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With ProxmoxVE, it is necessary to prepare your own virtual machine image templates, so that importing virtual machine templates directly can save a lot of time every time you use some commonly used systems. Here I record the process of making a template for the centos7 virtual machine.

The virtual machine template uses minimal minimization installation mode, 1 network card DHCP mode, 1 hard disk 32G CPU 1 core. Install the net-tools package (so that it can use the ifconfig command), the docker package.

First, upload and install the image ISO in ProxmoxVE's web management interface, and then create a virtual machine. The creation of a basic virtual machine is not described in detail here.

After installing the centos7 basic virtual machine, go to the system to install the net-tools package (so that it can use the ifconfig command), docker package, vim package, wget package, as follows:

Yum install-y net-tools docker vim wget

You need to modify the parameter selinux-enabled=false of the configuration file / etc/sysconfig/docker, as follows:

Vi / etc/sysconfig/dockerOPTIONS='--selinux-enabled=false-- log-driver=journald-- signature-verification=false'if [- z "${DOCKER_CERT_PATH}"]; then DOCKER_CERT_PATH=/etc/dockerfi

If you do not modify the above parameter, there will be "Error starting daemon: SELinux is not supported with the overlay2 graph driver on this kernel." Report an error

Enable: systemctl enable docker & & systemctl start docker after installation and configuration of docker

After that, shut down the virtual machine and turn the virtual machine convert into a template, so that a custom centos7 virtual machine template is generated.

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