ubuntu/memcached

ubuntu/memcached is a rock for Memcached maintained by https://canonical.com/.

Memcached is a high-performance, distributed memory object caching system.

This image is a ***ed Ubuntu rock. It contains a minimal Memcached installation and the necessary tools to run and manage Memcached instances.

\https://memcached.org/%5C]

Tags and Architectures

NOTE: These tags follow a specific naming convention that respects the concept of channels.

View deprecated tags

Tags		Support ended on	Upgrade Path
1.6-25.04_beta	aliases 1.6-25.04_edge, edge, latest	01/2026	-
1.6-24.10_beta	aliases 1.6-24.10_edge	07/2025	-
1.6-23.10_beta	aliases 1.6-23.10_edge	07/2024	-
1.6-23.04_beta	aliases 1.6-23.04_edge	01/2024	-
1.6-22.10_beta	aliases 1.6-22.10_edge	07/2023	-
1.6-21.10_beta	aliases 1.6-21.10_edge	07/2022	-
1.6-21.04_beta	aliases 1.6-21.04_edge	01/2022	-
1.5-20.04_beta	aliases 1.5-20.04_edge	05/2025	-

Get started

This rock's entrypoint is Pebble, a container-optimized init process that enables the orchestration of a collection of local service processes as an organized set.

\https://documentation.ubuntu.com/pebble/%5C]

Inspect

To view the https://documentation.ubuntu.com/rockcraft/en/latest/reference/rockcraft-yaml/#services and https://documentation.ubuntu.com/rockcraft/latest/reference/rockcraft-yaml/#checks defined in this rock:

sh
docker run --rm ubuntu/memcached:1.6-25.04_beta plan

Run

To run this rock, use any of the usual container runtimes, for example, docker:

sh
docker run --name memcached-container \
    -p 11211:11211 \
    ubuntu/memcached:1.6-25.04_beta

Access your Memcached server at localhost:11211

Get instance stats:

bash
printf "stats
" | nc -q 1 -w 1 127.0.0.1 11211

Write and read a value:

bash
printf "set my_key 0 60 11
hello world
" | nc -q 1 127.0.0.1 11211
printf "get my_key
" | nc -q 1 127.0.0.1 11211 | grep "hello world"

Get logs

To view the logs of the running container, run:

sh
docker exec memcached-container pebble logs

Or, for a specific service:

sh
docker exec memcached-container pebble logs <service>

Monitor health checks

Rocks may have predefined health checks that you can list by running:

sh
docker exec memcached-container pebble checks

The overall health of your container can be inspected via:

sh
docker exec memcached-container pebble health

Configuration

Environment variables

Ports

Other configuration options

---

\https://github.com/canonical/memcached-rock/issues%5C] \https://github.com/canonical/memcached-rock%5C]

Canonical is the provider of this container image. It is the user's responsibility to ensure that any use of this image complies with any relevant licenses for all software contained within, as well as with https://canonical.com/legal/intellectual-property-policy.