Supported tags and respective
Where to file issues:
the Docker Community
Supported Docker versions:
the latest release (down to 1.6 on a best-effort basis)
What is Memcached?
Memcached is a general-purpose distributed memory caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source (such as a database or API) must be read.
Memcached's APIs provide a very large hash table distributed across multiple machines. When the table is full, subsequent inserts cause older data to be purged in least recently used order. Applications using Memcached typically layer requests and additions into RAM before falling back on a slower backing store, such as a database.
How to use this image
$ docker run --name my-memcache -d arm32v7/memcached
Start your memcached container with the above command and then you can connect you app to it with standard linking:
$ docker run --link my-memcache:memcache -d my-app-image
The memcached server information would then be available through the ENV variables generated by the link as well as through DNS as
How to set the memory usage for memcached
$ docker run --name my-memcache -d arm32v7/memcached memcached -m 64
This would set the memcache server to use 64 megabytes for storage.
For infomation on configuring your memcached server, see the extensive wiki.
View license information for the software contained in this image.
As with all Docker images, these likely also contain other software which may be under other licenses (such as Bash, etc from the base distribution, along with any direct or indirect dependencies of the primary software being contained).
Some additional license information which was able to be auto-detected might be found in the
As for any pre-built image usage, it is the image user's responsibility to ensure that any use of this image complies with any relevant licenses for all software contained within.