Install Docker on a clean Centos 8 vps

Note: none of this actually works – just notes for now.

dnf install 'dnf-command(config-manager)'
dnf config-manager --add-repo=
dnf install --nobest docker-ce

# ideally you would install the latest but you'll find missing dependancies
# find which docker versions are available
dnf list docker-ce --showduplicates | sort

# copy the name of the latest version
# will look like
# docker-ce.x86_64            3:19.03.8-3.el7                     docker-ce-stable
# removed the architecture portion (.x86_64) and add the version separated by a dash
dnf install docker-ce-3:19.03.8-3.el7

systemctl disable firewalld
systemctl enable --now docker


source :

Enable on proxmox :

on host node

cat /sys/module/kvm_intel/parameters/nested   # should show N
echo "options kvm-intel nested=Y" > /etc/modprobe.d/kvm-intel.conf
modprobe -r kvm_intel
modprobe kvm_intel
cat /sys/module/kvm_intel/parameters/nested  # should show Y

# restart container
pct stop <container-id>
pct start <container-id>

# check inside container
egrep '(vmx|svm)' --color=always /proc/cpuinfo

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