Down
24 changes: 23 additions & 1 deletion 32/fpm/config/redis.config.php
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,27 @@
<?php
if (getenv('REDIS_HOST')) {
if (getenv('REDIS_CLUSTER_SEEDS')) {
$redisClusterSeeds = array_values(
array_filter(
array_map('trim', explode(',', getenv('REDIS_CLUSTER_SEEDS'))),
function ($seed) {
return $seed !== '';
}
)
);

$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis.cluster' => array(
'seeds' => $redisClusterSeeds,
'password' => getenv('REDIS_HOST_PASSWORD_FILE') ? trim(file_get_contents(getenv('REDIS_HOST_PASSWORD_FILE'))) : (string) getenv('REDIS_HOST_PASSWORD'),
),
);

if (getenv('REDIS_HOST_USER') !== false) {
$CONFIG['redis.cluster']['user'] = (string) getenv('REDIS_HOST_USER');
}
} elseif (getenv('REDIS_HOST')) {
$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
Expand Down
24 changes: 23 additions & 1 deletion 33/apache/config/redis.config.php
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,27 @@
<?php
if (getenv('REDIS_HOST')) {
if (getenv('REDIS_CLUSTER_SEEDS')) {
$redisClusterSeeds = array_values(
array_filter(
array_map('trim', explode(',', getenv('REDIS_CLUSTER_SEEDS'))),
function ($seed) {
return $seed !== '';
}
)
);

$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis.cluster' => array(
'seeds' => $redisClusterSeeds,
'password' => getenv('REDIS_HOST_PASSWORD_FILE') ? trim(file_get_contents(getenv('REDIS_HOST_PASSWORD_FILE'))) : (string) getenv('REDIS_HOST_PASSWORD'),
),
);

if (getenv('REDIS_HOST_USER') !== false) {
$CONFIG['redis.cluster']['user'] = (string) getenv('REDIS_HOST_USER');
}
} elseif (getenv('REDIS_HOST')) {
$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
Expand Down
24 changes: 23 additions & 1 deletion 33/fpm-alpine/config/redis.config.php
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,27 @@
<?php
if (getenv('REDIS_HOST')) {
if (getenv('REDIS_CLUSTER_SEEDS')) {
$redisClusterSeeds = array_values(
array_filter(
array_map('trim', explode(',', getenv('REDIS_CLUSTER_SEEDS'))),
function ($seed) {
return $seed !== '';
}
)
);

$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis.cluster' => array(
'seeds' => $redisClusterSeeds,
'password' => getenv('REDIS_HOST_PASSWORD_FILE') ? trim(file_get_contents(getenv('REDIS_HOST_PASSWORD_FILE'))) : (string) getenv('REDIS_HOST_PASSWORD'),
),
);

if (getenv('REDIS_HOST_USER') !== false) {
$CONFIG['redis.cluster']['user'] = (string) getenv('REDIS_HOST_USER');
}
} elseif (getenv('REDIS_HOST')) {
$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
Expand Down
24 changes: 23 additions & 1 deletion 33/fpm/config/redis.config.php
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,27 @@
<?php
if (getenv('REDIS_HOST')) {
if (getenv('REDIS_CLUSTER_SEEDS')) {
$redisClusterSeeds = array_values(
array_filter(
array_map('trim', explode(',', getenv('REDIS_CLUSTER_SEEDS'))),
function ($seed) {
return $seed !== '';
}
)
);

$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis.cluster' => array(
'seeds' => $redisClusterSeeds,
'password' => getenv('REDIS_HOST_PASSWORD_FILE') ? trim(file_get_contents(getenv('REDIS_HOST_PASSWORD_FILE'))) : (string) getenv('REDIS_HOST_PASSWORD'),
),
);

if (getenv('REDIS_HOST_USER') !== false) {
$CONFIG['redis.cluster']['user'] = (string) getenv('REDIS_HOST_USER');
}
} elseif (getenv('REDIS_HOST')) {
$CONFIG = array(
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
Expand Down
4 changes: 4 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -290,6 +290,10 @@ To use Redis for memory caching as well as PHP session storage, specify the foll
- `REDIS_HOST_USER` (not set by default) Optional username for Redis, only use for external Redis servers that require a user.
- `REDIS_HOST_PASSWORD` (not set by default) Redis password

For Redis Cluster, set the seed list as a comma-separated list of host:port pairs. When `REDIS_CLUSTER_SEEDS` is set, Redis Cluster config is used instead of `REDIS_HOST`.

- `REDIS_CLUSTER_SEEDS` (not set by default) Comma-separated list of cluster seeds, e.g. `redis-1:6379,redis-2:6379,redis-3:6379`

Check the [Nextcloud documentation](https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/caching_configuration.html) for more information.

### E-mail (SMTP) Configuration
Expand Down