This tutorial is designed to help you get the most out of OpenShift Online on a Windows machine. In addition to the web interface, OpenShift provides client tools (rhc) to help you create and manage your applications.
OpenShift allows a choice of environments (UI, command line, IDE), but in order to get the most out of your applications, you’ll want to at least use the OpenShift client tools (rhc). On a Windows machine, this requires you to also install Ruby and Git.
If you just want to log in and create your first application, you can simply log into the web console (requires login). However, you won’t be able to make changes to your application until you’ve followed the instructions below.
Installing the client tools (rhc) on Windows requires three steps:
Step 1: Install Ruby with RubyInstaller
Step 2: Install Git version control
Step 3: Install the rhc Ruby gem
|Before you can install the rhc client tools, you must download and install Ruby and Git on your system.|
|Sufficient privileges are required to install software on Windows systems. Depending on specific user permissions, disabling the User Account Control (UAC) on Windows Vista or Windows 7 operating systems may be necessary.|
RubyInstaller provides the best experience for installing Ruby on Windows.
|The Client Tools are known to work well with Ruby versions 1.9.3 and 2.0.0 on Windows, based on the community feedback. We recommend downloading and installing one of those versions.|
Download one of the preferred versions from the RubyInstaller downloads and launch it.
|During the installation you can accept all of the defaults, but it is mandatory that you select the Add Ruby executables to your PATH check box in order to run Ruby from the command line (see image below).|
After the installation is completed, to verify that the installation is working open a Command Prompt and run:
C:\> ruby -v
You should get a response with your installed Ruby verion:
ruby 1.9.3p550 (2014-10-27) [i386-mingw32]
If the Ruby version message does not display, the Ruby executable may not have been added to the path. Restart the installation process and ensure the Add Ruby executables to your PATH check box is selected as in the image above.
The next step is to install Git for Windows so that you can synchronise your local application source and your OpenShift application.
Using Git for Windows will greatly simplify the setup and management of SSH keys using basic rhc commands. It will also allow you to SSH into your applications without the need for additional tools.
Download and install the latest version of Git for Windows.
|During the installation process, select the Run Git from the Windows Command Link Prompt checkbox so that Git can be run from the command line. Also, select Checkout Windows-style, commit Unix-style line endings, which is the recommended setting. Finally, in order to set up rhc from Git Bash, select Use Windows' default console window to configure the terminal emulator for Git Bash. You can set up rhc from the Windows Powershell or Ruby Command Prompt if you prefer the MinTTY terminal emulator.|
After the installation is completed, to verify that Git is correctly configured run:
C:\> git --version
If Git was installed correctly, you should see the installed version number:
git version 1.9.4.msysgit.2
After Ruby and Git are correctly installed, use the RubyGems package manager (included in Ruby) to install the OpenShift client tools:
C:\> gem install rhc
RubyGems downloads and installs the rhc gem from www.rubygems.org/gems/rhc.
After installation is complete, open the Command Prompt and run:
C:\> rhc setup
The OpenShift interactive setup wizard displays and prompts you to complete the rest of the process.
You’ll be prompted for your OpenShift username and password:
Login to openshift.redhat.com: firstname.lastname@example.org Password: password
You are then prompted to generate an authorization token. Answering yes stores a token in your home directory to be used on subsequent requests. When it expires, you are prompted for your password again.
OpenShift can create and store a token on disk which allows to you to access the server without using your password. The key is stored in your home directory and should be kept secret. You can delete the key at any time by running 'rhc logout'. Generate a token now? (yes|no) yes Generating an authorization token for this client ... lasts about 1 day
After creating a configuration file, setup will configure SSH keys so that your system can remotely connect to your applications, including deploying your applications using Git:
No SSH keys were found. We will generate a pair of keys for you. Created: C:\Users\User1\.ssh\id_rsa.pub
After the new SSH keys are generated, the public key, id_rsa.pub, must be uploaded to the OpenShift server to authenticate your system to the remote server. Enter a name to use for your key, or leave it blank to use the default name. In the following example the default name is used.
Your public ssh key must be uploaded to the OpenShift server to access code. Upload now? (yes|no) yes Since you do not have any keys associated with your OpenShift account, your new key will be uploaded as the 'default' key Uploading key 'default' from C:\Users\User1\.ssh\id_rsa.pub ... done
After verifying that Git is installed, you will be asked to set up your domain if you don’t already have one:
Checking for a domain ... none Your domain is unique to your account and is the suffix of the public URLs we assign to your applications. You may configure your domain here or leave it blank and use 'rhc domain create' to create a domain later. You will not be able to create applications without first creating a domain. Please enter a domain (letters and numbers only) |<none>|: MyDomain Your domain name 'MyDomain' has been successfully created
Finally, the setup wizard verifies whether any applications exist under your domain. Any applications created with the Management Console are displayed here. In the example below, no applications have been created. In this case the setup wizard shows the types of applications that can be created with the associated commands. The setup wizard then completes by displaying the current gear consumption along with the gear sizes available to the given user.
Checking for applications ... none Run 'rhc app create' to create your first application. Do-It-Yourself rhc app create <app name> diy-0.1 JBoss Application Server 7.1 rhc app create <app name> jbossas-7 JBoss Enterprise Application Platform 6.0 rhc app create <app name> jbosseap-6.0 Jenkins Server 1.4 rhc app create <app name> jenkins-1.4 Node.js 0.10 rhc app create <app name> nodejs-0.10 PHP 5.3 rhc app create <app name> php-5.3 PHP 5.4 rhc app create <app name> php-5.4 Perl 5.10 rhc app create <app name> perl-5.10 Python 2.6 rhc app create <app name> python-2.6 Python 2.7 Community Cartridge rhc app create <app name> python-2.7 Python 3.3 Community Cartridge rhc app create <app name> python-3.3 Ruby 1.8 rhc app create <app name> ruby-1.8 Ruby 1.9 rhc app create <app name> ruby-1.9 Tomcat 6 (JBoss EWS 1.0) rhc app create <app name> jbossews-1.0 Tomcat 7 (JBoss EWS 2.0) rhc app create <app name> jbossews-2.0 Zend Server 5.6 rhc app create <app name> zend-5.6 You are using 0 of 3 total gears The following gear sizes are available to you: small Your client tools are now configured.
You are now ready to create and manage an application using OpenShift.
If you cannot run OpenShift client tools at this point, please visit the Help Center for more assistance.
Now that you have rhc installed and configured, you are ready to create an application.
You can create a new application with either the management console or the client tools.
You can see the full list of application types and create a new application through the OpenShift web console: Create an Application (requires login)
Alternatively, you can use rhc to create an application using the following command:
C:\> rhc app create <app_name> <web_cartridge_name>
For example, to create a PHP 5.4 application named myfirstphpapp, use the following command:
C:\> rhc app create myfirstphpapp php-5.4
There are a number of options available when creating a new application. To learn more about creating an application on OpenShift, see Creating Applications.
OpenShift uses Git to manage application deployments on OpenShift. You make code changes on your local machine, check those changes in locally, and then push those changes to OpenShift.
Every OpenShift application you create has its own Git repository that only you can access.
If you create your application from the command line, rhc will automatically download a copy of that repository (Git calls this 'cloning') to your local system.
If you create an application from the web console, you’ll need to tell Git to clone the repository. Find the Git URL from the application page, and then run:
C:\> git clone <git_url> <directory to create>
Once you make changes to your local repository, you need to add and commit those changes -
add tells Git that a file or set of files will become part of a larger check in, and
commit completes the check in. Git requires that each commit have a message to describe it.
C:\> git add . C:\> git commit -m "A change to my application"
Finally, you’re ready to send your changes to your application - you’ll 'push' these changes with:
C:\> git push
The output of the push command will contain information from OpenShift about your deployment.
OpenShift allows you to remotely access your application’s gears in order to perform various tasks such as troubleshooting, working with log files, and managing environment variables
Once you have created an application and set up your SSH keys (either by
rhc setup or manual upload), you can SSH into the remote server using the
rhc ssh command.
To SSH into a specific application:
C:\> rhc ssh <app_name>
You should then connect to your application’s primary gear:
********************************************************************* You are accessing a service that is for use only by authorized users. If you do not have authorization, discontinue use at once. Any use of the services is subject to the applicable terms of the agreement which can be found at: https://www.openshift.com/legal ********************************************************************* Welcome to OpenShift shell This shell will assist you in managing OpenShift applications. !!! IMPORTANT !!! IMPORTANT !!! IMPORTANT !!! Shell access is quite powerful and it is possible for you to accidentally damage your application. Proceed with care! If worse comes to worst, destroy your application with "rhc app delete" and recreate it !!! IMPORTANT !!! IMPORTANT !!! IMPORTANT !!! Type "help" for more info.
Now that you’re connected, you can use the OpenShift shell to explore and modify your application.
Once you have SSHed into your application, you can use many common Linux Commands.
In addition to Linux commands, the following commands are available to help control your OpenShift application and environment:
gear control your application (start, stop, restart, etc) or deps with --cart (gear start --cart mysql-5.1) tail_all tail all log files export list available environment variables (1) rm remove files / directories ls list files / directories ps list running applications kill kill running applications mysql interactive MySQL shell mongo interactive MongoDB shell psql interactive PostgreSQL shell quota list disk usage
|1||Find more information on using Environment Variables|
This guide has just scratched the surface of what you can do with OpenShift Online. Feel free to explore other topics under Managing Your Applications or visit one of the technology-specific tutorials below:
|Language||More Specific Tutorials|