MooseFS Docker Cluster

This is a basic configuration of a multiple nodes MooseFS cluster based on the Debian Buster Docker image. It consists of a master server, a CGI server, 4 chunk servers, and one client. After a successful installation, you will have a fully working MooseFS cluster to play with its amazing features.

Updates

All moosefs processes are now correctly handling signals.
Metadata and data are now persistent and mounted as volumes.
TEST and PROD moosefs master metadata behavior defined by MFS_ENV variable.
Specify storage size per chunk server (env: SIZE) default not defined. Depends on your local storage free space.
Specify label per chunk server (env: LABEL, default: empty).
Switched to debian:buster as a base image.
Example with 4 chunk servers (labels: M, MB, MB, B).

Cluster configurations

File docker-compose.yml

master 172.20.0.2
CGI http://localhost:9425 on Linux also http://172.20.0.3:9425
metalogger 172.20.0.4
chunkserver1 172.20.0.11, label: M
chunkserver2 172.20.0.12, label: M,B
chunkserver3 172.20.0.13, label: M,B
chunkserver4 172.20.0.14, label: B
client 172.168.20.0.100

Setup

Install Docker with Docker Composer from https://docs.docker.com/compose/install/

Clone MooseFS docker config files:

git clone https://github.com/moosefs/moosefs-docker-cluster
cd moosefs-docker-cluster

Build and run:

docker-compose build
docker-compose up

On Linux OS run docker-compose as root:

sudo -E docker-compose build
sudo -E docker-compose up

You can also run docker-compose in detached mode. All running Docker nodes will run in the background, so Docker console output will be invisible.

sudo -E docker-compose build
sudo -E docker-compose up -d

You can check if instances are running:

docker ps

You should have 1 master, 1 metalogger, 4 chunk servers and 1 client running (first configuration). The expected output should be similar to this:

CONTAINER ID        IMAGE                                  COMMAND                  CREATED             STATUS              PORTS                    NAMES
abf5910b53bc        moosefsdockercluster_mfsclient         "mfsmount -f /mnt/mo…"   7 minutes ago       Up 7 minutes                                 mfsclient
7a1152cc31f3        moosefsdockercluster_mfschunkserver3   "chunkserver.sh"         7 minutes ago       Up 7 minutes        9422/tcp                 mfschunkserver3
b8c2cd770187        moosefsdockercluster_mfschunkserver2   "chunkserver.sh"         7 minutes ago       Up 7 minutes        9422/tcp                 mfschunkserver2
100f20683b3a        moosefsdockercluster_mfschunkserver1   "chunkserver.sh"         7 minutes ago       Up 7 minutes        9422/tcp                 mfschunkserver1
68ffb70ab361        moosefsdockercluster_mfschunkserver4   "chunkserver.sh"         7 minutes ago       Up 7 minutes        9422/tcp                 mfschunkserver4
82a2c3bd831d        moosefsdockercluster_mfsmetalogger     "metalogger.sh"          7 minutes ago       Up 7 minutes                                 mfsmetalogger
05736e4bdd3c        moosefsdockercluster_mfscgi            "mfscgiserv -f"          7 minutes ago       Up 7 minutes        0.0.0.0:9425->9425/tcp   mfscgi
e83a1fb062a1        moosefsdockercluster_mfsmaster         "master.sh"              7 minutes ago       Up 7 minutes        9419-9421/tcp            mfsmaster

Attach/detach to/from container

For example, if you like to attach to the client node execute this command:

docker exec -it mfsclient bash

To detach from container just press Ctrl + d keys.

MooseFS client

MooseFS filesystem is mounted at /mnt/moosefs. If everything is ok you should see this ASCII art:

cat /mnt/moosefs/.mooseart
 \_\            /_/
    \_\_    _/_/
        \--/
        /OO\_--____
       (__)        )
        ``\    __  |
           ||-'  `||
           ||     ||
           ""     ""

CGI

The CGI is available here: http://localhost:9425 Also on Linux OS CGI container is available at IP address http://172.20.0.3:9425 (be aware of a local 172.20.0.* network).

Persistence

Your MooseFS Docker cluster is persistent. It means all files you created in the /mnt/moosefs folder will remain there even after turning containers off. All data and metadata files are stored in the host ./data directory.