How to specify the cache size?

[ncri]

I don't see any info about that in the readme.

Thanks,
Nico

[ncri]

Any info on this?

[ncri]

Okay, I see it's hardcoded to 64. I guess we could allow optionally passing it in on create. Thought's?

[josegonzalez]

Works for me. PRs welcome.

[josegonzalez]

Proposal for how this might work:

# via env var
export MEMCACHED_MEMORY="64"
dokku memcached:create lolipop

# via flag
dokku memcached:create lolipop --memory 64

We'd need to store that value in a file somewhere.

[josegonzalez]

Closing in favor of a rather large rfc here: dokku/dokku-redis/issues/64

[Friss]

@josegonzalez Any chance the configuration outlined in the RFC could be implemented for memcached?

[josegonzalez]

Probably, though it hasn't been implemented anywhere due to lack of time. If you'd like to sponsor the development of that, please contact me via irc or slack (I'm savant on both).

[josegonzalez]

This is now implemented.

[ncri]

Great, thanks!

[jarthod]

Was looking for this too, apparently it's implemented but it's not in the Readme, also I don't see the size in memcached:info, is this because it's alpha version still or can we use it and add some documentation? (happy to contribute of course)

Thanks!

[josegonzalez]

Docs aren't auto-generated from the code and I'm lazy about fixing that - maybe someday! - but for now you can try:

dokku memcached:help create

To see how to configure that sort of flag.

[jarthod]

How nice, didn't saw that command ^^ though it doesn't say anything about the memory flag either so the code is not even in the code I suppose?

> dokku memcached:help create
usage: dokku memcached:create <service> [--create-flags...]

create a Memcached service

arguments:

service   service to run command against

flags:

-C|--custom-env "USER=alpha;HOST=beta"   semi-colon delimited environment variables to start the service with
-i|--image IMAGE                         the image name to start the service with
-I|--image-version IMAGE_VERSION         the image version to start the service with
-p|--password PASSWORD                   override the user-level service password
-r|--root-password PASSWORD              override the root-level service password

examples:

create a memcached service named lolipop

    dokku memcached:create lolipop

you can also specify the image and image version to use for the service.
it *must* be compatible with the memcached image.

    export MEMCACHED_IMAGE="memcached"
    export MEMCACHED_IMAGE_VERSION="1.5.20"
    dokku memcached:create lolipop

you can also specify custom environment variables to start
the memcached service in semi-colon separated form.

    export MEMCACHED_CUSTOM_ENV="USER=alpha;HOST=beta"
    dokku memcached:create lolipop

[josegonzalez]

Seems missing from the docs, but try --memory.

[jarthod]

Sure, it works, but I shall try to improve the documentation then if you don't mind.
Is it only in:

• https://github.com/dokku/dokku-memcached/blob/master/subcommands/create
• https://github.com/dokku/dokku-memcached/blob/master/subcommands/clone
• https://github.com/dokku/dokku-memcached/blob/master/subcommands/upgrade
  ?

Something like:

  #F -m|--memory MEMORY, in MB, override the cache size (default to 64MB)

?

[josegonzalez]

Sounds right.