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.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) Anuket, Spirent, AT&T, Ixia and others.
============================================================
Automated deployment of helm charts with python
============================================================
********************
Directory Structure
********************
.. code-block:: console
├── charts
│ ├── mynet.yaml
│ ├── pod.yaml
│ ├── proxchart
│ │ ├── Chart.yaml
│ │ ├── templates
│ │ │ ├── daemonset.yaml
│ │ │ ├── deployment.yaml
│ │ │ └── service.yaml
│ │ └── values.yaml
│ ├── testpmdchart
│ │ ├── Chart.yaml
│ │ ├── templates
│ │ │ ├── daemonset.yaml
│ │ │ ├── deployment.yaml
│ │ │ └── service.yaml
│ │ └── values.yaml
│ └── trexchart
│ ├── Chart.yaml
│ ├── templates
│ │ ├── daemonset.yaml
│ │ ├── deployment.yaml
│ │ └── service.yaml
│ └── values.yaml
└── pyscript
├── Pipfile
├── Pipfile.lock
└── main.py
***************
Using the tool
***************
Charts folder contains three different charts - ``proxchart, testpmd chart and trex chart``. Any of the one can be used for testing.
Pyscript folder contains ``main.py`` - the main python script that depploys the helm chart of user's choice and returns important configuration of the charts, such as PodIP, Cluster IP, Interface IPs etc.
************************
Important Configurations
************************
In order to run the python script, we need to install Pipenv to create virtual environment.
Steps:
1. Install
.. code-block:: console
pip install --user pipenv
2. To activate the environment
.. code-block:: console
pipenv shell
The last command will automatically read Pipfile.lock and will create an virtual environment.
Once this configuration is done. We can move on to run our python script.
*************************************************
Procedure to automatically deploy the helm chart
*************************************************
Steps:
1. After activating your virtual environment, run the ``main.py``.
.. code-block:: console
python main.python
2. Enter the location of the chart you want to deploy.
For example, lets deploy proxchart
.. code-block:: console
Enter the location of helm chart: ../charts/proxchart
3. The last command will execute the entire ``main.py`` and will return all the required information about the chart.
*******
Output
*******
.. code-block:: console
Status of helm charts
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
proxchart default 1 2021-09-27 13:22:21.864816 +0530 IST deployed proxchart-0.1.0 1.0
----------------------------------------------------------------------------------------------------
POD DETAILS
┏━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━┳
┃ POD NAME ┃ NAMESPACE ┃ HOST-IP ┃ PHASE ┃ POD-IP ┃ POD-IPs ┃
┡━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━┩
│ prox-6db7c6dc9b-l42v4 │ default │ 192.168.49.2 │ Running │ 172.17.0.4 │ [{'ip': '172.17.0.4'}] │
└───────────────────────┴───────────┴──────────────┴─────────┴────────────┴────────────────────────┴
┏━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ POD NAME ┃ INTERFACE IPs ┃
┡━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┩
│ prox-6db7c6dc9b-l42v4 │ 127.0.0.1/8, 172.17.0.4/16, 127.0.0.1, 172.17.0.4, 172.17.255.255 │
└───────────────────────┴───────────────────────────────────────────────────────────────────┘
DEPLOYMENT DETAILS
┏━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━┓
┃ NAME ┃ Type ┃ CLUSTER-IP ┃ EXTERNAL-IP ┃ PORT(S) ┃
┡━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━┩
│ proxchart │ NodePort │ 10.103.156.83 │ {} │ 8081:31036/TCP │
└───────────┴──────────┴───────────────┴─────────────┴────────────────┘
********************
Future Enhancements
********************
In future, more information can be extracted by adding new functions to the file. The process of getting interfaces using regex can be made more proficient.
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