Deploying to Production
In this section we’ll discuss the procedure of packaging and readying a Shell for deployment in a production environment. This diagram, that we’ve visited before, illustrates the development flow for Shells:
We’ll be concentrating on the last two phases in the above diagram - creating a distributable package and deploying it to the production server.
Creating a distributable package
To create a distributable package which can be imported to CloudShell, run the following from Command Line, make sure you are in the root directory of the Shell project:
This will create two artifacts in the ‘dist’ sub-folder of the Shell project:
- A zip file archive called <shellname>.zip - This is the Shell distributable package
- A folder named offline_requirements - The Python packages required by the Shell. This folder should be used with any offline execution servers, i.e. execution servers where pip will not be able to reach the internet to download the packages specified in requirements.txt
In this section, we will explain how to add an attribute to a specific 2nd Gen shell and customize the attribute’s defaults. This is done using the
SetCustomShellAttribute API method, available in the TestShell XML RPC and CloudShell Automation API.
CloudShell distinguishes between two types of attributes.
- Attributes related to the device or shell, like Firmware Version or Port Speed
- Attributes related to your CloudShell deployment, like Execution Server Selector.
Note that deployment-related attributes are added to the shell by the CloudShell system administrator while attributes related to a device are added to the shell by the shell’s developer.
Notes: The below configurations only apply to attributes that already exist in CloudShell. When upgrading the Shell, these custom attributes and their association with the Shell will not be overwritten.
The required inputs are:
- modelName = The Shell’s model [the Shell name; case-sensitive]
- attributeName = The attribute’s name [case-sensitive]
- defaultValue = The default value
- restrictedValues = [optional] Comma-separated list of possible values
In this example, we are adding an Execution Server Selector attribute named “Domain_ESS” to a Shell named “ExampleShell” with “Test NY” as the default value:
Configuring offline Execution Servers
Before deploying to the production environment, its important to make sure that all Execution Servers will be able to execute the Shell commands, even if they’re configured to offline access and can’t retrieve the Shell dependencies.
If some of the Execution Servers in your production environment are running in offline mode, simply copy the content of the offline_requirements folder to the offline repository folder. The offline repo folder is defined in the Execution Server customer.config file using the PythonOfflineRepositoryPath configuration key. For more information on how to configure the offline Execution Server, consult the relevant CloudShell Documentation.
Deploying to the production CloudShell Server
To deploy the Shell to the production CloudShell server:
- Log in as an administrator.
- Open the Admin menu located on the top of the page, and select Import Package
- Select the Shell zip file created earlier and click Open to import it.
Your Shell should now be ready for use in the production environment.
Each of the shell’s resource levels is defined in the shell standard as a resource family and has a share status. The share status determines whether a specific resource or sub-resource of a particular family can be used in different sandboxes at the same time. A family’s share status is determined by the Locked By Default rule, which when set to True defines the family as unshared. More about family properties can be found in this CloudShell Help article. To find out the share status of a specific family in your shell, have a look at the shell’s standard. For example, the Shell Resource Standard’s Data Model Structure section indicates its families’ settings.