● Create a volume for storage on the manager node
sudo docker volume create volume1
volume1
sudo docker volume ls
DRIVER VOLUME NAME
<...>
local volume1
● Use the volume to create a replicated service
sudo docker service create -d --replicas=4 --name replicated-service --mount source=volume1,target=/app nginx:latest
k57ivgvx1xg8yrlyzuv86lp9m
sudo docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
k57ivgvx1xg8 replicated-service replicated 4/4 nginx:latest
sudo docker inspect replicated-service | grep volume1
"Source": "volume1",
sudo docker service ps replicated-service
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
kak3vsjwpws0 replicated-service.1 nginx:latest ip-172-31-0-113 Running Running 2 seconds ago
bei8zr7ji609 replicated-service.2 nginx:latest ip-172-31-0-113 Running Running 2 seconds ago
w80hczbylomw replicated-service.3 nginx:latest ip-172-31-15-10 Running Running 2 seconds ago
i14joxpsh8i0 replicated-service.4 nginx:latest ip-172-31-8-58 Running Running 2 seconds ago
● Inspect worker nodes accessing the same volume for storage across cluster nodes
sudo docker inspect kak3vsjwpws0 | grep volume1
"Source": "volume1",
sudo docker inspect bei8zr7ji609 | grep volume1
"Source": "volume1",
sudo docker inspect w80hczbylomw | grep volume1
"Source": "volume1",
sudo docker inspect i14joxpsh8i0 | grep volume1
"Source": "volume1",
#check from the node
sudo docker volume ls
DRIVER VOLUME NAME
local volume1
sudo docker inspect volume1
[
{
"CreatedAt": "2022-06-09T17:20:23Z",
"Driver": "local",
"Labels": null,
"Mountpoint": "/var/lib/docker/volumes/volume1/_data",
"Name": "volume1",
"Options": null,
"Scope": "local"
}
]
sudo docker service rm k57ivgvx1xg8
k57ivgvx1xg8
sudo docker volume rm volume1
volume1
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