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memcached v0.1.0

Databases

Memcached — a high-performance, in-memory key/value cache for speeding up dynamic web apps by alleviating database load. Deployed as a host-networked Nomad service; purely in-memory, no persistence.

nomad-pack run memcached --registry nomploy

Source ↗ Project ↗ ★ 14.3k

1 task cache 11211 image memcached:alpine
Variables 8
values.hcl

Save as values.hcl, edit, then run:

nomad-pack run memcached -f values.hcl --registry nomploy
# The name of the Nomad job.
job_name = "memcached"

# The Nomad namespace to deploy into.
namespace = "default"

# The datacenters to deploy to.
datacenters = ["*"]

# The Memcached container image.
image = "memcached:alpine"

# Host port Memcached listens on.
port = 11211

# Max memory for the cache, in MB (memcached -m). Items are evicted (LRU) when full.
memory_limit = 256

# Placement constraints. On a nomploy cluster: attribute = "$${meta.nomploy_control_plane}", operator = "=", value = "true".
constraints = []

# The task resources. Give memory headroom above memory_limit.
resources = {
    cpu    = 200
    memory = 320
  }
NameTypeDefaultDescription
job_name string 
"memcached"
 The name of the Nomad job.
namespace string 
"default"
 The Nomad namespace to deploy into.
datacenters list 
["*"]
 The datacenters to deploy to.
image string 
"memcached:alpine"
 The Memcached container image.
port number 
11211
 Host port Memcached listens on.
memory_limit number 
256
 Max memory for the cache, in MB (memcached -m). Items are evicted (LRU) when full.
constraints list 
[]
 Placement constraints. On a nomploy cluster: attribute = "$${meta.nomploy_control_plane}", operator = "=", value = "true".
resources object 
{
    cpu    = 200
    memory = 320
  }
 The task resources. Give memory headroom above memory_limit.
Readme

memcached

Memcached — a high-performance, distributed in-memory key/value cache, commonly used to speed up dynamic web apps by caching query results and objects. Host-networked Nomad service; purely in-memory (nothing persists).

Usage

nomad-pack registry add nomploy github.com/Nomploy/nomad-packs
nomad-pack run memcached --registry nomploy

In nomploy: create a Compose service, type Nomad Pack, pack memcached, custom registry github.com/Nomploy/nomad-packs, then Deploy.

Point your app's memcached client at <node-ip>:11211.

Key variables

Variable Default Notes
image memcached:alpine Pin a tag in production.
port 11211 Listen port.
memory_limit 256 Max cache size in MB (-m); LRU eviction when full.
constraints [] Placement.
resources cpu 200 / mem 320 Keep task memory above memory_limit.

Notes