update CI helper

scripts/ci_helper.py

@@ -71,18 +71,15 @@ def code():
 
 @web.command("has-changed")
 def changed_web():
-    helper = CIHelper()
-    click.echo(helper.dir_changed("web/"))
+    click.echo(CIHelper().dir_changed("web/"))
 
 @code.command("has-changed")
 def changed_code():
-    helper = CIHelper()
-    click.echo(helper.dir_changed("code/"))
+    click.echo(CIHelper().dir_changed("code/"))
 
 @code.command("ls")
 def list_pulumi():
-    helper = CIHelper()
-    click.echo(helper.get_pulumi_projects())
+    click.echo(CIHelper().get_pulumi_projects())
 
 if __name__ == "__main__":
     helper()

web/content/cloud_computing/aws/canonical_requests/signing.md

@@ -17,35 +17,41 @@ The version 4 signing process consists of the following steps and components[^2]
 1. Creating the _credential scope_: This value restricts the request to the target service and region and is of the following format: `TIMESTAMP/REGION/SERVICE/SIGNING_VERSION` where the timestamp value is of form _YYYYMMDD_.
 
 2. Generate the target string to sign: This consists of the signing algorithm used to produce the signature (AWS4-HMAC-SHA256), the Amzaon-formatted request timestamp (i.e. _YYYYMMDDHHMMSSZ_), the previously produced credential scope, and a hash of the canonical requests string, all separated by newline characters:
-{{< tabs groupId="pseudo" >}}
-{{% tab name="Pseudocode" %}}
+   {{< tabs groupId="pseudo" >}}
+   {{% tab name="Pseudocode" %}}
+
 ```
 signatureString = SIGNING_ALGORITHM + "\n" +
-AMAZON_DATE_TIMESTAMP + "\n" + 
-CREDENTIAL_SCOPE + "\n" + 
+AMAZON_DATE_TIMESTAMP + "\n" +
+CREDENTIAL_SCOPE + "\n" +
 SHA256(CANONICAL_REQUEST_STRING)
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 
 3. Create the signature key: The _signature key_, used to sign the request string, is derived from the AWS secret key, Amazon-formatted request timestamp, region, and service. The following Pseudocode illustrates this process:
-{{< tabs groupId="pseudo" >}}
-{{% tab name="Pseudocode" %}}
+   {{< tabs groupId="pseudo" >}}
+   {{% tab name="Pseudocode" %}}
+
 ```
 kDate = hash("AWS4" + Key, Date)
 kRegion = hash(kDate, Region)
 kService = hash(kRegion, Service)
 signatureKey = hash(kService, "aws4_request")
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 
 4. Sign the previously generated signature string with the signature key and encode the hexadecimal representation.
-{{< tabs groupId="pseudo" >}}
-{{% tab name="Pseudocode" %}}
+   {{< tabs groupId="pseudo" >}}
+   {{% tab name="Pseudocode" %}}
+
 ```
 signature = hexEncode(hash(signatureKey, signatureString))
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 
@@ -57,13 +63,16 @@ Below provides a concrete example for generating a version 4 signature from an a
 {{< tab name="Typescript" >}}
 {{< tabs >}}
 {{% tab name="Execution" %}}
+
 ```
 ts-node signing.ts $AWS_SECRET_KEY us-west-1 ssm "Hello World!"
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{< tabs >}}
 {{% tab name="signing.ts" %}}
+
 ```ts
 // can_req/ts/signing.ts
 
@@ -159,8 +168,8 @@ if (require.main === module) {
   const signature = signHex(key, Buffer.from(stringToSign));
   console.log("Signed String: " + signature);
 }
-
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{% button href="https://github.com/MichaelStott/tech-squawks/tree/main/code/can_req/ts" icon="code" %}}Repository{{% /button %}}
@@ -169,13 +178,16 @@ if (require.main === module) {
 {{< tab name="Javascript" >}}
 {{< tabs >}}
 {{% tab name="Execution" %}}
+
 ```
 node signing.js $AWS_SECRET_KEY us-west-1 ssm "Hello World!"
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{< tabs >}}
 {{% tab name="signing.js" %}}
+
 ```js
 // can_req/js/signing.js
 
@@ -273,8 +285,8 @@ module.exports = {
   getStringToSign,
   signHex,
 };
-
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{% button href="https://github.com/MichaelStott/tech-squawks/tree/main/code/can_req/js" icon="code" %}}Repository{{% /button %}}
@@ -283,13 +295,16 @@ module.exports = {
 {{< tab name="Python" >}}
 {{< tabs >}}
 {{% tab name="Execution" %}}
+
 ```
 python3 signing.py $AWS_SECRET_KEY us-west-1 ssm "Hello World!"
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{< tabs >}}
 {{% tab name="signing.py" %}}
+
 ```py
 # can_req/py/signing.py
 
@@ -371,6 +386,7 @@ if __name__ == "__main__":
     print("Signed String: " + signature)
 
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{% button href="https://github.com/MichaelStott/tech-squawks/tree/main/code/can_req/py" icon="code" %}}Repository{{% /button %}}
@@ -379,13 +395,16 @@ if __name__ == "__main__":
 {{< tab name="Go" >}}
 {{< tabs >}}
 {{% tab name="Execution" %}}
+
 ```
 go run signing_driver.go signing.go $AWS_SECRET_KEY us-west-1 ssm "Hello World!"
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{< tabs >}}
 {{% tab name="signing.go" %}}
+
 ```go
 // can_req/go/signing.go
 
@@ -470,8 +489,10 @@ func runDemo() {
 }
 
 ```
+
 {{% /tab %}}
 {{% tab name="signing_driver.go" %}}
+
 ```go
 // can_req/go/signing_driver.go
 
@@ -482,6 +503,7 @@ func main() {
 }
 
 ```
+
 {{% /tab %}}
 {{< /tabs >}}
 {{% button href="https://github.com/MichaelStott/tech-squawks/tree/main/code/can_req/go" icon="code" %}}Repository{{% /button %}}
@@ -490,6 +512,7 @@ func main() {
 {{< /tabs >}}
 
 **Output**
+
 ```
 Amazon Timestamp: 20230625T174754Z
 Requset Timestamp: 20230625
@@ -498,7 +521,6 @@ Signing Key: 843b458b4664ec9c54e42274a490b2c7cb2802cc104dcba2ad2df8fe71c008ff
 String to sign: "AWS4-HMAC-SHA256\n20230625T174754Z\n20230625/us-west-1/ssm/aws4_request\n7f83b1657ff1fc53b92dc18148a1d65dfc2d4b1fa3d677284addd200126d9069"
 Signed String: cc1a8368f317707c89b33e8f627f722819ed4d28341fef7b56720103b5d3fe79
 ```
-[^1]: https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html
 
+[^1]: https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html
 [^2]: https://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html
-