Raise minimum supported python version to 3.9 (#1887)

Author: wpessers

.github/workflows/ci-python.yml

@@ -31,7 +31,7 @@ jobs:
       matrix:
         # If you add a python version here, please make sure that the collector/Makefile publish and publish-layer targets
         # get updated as well
-        python: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
       - name: Checkout this repo

.github/workflows/publish-layer-collector.yml

@@ -128,7 +128,7 @@ jobs:
       artifact-name: opentelemetry-collector-layer-${{ matrix.architecture }}.zip
       layer-name: opentelemetry-collector
       architecture: ${{ matrix.architecture }}
-      runtimes: "nodejs16.x nodejs18.x nodejs20.x nodejs22.x java11 java17 java21 python3.8 python3.9 python3.10 python3.11 python3.12 python3.13"
+      runtimes: "nodejs16.x nodejs18.x nodejs20.x nodejs22.x java11 java17 java21 python3.9 python3.10 python3.11 python3.12 python3.13"
       release-group: prod
       aws_region: ${{ matrix.aws_region }}
       role-arn: ${{ github.event.inputs.role-arn }}

collector/Makefile

@@ -47,12 +47,12 @@ package: build
 
 .PHONY: publish
 publish:
-	aws lambda publish-layer-version --layer-name $(LAYER_NAME) --zip-file fileb://$(BUILD_SPACE)/opentelemetry-collector-layer-$(GOARCH).zip --compatible-runtimes nodejs16.x nodejs18.x nodejs20.x nodejs22.x java11 java17 java21 python3.8 python3.9 python3.10 python3.11 python3.12 python3.13 --query 'LayerVersionArn' --output text
+	aws lambda publish-layer-version --layer-name $(LAYER_NAME) --zip-file fileb://$(BUILD_SPACE)/opentelemetry-collector-layer-$(GOARCH).zip --compatible-runtimes nodejs16.x nodejs18.x nodejs20.x nodejs22.x java11 java17 java21 python3.9 python3.10 python3.11 python3.12 python3.13 --query 'LayerVersionArn' --output text
 
 .PHONY: publish-layer
 publish-layer: package
 	@echo Publishing collector extension layer...
-	aws lambda publish-layer-version --layer-name $(LAYER_NAME) --zip-file fileb://$(BUILD_SPACE)/opentelemetry-collector-layer-$(GOARCH).zip --compatible-runtimes nodejs16.x nodejs18.x nodejs20.x nodejs22.x java11 java17 java21 python3.8 python3.9 python3.10 python3.11 python3.12 python3.13 --query 'LayerVersionArn' --output text
+	aws lambda publish-layer-version --layer-name $(LAYER_NAME) --zip-file fileb://$(BUILD_SPACE)/opentelemetry-collector-layer-$(GOARCH).zip --compatible-runtimes nodejs16.x nodejs18.x nodejs20.x nodejs22.x java11 java17 java21 python3.9 python3.10 python3.11 python3.12 python3.13 --query 'LayerVersionArn' --output text
 	@echo OpenTelemetry Collector layer published.
 
 .PHONY: set-otelcol-version

python/sample-apps/template.yml

@@ -42,7 +42,6 @@ Resources:
       Description: Opentelemetry Python layer
       ContentUri: ./otel
       CompatibleRuntimes:
-        - python3.8
         - python3.9
         - python3.10
         - python3.11

python/src/template.yml

@@ -14,7 +14,6 @@ Resources:
       Description: Opentelemetry Python layer
       ContentUri: ./otel
       CompatibleRuntimes:
-        - python3.8
         - python3.9
         - python3.10
         - python3.11

python/src/tox.ini

@@ -1,9 +1,9 @@
 [tox]
 envlist =
     ; opentelemetry-instrumentation-aws-lambda
-    py3{8,9,10,11,12}-test-instrumentation-aws-lambda
+    py3{9,10,11,12}-test-instrumentation-aws-lambda
 
-minversion = 3.8
+minversion = 3.9
 
 skip_missing_interpreters = True