https://wenhan.blog/en/tags/openshift/ Recent content in OpenShift on Wenhan blog Hugo -- gohugo.io en-US Thu, 01 Feb 2018 15:46:56 +0000 https://wenhan.blog/en/posts/20180201_how-to-disable-ipv6-inside-a-container-pod-in-openshift/ Thu, 01 Feb 2018 15:46:56 +0000 https://wenhan.blog/en/posts/20180201_how-to-disable-ipv6-inside-a-container-pod-in-openshift/ Although the container/pod in OpenShift transfer data by IPv4 protocol, and you do not need to worry about the setting of IPv6. But in some case people want to disable IPv6 inside the container without effecting other container/pods or host OS. Here is an example of the IPv6 info outputed from a container. 1 2 3 4 5 6 7 8 9 10 11 12 13 [root@ocp37 ~]# oc exec django-ex-4-6gmsj -- ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127. https://wenhan.blog/en/posts/20170712_openshift-configure-authetication-and-user-agent-using-htpasswd/ Wed, 12 Jul 2017 14:43:47 +0000 https://wenhan.blog/en/posts/20170712_openshift-configure-authetication-and-user-agent-using-htpasswd/ As we Install the OpenShift by Ansible method, identity provider is set to Deny all by default, which will deny access from all users. To allow access for users, you must choose another identity provider and configure the master configuration file. By default, the master configuration file is located at /etc/origin/master/master-config.yaml. OpenShift has several identity providers which can help you to manager user authentication. I will use HTPasswd this time. You can find more information in Configuring Authentication and User Agent https://wenhan.blog/en/posts/20170707_openshift-use-ansible-to-install-openshift-to-multi-nodes/ Fri, 07 Jul 2017 15:32:15 +0000 https://wenhan.blog/en/posts/20170707_openshift-use-ansible-to-install-openshift-to-multi-nodes/ In this article we will show you how to install OpenShift in mutliple nodes using a quick install command, atomic-openshift-installer, which is powered by ansible. Host preparation I use under virtual machines for OpenShift nodes to deploy Type CPU Mem HDD hostname OS Master 1 2 GB 20 GB master.example.com RHEL 7 node 1 2 GB 20 GB node1.example.com RHEL 7 node 1 2 GB 20 GB node2.example.com RHEL 7 Host Registration Note: If you are using other OS but not RHEL, Please go to [# Install necessary packages](# Install necessary packages) to install the packages. https://wenhan.blog/en/posts/20170626_openshift-install-openshift-and-create-first-project-hello-openshift/ Mon, 26 Jun 2017 13:40:40 +0000 https://wenhan.blog/en/posts/20170626_openshift-install-openshift-and-create-first-project-hello-openshift/ Install Linux OS and confirm network setting You need to create a Linux OS machine to install OpenShift. The minimum requirement is CPU Memory hard disk Network x86_64 1 core 2 GB 20 GB IPv4 First you need to install CentOS 7.3, by select minimum setup. After you finish the installation, check your IP address to make sure you have available IP to use. The following example shows the IP address at eth0 is “192.