We have got our application running in the cloud and wanted to implement SSL ( https ) for the requests. We had previously thought it as an expensive affair as the certificate authority like verisign charges decent amount per year. That’s when we came across letsencrypt.org which is a opensource and free certificate authority sponsored by tech giants like cisco.
They provide easy and intuitive methods to generate free certificates for any number for websites and sub domains. In this post, I am going to explain implementing https for a site running tomcat 8.
ELK is a software stack that can help us combine all the logs from different systems and then analyze , monitor and evaluate in a single dashboard. The ‘ELK’ is an acronym made with the first letters of the components in it. Those are ‘Elasticsearch’,’Logstash’ and Kibana.
We are extensively using the Amazon EC2 instances for hosting our applications and require setup of the communication between two of more instances for file copy or service discovery. In this post, I am going to show how to setup two instances to communicate each other and do a SCP ( Secure copy from one instance to another ).
Continuous Integration ( CI ) is a step forward in the software development life cycle targeted for faster delivery and early detection of issues. CI requires integration of the code to main repository at least once daily. This demands an automated deployment process which would generate the build and deploy to the container with the latest code changes of stable branch. We can achieve this automation using a CI server and Jenkins is one of most popular tool in this category.
In this post, I will be discussing the steps for setting up Jenkins and configuring auto deployment.
I have been setting up our servers in Amazon AWS and found that installing JDK is not as straightforward as I thought it would be 🙂
I had to do some googling before I could settle down on a method to setup and run tomcat 8 using jdk 1.8 in centos. Putting the steps below for reference to anyone who is trying to achieve the same in AWS: Keep reading