Expected behavior
expected to be able to resize the disk of nodes
or at least have Docker use the local SSD of the VMs instead of default 29.4GB disk space.
Actual behavior
all nodes are in the form of VMSS, which use Azure Storage Account.
There’s not an Azure “disk” mounted with the nodes (ie. VMs), hence unable to be re-sized.
Additional Information
Since I launched with Azure VM type D5_V2 which has 800 GB local SSD.
when I run df -h , I can see the 800 GB is /dev/sdb1 and mounted on /mnt/resource.
question is… that is not what Docker is using…
docker is using /dev/sda1.
how do I make all nodes use their actual local SSD? (the /dev/sdb1)
swarm-worker000004:~$ df -h
Filesystem Size Used Available Use% Mounted on
overlay 29.4G 1.4G 26.5G 5% /
tmpfs 27.5G 4.0K 27.5G 0% /dev
tmpfs 27.5G 0 27.5G 0% /sys/fs/cgroup
/dev/sda1 29.4G 1.4G 26.5G 5% /home
tmpfs 27.5G 158.3M 27.3G 1% /mnt
tmpfs 27.5G 158.3M 27.3G 1% /etc
shm 27.5G 0 27.5G 0% /dev/shm
tmpfs 27.5G 158.3M 27.3G 1% /lib/firmware
tmpfs 27.5G 158.3M 27.3G 1% /lib/modules
/dev/sda1 29.4G 1.4G 26.5G 5% /var/log
/dev/sda1 29.4G 1.4G 26.5G 5% /etc/ssh
/dev/sda1 29.4G 1.4G 26.5G 5% /etc/hosts
/dev/sda1 29.4G 1.4G 26.5G 5% /etc/hostname
/dev/sda1 29.4G 1.4G 26.5G 5% /etc/resolv.conf
tmpfs 5.5G 324.0K 5.5G 0% /var/run/docker.sock
/dev/sda1 29.4G 1.4G 26.5G 5% /var/lib/waagent
tmpfs 27.5G 158.3M 27.3G 1% /usr/local/bin/docker
/dev/sdb1 800.0G 191.7M 799.8G 0% /mnt/resource
Steps to reproduce the behavior
-
set up Docker Swarm with the official docker template (edge version)
https://docs.docker.com/docker-for-azure/#prerequisites -
ssh into any node and run
df -h -
finds docker not using the local SSD of VM, and the disk each node is using is only 29.4GB ( /dev/sda1 ) which runs out immediately after pulling a few images.