Add checksum for latest artifact to metadata file

.github/workflows/post_release_version_bump.yml

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+name: Post Release - Prepare Main for Next Development Cycle
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version number (e.g., 1.0.1)'
+        required: true
+
+env:
+  AWS_DEFAULT_REGION: us-east-1
+
+permissions:
+  id-token: write
+  contents: write
+  pull-requests: write
+
+jobs:
+  check-version:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v2
+        with:
+          ref: main
+          fetch-depth: 0
+
+      - name: Extract Major.Minor Version and setup Env variable
+        run: |
+          echo "VERSION=${{ github.event.inputs.version }}" >> $GITHUB_ENV
+          echo "MAJOR_MINOR=$(echo ${{ github.event.inputs.version }} | sed -E 's/([0-9]+\.[0-9]+)\.[0-9]+/\1/')" >> $GITHUB_ENV
+
+      - name: Get current major.minor version from main branch
+        id: get_version
+        run: |
+          CURRENT_VERSION=$(grep 'public final String VERSION' awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/ArtifactVersion.java | sed -E 's/  public final String VERSION = "([0-9]+\.[0-9]+)\.[0-9]+.*";/\1/')
+          echo "CURRENT_MAJOR_MINOR_VERSION=$CURRENT_VERSION" >> $GITHUB_ENV
+
+      - name: Set major and minor for current version
+        run: |
+          echo "CURRENT_MAJOR=$(echo $CURRENT_MAJOR_MINOR_VERSION | cut -d. -f1)" >> $GITHUB_ENV
+          echo "CURRENT_MINOR=$(echo $CURRENT_MAJOR_MINOR_VERSION | cut -d. -f2)" >> $GITHUB_ENV
+
+      - name: Set major and minor for input version
+        run: |
+          echo "INPUT_MAJOR=$(echo $MAJOR_MINOR | cut -d. -f1)" >> $GITHUB_ENV
+          echo "INPUT_MINOR=$(echo $MAJOR_MINOR | cut -d. -f2)" >> $GITHUB_ENV
+
+      - name: Compare major.minor version and skip if behind
+        run: |
+          if [ "$CURRENT_MAJOR" -gt "$INPUT_MAJOR" ] || { [ "$CURRENT_MAJOR" -eq "$INPUT_MAJOR" ] && [ "$CURRENT_MINOR" -gt "$INPUT_MINOR" ]; }; then
+            echo "Input version is behind main's current major.minor version, don't need to update major version"
+            exit 1
+          fi
+
+  prepare-main:
+    runs-on: ubuntu-latest
+    needs: check-version
+    steps:
+      - name: Configure AWS credentials for BOT secrets
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ secrets.AWS_ROLE_ARN_SECRETS_MANAGER }}
+          aws-region: ${{ env.AWS_DEFAULT_REGION }}
+
+      - name: Get Bot secrets
+        uses: aws-actions/aws-secretsmanager-get-secrets@v1
+        id: bot_secrets
+        with:
+          secret-ids: |
+            BOT_TOKEN ,${{ secrets.BOT_TOKEN_SECRET_ARN }}
+          parse-json-secrets: true
+
+      - name: Setup Git
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+          token: ${{ env.BOT_TOKEN_GITHUB_RW_PATOKEN }}
+
+      - name: Configure Git
+        run: |
+          git config user.name "github-actions"
+          git config user.email "github-actions@github.com"
+
+      - name: Extract Major.Minor Version and setup Env variable
+        run: |
+          echo "VERSION=${{ github.event.inputs.version }}" >> $GITHUB_ENV
+          echo "MAJOR_MINOR=$(echo ${{ github.event.inputs.version }} | sed -E 's/([0-9]+\.[0-9]+)\.[0-9]+/\1/')" >> $GITHUB_ENV
+
+      - name: Determine release branch and checkout
+        run: |
+          RELEASE_BRANCH="release/v${MAJOR_MINOR}.x"
+          git fetch origin $RELEASE_BRANCH
+          git checkout -b "prepare-main-for-next-dev-cycle-${VERSION}" origin/$RELEASE_BRANCH
+
+      - name: Update version to next development version in main
+        run: |
+          DEV_VERSION="${{ github.event.inputs.version }}.dev0"
+          sed -i "s/public final String VERSION = \".*\";/public final String VERSION = \"${DEV_VERSION}\";/" awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/ArtifactVersion.java
+          VERSION="${{ github.event.inputs.version }}"
+          git add awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/ArtifactVersion.java
+
+      - name: Append latest release checksum to release-artifacts-metadata.json
+        run: |
+          ARTIFACT_NAME="aws-opentelemetry-agent.jar"
+          curl -L -o $ARTIFACT_NAME https://github.com/aws-observability/aws-otel-java-instrumentation/releases/download/v${{ github.event.inputs.version }}/$ARTIFACT_NAME
+
+          CHECKSUM=$(shasum -a 256 $ARTIFACT_NAME | awk '{ print $1 }')
+
+          FILE="release-artifacts-metadata.json"
+          UPDATED_JSON=$(jq --arg version "${{ env.VERSION }}" \
+                            --arg name "$ARTIFACT_NAME" \
+                            --arg checksum "$CHECKSUM" \
+                            '.release += [{"version": $version, "checksum": [{"name": $name, "checksum": $checksum}]}]' "$FILE")
+
+          echo "$UPDATED_JSON" > "$FILE"
+          git add release-artifacts-metadata.json
+
+      - name: Push changes to Github
+        run: |
+          git commit -m "Prepare main for next development cycle: Update version to ${{ github.event.inputs.version }}"
+          git push --set-upstream origin "prepare-main-for-next-dev-cycle-${{ github.event.inputs.version }}"
+
+      - name: Create Pull Request to main
+        env:
+          GITHUB_TOKEN: ${{ env.BOT_TOKEN_GITHUB_RW_PATOKEN }}
+        run: |
+          DEV_VERSION="${{ github.event.inputs.version }}.dev0"
+          gh pr create --title "Post release $VERSION: Update version to $DEV_VERSION" \
+                       --body "This PR prepares the main branch for the next development cycle by updating the version to $DEV_VERSION and updating the image version to be scanned to the latest released.
+
+          This PR should only be merge when release for version v$VERSION is success.
+
+          By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice." \
+                       --head prepare-main-for-next-dev-cycle-${VERSION} \
+                       --base main

awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/ArtifactVersion.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package software.amazon.opentelemetry.javaagent.providers;
+
+public final class ArtifactVersion {
+  public final String VERSION = "1.32.6.dev0";
+}

release-artifacts-metadata.json

@@ -0,0 +1,13 @@
+{
+    "release": [
+        {
+            "version": "1.32.6",
+            "checksum": [
+                {
+                    "name": "aws-opentelemetry-agent.jar",
+                    "checksum": "ef24921dc263ffc2eff5ea8ba48c189adafd57e46d9ffa4f64b71fa3290cc6db"
+                }
+            ]
+        }
+    ]
+}