Deploy to aks

azure-vote/Dockerfile

@@ -7,5 +7,6 @@ RUN pip install opencensus-ext-azure
 RUN pip install opencensus-ext-flask
 RUN pip install opencensus-ext-logging
 RUN pip install flask
+RUN pip install opencensus-ext-requests
 # Copy the content of the current directory to the /app of the container
 ADD . /app

azure-vote/main.py

@@ -8,21 +8,56 @@
 from datetime import datetime
 
 # App Insights
-# TODO: Import required libraries for App Insights
+from opencensus.ext.azure.log_exporter import AzureLogHandler
+from opencensus.ext.azure.log_exporter import AzureEventHandler
+from opencensus.ext.azure import metrics_exporter
+from opencensus.stats import aggregation as aggregation_module
+from opencensus.stats import measure as measure_module
+from opencensus.stats import stats as stats_module
+from opencensus.stats import view as view_module
+from opencensus.tags import tag_map as tag_map_module
+from opencensus.trace import config_integration
+from opencensus.ext.azure.trace_exporter import AzureExporter
+from opencensus.trace.samplers import ProbabilitySampler
+from opencensus.trace.tracer import Tracer
+from opencensus.ext.flask.flask_middleware import FlaskMiddleware
+# For metrics
+stats = stats_module.stats
+view_manager = stats.view_manager
 
 # Logging
-logger = # TODO: Setup logger
+config_integration.trace_integrations(['logging'])
+config_integration.trace_integrations(['requests'])
+# Standard Logging
+logger = logging.getLogger(__name__)
+handler = AzureLogHandler(connection_string='InstrumentationKey=a5ab3fd1-7295-40ce-9752-dda04163d715')
+handler.setFormatter(logging.Formatter('%(traceId)s %(spanId)s %(message)s'))
+logger.addHandler(handler)
+# Logging custom Events 
+logger.addHandler(AzureEventHandler(connection_string='InstrumentationKey=a5ab3fd1-7295-40ce-9752-dda04163d715'))
+# Set the logging level
+logger.setLevel(logging.INFO)
 
 # Metrics
-exporter = # TODO: Setup exporter
+exporter = metrics_exporter.new_metrics_exporter(
+enable_standard_metrics=True,
+connection_string='InstrumentationKey=a5ab3fd1-7295-40ce-9752-dda04163d715')
+view_manager.register_exporter(exporter)
 
 # Tracing
-tracer = # TODO: Setup tracer
-
+tracer = Tracer(
+    exporter=AzureExporter(
+        connection_string='InstrumentationKey=a5ab3fd1-7295-40ce-9752-dda04163d715'),
+    sampler=ProbabilitySampler(1.0),
+)
 app = Flask(__name__)
 
 # Requests
-middleware = # TODO: Setup flask middleware
+middleware = FlaskMiddleware(
+    app,
+    exporter=AzureExporter(connection_string="InstrumentationKey=a5ab3fd1-7295-40ce-9752-dda04163d715"),
+    sampler=ProbabilitySampler(rate=1.0)
+)
 
 # Load configurations from environment or config file
 app.config.from_pyfile('config_file.cfg')
@@ -42,8 +77,20 @@
 else:
     title = app.config['TITLE']
 
-# Redis Connection
-r = redis.Redis()
+# Redis configurations
+redis_server = os.environ['REDIS']
+
+# Redis Connection to another container
+try:
+    if "REDIS_PWD" in os.environ:
+        r = redis.StrictRedis(host=redis_server,
+                        port=6379,
+                        password=os.environ['REDIS_PWD'])
+    else:
+        r = redis.Redis(redis_server)
+    r.ping()
+except redis.ConnectionError:
+    exit('Failed to connect to Redis, terminating.')
 
 # Change title to host name to demo NLB
 if app.config['SHOWHOST'] == "true":
@@ -60,9 +107,15 @@ def index():
 
         # Get current values
         vote1 = r.get(button1).decode('utf-8')
-        # TODO: use tracer object to trace cat vote
-        vote2 = r.get(button2).decode('utf-8')
-        # TODO: use tracer object to trace dog vote
+        with tracer.span(name='Cat vote') as span:
+            vote1 = r.get(button1).decode('utf-8')
+            properties = {'custom_dimensions': {'Cats Vote': vote1}}
+            span.add_attribute('custom_dimensions', properties)
+            vote2 = r.get(button2).decode('utf-8')
+        with tracer.span(name='Dog vote') as span:
+            vote2 = r.get(button2).decode('utf-8')
+            properties = {'custom_dimensions': {'Dogs Vote': vote2}}
+            span.add_attribute('custom_dimensions', properties)
 
         # Return index with values
         return render_template("index.html", value1=int(vote1), value2=int(vote2), button1=button1, button2=button2, title=title)
@@ -76,11 +129,11 @@ def index():
             r.set(button2,0)
             vote1 = r.get(button1).decode('utf-8')
             properties = {'custom_dimensions': {'Cats Vote': vote1}}
-            # TODO: use logger object to log cat vote
+            logger.info('Cat vote recorded', extra=properties)
 
             vote2 = r.get(button2).decode('utf-8')
             properties = {'custom_dimensions': {'Dogs Vote': vote2}}
-            # TODO: use logger object to log dog vote
+            logger.info('Dog vote recored', extra=properties)
 
             return render_template("index.html", value1=int(vote1), value2=int(vote2), button1=button1, button2=button2, title=title)
 

docker-compose.yaml

@@ -2,6 +2,7 @@ version: '3'
 services:
   azure-vote-back:
     image: mcr.microsoft.com/oss/bitnami/redis:6.0.8
+    platform: linux/amd64
     container_name: azure-vote-back
     environment:
       ALLOW_EMPTY_PASSWORD: "yes"

requirements.txt

@@ -1,6 +1,27 @@
+cachetools==5.4.0
+certifi==2024.7.4
+charset-normalizer==3.3.2
+click==8.1.7
 Flask==1.1.2
+google-api-core==1.34.1
+google-auth==2.33.0
+googleapis-common-protos==1.63.2
+idna==3.7
+itsdangerous==1.1.0
+Jinja2==3.0.3
+MarkupSafe==2.1.5
+opencensus==0.7.13
+opencensus-context==0.1.2
 opencensus-ext-azure==1.0.4
 opencensus-ext-flask==0.7.3
-redis==3.5.3
-opencensus==0.7.13
 opencensus-ext-logging==0.1.0
+protobuf==3.20.3
+psutil==6.0.0
+pyasn1==0.6.0
+pyasn1_modules==0.4.0
+redis==3.5.3
+requests==2.32.3
+rsa==4.9
+six==1.16.0
+urllib3==2.2.2
+Werkzeug==0.16.1