It is a newly emerging term in the IT field, which is nothing but a practice that emphasizes the collaboration and communication of both software developers and deployment(operations) team. It focuses on delivering software product faster and lowering the failure rate of releases.
The key aspects or principle behind DevOps is
The core operations of DevOps are
A simpler scripting language will be better for a DevOps engineer. Python seems to be very popular.
DevOps can be helpful to developers to fix the bug and implement new features quickly. It also helps for clearer communication between the team members.
Some of the popular tools for DevOps are
I have used SSH to log into a remote machine and work on the command line. Beside this, I have also used it to tunnel into the system in order to facilitate secure encrypted communications between two untrusted hosts over an insecure network.
My approach to handling revision control would be to post the code on SourceForge or GitHub so everyone can view it. Also, I will post the checklist from the last revision to make sure that any unsolved issues are resolved.
The types of Http requests are
If a Linux-build-server suddenly starts getting slow, you will check for the following three things
RAM related issues, Disk I/O read-write issues, Disk Space related Issues, etc.
Check for Application log file OR application server log file, system performance issues, Web Server Log – check HTTP, tomcat lo, jboss, or WebLogic logs to see if the application server response/receive time is the issues for slowness, Memory Leak of any application
Antivirus related issues, Firewall related issues, Network issues, SMTP server response time issues, etc.
The most important components of DevOps are:
Popular Cloud computing platform used for DevOps implementation are:
Git bisect helps you to find the commit which introduced a bug using binary search.
A build is a method in which the source code is put together to check whether it works as a single unit. In the build creation process, the source code will undergo compilation, inspection, testing, and deployment.
Puppet is a useful project management tool. It helps you to automate administration tasks.
Two-factor authentication is a security method in which the user provides two ways of identification from separate categories.
A canary release is a pattern which reduces the risk of introducing a new version software into the production environment. It is done by making it available in a controlled manner to a subset of the user. Before making it available to the complete user set.
You need to conduct continuous testing to ensure that the new service is ready for production.
A vagrant is a tool which can create and manage virtualized environments for testing and developing software.
Pointer record which is also known as (PTR) is used for reverse DNS lookup.
It is a powerful automation platform which transforms infrastructure into code. In this tool, you can use write scripts that are used to automate processes.
Following are the useful prerequisites for DevOps Implementation:
Here, are essential best practices for DevOps implementation:
SubGit helps you to migrate SVN to Git. It also allows you to build a writable Git mirror of a local or remote Subversion repository.
Some most prominent network monitoring tools are:
When you use a command
it will give detailed output about Unity’s requirements, and if they are met, then your video card can run unity.
To enable startup sound
/usr/bin/canberra-gtk-play—id= "desktop-login"—description= "play login sound"
You can also open it with shortcut key Ctrl+Alt+T.
To open an Ubuntu terminal in a particular directory, you can use custom keyboard short cut.
To do that, in the command field of a new custom keyboard, type genome – terminal – – working – directory = /path/to/dir.