Add helpers folder (#437)

* Return removed staging CA for letsenrypt

* Fix missing $

* Remove PAYMENTS_AUTORECHARGE_DEFAULT_MIN_BALANCE

* Add helpers scripts

scripts/helpers/gen_pwd.py

@@ -0,0 +1,19 @@
+import secrets
+import string
+import sys
+
+
+def generate_password(length=12):
+    # https://stackoverflow.com/a/39596292
+    alphabet = string.ascii_letters + string.digits
+    password = "".join(secrets.choice(alphabet) for i in range(length))
+    return password
+
+
+if len(sys.argv) < 2:
+    pwd_len = 30
+else:
+    pwd_len = int(sys.argv[1])
+
+new_password = generate_password(pwd_len)
+print(new_password)

scripts/helpers/get_unused_aws_key_pairs.py

@@ -0,0 +1,41 @@
+import sys
+from pprint import pprint
+
+import boto3
+
+# Create a session with the specified profile or use the default profile
+profile_name = sys.argv[1] if len(sys.argv) > 1 else None
+session = boto3.Session(profile_name=profile_name)
+
+# Use the session to create an EC2 client to get the default region
+ec2_client = session.client("ec2")
+default_region = ec2_client.meta.region_name
+
+# Use the session to create an EC2 resource with the default region
+ec2 = session.resource("ec2", region_name=default_region)
+
+unused_keys = {}
+
+# Iterate over all regions
+for region in ec2.meta.client.describe_regions()["Regions"]:
+    region_name = region["RegionName"]
+    try:
+        # Use the session to create an EC2 resource for the specific region
+        ec2conn = session.resource("ec2", region_name=region_name)
+
+        # Get all key pairs in the region
+        key_pairs = ec2conn.key_pairs.all()
+
+        # Get the names of key pairs used by instances in the region
+        used_keys = {instance.key_name for instance in ec2conn.instances.all()}
+
+        # Iterate over key pairs and delete unused ones
+        for key_pair in key_pairs:
+            if key_pair.name not in used_keys:
+                unused_keys[key_pair.name] = region_name
+    except Exception as e:
+        print(f"No access to region {region_name}: {e}")
+
+# Print the results
+print(f"Found {len(unused_keys)} unused key pairs across all regions:")
+pprint(unused_keys)