The Ubuntu Pro API reference guide

The Ubuntu Pro Client has a Python-based API to be consumed by users who want to integrate the Client’s functionality with their software.

The functions and objects are available through the uaclient.api module, and all of the available endpoints return an object with specific data for the calls.

Besides importing the Python code directly, consumers who are not writing Python may use the command line interface (CLI) to call the same functionality, using the pro api command. This command will always return a JSON with a standard structure, as can be seen below:

{
    "_schema_version": "v1",
    "data": {
        "attributes": {
            // <endpoint specific attributes>
        },
        "meta": {
            "environment_vars": []
        },
        "type": "<response_type>"
    },
    "errors": [],
    "result": "<success|failure>",
    "version": "<client version>",
    "warnings": []
}

Version dependencies

The package name of Ubuntu Pro Client is ubuntu-advantage-tools.

The documentation for each endpoint below states the first version to include that endpoint.

If you depend on these endpoints, we recommend using a standard dependency version requirement to ensure that a sufficiently up-to-date version of the Pro Client is installed before trying to use it.

Important

The ~ at the end of the version is important to ensure that dpkg version comparison works as expected.

For example, if your software is packaged as a deb, then you can add the following to your Depends list in your control file to ensure the installed version is at least 27.11~:

ubuntu-advantage-tools (>= 27.11~)

Runtime version detection

If you need to detect the current version at runtime, the most reliable way is to query dpkg.

dpkg-query --showformat='${Version}' --show ubuntu-advantage-tools

If you need to compare versions at runtime, make sure you use the dpkg version comparison algorithm. For example, the following will exit 0 if the currently installed version of Pro Client is at least 27.11~:

dpkg --compare-versions "$(dpkg-query --showformat='${Version}' --show ubuntu-advantage-tools)" ge "27.11~"

Runtime feature detection

As an alternative to version detection, you can use feature detection. This is easier to do when importing the API in python than it is when using the pro api subcommand.

In python, try to import the desired endpoint. If an ImportError is raised, then the currently installed version of Ubuntu Pro Client doesn’t support that endpoint.

For example:

try:
    from uaclient.api.u.pro.version.v1 import version
    pro_client_api_supported = True
except ImportError:
    pro_client_api_supported = False

You could do something similar by catching certain errors when using the pro api subcommand, but there are more cases that could indicate an old version, and it generally isn’t recommended.

Errors and warnings fields

When using the API through the CLI, we use two distinct fields to list issues to the users; errors and warnings.

Both of these fields contain a list of JSON objects explaining unexpected behavior during the execution of a command. For example, the errors field will be populated like this if we have a connectivity issue when running a pro api command:

[
    {
        "msg": "Failed to connect to authentication server",
        "code": "connectivity-error",
        "meta": {}
    }
]

Warnings follow the exact same structure as errors. The only difference is that warnings means that the command was able to complete although unexpected scenarios happened when executing the command.

CLI arguments

There are two ways to provide data to APIs that require arguments.

• --args: Use this to individually provide arguments to the CLI endpoint.

  For example: pro api u.pro.attach.magic.revoke.v1 --args magic_token=TOKEN

• --data: Use this to provide a JSON object containing all the data:

  For example: pro api u.pro.security.fix.cve.plan.v1 --data '{"cves": ["CVE-1234-1235"]}'

Available endpoints

The currently available endpoints are:

• u.pro.version.v1

• u.pro.attach.magic.initiate.v1

• u.pro.attach.magic.wait.v1

• u.pro.attach.magic.revoke.v1

• u.pro.attach.auto.should_auto_attach.v1

• u.pro.attach.auto.full_auto_attach.v1

• u.pro.attach.auto.configure_retry_service.v1

• u.pro.security.fix.cve.plan.v1

• u.pro.security.fix.usn.plan.v1

• u.pro.security.status.livepatch_cves.v1

• u.pro.security.status.reboot_required.v1

• u.pro.packages.summary.v1

• u.pro.packages.updates.v1

• u.pro.status.is_attached.v1

• u.pro.status.enabled_services.v1

• u.apt_news.current_news.v1

• u.security.package_manifest.v1

• u.unattended_upgrades.status.v1

u.pro.version.v1

This endpoint shows the installed Pro Client version.

• Introduced in Ubuntu Pro Client Version: 27.11~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.version.v1 import version
  
  result = version()
  

• Expected return object:

  • uaclient.api.u.pro.version.v1.VersionResult

    Field Name	Type	Description
    installed_version	str	The current installed version

• Raised exceptions:

  • VersionError: Raised if the Client cannot determine the version.

CLI interaction

• Calling from the CLI:

  pro api u.pro.version.v1
  

• Expected attributes in JSON structure:

  {
     "installed_version":"<version>"
  }
  

u.pro.attach.magic.initiate.v1

This endpoint initiates the Magic Attach flow, retrieving the User Code to confirm the operation and the Token used to proceed.

• Introduced in Ubuntu Pro Client Version: 27.11~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.attach.magic.initiate.v1 import initiate
  
  result = initiate()
  

• Expected return object:

  • uaclient.api.u.pro.attach.magic.initiate.v1.MagicAttachInitiateResult

    Field Name	Type	Description
    user_code	str	Code the user will see in the UI when confirming the Magic Attach
    token	str	Magic Token used by the tooling to continue the operation
    expires	str	Timestamp of the Magic Attach process expiration
    expires_in	int	Seconds before the Magic Attach process expires

• Raised exceptions:

  • ConnectivityError: Raised if it is not possible to connect to the Contracts Server.

  • ContractAPIError: Raised if there is an unexpected error in the Contracts Server interaction.

  • MagicAttachUnavailable: Raised if the Magic Attach service is busy or unavailable at the moment.

CLI interaction

• Calling from the CLI:

  pro api u.pro.attach.magic.initiate.v1
  

• Expected attributes in JSON structure:

  {
     "user_code":"<UI_code>",
     "token":"<magic_token>",
     "expires": "<yyyy-MM-dd>T<HH:mm:ss>.<TZ>",
     "expires_in": 600
  }
  

u.pro.attach.magic.wait.v1

This endpoint polls the Contract Server waiting for the user to confirm the Magic Attach.

• Introduced in Ubuntu Pro Client Version: 27.11~

• Args:

  • magic_token: The Token provided by the initiate endpoint.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.attach.magic.wait.v1 import MagicAttachWaitOptions, wait
  
  options = MagicAttachWaitOptions(magic_token="<magic_token>")
  result = wait(options)
  

• Expected return object:

  • uaclient.api.u.pro.attach.magic.wait.v1.MagicAttachWaitResult

    Field Name	Type	Description
    user_code	str	Code the user will see in the UI when confirming the Magic Attach
    token	str	Magic Token used by the tooling to continue the operation
    expires	str	Timestamp of the Magic Attach process expiration
    expires_in	int	Seconds before the Magic Attach process expires
    contract_id	str	ID of the contract the machine will be attached to
    contract_token	str	The contract Token to attach the machine

• Raised exceptions:

  • ConnectivityError: Raised if it is not possible to connect to the Contracts Server.

  • ContractAPIError: Raised if there is an unexpected error in the Contracts Server interaction.

  • MagicAttachTokenError: Raised when an invalid/expired Token is sent.

  • MagicAttachUnavailable: Raised if the Magic Attach service is busy or unavailable at the moment.

CLI interaction

• Calling from the CLI:

  pro api u.pro.attach.magic.wait.v1 --args magic_token=<magic_token>
  

• Expected attributes in JSON structure:

  {
      "user_code":"<UI_code>",
      "token":"<magic_token>",
      "expires": "<yyyy-MM-dd>T<HH:mm:ss>.<TZ>",
      "expires_in": 500,
      "contract_id": "<Contract-ID>",
      "contract_token": "<attach_token>",
  }
  

u.pro.attach.magic.revoke.v1

This endpoint revokes a Magic Attach Token.

• Introduced in Ubuntu Pro Client Version: 27.11~

• Args:

  • magic_token: The Token provided by the initiate endpoint.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.attach.magic.revoke.v1 import MagicAttachRevokeOptions, revoke
  
  options = MagicAttachWaitOptions(magic_token="<magic_token>")
  result = revoke(options)
  

• Expected return object:

  • uaclient.api.u.pro.attach.magic.wait.v1.MagicAttachRevokeResult

    No data present in the result.

• Raised exceptions:

  • ConnectivityError: Raised if it is not possible to connect to the Contracts Server.

  • ContractAPIError: Raised if there is an unexpected error in the Contracts Server interaction.

  • MagicAttachTokenAlreadyActivated: Raised when trying to revoke a Token which was already activated through the UI.

  • MagicAttachTokenError: Raised when an invalid/expired Token is sent.

  • MagicAttachUnavailable: Raised if the Magic Attach service is busy or unavailable at the moment.

CLI interaction

• Calling from the CLI:

  pro api u.pro.attach.magic.revoke.v1 --args magic_token=<token>
  

• Expected attributes in JSON structure:

  {}
  

u.pro.attach.auto.should_auto_attach.v1

This endpoint checks if a given system should run auto-attach on boot.

• Introduced in Ubuntu Pro Client Version: 27.11~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.attach.auto.should_auto_attach.v1 import should_auto_attach
  
  result = should_auto_attach()
  

• Expected return object:

  • uaclient.api.u.pro.attach.auto.should_auto_attach.v1.ShouldAutoAttachResult

    Field Name	Type	Description
    should_auto_attach	bool	True if the system should run auto-attach on boot

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.pro.attach.auto.should_auto_attach.v1
  

• Expected attributes in JSON structure:

  {
      "should_auto_attach": false
  }
  

u.pro.attach.auto.full_auto_attach.v1

This endpoint runs the whole auto-attach process on the system.

• Introduced in Ubuntu Pro Client Version: 27.11~

• Args:

  • enable: Optional list of services to enable after auto-attaching.

  • enable_beta: Optional list of beta services to enable after auto-attaching.

Note

If none of the lists are set, the services will be enabled based on the contract definitions.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.attach.auto.full_auto_attach.v1 import full_auto_attach, FullAutoAttachOptions
  
  options = FullAutoAttachOptions(enable=["<service1>", "<service2>"], enable_beta=["<beta_service3>"])
  result = full_auto_attach(options)
  

• Expected return object:

  • uaclient.api.u.pro.attach.auto.full_auto_attach.v1.FullAutoAttachResult

    No data present in the result.

• Raised exceptions

  • AlreadyAttachedError: Raised if running on a machine which is already attached to a Pro subscription.

  • AutoAttachDisabledError: Raised if disable_auto_attach: true in uaclient.conf.

  • ConnectivityError: Raised if it is not possible to connect to the Contracts Server.

  • ContractAPIError: Raised if there is an unexpected error in the Contracts Server interaction.

  • EntitlementsNotEnabledError: Raised if the Client fails to enable any of the entitlements (whether present in any of the lists or listed in the contract).

  • LockHeldError: Raised if another Client process is holding the lock on the machine.

  • NonAutoAttachImageError: Raised if the cloud where the system is running does not support auto-attach.

  • UserFacingError: Raised if:

    • The Client is unable to determine which cloud the system is running on.

    • The image where the Client is running does not support auto-attach.

CLI interaction

• Calling from the CLI:

  This endpoint currently has no CLI support. Only the Python-based version is available.

u.pro.attach.auto.configure_retry_service.v1

This endpoint configures options for the retry auto-attach functionality, and creates files that will activate the retry auto-attach functionality if ubuntu-advantage.service runs.

Note that this does not start ubuntu-advantage.service. This makes it useful for calling during the boot process Before: ubuntu-advantage.service so that when ubuntu-advantage.service starts, its ConditionPathExists check passes and activates the retry auto-attach function.

If you call this function outside of the boot process and would like the retry auto-attach functionality to actually start, you’ll need to call something like systemctl start ubuntu-advantage.service.

• Introduced in Ubuntu Pro Client Version: 27.12~

• Args:

  • enable: Optional list of services to enable after auto-attaching.

  • enable_beta: Optional list of beta services to enable after auto-attaching.

Note

If none of the lists are set, the services will be enabled based on the contract definitions.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.attach.auto.configure_retry_service.v1 import configure_retry_service, ConfigureRetryServiceOptions
  
  options = ConfigureRetryServiceOptions(enable=["<service1>", "<service2>"], enable_beta=["<beta_service3>"])
  result = configure_retry_service(options)
  

• Expected return object:

  • uaclient.api.u.pro.attach.auto.configure_retry_service.v1.ConfigureRetryServiceResult

    No data present in the result.

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  • This endpoint currently has no CLI support. Only the Python-based version is available.

u.pro.security.fix.cve.plan.v1

This endpoint shows the necessary steps required to fix CVEs in the system without executing any of those steps.

• Introduced in Ubuntu Pro Client Version: 29~

• Args:

  • cves: A list of CVE (i.e. CVE-2023-2650) titles

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.security.fix.cve.plan.v1 import plan, CVEFixPlanOptions
  
  options = CVEFixPlanOptions(cves=["CVE-1234-1234", "CVE-1234-1235"])
  result = plan(options)
  

• Expected return object:

  • uaclient.api.u.pro.security.fix.cve.plan.v1.CVESFixPlanResult

    Field Name	Type	Description
    cves_data	List[CVEFixPlanResult]	A list of CVEFixPlanResult objects

  • uaclient.api.u.pro.security.fix.cve.plan.v1.CVEFixPlanResult

    Field Name	Type	Description
    expected_status	str	The expected status of fixing the CVEs
    cves	List[FixPlanResult]	A list of FixPlanResult objects

  • uaclient.api.u.pro.security.fix import FixPlanResult

    Field Name	Type	Description
    title	str	The title of the CVE
    expected_status	str	The expected status of fixing the CVE
    plan	List[FixPlanStep]	A list of FixPlanStep objects
    warnings	List[FixPlanWarning]	A list of FixPlanWarning objects
    error	Optional[FixPlanError]	A list of FixPlanError objects

  • uaclient.api.u.pro.security.fix import FixPlanStep

    Field Name	Type	Description
    operation	str	The operation that would be performed to fix the CVE. This can be either an attach, enable, apt-upgrade or a no-op type
    order	int	The execution order of the operation
    data	object	A data object that can be either an AptUpgradeData, AttachData, EnableData, NoOpData
    warnings	List[FixPlanWarning]	A list of FixPlanWarning objects
    error	Optional[FixPlanError]	A list of FixPlanError objects

  • uaclient.api.u.pro.security.fix import FixPlanWarning

    Field Name	Type	Description
    warning_type	str	The type of warning
    order	int	The execution order of the operation
    data	object	A data object that represents either an PackageCannotBeInstalledData or a SecurityIssueNotFixedData

  • uaclient.api.u.pro.security.fix import FixPlanError

    Field Name	Type	Description
    msg	str	The error message
    code	str	The message code

  • uaclient.api.u.pro.security.fix import AptUpgradeData

    Field Name	Type	Description
    binary_packages	List[str]	A list of binary packages that need to be upgraded
    source_packages	List[str]	A list of source packages that need to be upgraded

  • uaclient.api.u.pro.security.fix import AttachData

    Field Name	Type	Description
    reason	str	The reason why an attach operation is needed

  • uaclient.api.u.pro.security.fix import EnableData

    Field Name	Type	Description
    service	str	The Pro client service that needs to be enabled

  • uaclient.api.u.pro.security.fix import NoOpData

    Field Name	Type	Description
    status	str	The status of the CVE when no operation can be performed

  • uaclient.api.u.pro.security.fix import PackageCannotBeInstalledData

    Field Name	Type	Description
    binary_package	str	The binary package that cannot be installed
    binary_package_version	str	The version of the binary package that cannot be installed
    source_package	str	The source package associated with the binary package

  • uaclient.api.u.pro.security.fix import SecurityIssueNotFixedData

    Field Name	Type	Description
    source_packages	List[str]	A list of source packages that cannot be fixed at the moment
    status	str	The status of the CVE regarding those packages

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.pro.security.fix.cve.plan.v1 --data '{"cves": ["CVE-1234-1234", "CVE-1234-1235"]}'
  

• Expected attributes in JSON structure:

  {
     "cves_data": {
         "expected_status": "fixed",
         "cves": [
           {
               "title": "CVE-1234-56789",
               "expected_status": "fixed",
               "plan": [
                   {
                       "operation": "apt-upgrade",
                       "order": 1,
                       "data": {
                           "binary_packages": ["pkg1"],
                           "source_packages": ["pkg1"],
                       }
                   }
               ],
               "warnings": [],
               "error": null
           }
         ]
     }
  }
  

u.pro.security.fix.usn.plan.v1

This endpoint shows the necessary steps required to fix USNs in the system without executing any of those steps.

• Introduced in Ubuntu Pro Client Version: 29~

• Args:

  • usns: A list of USNs (i.e. USN-6119-1) titles

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.security.fix.usn.plan.v1 import plan, USNFixPlanOptions
  
  options = USNFixPlanOptions(cves=["USN-1234-1", "USN-1235-1"])
  result = plan(options)
  

• Expected return object:

  • uaclient.api.u.pro.security.fix.cve.plan.v1.USNSFixPlanResult

    Field Name	Type	Description
    usns_data	List[USNFixPlanResult]	A list of USNFixPlanResult objects

  • uaclient.api.u.pro.security.fix.cve.plan.v1.USNFixPlanResult

    Field Name	Type	Description
    expected_status	str	The expected status of fixing the USNs
    cves	List[FixPlanUSNResult]	A list of FixPlanUSNResult objects

  • uaclient.api.u.pro.security.fix import FixPlanUSNResult

    Field Name	Type	Description
    target_usn_plan	FixPlanResult	A FixPlanResult object for the target USN
    related_usns_plan	List[FixPlanResult]	A list of FixPlanResult objects for the related USNs

  • uaclient.api.u.pro.security.fix import FixPlanResult

    Field Name	Type	Description
    title	str	The title of the USN
    expected_status	str	The expected status of fixing the USN
    plan	List[FixPlanStep]	A list of FixPlanStep objects
    warnings	List[FixPlanWarning]	A list of FixPlanWarning objects
    error	Optional[FixPlanError]	A list of FixPlanError objects

  • uaclient.api.u.pro.security.fix import FixPlanStep

    Field Name	Type	Description
    operation	str	The operation that would be performed to fix the USN
    order	int	The execution order of the operation
    data	object	A data object that can be either an AptUpgradeData, AttachData, EnableData, NoOpData
    warnings	List[FixPlanWarning]	A list of FixPlanWarning objects
    error	Optional[FixPlanError]	A list of FixPlanError objects

  • uaclient.api.u.pro.security.fix import FixPlanWarning

    Field Name	Type	Description
    warning_type	str	The type of warning
    order	int	The execution order of the operation
    data	object	A data object that represents either an PackageCannotBeInstalledData or a SecurityIssueNotFixedData

  • uaclient.api.u.pro.security.fix import FixPlanError

    Field Name	Type	Description
    msg	str	The error message
    code	str	The message code

  • uaclient.api.u.pro.security.fix import AptUpgradeData

    Field Name	Type	Description
    binary_packages	List[str]	A list of binary packages that need to be upgraded
    source_packages	List[str]	A list of source packages that need to be upgraded

  • uaclient.api.u.pro.security.fix import AttachData

    Field Name	Type	Description
    reason	str	The reason why an attach operation is needed

  • uaclient.api.u.pro.security.fix import EnableData

    Field Name	Type	Description
    service	str	The Pro client service that needs to be enabled

  • uaclient.api.u.pro.security.fix import NoOpData

    Field Name	Type	Description
    status	str	The status of the USN when no operation can be performed

  • uaclient.api.u.pro.security.fix import PackageCannotBeInstalledData

    Field Name	Type	Description
    binary_package	str	The binary package that cannot be installed
    binary_package_version	str	The version of the binary package that cannot be installed
    source_package	str	The source package associated with the binary package

  • uaclient.api.u.pro.security.fix import SecurityIssueNotFixedData

    Field Name	Type	Description
    source_packages	List[str]	A list of source packages that cannot be fixed at the moment
    status	str	The status of the USN regarding those packages

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.pro.security.fix.usn.plan.v1 --data '{"usns": ["USN-1234-1", "USN-1235-1"]}'
  

• Expected attributes in JSON structure:

  {
     "usns_data": {
         "expected_status": "fixed",
         "usns": [
           {
               "related_usns_plan": [],
               "target_usn_plan": {
                   "title": "USN-1234-5",
                   "expected_status": "fixed",
                   "plan": [
                       {
                           "operation": "apt-upgrade",
                           "order": 1,
                           "data": {
                               "binary_packages": ["pkg1"],
                               "source_packages": ["pkg1"],
                           }
                       }
                   ],
                   "warnings": [],
                   "error": null
               },
           }
         ]
     }
  }
  

u.pro.security.status.livepatch_cves.v1

This endpoint lists Livepatch patches for the currently-running kernel.

• Introduced in Ubuntu Pro Client Version: 27.12~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.security.status.livepatch_cves.v1 import livepatch_cves
  
  result = livepatch_cves()
  

• Expected return object:

  • uaclient.api.u.pro.security.status.livepatch_cves.v1.LivepatchCVEsResult

    Field Name	Type	Description
    fixed_cves	list(LivepatchCVEObject)	List of Livepatch patches for the given system

  • uaclient.api.u.pro.security.status.livepatch_cves.v1.LivepatchCVEObject

    Field Name	Type	Description
    name	str	Name (ID) of the CVE
    patched	bool	Livepatch has patched the CVE

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.pro.security.status.livepatch_cves.v1
  

• Expected attributes in JSON structure:

{
    "fixed_cves":[
        {
            "name": "<CVE Name>",
            "patched": true
        },
        {
            "name": "<Other CVE Name>",
            "patched": false
        },
    ],
}

u.pro.security.status.reboot_required.v1

This endpoint informs if the system should be rebooted or not. Possible outputs are:

1. yes: The system should be rebooted.

2. no: There is no need to reboot the system.

3. yes-kernel-livepatches-applied: There are Livepatch patches applied to the current kernel, but a reboot is required for an update to take place. This reboot can wait until the next maintenance window.

• Introduced in Ubuntu Pro Client Version: 27.12~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.security.status.reboot_required.v1 import reboot_required
  
  result = reboot_required()
  

• Expected return object:

  • uaclient.api.u.pro.security.status.reboot_required.v1.RebootRequiredResult

    Field Name	Type	Description
    reboot_required	str	One of the descriptive strings indicating if the system should be rebooted

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.pro.security.status.reboot_required.v1
  

• Expected attributes in JSON structure:

  {
      "reboot_required": "yes|no|yes-kernel-livepatches-applied"
  }
  

u.pro.packages.summary.v1

This endpoint shows a summary of installed packages in the system, categorised by origin.

• Introduced in Ubuntu Pro Client Version: 27.12~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.packages.summary.v1 import summary
  
  result = summary()
  

• Expected return object:

  • uaclient.api.u.pro.packages.summary.v1.PackageSummaryResult

    Field Name	Type	Description
    summary	PackageSummary	Summary of all installed packages

  • uaclient.api.u.pro.packages.summary.v1.PackageSummary

    Field Name	Type	Description
    num_installed_packages	int	Total count of installed packages
    num_esm_apps_packages	int	Count of packages installed from esm-apps
    num_esm_infra_packages	int	Count of packages installed from esm-infra
    num_main_packages	int	Count of packages installed from main
    num_multiverse_packages	int	Count of packages installed from multiverse
    num_restricted_packages	int	Count of packages installed from restricted
    num_third_party_packages	int	Count of packages installed from third party sources
    num_universe_packages	int	Count of packages installed from universe
    num_unknown_packages	int	Count of packages installed from unknown sources

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.pro.packages.summary.v1
  

• Expected attributes in JSON structure:

  {
      "summary":{
          "num_installed_packages": 1,
          "num_esm_apps_packages": 2,
          "num_esm_infra_packages": 3,
          "num_main_packages": 4,
          "num_multiverse_packages": 5,
          "num_restricted_packages": 6,
          "num_third_party_packages": 7,
          "num_universe_packages": 8,
          "num_unknown_packages": 9,
      },
  }
  

u.pro.packages.updates.v1

This endpoint shows available updates for packages in a system, categorised by where they can be obtained.

• Introduced in Ubuntu Pro Client Version: 27.12~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.packages.updates.v1 import updates
  
  result = updates()
  

• Expected return object:

  • uaclient.api.u.pro.packages.updates.v1.PackageUpdatesResult

    Field Name	Type	Description
    summary	UpdateSummary	Summary of all available updates
    updates	list(UpdateInfo)	Detailed list of all available updates

  • uaclient.api.u.pro.packages.updates.v1.UpdateSummary

    Field Name	Type	Description
    num_updates	int	Total count of available updates
    num_esm_apps_updates	int	Count of available updates from esm-apps
    num_esm_infra_updates	int	Count of available updates from esm-infra
    num_standard_security_updates	int	Count of available updates from the -security pocket
    num_standard_updates	int	Count of available updates from the -updates pocket

  • uaclient.api.u.pro.packages.updates.v1.UpdateInfo

    Field Name	Type	Description
    download_size	int	Download size for the update in bytes
    origin	str	Where the update is downloaded from
    package	str	Name of the package to be updated
    provided_by	str	Service which provides the update
    status	str	Whether this update is ready for download or not
    version	str	Version of the update

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.pro.packages.updates.v1
  

• Expected attributes in JSON structure:

  {
      "summary":{
          "num_updates": 1,
          "num_esm_apps_updates": 2,
          "num_esm_infra_updates": 3,
          "num_standard_security_updates": 4,
          "num_standard_updates": 5,
      },
      "updates":[
          {
              "download_size": 6,
              "origin": "<some site>",
              "package": "<package name>",
              "provided_by": "<service name>",
              "status": "<update status>",
              "version": "<updated version>",
          },
      ]
  }
  

u.pro.status.is_attached.v1

This endpoint shows if the machine is attached to a Pro subscription.

• Introduced in Ubuntu Pro Client Version: 28~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.status.is_attached.v1 import is_attached
  
  result = is_attached()
  

• Expected return object:

  • uaclient.api.u.pro.status.is_attached.v1.IsAttachedResult

    Field Name	Type	Description
    is_attached	bool	If the machine is attached to a Pro subscription

CLI interaction

• Calling from the CLI:

  pro api u.pro.status.is_attached.v1
  

u.pro.status.enabled_services.v1

This endpoint shows the Pro services that are enabled on the machine.

• Introduced in Ubuntu Pro Client Version: 28~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.pro.status.enabled_services.v1 import enabled_services
  
  result = enabled_services()
  

• Expected return object:

  • uaclient.api.u.pro.status.enabled_services.v1.EnabledServicesResult

    Field Name	Type	Description
    enabled_services	List[EnabledService]	A list of EnabledService objects

  • uaclient.api.u.pro.status.enabled_services.v1.EnabledService

    Field Name	Type	Description
    name	str	Name of the service. Possible values are: cc-eal, cis, esm-apps, esm-infra, fips, fips-updates, livepatch, realtime-kernel, ros, ros-updates. When usg is enabled, this value will be cis.
    variant_enabled	bool	If a variant of the service is enabled
    variant_name	Optional[str]	Name of the variant, if a variant is enabled

CLI interaction

• Calling from the CLI:

  pro api u.pro.status.enabled_services.v1
  

u.apt_news.current_news.v1

This endpoint returns the current APT News that gets displayed in apt upgrade.

• Introduced in Ubuntu Pro Client Version: 29~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.apt_news.current_news.v1 import current_news
  
  result = current_news().current_news
  

• Expected return object:

  • uaclient.api.u.apt_news.current_news.v1.CurrentNewsResult

    Field Name	Type	Description
    current_news	Optional[str]	The current APT News to be displayed for the system. This could be a str with up to three lines (i.e. up to two \n characters). If there is no APT News to be displayed, this will be None.

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.apt_news.current_news.v1
  

• Expected attributes in JSON structure:

  {
      "current_news":"This is a news message.\nThis is the second line of the message.\nAnd this is the third line."
  }
  

u.security.package_manifest.v1

This endpoint returns the status of installed packages (apt and snap), formatted as a manifest file (i.e., package_name\tversion).

• Introduced in Ubuntu Pro Client Version: 27.12~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.security.package_manifest.v1 import package_manifest
  
  result = package_manifest()
  

• Expected return object:

  • uaclient.api.u.security.package_manifest.v1.PackageManifestResult

    Field Name	Type	Description
    manifest_data	str	Manifest of apt and snap packages installed on the system

• Raised exceptions:

  • No exceptions raised by this endpoint.

CLI interaction

• Calling from the CLI:

  pro api u.security.package_manifest.v1
  

• Expected attributes in JSON structure:

  {
      "package_manifest":"package1\t1.0\npackage2\t2.3\n"
  }
  

u.unattended_upgrades.status.v1

This endpoint returns the status around unattended-upgrades. The focus of the endpoint is to verify if the application is running and how it is configured on the machine.

Important

For this endpoint, we deliver a unique key under meta called raw_config. This field contains all related unattended-upgrades configurations, unparsed. This means that this field will maintain both original name and values for those configurations.

• Introduced in Ubuntu Pro Client Version: 27.14~

• Args:

  • This endpoint takes no arguments.

Python API interaction

• Calling from Python code:

  from uaclient.api.u.unattended_upgrades.status.v1 import status
  
  result = status()
  

• Expected return object:

  • uaclient.api.u.unattended_upgrades.status.v1.UnattendedUpgradesStatusResult

    Field Name	Type	Description
    systemd_apt_timer_enabled	bool	Indicate if the apt-daily.timer jobs are enabled
    apt_periodic_job_enabled	bool	Indicate if the APT::Periodic::Enabled configuration is turned off
    package_lists_refresh_frequency_days	int	The value of the APT::Periodic::Update-Package-Lists configuration
    unattended_upgrades_frequency_days	int	The value of the APT::Periodic::Unattended-Upgrade configuration
    unattended_upgrades_allowed_origins	List[str]	The value of the Unattended-Upgrade::Allowed-Origins configuration
    unattended_upgrades_running	bool	Indicate if the unattended-upgrade service is correctly configured and running
    unattended_upgrades_disabled_reason	object	Object that explains why unattended-upgrades is not running – if the application is running, the object will be null
    unattended_upgrades_last_run	datetime.datetime	The last time unattended-upgrades ran

  • uaclient.api.u.unattended_upgrades.status.v1.UnattendedUpgradesStatusDisabledReason

    Field Name	Type	Description
    msg	str	The reason why unattended-upgrades is not running on the system
    code	str	The message code associated with the message

• Raised exceptions:

  • UnattendedUpgradesError: Raised if we cannot run a necessary command to show the status of unattended-upgrades.

CLI interaction

• Calling from the CLI:

  pro api u.unattended_upgrades.status.v1
  

• Expected attributes in JSON structure:

  {
      "apt_periodic_job_enabled": true,
      "package_lists_refresh_frequency_days": 1,
      "systemd_apt_timer_enabled": true,
      "unattended_upgrades_allowed_origins": [
        "${distro_id}:${distro_codename}",
        "${distro_id}:${distro_codename}-security",
        "${distro_id}ESMApps:${distro_codename}-apps-security",
        "${distro_id}ESM:${distro_codename}-infra-security"
      ],
      "unattended_upgrades_disabled_reason": null,
      "unattended_upgrades_frequency_days": 1,
      "unattended_upgrades_last_run": null,
      "unattended_upgrades_running": true
  }
  

• Possible attributes in JSON meta field:

  {
      "meta": {
        "environment_vars": [],
        "raw_config": {
          "APT::Periodic::Enable": "1",
          "APT::Periodic::Unattended-Upgrade": "1",
          "APT::Periodic::Update-Package-Lists": "1",
          "Unattended-Upgrade::Allowed-Origins": [
            "${distro_id}:${distro_codename}",
            "${distro_id}:${distro_codename}-security",
            "${distro_id}ESMApps:${distro_codename}-apps-security",
            "${distro_id}ESM:${distro_codename}-infra-security"
          ]
        }
      }
  }