#CONVOY PLUGIN ODKCER INSTALL#
#CONVOY PLUGIN ODKCER DRIVERS#
#CONVOY PLUGIN ODKCER DRIVER#

dev/disk/by-label/cloudimg-rootfs 158G 13G 139G 9% /etc/hosts Now I am going to run a 'bash' container to inspect what is happening: $ sudo docker run -it -volume-driver=rbd -volume foo:/mnt/foo ceph/base df -hįilesystem Size Used Avail Use% Mounted on

#CONVOY PLUGIN ODKCER DRIVER#

The driver writes a socket under /run/docker/plugins/rbd.sock, this socket will be used by Docker to perform the necessary actions (create the volume, do the bindmount etc.). Let's start the service: $ sudo rbd-docker-plugin -create -user=docker -pool=docker & I like the fact that the volume plugin can configure the volume for me so I will configure it to do so. $ sudo ceph auth get-or-create client.docker mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=docker' -o /etc/ceph/ Run it!īefore starting the service, I am going to configure Ceph for it: $ sudo ceph osd pool create docker 128 For the purpose of this tutorial, I will run it through stdout. The service can work with systemd with this unit file. automatically, where the plugin will create the image and the filesystem for you.If it does not you should probably configure the plugin to do it for you. This is interesting when you know that the size of each volume can vary. manually, where you have to create the RBD image and put a filesystem on it by yourself.size=20480: RBD Image size to Create (in MB) (default: 20480=20GB)Īs you see, the RBD volume plugin supports several options cluster name, user The volume plugin has 2 different methods to provision volumes: remove=false: Can Remove (destroy) RBD Images (default: false, volume will be renamed zz_name) pool='rbd': Default Ceph Pool for RBD operations plugins='/run/docker/plugins': Docker plugin directory for socket name='rbd': Docker plugin name for use on -volume-driver option mount='/var/lib/docker/volumes': Mount directory for volumes on host fs='xfs': FS type for the created RBD Image (must have mkfs.type) create=false: Can auto Create RBD Images $ go get /yp-engineering/rbd-docker-plugin

#CONVOY PLUGIN ODKCER INSTALL#

Let's start by installing the necessary components: $ sudo apt-get install -y golang librados-dev librbd-dev ceph-common xfsprogs Thus I don't much knowledge about the others and I can not provide you with much feedback. I have to admit that the way I chosed to start with the driver from yp-engineering was really arbitrary.

#CONVOY PLUGIN ODKCER DRIVERS#

Get Dockerįirst make sure you at least have the 1.8 version of Docker, if not you can simply run the following: $ curl -sSL | shĪs mentioned in the introduction, there are currently 3 different drivers that aim to do the same thing :): Several volume plugins are available but today I will be introducing the Ceph RBD ones (yes there are currently 3 different drivers). Docker 1.8 was just released a week ago and with it came the support for volume plugin.

Convoy plugin odkcer