OMI Python Script Provider

Additional Resources

• Script Provider Getting Started Guide

Supported Linux Operating Systems

We support most Linux platforms which support python2.7 by default. That said, our formal tested matrix of Linux platforms includes the following:

• CentOS 7 x64
• Debian 7, 8 (x86 and x64) and Debian 9 x64
• Oracle Linux 7 x64
• Red Hat Enterprise Linux Server 7 x64
• SUSE Linux Enteprise Server 12 x64
• Ubuntu 12.04 LTS, 14.04 LTS, and 16.04 LTS (x86 and x64)

New Python versions beta support

The master branch of omi-script-provider now includes beta support for the following Python versions:

• Python 2.6
• Python 3.4
• Python 3.5
• Python 3.6

How to build

Dependencies to build OMI Python Script Provider:

Before you build OMI Python Script Provider, you should check OMI_Build_Dependencies, then you can build the provider as following:

• Install python and python-devel
  • Redhat/CentOS:

    sudo yum update
    sudo yum install python27 python27-devel
    

  • Debian/Ubuntu OS:

    sudo apt-get update
    sudo apt-get install python2.7 python2.7-dev 
    

    Note: If you use old OS version like Ubuntu 12.04 or Ubuntu 14.04, you might need to run command:sudo add-apt-repository ppa:fkrull/deadsnakes to get python to be installed.

To clone the repository to build OMI Python Script Provider, issue the following commands:

git clone --recursive https://github.com/Microsoft/Build-omi-script-provider
cd Build-omi-script-provider/omi/Unix
./configure --dev
make -j
make install
cd ../../scriptprovider
./configure
make
sudo make install

Developing an OMI Python Script Provider

To develop an OMI Python Script Provider, the OMI is required to be built in the developer mode. Please refer to How to build in order to do that.

After building the project, we need to define "schema.mof" and to generate the Provider Sources from it. We need to create first a directory under the lib directory of the OMI. For the developer build, this will be Build-omi-script-provider/omi/Unix/output/lib. If the OMI was installed with a package, the root library location is /opt/omi/lib. Replace the path with the one that applies for your environment, in our case will be the first one since we built it from source.

> cd Build-omi-script-provider/omi/Unix/output/lib
> mkdir XYZ_Frog
> cd XYZ_Frog

Example of "schema.mof" file:

class XYZ_Frog
{
 [Key] String Name;
 Uint32 Weight;
 String Color;
};

In order to generate the Provider Sources from the schema file, we need to run omigen_py:

> ../../../../../scriptprovider/output/bin/omigen_py schema.mof XYZ_Frog
Creating "schema.py"
Creating "mi_main.py"

The omigen_py tool will generate the files schema.py and mi_main.py.

The file mi_main.py will be edited in order to implement the custom python provider. Please refer to Script Provider Getting Started Guide for more details.

We can now register the Python Provider using the omireg command:

> ../../bin/omireg --Python XYZ_Frog
Created /home/ubuntu/docs_update/Build-omi-script-provider/omi/Unix/output/etc/omiregister/root-cimv2/XYZ_Frog.reg

Supported operations for OMI Python Script Provider

Currently, OMI Python Script Provider supports these operations: enumerate, create, modify, get, delete, invoke.

enumerate operation:

/opt/omi/bin/omicli ei root/cimv2 Hosts
instance of Hosts
{
    [Key] FQDN=localhost
    IPAddress=127.0.0.1
}
instance of Hosts
{
    [Key] FQDN=omi64ub16-dev1
    IPAddress=10.226.210.177
}
instance of Hosts
{
    [Key] FQDN=localhost ip6-localhost ip6-loopback
    IPAddress=::1
}
instance of Hosts
{
    [Key] FQDN=ip6-allnodes
    IPAddress=ff02::1
}
instance of Hosts
{
    [Key] FQDN=ip6-allrouters
    IPAddress=ff02::2
}

create operation:

/opt/omi/bin/omicli ci root/cimv2 { Hosts FQDN 'omi64-cent7-01.scx.com' IPAddress '10.226.158.99' }

modify operation:

/opt/omi/bin/omicli mi root/cimv2 { Hosts FQDN 'omi64-cent7-01.scx.com' IPAddress '10.226.158.100' }
instance of Hosts
{
    [Key] FQDN=omi64-cent7-01.scx.com
    IPAddress=10.226.158.100
}

get operation:

/opt/omi/bin/omicli gi root/cimv2 { Hosts FQDN 'omi64-cent7-01.scx.com' }
instance of Hosts
{
    [Key] FQDN=omi64-cent7-01.scx.com
    IPAddress=10.226.158.100
}

delete operation:

/opt/omi/bin/omicli di root/cimv2 { Hosts FQDN 'omi64-cent7-01.scx.com' }

invoke operation:

/opt/omi/bin/omicli iv root/cimv2 { OMI_Tester *Key "ONE" } Func1 { In1 "test" }
instance of Func1
{
    Out1=ONE
    Out2=1
    Out3=true
    ReturnValue=0
}

Contributing

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.