3.2. Creating an Image Builder blueprint with command-line interface

This procedure describes how to create a new Image Builder blueprint using the command-line interface.

Procedure

1. Create a plain text file with the following contents:

name = "BLUEPRINT-NAME"
description = "LONGER BLUEPRINT DESCRIPTION TEXT"
version = "0.0.1"

name = "BLUEPRINT-NAME"
description = "LONGER BLUEPRINT DESCRIPTION TEXT"
version = "0.0.1"

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Replace BLUEPRINT-NAME and LONGER BLUEPRINT DESCRIPTION with a name and description for your blueprint.

Replace 0.0.1 with a version number according to the Semantic Versioning scheme.

2. For every package that you want to be included in the blueprint, add the following lines to the file:

[[packages]]
name = "package-name"
version = "package-version"

[[packages]]
name = "package-name"
version = "package-version"

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Replace package-name with name of the package, such as httpd, gdb-doc, or coreutils.

Replace package-version with a version to use. This field supports dnf version specifications:

For a specific version, use the exact version number such as 7.30
For latest available version, use the asterisk *
For a latest minor version, use format such as 7.*.

3. Blueprints can be customized in a number of ways. For example, Simultaneous Multi-Threading (SMT) can be disabled by performing the steps below. For additional customizations available, please see the 第 3.7 节 “ Supported Image Customizations ” section.

[customizations.kernel]
append = "nosmt=force"

[customizations.kernel]
append = "nosmt=force"

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4. Save the file as BLUEPRINT-NAME.toml and close the text editor.

5. Push (import) the blueprint:

composer-cli blueprints push BLUEPRINT-NAME.toml

# composer-cli blueprints push BLUEPRINT-NAME.toml

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Replace BLUEPRINT-NAME with the value you used in previous steps.

6. To verify that the blueprint has been pushed and exists, list the existing blueprints:

composer-cli blueprints list

# composer-cli blueprints list

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7. Check whether the components and versions listed in the blueprint and their dependencies are valid:

composer-cli blueprints depsolve BLUEPRINT-NAME

# composer-cli blueprints depsolve BLUEPRINT-NAME

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3.2. Creating an Image Builder blueprint with command-line interface

Procedure

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