Minor updates and cleanup

What
-----

- Minor cleanup to workshop instructions
- Update cleanup script so that it waits for stacks to delete before
  moving to the next one

workshop/content/buildpipe/done/_index.en.md

@@ -34,7 +34,19 @@ CodeBuild created the `sam-app-dev` stack during the `DeployTest` Pipeline step.
 CodeBuild created `sam-app-prod` during the `DeployProd` step.
 
 Look at the `Outputs` tab for each of these CloudFormation stacks to see the API endpoints. You can
-use `curl` or other methods to verify the functionality of your two new APIs.
+use `curl` or other methods to verify the functionality of your two new APIs. You can export the URL
+endpoints for both stages in a terminal.
+
+```bash
+export DEV_ENDPOINT=$(aws cloudformation describe-stacks --stack-name sam-app-dev | jq -r '.Stacks[].Outputs[].OutputValue | select(startswith("https://"))')
+export PROD_ENDPOINT=$(aws cloudformation describe-stacks --stack-name sam-app-prod | jq -r '.Stacks[].Outputs[].OutputValue | select(startswith("https://"))')
+
+echo "Dev endpoint: $DEV_ENDPOINT"
+echo "Prod endpoint: $PROD_ENDPOINT"
+
+curl -s $DEV_ENDPOINT
+curl -s $PROD_ENDPOINT
+```
 
 ![API endpoints](/images/chapter4-pipelines/sam-app-dev-cfn-outputs.png)
 

workshop/content/buildpipe/gitpush/_index.en.md

@@ -50,6 +50,10 @@ Branch 'main' set up to track remote branch 'main' from 'origin'.
 
 ### Verify in CodeCommit
 
-Navigate to the [AWS CodeCommit console](https://console.aws.amazon.com/codesuite/codecommit/home), find your _sam-app_ repository and click on it to view its contents. Make sure your code is there. You should see a screen like the following:
+Navigate to the [AWS CodeCommit console](https://console.aws.amazon.com/codesuite/codecommit/home),
+find your `sam-app` repository and click on it to view its contents. Make sure your code is there.
+You should see a screen like the following:
 
 ![VerifyCodeCommit](/images/screenshot-verify-codecommit.png)
+
+#### Now that you repo has your code let's start building a CI/CD pipeline!

workshop/content/buildpipe/howto/_index.en.md

@@ -6,7 +6,7 @@ weight = 20
 
 The best way to automate the creation of CI/CD pipelines is by provisioning them programmatically
 using Infrastructure as Code (IaC). This is useful in a microservices environment, where you may have
-a pipeline per microservice. In such environments there could be dozens, or even hundreds,
+a pipeline per service. In such environments there could be dozens, or even hundreds,
 of CI/CD pipelines. Having an automated way to create those CI/CD pipelines enables developers move quickly
 without the burden of building them manually. SAM Pipelines, which you'll be using, is a tool to
 ease that burden.
@@ -30,8 +30,6 @@ test our serverless application locally. AWS SAM is a toolset meant to increase
 developing serverless applications and provides capabilities such as `sam local` that are not
 present in other IaC tools.
 
-In this section you will be using another feature from SAM to create a CI/CD pipeline.
-
 ### Introducing AWS SAM Pipelines
 
 [**SAM Pipelines**](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-cli-command-reference-sam-pipeline-bootstrap.html)
@@ -49,14 +47,14 @@ As of this writing, SAM Pipelines can bootstrap CI/CD pipelines for the followin
 {{% notice note %}}
 SAM Pipelines is a feature which bootstraps CI/CD pipelines for the listed providers. This saves
 saves you the work of setting them up from scratch. However, you can use SAM as a deployment tool
-with _any_ CI/CD provider. You use the `sam build` and `sam deploy` commands to build and deploy SAM
+with _any_ CI/CD provider. You use various `sam` commands to build and deploy SAM
 applications regardless of your CI/CD toolset. Furthermore, the configurations SAM Pipelines creates
-are a convienence to get you started quickly. You are free to edit these CI/CD configuration
+are a convienence to get you started. You are free to edit these CI/CD configuration
 files after SAM creates them.
 {{% /notice %}}
 
 SAM Pipelines creates appropriate configuration files for your CI/CD provider of choice. For
-exampoe, when using
+example, when using
 GitHub Actions SAM will synthesize a `.github/workflows/pipeline.yaml` file. This file defines your CI/CD
 pipeline using GitHub Actions. In this workshop we will be using AWS CodePipeline. As you will soon
 see, SAM creates multiple files, one of which is a CloudFormation template named
@@ -68,11 +66,11 @@ serverless application automatically.
 At the end of this section we will have a self-updating CI/CD pipeline using CodePipeline that will
 perform the following steps.
 
-1. Trigger after a commit to the `main` branch
-1. Look for changes to the pipeline itself, and self-update using CloudFormation
-1. Run unit tests via CodeBuild
-1. Build and package the application code via CodeBuild
-1. Deploy to a dev/test environment
-1. Deploy to a production environment
+1. Trigger after a commit to the `main` branch (`Source` in the screenshot below)
+1. Look for changes to the pipeline itself, and self-update using CloudFormation (`UpdtatePipeline`)
+1. Run unit tests via CodeBuild (`UnitTest`)
+1. Build and package the application code via CodeBuild (`BuildAndPackage`)
+1. Deploy to a dev/test environment (`DeployTest`)
+1. Deploy to a production environment (`DeployProd`)
 
 ![](/images/sam-pipeline-architecture.png)

workshop/content/buildpipe/sampipeinit/_index.en.md

@@ -29,8 +29,8 @@ cd ~/environment/sam-app
 sam pipeline init --bootstrap
 ```
 
-A list of the questions and required anwers for this workshop is enumerated below. Note that numbers
-may be different when choosing from an enumerated list. The full output and answers are provided
+A list of the questions and required anwers for this workshop is enumerated below. **Note that numbers
+may be different when choosing from an enumerated list.** The full output and answers are provided
 below as an additional reference.
 
 1. Select a pipeline template to get started: `AWS Quick Start Pipeline Templates` (1)

workshop/content/canaries/add-error/_index.en.md

@@ -71,7 +71,7 @@ exports.lambdaHandler = async (event, context) => {
 
 `~/environment/sam-app/hello_world/app.py`
 
-```python
+```python {hl_lines=["3-4"]}
 def lambda_handler(event, context):
 
     if True:
@@ -100,6 +100,7 @@ def test_lambda_handler(apigw_event, mocker):
 In the terminal, run the following commands from the root directory of your `sam-app` project.
 
 ```
+cd ~/environment/sam-app
 git add .
 git commit -m "Breaking the lambda function on purpose"
 git push
@@ -111,14 +112,15 @@ Once you've pushed the code you will need to generate traffic on your production
 endpoint. **If you don't generate traffic for your Lambda function the CloudWatch alarm will not be
 triggered!**
 
-Fetch the API Gateway endpoint for your production deployment. This command will export the
-production URL to the environment variable `PROD_ENDPOINT`.
+{{%expand "If you haven't exported the PROD_ENDPOINT, run the following command." %}}
 
 ```bash
 export PROD_ENDPOINT=$(aws cloudformation describe-stacks --stack-name sam-app-prod | jq -r '.Stacks[].Outputs[].OutputValue | select(startswith("https://"))')
 echo "$PROD_ENDPOINT"
 ```
 
+{{% /expand%}}
+
 Start a `watch` command which will hit this endpoint twice per second.
 
 ```bash

workshop/content/canaries/codedeploy/_index.en.md

@@ -20,7 +20,7 @@ Remember to update the unit tests!
 
 `~/environment/sam-app/hello-world/app.js`
 
-```javascript
+```javascript {hl_lines=["4"]}
 response = {
   statusCode: 200,
   body: JSON.stringify({
@@ -31,7 +31,7 @@ response = {
 
 `~/environment/node-sam-app/hello-world/tests/unit/test-handler.js `
 
-```javascript
+```javascript {hl_lines=["12"]}
 describe("Tests index", function () {
   it("verifies successful response", async () => {
     const result = await app.lambdaHandler(event, context)
@@ -54,7 +54,7 @@ describe("Tests index", function () {
 
 `~/environment/sam-app/hello_world/app.py `
 
-```python
+```python {hl_lines=["4"]}
 return {
     "statusCode": 200,
     "body": json.dumps({
@@ -65,7 +65,7 @@ return {
 
 `~/environment/sam-app/tests/unit/test_handler.py`
 
-```python
+```python {hl_lines=["7"]}
 def test_lambda_handler(apigw_event, mocker):
     ret = app.lambda_handler(apigw_event, "")
     data = json.loads(ret["body"])
@@ -96,16 +96,21 @@ completes.
 First, get the `https` endpoint of your dev stage. In a terminal on your Cloud9 enviroment run the
 following command.
 
+{{%expand "Export the HTTP endpoints if you haven't already" %}}
+
 ```bash
-aws cloudformation describe-stacks --stack-name sam-app-dev  | jq -r '.Stacks[].Outputs[].OutputValue | select(startswith("https://"))'
+export DEV_ENDPOINT=$(aws cloudformation describe-stacks --stack-name sam-app-dev | jq -r '.Stacks[].Outputs[].OutputValue | select(startswith("https://"))')
+export PROD_ENDPOINT=$(aws cloudformation describe-stacks --stack-name sam-app-prod | jq -r '.Stacks[].Outputs[].OutputValue | select(startswith("https://"))')
 ```
 
-Copy the url returned by the previous command run the following `watch` command. This will hit your
-API endpoint every second and print the return value to the screen. This command will also append
-the output to the `outputs.txt` file. You can run this command from any directory.
+{{% /expand%}}
+
+Hit your `dev` API endpoint every second and print the return value to the screen. This command will
+also append the output to the `outputs.txt` file that you can inspect later. You can run this
+command from any directory.
 
 ```bash
-watch -n 1 "curl -s https://123123123.execute-api.us-east-2.amazonaws.com/Prod/hello/ | jq '.message' 2>&1 | tee -a outputs.txt"
+watch -n 1 "curl -s $DEV_ENDPOINT | jq '.message' 2>&1 | tee -a outputs.txt"
 ```
 
 You should see `Hello my friend` in the terminal. Now that your script is logging the API output turn
@@ -117,7 +122,8 @@ the `In Progress` status navigate to the CodeDeploy console.
 ![CanaryCodeDeploy](/images/screenshot-canary-codedeploy-00.png)
 
 In the CodeDeploy console click on `Deployments`. You should see your deployment `In progress`. If
-you do not see a deployment, click the refresh icon. Click on the Deployment Id to see the details.
+you do not see a deployment, click the refresh icon. **This may take a few minutes to show up!**
+Click on the Deployment Id to see the details.
 
 ![CanaryCodeDeploy](/images/screenshot-canary-codedeploy-0.png)
 
@@ -130,6 +136,8 @@ ellapsed. In this case we specified the interval to be 5 minutes.
 When you are in this stage, take a look at your terminal where you started the `watch` command. You
 will see the message occasionally flash to `I'm using canary deployments`.
 
+![CanaryDeploymentMessages](/images/code-pipeline-canary.gif)
+
 After five minutes CodeDeploy will shift the remaining traffic to the new version and the deployment
 will be done:
 

workshop/content/canaries/sam/_index.en.md

@@ -12,6 +12,8 @@ with your `template.yaml` file.
 {{< tabs >}}
 {{% tab name="Node" %}}
 
+`~environment/sam-app/template.yaml`
+
 ```yaml {linenos=true,hl_lines=["2-4"],linenostart=20}
 Runtime: nodejs14.x
 AutoPublishAlias: live
@@ -24,6 +26,8 @@ Architectures:
 {{% /tab %}}
 {{% tab name="python" %}}
 
+`~environment/sam-app/template.yaml`
+
 ```yaml {linenos=true,hl_lines=["2-4"],linenostart=20}
 Runtime: python3.7
 AutoPublishAlias: live

workshop/content/cleanup/delete-cf-stacks.en.md

@@ -19,7 +19,17 @@ need to make adjustments. The cleanup script in its entirety is shown below.
 ```bash
 #!/bin/bash
 
-ROLE_NAME=Cloud9-MyAwesomeAdmin
+ROLE_NAME=Cloud9-AwesomeAdmin
+
+# Function to get the status of a CFN template
+get_stack_status () {
+    status=$(aws cloudformation describe-stacks --stack-name $1)
+    if [ $? -eq 0 ]; then
+        echo "$status" | jq -r ".Stacks[].StackStatus"
+    else
+        echo "DELETE_COMPLETE"
+    fi
+}
 
 cat > cfn-policy.json<< EOF
 {
@@ -42,18 +52,32 @@ ACCOUNT_ID=$(aws sts get-caller-identity --query "Account" --output text)
 ## Create a temporary Admin role
 aws iam create-role --role-name "$ROLE_NAME" --assume-role-policy-document file://cfn-policy.json
 aws iam attach-role-policy --role-name "$ROLE_NAME" --policy-arn "arn:aws:iam::aws:policy/AdministratorAccess"
+rm cfn-policy.json
 
 ## Wait a bit for this role to stick. It cannot be used immediately after creation.
-sleep 15
+sleep 10
 
 ## Delete stacks
 stacks=(sam-app-prod sam-app-dev sam-app-pipeline aws-sam-cli-managed-prod-pipeline-resources aws-sam-cli-managed-dev-pipeline-resources)
 
-for name in "${stacks[@]}"
+for stack_name in "${stacks[@]}"
 do
-  echo "Deleting stack: $name..."
-  aws cloudformation delete-stack --role-arn "arn:aws:iam::$ACCOUNT_ID:role/$ROLE_NAME" --stack-name "$name"
-  sleep 10
+    echo "Deleting stack: $stack_name..."
+
+    aws cloudformation delete-stack \
+        --role-arn "arn:aws:iam::$ACCOUNT_ID:role/$ROLE_NAME" \
+        --stack-name "$stack_name"
+
+    status="$(get_stack_status $stack_name)"
+
+    # Wait until the stack is actually deleted
+    while [ "$status" != "DELETE_COMPLETE" ]
+    do
+        sleep 5
+        status="$(get_stack_status $stack_name)"
+        echo "$stack_name: $status"
+    done
+
 done
 
 ## Delete the temporary Admin role

workshop/content/local/change/_index.en.md

@@ -13,7 +13,7 @@ simple change. Change the response message to return `hello my friend` instead o
 
 `~environment/sam-app/hello-world/app.js`
 
-```js
+```js {hl_lines=["8"]}
 let response
 
 exports.lambdaHandler = async (event, context) => {
@@ -37,7 +37,7 @@ exports.lambdaHandler = async (event, context) => {
 {{% tab name="python" %}}
 `~environment/sam-app/hello_world/app.py`
 
-```python
+```python {hl_lines=["7"]}
 import json
 
 def lambda_handler(event, context):

workshop/content/sam/code/_index.en.md

@@ -4,14 +4,12 @@ date = 2019-10-02T15:21:26-07:00
 weight = 15
 +++
 
-{{% notice note %}}
-If you consider yourself an expert using Lambda functions, you can probably skip this page.
-{{% /notice%}}
-
 Let's take a look at the code of the Hello World Lambda function.
 
-**Note** that your function may have additional commented out code, those lines have been removed
-from the following example for clarity.
+{{% notice note %}}
+Your function may have additional comments. Those lines have been removed from the following example
+for clarity.
+{{% /notice%}}
 
 {{< tabs >}}
 {{% tab name="Node" %}}

workshop/content/sam/init/_index.en.md

@@ -59,10 +59,14 @@ Which runtime would you like to use?
         14 - ruby2.7
 ```
 
-- Node: `nodejs14.x`
-- Python: `python3.7`
-- Java: `python3.7`
-- C#: `dotnet6`
+{{< tabs >}}
+{{% tab name="Node" %}}
+`nodejs14.x`
+{{% /tab %}}
+{{% tab name="python" %}}
+`python3.7`
+{{% /tab %}}
+{{% /tabs %}}
 
 Select `Zip` as the package type and leave `sam-app` as the `Project name`.