Thursday, October 22, 2015

Using Ansible to configure an Oracle Linux 7.1 server with Oracle 12c R1 Enterprise Edition Database


Ansible is the leading tool for configuring software and various parameters on servers. It does not require agents and other software installed on nodes like other popular tools (puppet or chef). Its also modular and already have hundreds of modules that help us configure our servers in several ways. In this article I will show how we can install an Oracle 12c R1 Database (12.1.0.2) in Oracle Linux 7.1 server. The same Ansible playbook can be used with Redhat Enterprise Linux 7.1 and CentOS 7.1. You can download the code in Github at:

https://github.com/cvezalis/oracledb-ansible




Source code also includes configuration for provision automatically a virtual machine using Vagrant.

Download from Oracle support the Oracle installation files:

- linuxamd64_12102_database_1of2.zip

- linuxamd64_12102_database_1of2.zip

and put them to folder roles/oracle-install/files inside checkout folder

After go into checkout folder and execute :

$ vagrant up 


After a few minutes a virtual machine with Oracle Database will be ready for you without any further configuration. You can access the Enterprise Manager Express using sys/sysdba and “oracle” as password.

https://oradb3.private:5500/em

You can shutdown the virtual machine using:

$ vagrant halt


You can destroy it (delete from disk) using:

$ vagrant destroy

more details at my article here : http://www.nodalpoint.com/devops-ansible-oracle-database-oraclelinux-7-vagrant/

Tuesday, October 13, 2015

Deploy JAX-RS 2.0 REST Webservice on WebLogic 12c

Creating a JAX-RS 2.0 (REST) style web service and deploy it to a WebLogic 12.1.3 server deployment will fail. The reference implementation of JAX-RS 2.0 library is missing from server. WebLogic 12c comes with Jersey 2.5.1 jar installed on filesystem but not deployed by default on WebLogic.

Wednesday, October 7, 2015

VMware workstation 11 on Ubuntu 15.04 high cpu utilization solved

VMware 11 workstation on Ubuntu with windows guests freezes from time to time with very high cpu utilization. The process vmware-vmx and khugepaged get 100% cpu time for a couple of seconds. The khugepaged is the process that configures the transparent hugepages. When i disable the transparent hugepages windows guest run without freezes again. To disable it on every operating system start up i put in /etc/rc.local

Friday, October 2, 2015

Ansible playbook to provision a WebLogic Fusion Middleware Domain on RHEL/CentOS 7

I created a playbook for Ansible to provision a WebLogic server, install Fusion Middleware Infrastructure software and create a Domain with a managed server in a RHEL 7 Linux System. (CentOS 7 and Oracle Linux 7 are supported too)