Apply technical requirements (R1, R2, R9, R10, R13)

mwunderl · mwunderl · commit 2528d7932e2a · 2026-04-21T05:17:16.000Z
- R1: Add AWS_REGION to region fallback chain
- R2: Replace openssl rand with /dev/urandom
- R9: Remove Appendix/Generation details from READMEs
- R10: Remove internal references
- R13: Add REVISION-HISTORY.md
diff --git a/tuts/094-aws-cloudtrail-gs/README.md b/tuts/094-aws-cloudtrail-gs/README.md
@@ -54,15 +54,3 @@ S3 storage only. CloudTrail delivers management event logs to S3 at no charge fo
 - [Amazon S3 bucket policy for CloudTrail](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/create-s3-bucket-policy-for-cloudtrail.html)
 - [Looking up events with LookupEvents](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/view-cloudtrail-events-cli.html)
 - [CloudTrail pricing](https://aws.amazon.com/cloudtrail/pricing/)
-
----
-
-## Appendix: Generation details
-
-| Field | Value |
-|-------|-------|
-| Generation date | 2026-04-14 |
-| Script lines | 110 |
-| Script test result | EXIT 0, 10s, 6 steps, no issues |
-| Issues encountered | None |
-| Iterations | v1 |
diff --git a/tuts/094-aws-cloudtrail-gs/REVISION-HISTORY.md b/tuts/094-aws-cloudtrail-gs/REVISION-HISTORY.md
@@ -0,0 +1,8 @@
+# Revision History: 094-aws-cloudtrail-gs
+
+## Shell (CLI script)
+
+### 2026-04-14 v1 published
+- Type: functional
+- Initial version
+
diff --git a/tuts/094-aws-cloudtrail-gs/aws-cloudtrail-gs.sh b/tuts/094-aws-cloudtrail-gs/aws-cloudtrail-gs.sh
@@ -16,7 +16,7 @@ ACCOUNT_ID=$(aws sts get-caller-identity --query 'Account' --output text)
 echo "Region: $REGION"
 echo "Account: $ACCOUNT_ID"
 
-RANDOM_ID=$(openssl rand -hex 4)
+RANDOM_ID=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 8 | head -n 1)
 TRAIL_NAME="tutorial-trail-${RANDOM_ID}"
 BUCKET_NAME="cloudtrail-tut-${RANDOM_ID}-${ACCOUNT_ID}"
 
diff --git a/tuts/099-amazon-cloudwatch-logs-gs/REVISION-HISTORY.md b/tuts/099-amazon-cloudwatch-logs-gs/REVISION-HISTORY.md
@@ -0,0 +1,8 @@
+# Revision History: 099-amazon-cloudwatch-logs-gs
+
+## Shell (CLI script)
+
+### 2026-04-14 v1 published
+- Type: functional
+- Initial version
+
diff --git a/tuts/099-amazon-cloudwatch-logs-gs/amazon-cloudwatch-logs-gs.sh b/tuts/099-amazon-cloudwatch-logs-gs/amazon-cloudwatch-logs-gs.sh
@@ -14,7 +14,7 @@ fi
 export AWS_DEFAULT_REGION="$REGION"
 echo "Region: $REGION"
 
-RANDOM_ID=$(openssl rand -hex 4)
+RANDOM_ID=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 8 | head -n 1)
 LOG_GROUP="/tutorial/app-${RANDOM_ID}"
 STREAM_NAME="web-server"
 
diff --git a/tuts/106-aws-budgets-gs/README.md b/tuts/106-aws-budgets-gs/README.md
@@ -36,15 +36,3 @@ Free. The first two budgets per account have no charge. Additional budgets cost
 - [Creating a cost budget](https://docs.aws.amazon.com/cost-management/latest/userguide/budgets-create.html)
 - [Managing your costs with AWS Budgets](https://docs.aws.amazon.com/cost-management/latest/userguide/budgets-managing-costs.html)
 - [AWS Budgets CLI reference](https://docs.aws.amazon.com/cli/latest/reference/budgets/index.html)
-
----
-
-## Appendix: Generation details
-
-| Field | Value |
-|-------|-------|
-| Generation date | 2026-04-14 |
-| Source script | New, 76 lines |
-| Script test result | EXIT 0, 5s, 4 steps, no issues |
-| Issues encountered | None |
-| Iterations | v1 (direct to publish) |
diff --git a/tuts/106-aws-budgets-gs/REVISION-HISTORY.md b/tuts/106-aws-budgets-gs/REVISION-HISTORY.md
@@ -0,0 +1,8 @@
+# Revision History: 106-aws-budgets-gs
+
+## Shell (CLI script)
+
+### 2026-04-14 v1 published
+- Type: functional
+- Initial version
+
diff --git a/tuts/106-aws-budgets-gs/aws-budgets-gs.sh b/tuts/106-aws-budgets-gs/aws-budgets-gs.sh
@@ -16,7 +16,7 @@ ACCOUNT_ID=$(aws sts get-caller-identity --query 'Account' --output text)
 echo "Region: $REGION"
 echo "Account: $ACCOUNT_ID"
 
-RANDOM_ID=$(openssl rand -hex 4)
+RANDOM_ID=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 8 | head -n 1)
 BUDGET_NAME="tutorial-budget-${RANDOM_ID}"
 
 handle_error() { echo "ERROR on line $1"; trap - ERR; cleanup; exit 1; }
diff --git a/tuts/111-amazon-cloudwatch-gs/REVISION-HISTORY.md b/tuts/111-amazon-cloudwatch-gs/REVISION-HISTORY.md
@@ -0,0 +1,8 @@
+# Revision History: 111-amazon-cloudwatch-gs
+
+## Shell (CLI script)
+
+### 2026-04-14 v1 published
+- Type: functional
+- Initial version
+
diff --git a/tuts/111-amazon-cloudwatch-gs/amazon-cloudwatch-gs.sh b/tuts/111-amazon-cloudwatch-gs/amazon-cloudwatch-gs.sh
@@ -14,7 +14,7 @@ fi
 export AWS_DEFAULT_REGION="$REGION"
 echo "Region: $REGION"
 
-RANDOM_ID=$(openssl rand -hex 4)
+RANDOM_ID=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 8 | head -n 1)
 ALARM_NAME="tut-alarm-${RANDOM_ID}"
 DASHBOARD_NAME="tut-dashboard-${RANDOM_ID}"
 
diff --git a/tuts/113-aws-config-gs/REVISION-HISTORY.md b/tuts/113-aws-config-gs/REVISION-HISTORY.md
@@ -0,0 +1,8 @@
+# Revision History: 113-aws-config-gs
+
+## Shell (CLI script)
+
+### 2026-04-14 v1 published
+- Type: functional
+- Initial version
+
diff --git a/tuts/113-aws-config-gs/aws-config-gs.sh b/tuts/113-aws-config-gs/aws-config-gs.sh
@@ -14,7 +14,7 @@ fi
 export AWS_DEFAULT_REGION="$REGION"
 echo "Region: $REGION"
 
-RANDOM_ID=$(openssl rand -hex 4)
+RANDOM_ID=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 8 | head -n 1)
 RULE_NAME="tut-s3-encryption-${RANDOM_ID}"
 
 handle_error() { echo "ERROR on line $1"; trap - ERR; cleanup; exit 1; }
