Docker Administration Part IV Volume Plugin in Docker

How implement Volume Sharing Between 2 Instance Using SSHFS.

VM2 nginx service will be read data in VM1 using SSHFS

The next Step continuous from [Docker Administration]({{ site.url }}/notes/2020/03/07/volume-in-docker/)

and we was create 2 instance in article [Docker Administration]({{ site.url }}/notes/2020/03/05/docker-administration-install-docker/), running again both instance :

vagrant up vm1 vm2

Generate SSH Keygen in both server

ssh-keygen -t rsa

Copy Public Key ssh vm2 to vm1

ssh-copy-id root@vm1

or you can add manually, in vm2

cat /root/.ssh/id_rsa.pub

put the output to vm1 in /root/.ssh/authorized_keys

Modify /etc/hosts

echo -e "192.168.33.10 vm1.roomit.tech vm1 \n 192.168.33.11 vm2.roomit.tech vm2" >> /etc/hosts

Volume Driver

Remote Via SSH to vm1 and cretae directory

vagrant ssh vm1
sudo mkdir /data
sudo chmod 777 /data
exit

Install Plugin SSHFS in vm2

sudo docker plugin install --grant-all-permissions vieux/sshfs #install plugin
sudo docker plugin ls #list plugin
sudo docker plugin disable [PLUGIN ID] #disable plugin
sudo docker plugin set vieux/sshfs sshkey.source=/root/.ssh/ #set path authentication using ssh
sudo docker plugin enable [PLUGIN ID] #enable plugin
sudo docker plugin ls  #list plugin

Create Volume With SSHFS in vm2

sudo docker volume create --driver vieux/sshfs -o sshcmd=root@vm1:/data  -o allow_other sshvolume

Running Container with ssvolume in vm2

sudo docker run -d --name=nginxtest-ssh -p 8090:80 -v sshvolume:/usr/share/nginx/html nginx:latest

Login to vm1 and create index.html

vagrant ssh vm1
sudo sh -c "echo 'Hello, I am roomit' > /data/index.html"
sudo cat /data/index.html
exit

Execution in vm2

sudo docker ps
curl http://localhost:8090

Output:

Hello, I am roomit