180 lines
6.7 KiB
Python
180 lines
6.7 KiB
Python
import streamlit as st
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import pandas as pd
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import re
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from azure.identity import DefaultAzureCredential
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from azure.mgmt.resource import SubscriptionClient
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from azure.mgmt.compute import ComputeManagementClient
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from jinja2 import Template, Environment, FileSystemLoader
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import json
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from os import getenv
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from dotenv import load_dotenv
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load_dotenv()
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def is_valid(key_name: str):
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return key_name in st.session_state and st.session_state[key_name] is not None and len(st.session_state[key_name]) > 0
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def is_valid_and_not_equal(key_name: str, value: str):
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return key_name in st.session_state and st.session_state[key_name] != value
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def clear_offers():
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if 'offers' in st.session_state: del st.session_state.offers
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if 'selected_offer' in st.session_state: del st.session_state.selected_offer
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clear_skus()
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def clear_skus():
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if 'skus' in st.session_state: del st.session_state.skus
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if 'selected_sku' in st.session_state: del st.session_state.selected_sku
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clear_image_versions()
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def clear_image_versions():
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if 'image_versions' in st.session_state: del st.session_state.image_versions
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if 'selected_image_version' in st.session_state: del st.session_state.selected_image_version
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def on_publisher_changed():
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clear_offers()
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def on_offer_changed():
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clear_skus()
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def on_sku_changed():
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clear_skus()
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def on_image_version_changed():
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clear_image_versions()
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def version_key(v):
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return [int(x) for x in v.split('.')]
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@st.cache_data
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def get_publishers(location: str):
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return [publisher.name for publisher in compute_client.virtual_machine_images.list_publishers(location)]
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@st.cache_data
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def get_offers(location: str, publisher: str):
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return [offer.name for offer in compute_client.virtual_machine_images.list_offers(location, publisher)]
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@st.cache_data
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def get_skus(location: str, publisher: str, offer: str):
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return [sku.name for sku in compute_client.virtual_machine_images.list_skus(location, publisher, offer)]
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@st.cache_data
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def get_image_versions(location: str, publisher: str, offer: str, sku: str):
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return [version.name for version in compute_client.virtual_machine_images.list(location, publisher, offer, sku)]
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@st.cache_data
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def get_locations():
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subscription_client = SubscriptionClient(credential)
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locations = sorted(subscription_client.subscriptions.list_locations(getenv('AZURE_SUBSCRIPTION_ID')), key=lambda l: l.name)
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return [
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loc for loc in locations
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if loc.metadata.region_type == 'Physical'
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]
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def usage_scenario_label(item):
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return item['label']
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subscription_id = getenv("AZURE_SUBSCRIPTION_ID")
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default_location = getenv("AZURE_LOCATION", "westeurope")
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credential = DefaultAzureCredential()
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locations = get_locations()
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compute_client = ComputeManagementClient(credential, subscription_id)
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st.set_page_config(page_title='Azure Image Chooser', layout='wide')
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st.title('Azure Image Chooser')
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location_cols = st.columns(4)
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location = location_cols[0].selectbox('Select Azure Location',
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options=[{"name": loc.name, "display_name": loc.display_name} for loc in locations],
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index=locations.index(next((l for l in locations if l.name == default_location), default_location)),
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format_func=lambda loc: loc['display_name']
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)['name']
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publisher_col, offer_col, sku_col, version_col = st.columns(4)
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# Publishers
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if 'publishers' not in st.session_state:
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st.session_state.publishers = get_publishers(location)
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clear_offers()
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if is_valid('publishers'):
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st.session_state.selected_publisher = publisher_col.selectbox('Select Publisher', options=st.session_state.publishers, on_change=on_publisher_changed, index=None)
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else:
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st.error("No publishers found. Please check your Azure subscription and location.")
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# st.stop()
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# Offers
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if 'offers' not in st.session_state and is_valid('selected_publisher'):
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st.session_state.offers = get_offers(location, st.session_state.selected_publisher)
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if is_valid('offers'):
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st.session_state.selected_offer = offer_col.selectbox('Select Offer', options=st.session_state.offers, on_change=on_offer_changed, index=None)
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elif is_valid('selected_publisher'):
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st.info("No offers found for the selected publisher. Please select a different publisher.")
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# st.stop()
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# else:
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# st.stop()
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# SKUs
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if 'skus' not in st.session_state and is_valid('selected_publisher') and is_valid('selected_offer'):
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st.session_state.skus = get_skus(location, st.session_state.selected_publisher, st.session_state.selected_offer)
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if is_valid('skus'):
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st.session_state.selected_sku = sku_col.selectbox('Select SKU', options=st.session_state.skus, on_change=on_sku_changed, index=None)
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elif is_valid('selected_offer'):
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st.info("No SKUs found for the selected offer. Please select a different offer.")
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# st.stop()
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# else:
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# st.stop()
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# Image versions
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if 'image_versions' not in st.session_state and is_valid('selected_publisher') and is_valid('selected_offer') and is_valid('selected_sku'):
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image_versions = get_image_versions(location, st.session_state.selected_publisher, st.session_state.selected_offer, st.session_state.selected_sku)
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# Check if all image version string match the re.
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regex = re.compile(r'^[0-9]+\.[0-9]+\.[0-9]+$')
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if all(regex.match(version) for version in image_versions):
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image_versions = sorted(image_versions, key=version_key)
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st.session_state.image_versions = image_versions
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if is_valid('image_versions'):
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st.session_state.selected_image_version = version_col.selectbox('Select Image Version', options=st.session_state.image_versions, index=None)
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elif is_valid('selected_sku'):
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st.info("No image versions found for the selected SKU. Please select a different SKU.")
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# st.stop()
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# else:
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# st.stop()
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if is_valid('selected_image_version'):
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st.subheader("Usage example")
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with open("templates.json") as f:
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templates = json.load(f)
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layout = st.columns(4)
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selected_file = layout[0].selectbox('Select usage scenario:', options=templates, format_func=usage_scenario_label)
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env = Environment(loader=FileSystemLoader("templates"))
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tpl = env.get_template(selected_file['file'])
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rendered = tpl.render(
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publisher=st.session_state.selected_publisher,
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offer=st.session_state.selected_offer,
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sku=st.session_state.selected_sku,
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version=st.session_state.selected_image_version
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)
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st.code(rendered, language=selected_file['language'])
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if is_valid('selected_publisher') and is_valid('selected_offer') and is_valid('skus'):
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sku_list = '[\n' + ',\n'.join(f'\t"{sku}"' for sku in st.session_state['skus']) +'\n]'
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st.subheader('Available SKUs')
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st.markdown('The below HCL code is suitable to be used as SKU validation set.')
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st.code(sku_list)
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