Template Library CLI

This section explains the installation and the usage of the Template Library Command Line Interface (CLI).

Prerequisites

Template Library CLI requires python 3 (and a virtual environment). In a typical modern Linux environment, we should already be set. In Ubuntu, however, we might need to run the following commands:

$ sudo apt update
$ sudo apt install -y python3-venv python3-wheel python-wheel-common

Installation

The only thing that needs to be installed if you wish to use Template Library from the command line is the Template library CLI. The CLI tool goes by the name xopera-template-library and you can install it as a Python package from PyPI with the command below (The simplest way to test the package is to install it into a virtual environment):

$ python3 -m venv .venv && . .venv/bin/activate
$ pip install xopera-template-library

The development version of the package is available on Test PyPI and the installation goes as follows.

(.venv) $ pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple/ xopera-template-library

Note

xopera-template-library is a Python pip package so it is published on Python Package Index (PyPI) where you can find more information about this package versions and updates. There is also a development releases available at Test PyPI instance that are released some time before production release.

Usage

Template Library CLI is a client tool for managing templates, blueprints and their versions. It is here to save you from executing complex curl requests and will offer you to easily access and operate with the Template Library.

$ xopera-template-library template -h
usage: xopera-template-library [-h] [-v]
                               {template,template-group,user-group,user,setup,login,logout}
                               ...

positional arguments:
  {template,template-group,user-group,user,setup,login,logout}
    template            Template actions.
    template-group      Actions for groups of templates.
    user-group          Actions for groups of users.
    user                User info.
    setup               Setup client variables.
    login               Login to your account.
    logout              Logout of your account.

optional arguments:
  -h, --help            show this help message and exit
  -v, --verbose         Increase output verbosity

Tip

At any point the -h/--help flag is available to display proceeding options. There is also -v/--verbose flag that will turn on the debug mode to see more output.

The next sections will walk you through all Template Library CLI commands and their functions.

Setup

The setup command allows users to configure the API endpoint and is the first step of Template Library CLI use.

Before you begin using xopera-template-library tool you have to make sure that Template Library REST API endpoint and Keycloak auth endpoint are properly configured. This can be done with setup command where you will be able to change the default values that are:

# default REST API endpoint
REST_API_ENDPOINT = "https://template-library-xopera.xlab.si/api"
# default Keycloak endpoint
KEYCLOAK_ENDPOINT = "https://openid-xopera.xlab.si"

Here’s the example:

$ xopera-template-library setup --keycloak
Current Template Library REST API endpoint: https://template-library-xopera.xlab.si/api
Modify API endpoint (press enter to keep the current):
Template Library REST API endpoint has been set to: https://template-library-xopera.xlab.si/api.

Current Keycloak auth endpoint: https://openid-xopera.xlab.si
Modify Keycloak endpoint (press enter to keep the current):
Keycloak endpoint has been set to: https://openid-xopera.xlab.si.

If you run only xopera-template-library setup you will be able to modify only the REST API endpoint. You have to use --keycloak flag to tell the CLI that you will modify Keycloak auth endpoint too.

Auth (login and logout)

To use the CLI you will need an account for Template Library.

Before invoking any Template Library actions you need to login with your account, which can be created in using Template library API (Template Library REST API) using the special http basic auth credentials. Another way of having an account is using the XLAB Keycloak instance (accessible at openid-xopera.xlab.si).

So, with Template Library CLI you can login as:

XLAB Keycloak user (default)
other Keycloak user from Keycloak identity providers such as RADON (use –identity-provider IDENTITY_PROVIDER_ID flag)

Here’s the example:

# login as XLAB Keycloak user, with prompts
$ xopera-template-library login
Username: username1
Password: *******
User 'username1' logged in.

# login as XLAB Keycloak user, prompt for password
$ xopera-template-library login --username "username1"
Password: *******
User 'username1' logged in.

# login as XLAB Keycloak user, skip prompts
$ xopera-template-library login --username "username1" --password "password1"
User 'username1' logged in.

# login as Keycloak user from one of Keycloak identity providers (RADON Azure)
# use this when you know the ID of your identity provider (--identity-provider IDENTITY_PROVIDER_ID)
$ xopera-template-library login --identity-provider zocial-keycloak-xlab-oidc-provider-to-keycloak-radon-azure
Using Keycloak identity provider zocial-keycloak-xlab-oidc-provider-to-keycloak-radon-azure (Log in with RADON credentials (Azure)).
Username: username1
Password: *******
User 'username1' logged in.

# login as Keycloak user from one of Keycloak identity providers (RADON ENG)
# if you do not know the ID of the provider you can leave out the ID and the
# available providers will be listed and you will be able to choose one for authentication.
$ xopera-template-library login --identity-provider
Keycloak identity provider was not specified or is not available. You can pick your identity provider in the next steps.
Do you want to continue? (Y/n):
+List of available Keycloak identity providers--------------------------------------+---------------------------------------------+
| Provider number | Provider id                                                     | Provider description                        |
+-----------------+-----------------------------------------------------------------+---------------------------------------------+
| 1               | social-keycloak-xlab-oidc-provider-to-keycloak-radon            | Log in with RADON credentials (ENG)         |
| 2               | social-keycloak-xlab-oidc-provider-to-keycloak-radon-azure      | Log in with RADON credentials (Azure)       |
+-----------------+-----------------------------------------------------------------+---------------------------------------------+
Type in the valid provider number from the table above: 1
Using Keycloak identity provider social-keycloak-xlab-oidc-provider-to-keycloak-radon (Log in with RADON credentials (ENG)).
Username: username2
Password: *******
User 'username2' logged in.

The following arguments are required but you will be prompted by an input if missing: --username, --password.

Logging out removes all user data.

Here’s the example:

$ xopera-template-library logout
User 'username1' logged out.

Danger

Be careful not to expose your Keycloak username and password. Rather type in your password in prompt without using the --password flag.

Templates

Templates can be uploaded with save and downloaded with get command. User can also list public and private templates according to name and view version information.

$ xopera-template-library template
positional arguments:
  {create,save,get,list,version,list-groups}
    create              Initialize a template directory and files.
    save                Save a template to database.
    get                 Get a template from database.
    list                List templates from database.
    version             List versions of a template from database.
    list-groups         List template groups the template is in.

optional arguments:
  -h, --help            show this help message and exit

Create model and create blueprint

The template create command generates all directories and files that are needed to upload a Template Library model. After generating a model (TOSCA template) or a blueprint (TOSCA CSAR) user can add in his own code. You will be asked for your template’s name and type. Possible types are data, artifact, capability, requirement, relationship, interface, node, group, policy, csar and other.

So, when using the xopera-template-library template create CLI command this will automatically create the structure for your model (model will be created in current directory in a folder that has the same name as your model). If your model is just a basic TOSCA entity (e.g. node, relationship, etc.) the generated directory will contain the following files:

$ xopera-template-library template create
Template type: node
Template name: node
Model 'node' created in ./node.

$ tree node
node
├── files
│   ├── create.yml
│   └── delete.yml
├── NodeType.tosca
└── README.md

And if you decide to create a blueprint which should be a valid TOSCA CSAR, you can do the following:

$ xopera-template-library template create --type csar --name csar
Blueprint (TOSCA CSAR) 'csar' created in ./csar.

$ tree csar
csar
├── files
│   ├── create.yml
│   └── delete.yml
├── README.md
├── ServiceTemplate.tosca
└── TOSCA-Metadata
    └── TOSCA.meta

After the basic files are generated you can edit them and upload your template to the library (you can use save CLI command).

Note

The generated structure is similar to RADON particles and is compatible with Eclipse Winery modelling tool.

Save template

To save a template user needs to provide a unique name of template, template’s privacy (only the user that added a private template can manage it), and version of the template (by default templates are private, for publishing your template publicly, add --public flag.).

Here’s the example:

# upload a public template to Template Library (without README)
$ xopera-template-library template save --name AwsLambda --path example/AwsLambdaFunction --version 0.0.1 --public
Path to README file (optional, can be left empty):
Description of the template: Testing TPS CLI TOSCA node upload
Template has been added successfully!
Version insertion was successful!

# save a private CSAR to Template Library (with README)
$ xopera-template-library template save --name TestCSAR --path examples/csar --readme examples/README.md --version 0.0.1
Description of the template: Testing TPS CLI TOSCA CSAR upload
Template has been added successfully!
Version insertion was successful!

The following arguments are required: --name, --path, --version. If --public flag is present, the template will be marked as public.

Get template

A template can be downloaded from the database by its name. User also has to define the path where downloaded template directory will save.

See the next example:

$ xopera-template-library template get --name AwsLambda --path AwsLambda
Downloaded AwsLambda version 0.1.0 to 'AwsLambda'.

$ xopera-template-library template get --name DemoBlueprintOpenFaaS --path DemoBlueprintOpenFaaS --version 0.5.0
Downloaded DemoBlueprintOpenFaaS version 0.5.0 to 'DemoBlueprintOpenFaaS'.

The following arguments are required: --path, --name. By default last version of template is downloaded. For other versions specify --version.

List and filter templates

All the available templates or just a single template can be listed. By default this command lists all public templates and user’s private templates. Templates can also be filtered using their keyword, template type or publicity.

Here’s some examples of listing and filtering:

$ xopera-template-library template list
+List of templates----------------+-------------------------+------+--------+------------+---------------------+
| ID | Name                       | Description             | Type | Public | Created by | Created at          |
+----+----------------------------+-------------------------+------+--------+------------+---------------------+
| 1  | AwsBucket                  | radon.nodes             | node | True   | admin      | 2020-05-29 11:51:12 |
| 2  | AwsLambda                  | radon.nodes.function    | node | True   | admin      | 2020-05-29 11:55:50 |
| 3  | AwsBucketNotification      | radon.nodes.triggers    | node | True   | admin      | 2020-05-29 11:59:03 |
| 4  | AwsRole                    | radon.policies          | node | True   | admin      | 2020-05-29 12:02:35 |
| 5  | AwsApiGateway              | radon.nodes.triggers    | node | True   | admin      | 2020-05-29 12:05:32 |
| 6  | AzureContainer             | radon.nodes             | node | True   | admin      | 2020-06-01 06:36:30 |
| 7  | AzureContainerNotification | radon.nodes             | node | True   | admin      | 2020-06-01 06:42:14 |
| 8  | AzureFunction              | radon.nodes             | node | True   | admin      | 2020-06-01 06:51:52 |
| 9  | MinIOBucket                | radon.nodes             | node | True   | admin      | 2020-06-01 07:44:56 |
| 10 | OpenFaaSFunction           | radon.nodes             | node | True   | admin      | 2020-06-01 08:01:33 |
| 11 | OpenFaaSFunctionBuild      | radon.nodes             | node | True   | admin      | 2020-06-01 08:37:16 |
| 12 | DemoBlueprintAws           | node.blueprint          | csar | True   | admin      | 2020-07-21 10:04:22 |
| 13 | GcpBucket                  | radon.nodes.GcpBucket   | node | True   | admin      | 2020-07-21 10:04:22 |
| 14 | GcpFunction                | radon.nodes.GcpFunction | node | True   | admin      | 2020-07-21 10:04:22 |
| 15 | DemoBlueprintGcp           | node.blueprint          | csar | True   | admin      | 2020-07-21 10:04:22 |
+----+----------------------------+-------------------------+------+--------+------------+---------------------+

$ xopera-template-library template list -h
usage: xopera-template-library template list [-h] [--keyword KEYWORD]
                                             [--type TYPE] [--public PUBLIC]

optional arguments:
  -h, --help         show this help message and exit
  --keyword KEYWORD  Keyword in template name or description.
  --type TYPE        Template type name.
  --public PUBLIC    Public (true) or private (false) access.

$ xopera-template-library template list --keyword Aws --type node --public true
+List of templates-----------+----------------------+------+--------+------------+---------------------+
| ID | Name                  | Description          | Type | Public | Created by | Created at          |
+----+-----------------------+----------------------+------+--------+------------+---------------------+
| 1  | AwsBucket             | radon.nodes          | node | True   | admin      | 2020-05-29 11:51:12 |
| 2  | AwsLambda             | radon.nodes.function | node | True   | admin      | 2020-05-29 11:55:50 |
| 3  | AwsBucketNotification | radon.nodes.triggers | node | True   | admin      | 2020-05-29 11:59:03 |
| 4  | AwsRole               | radon.policies       | node | True   | admin      | 2020-05-29 12:02:35 |
| 5  | AwsApiGateway         | radon.nodes.triggers | node | True   | admin      | 2020-05-29 12:05:32 |
+----+-----------------------+----------------------+------+--------+------------+---------------------+

Versions

Template versions can be listed by using version argument and template name.

Example:

$ xopera-template-library template version --name AzureContainer
+List of versions for AzureContainer+---------------------+
| Version name | Template file name | Created at          |
+--------------+--------------------+---------------------+
| 0.1.0        | NodeType.tosca     | 2020-06-01 06:42:14 |
| 0.2.0        | NodeType.tosca     | 2020-10-01 16:05:33 |
| 0.3.0        | NodeType.tosca     | 2020-12-15 10:55:26 |
+--------------+--------------------+---------------------+

Template groups

Templates can be ordered in template groups. User can create a template group, list existing groups and get a list of templates in a template group. Template group owners can add and remove templates.

Examples:

$ xopera-template-library template-group create --group_name MyGroup --group_description "My super models"
Group was added successfully!

$ xopera-template-library template-group list
+List of groups-----+-----------------+------------+---------------------+
| ID | Name         | Description     | Created by | Created at          |
+----+--------------+-----------------+------------+---------------------+
| 1  | AWS          | AWS models      | admin      | 2021-02-03 07:52:54 |
| 2  | Azure        | Azure models    | user1      | 2021-02-03 07:53:05 |
| 3  | GCP          | GCP models      | user2      | 2021-02-03 07:53:13 |
| 4  | OpenFaaS     | OpenFaaS models | user3      | 2021-02-03 07:53:27 |
| 5  | MyGroup      | My super models | user4      | 2021-02-03 07:53:27 |
+----+--------------+-----------------+------------+---------------------+

$ xopera-template-library template-group add-template --group_name AWS --template_name AwsBucket
Template was successfully added to the group!

$ xopera-template-library template-group get --group_name AWS
+List of templates in template group 'AWS'----------+------+--------+------------+---------------------+
| ID | Name                  | Description          | Type | Public | Created by | Created at          |
+----+-----------------------+----------------------+------+--------+------------+---------------------+
| 2  | AwsBucket             | radon.nodes          | node | True   | admin      | 2020-05-29 11:51:12 |
| 3  | AwsLambda             | radon.nodes.function | node | True   | admin      | 2020-05-29 11:55:50 |
| 4  | AwsBucketNotification | radon.nodes.triggers | node | True   | admin      | 2020-05-29 11:59:03 |
| 5  | AwsRole               | radon.policies       | node | True   | admin      | 2020-05-29 12:02:35 |
| 6  | AwsApiGateway         | radon.nodes.triggers | node | True   | admin      | 2020-05-29 12:05:32 |
| 13 | DemoBlueprintAws      | node.blueprint       | csar | True   | admin      | 2020-07-21 10:04:22 |
+----+-----------------------+----------------------+------+--------+------------+---------------------+

$ xopera-template-library template-group add-template --group_name AWS --template_name AwsBucket
Template is already in that group!

$ xopera-template-library template-group remove-template --group_name AwsGroup --template_name AwsBucket
Template was successfully removed from the group!

User groups

Users can be members of user groups. User groups can be granted access to groups of templates. User can create a user group, list existing groups, get a list of users in a given user group and get a list of template groups a user group is granted access to. User group owners can add and remove users and access to template groups.

Some simple examples are below:

$ xopera-template-library user-group create --group_name developers --group_description "Developers group"
Group was added successfully!

$ xopera-template-library user-group list
+List of groups-------+----------------+------------+---------------------+
| ID | Name           | Description    | Created by | Created at          |
+----+----------------+----------------+------------+---------------------+
| 1  | admin          | Admin users    | admin      | 2021-02-03 07:57:39 |
| 2  | La_Pulga       | Team Messi     | messi      | 2021-02-03 09:27:19 |
| 3  | El_Pibe_de_Oro | Team Maradona  | marado     | 2021-02-04 18:29:03 |
| 4  | O_Rei          | Team Pele      | pele       | 2021-02-04 14:53:17 |
| 5  | developers     | Dec team       | d10s       | 2021-02-04 14:53:17 |
+----+----------------+----------------+------------+---------------------+

$ xopera-template-library user-group get-users --group_name El_Pibe_de_Oro

+-----------------------+
| Username              |
+-----------------------+
| marado                |
| valdano               |
| burruchaga            |
+-----------------------+

$ xopera-template-library user-group add-user --group_name La_Pulga --username xavi
User was successfully added to the group!

$ xopera-template-library user-group remove-user --group_name La_Pulga --username suarez
User was successfully removed from the group!

$ xopera-template-library user-group add-templates --user_group developers --template_group AWS
Access to template group was added successfully!

$ xopera-template-library user-group add-templates --user_group developers --template_group Azure
This user group already has access to this template group!

$ xopera-template-library user-group remove-templates --user_group developers --template_group GCP
Access to template group was revoked successfully!

Users

Users can look up their info, list user groups they are members of and list template groups they have access to.

Here’s some examples:

$ xopera-template-library user info
+User data-----------+--------------------+--------------------+---------------------+
| ID | Name          | Username           | Email              | Created at          |
+----+---------------+--------------------+--------------------+---------------------+
| 6  | Keycloak user | user@example.com   | user@example.com   | 2020-10-29 14:55:39 |
+----+---------------+--------------------+--------------------+---------------------+

$ xopera-template-library user user-groups
+List of groups-----------+------------+---------------------+
| ID | Name | Description | Created by | Created at          |
+----+------+-------------+------------+---------------------+
| 1  | xlab | Admin users | admin      | 2021-02-03 07:57:39 |
+----+------+-------------+------------+---------------------+

$ xopera-template-library user template-groups
+List of template groups accessible by 'xlab'--+---------------------+
| ID | Name     | Description     | Created by | Created at          |
+----+----------+-----------------+------------+---------------------+
| 1  | AWS      | AWS models      | admin      | 2021-02-03 07:52:54 |
| 2  | Azure    | Azure models    | admin      | 2021-02-03 07:53:05 |
| 3  | GCP      | GCP models      | admin      | 2021-02-03 07:53:13 |
| 4  | OpenFaaS | OpenFaaS models | admin      | 2021-02-03 07:53:27 |
+----+----------+-----------------+------------+---------------------+

Debugging

If you have some problems when you are executing commands with the Template Library CLI you can use switch to debug mode. To debug your client add -v or --verbose argument after calling xopera-template-library:

Take a look at some examples below:

$ xopera-template-library --verbose setup

DEBUG:root:Metadata storage: /home/user/.config/template_library
DEBUG:root:[Errno 17] File exists: '/home/user/.config/template_library'
Current Template Library REST API endpoint: https://template-library-xopera.xlab.si/api
Modify API endpoint (press enter to keep the current):
Template Library REST API endpoint has been set to: https://template-library-xopera.xlab.si/api.

Current Keycloak auth endpoint: https://openid-xopera.xlab.si
Modify Keycloak endpoint (press enter to keep the current):
Keycloak endpoint has been set to: https://openid-xopera.xlab.si.
DEBUG:root:https://template-library-xopera.xlab.si/api
DEBUG:root:https://openid-xopera.xlab.si

$ xopera-template-library -v template list

DEBUG:root:Metadata storage: /home/anzoman/.config/template_library
DEBUG:root:https://template-library-xopera.xlab.si/api
DEBUG:root:https://openid-xopera.xlab.si
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443
DEBUG:urllib3.connectionpool:https://template-library-xopera.xlab.si:443 "GET /api/templates/filter HTTP/1.1" 200 1061
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443
DEBUG:urllib3.connectionpool:https://template-library-xopera.xlab.si:443 "GET /api/users?user_id=1 HTTP/1.1" 200 154
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443
DEBUG:urllib3.connectionpool:https://template-library-xopera.xlab.si:443 "GET /api/users?user_id=1 HTTP/1.1" 200 154
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443
DEBUG:urllib3.connectionpool:https://template-library-xopera.xlab.si:443 "GET /api/users?user_id=1 HTTP/1.1" 200 154
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443
DEBUG:urllib3.connectionpool:https://template-library-xopera.xlab.si:443 "GET /api/users?user_id=1 HTTP/1.1" 200 154
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443
DEBUG:urllib3.connectionpool:https://template-library-xopera.xlab.si:443 "GET /api/users?user_id=1 HTTP/1.1" 200 154
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443
DEBUG:urllib3.connectionpool:https://template-library-xopera.xlab.si:443 "GET /api/users?user_id=1 HTTP/1.1" 200 154
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): template-library-xopera.xlab.si:443

+List of templates----------------+-------------------------+------+--------+------------+---------------------+
| ID | Name                       | Description             | Type | Public | Created by | Created at          |
+----+----------------------------+-------------------------+------+--------+------------+---------------------+
| 1  | AwsBucket                  | radon.nodes             | node | True   | admin      | 2020-05-29 11:51:12 |
| 2  | AwsLambda                  | radon.nodes.function    | node | True   | admin      | 2020-05-29 11:55:50 |
| 3  | AwsBucketNotification      | radon.nodes.triggers    | node | True   | admin      | 2020-05-29 11:59:03 |
| 4  | AwsRole                    | radon.policies          | node | True   | admin      | 2020-05-29 12:02:35 |
| 5  | AwsApiGateway              | radon.nodes.triggers    | node | True   | admin      | 2020-05-29 12:05:32 |
| 6  | AzureContainer             | radon.nodes             | node | True   | admin      | 2020-06-01 06:36:30 |
| 7  | AzureContainerNotification | radon.nodes             | node | True   | admin      | 2020-06-01 06:42:14 |
| 8  | AzureFunction              | radon.nodes             | node | True   | admin      | 2020-06-01 06:51:52 |
| 9  | MinIOBucket                | radon.nodes             | node | True   | admin      | 2020-06-01 07:44:56 |
| 10 | OpenFaaSFunction           | radon.nodes             | node | True   | admin      | 2020-06-01 08:01:33 |
| 11 | OpenFaaSFunctionBuild      | radon.nodes             | node | True   | admin      | 2020-06-01 08:37:16 |
| 12 | DemoBlueprintAws           | node.blueprint          | csar | True   | admin      | 2020-07-21 10:04:22 |
| 13 | GcpBucket                  | radon.nodes.GcpBucket   | node | True   | admin      | 2020-07-21 10:04:22 |
| 14 | GcpFunction                | radon.nodes.GcpFunction | node | True   | admin      | 2020-07-21 10:04:22 |
| 15 | DemoBlueprintGcp           | node.blueprint          | csar | True   | admin      | 2020-07-21 10:04:22 |
+----+----------------------------+-------------------------+------+--------+------------+---------------------+

User story

This subsection provides a concrete usage scenario for the Template Library Command Line Interface which needs to be installed first (you can follow Installation part). Here we are talking about the user named John who already has a Template Library account (John is an XLAB Keycloak user) and has already installed Template Library CLI into Python virtual environment.

The story begins when John would like to create his own blueprint to deploy an application. Let’s say that he wants to create an AWS application for creating thumbnails from images. When an image is uploaded to the source AWS bucket, the bucket notification invokes the AWS Lambda resizing function that creates thumbnails and uploads them to the destination bucket where user can see them. John knows there are already a lot of modules/templates saved in the Template Library and he decides to use the tool via Template Library CLI. First he has to setup the CLI and log in with his credentials.

(.venv) $ xopera-template-library setup
Current Template Library REST API endpoint: https://template-library-xopera.xlab.si/api
Modify API endpoint (press enter to keep the current):
Template Library REST API endpoint has been set to: https://template-library-xopera.xlab.si/api.

(.venv) $ xopera-template-library login --username johnsmith --password johnssecurepass123
User 'johnsmith' logged in.

Warning

Don’t be like John. Omit the --password switch and rather type in your password through prompt.

After that the program is ready to use. John can now generate his project folder and a startup blueprint (TOSCA CSAR) file.

(.venv) $ xopera-template-library template create --type csar --name csar
Template type: csar
Template name: johns-project
Blueprint (TOSCA CSAR) 'csar' created in ./johns-project.

(.venv) $ tree johns-project
johns-project
├── files
│   ├── create.yml
│   └── delete.yml
├── README.md
├── ServiceTemplate.tosca
└── TOSCA-Metadata
    └── TOSCA.meta

(.venv) $ cat johns-project/TOSCA-Metadata/TOSCA.meta
TOSCA-Meta-File-Version: '1.1'
CSAR-Version: '1.1'
Created-By: Template Library CLI
Entry-Definitions: ServiceTemplate.tosca

Template Library CLI has generated a valid TOSCA CSAR for John which is evident from TOSCA-Metadata/TOSCA.meta file. Then he lists all public templates in the Template Library to see what he can use with template list CLI command:

(.venv) $ xopera-template-library template list

+List of templates----------------+-------------------------+------+--------+------------+---------------------+
| ID | Name                       | Description             | Type | Public | Created by | Created at          |
+----+----------------------------+-------------------------+------+--------+------------+---------------------+
| 1  | AwsBucket                  | radon.nodes             | node | True   | admin      | 2020-05-29 11:51:12 |
| 2  | AwsLambda                  | radon.nodes.function    | node | True   | admin      | 2020-05-29 11:55:50 |
| 3  | AwsBucketNotification      | radon.nodes.triggers    | node | True   | admin      | 2020-05-29 11:59:03 |
| 4  | AwsRole                    | radon.policies          | node | True   | admin      | 2020-05-29 12:02:35 |
| 5  | AwsApiGateway              | radon.nodes.triggers    | node | True   | admin      | 2020-05-29 12:05:32 |
| 6  | AzureContainer             | radon.nodes             | node | True   | admin      | 2020-06-01 06:36:30 |
| 7  | AzureContainerNotification | radon.nodes             | node | True   | admin      | 2020-06-01 06:42:14 |
| 8  | AzureFunction              | radon.nodes             | node | True   | admin      | 2020-06-01 06:51:52 |
+----+----------------------------+-------------------------+------+--------+------------+---------------------+

He decides on AwsLambda and AwsBucket and downloads the templates.

(.venv) $ xopera-template-library entity-template get --path johns-project/files/AwsLambda
Downloaded AwsLambda version 0.1.0 to 'AwsLambda'.

(.venv) $ xopera-template-library entity-template get --path johns-project/files/AwsBucket
Downloaded AwsBucket version 0.1.0 to 'AwsBucket'.

He erases some unneeded files and modifies his TOSCA service template. His structure now looks like this:

(.venv) $ tree johns-project
johns-project
├── files
│   ├── AwsBucket
│   │   ├── files
│   │   │   ├── create.yml
│   │   │   └── delete.yml
│   │   └── NodeType.tosca
│   ├── AwsLambda
│   │   ├── files
│   │   │   ├── create.yml
│   │   │   └── delete.yml
│   │   └── NodeType.tosca
├── README.md
├── ServiceTemplate.tosca
└── TOSCA-Metadata
    └── TOSCA.meta

But he also wants to add module for AWS Bucket Notification. To make things easier he uses template create CLI command to generate the necessary files and directories.

(.venv) $ xopera-template-library template create
Template type: node
Template name: johns-project/files/AwsBucketNotification
Model 'AwsBucketNotification' created in johns-project/files/AwsBucketNotification.

(.venv) $ tree johns-project
johns-project
├── files
│   ├── AwsBucket
│   │   ├── files
│   │   │   ├── create.yml
│   │   │   └── delete.yml
│   │   └── NodeType.tosca
│   ├── AwsBucketNotification
│   │   ├── files
│   │   │   ├── create.yml
│   │   │   └── delete.yml
│   │   └── NodeType.tosca
│   ├── AwsLambda
│   │   ├── files
│   │   │   ├── create.yml
│   │   │   └── delete.yml
│   │   └── NodeType.tosca
├── README.md
├── ServiceTemplate.tosca
└── TOSCA-Metadata
    └── TOSCA.meta

John modifies his TOSCA service template and includes the created AwsBucketNotification module. Now his blueprint is prepared and he can test it with the TOSCA orchestrator (like opera) to see how the deployment works (we will skip this part since this is not the point here). John thinks his blueprint is pretty good, so he decides to add it to the public Template Library collection because sharing is caring. Before he does that he should compress his files (a valid TOSCA CSAR is usually a zip file).

(.venv) $ cd johns-project
(.venv) $ zip -r JohnsBlueprint.zip ServiceTemplate.tosca files TOSCA-Metadata
(.venv) $ xopera-template-library template save --name JohnsBlueprint --path johns-project/JohnsBlueprint.zip --public_access True --version 0.0.1
Path to README file (optional, can be left empty):
Description of the template: Johns blueprint with AWS thumbnail generator
Template has been added successfully!
Version insertion was successful!

John has submitted his blueprint and others can now download it from Template Library to test his magnificent work.

Note

Some parts of blueprint preparation such as AWS Lambda function preparation CSAR validation are skipped for brevity.

TPS CLI video

In the video below we present the TPS and how to use it through the CLI. Template Library CLI is a client tool that is connected to the TPS REST API. The tool can be used from the user’s console for managing templates, blueprints and their versions. It is here to save you from executing complex curl requests and will offer you to easily access and operate with the Template Library. The CLI tool goes by the name xopera-template-library and you can install it as a Python package from PyPI.

CLI commands

The next section lists and describes all Template Library CLI commands and their options.

Template Library CLI

Prerequisites

Installation

Usage

Setup

Templates

Create model and create blueprint

Save template

Get template

List and filter templates

Versions

Template groups

User groups

Users

Debugging

User story

TPS CLI video

CLI commands

setup

logout

user

user-group

template

template-group

Template Library CLI

Prerequisites

Installation

Usage

Setup

Auth (login and logout)

Templates

Create model and create blueprint

Save template

Get template

List and filter templates

Versions

Template groups

User groups

Users

Debugging

User story

TPS CLI video

CLI commands

setup

login

logout

user

user-group

template

template-group