kubeadm-offline-installer

• Upgraded to v1.7.0

Setup a cluster with kubeadm, without internet connections.

Kubeadm is a great way to set up a kubernetes cluster.

But every time I'm setting up a new cluster with it, I have to keep the internet connection, and do something like cat xxx EOF , yum install xxx, when kubeadm finished, I still have to copy config file, ca certs and save the tokens. this is boring, so I composed this playbook, working for minimal CentOS 7, can install a cluster without internet.

Usage

ansible-playbook -i hosts/hosts.sample -u root cluster.yml

1. Download and extract bin package from Releases tab
2. Write down ip in the hosts file, here is a sample in hosts/hosts.sample.
3. Change the variables in group_vars/all.
4. Run the playbook.
5. You can find init/join script in /usr/local/bin.
6. Configuration files are stored in Master node's /etc/kubernetes
7. Enjoy it.

Features

1. Offline.
2. Support for different lvm configuration in CentOS.
3. Calico plugins included.