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Troubleshooting Docker Installation on OpenVZ VPS
You've encountered issues while trying to install Docker on your OpenVZ VPS. Despite following the official guide, Docker never started. Let's explore potential solutions.
Check Docker Installation Prerequisites
Ensure that your VPS meets the following prerequisites:
- The operating system is CentOS 6.x or 7.x.
- The kernel supports containers (
CONFIG_CONTAINERS=y). - The system has at least 2GB of RAM.
Update the System
Update your system using the following command:
sudo yum update -y
Install Docker
Install Docker using the following command:
sudo yum install docker -y
Start and Enable Docker Service
Start the Docker service and enable it to run on boot:
sudo service docker start
sudo chkconfig docker on
Check Docker Installation
Verify the installation by checking the Docker version:
docker --version
If Docker is still not working, try the following steps:
-
Remove Docker:
sudo yum remove docker docker-common docker-selinux -
Install required dependencies:
sudo yum install -y yum-utils device-mapper-persistent-data lvm2 -
Add the Docker GPG key:
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo -
Install Docker CE:
sudo yum install docker-ce -
Start and Enable Docker Service
sudo systemctl start docker sudo systemctl enable docker -
Check Docker Installation
docker --version
References
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