Fix gitignore and push creds script

.gitignore

@@ -23,7 +23,6 @@ pnpm-debug.log*
 
 
 # other
-*.py
 cache
 dist_prebuild
 .sst

get_aws_creds.py

@@ -0,0 +1,95 @@
+""" Get dynamic AWS credentials """
+#!/usr/bin/python3
+#
+# For a given profile name, role ID, secret ID and role, set the two AWS
+# environment variables to the secret values.
+
+
+import sys
+import getopt
+import requests
+
+
+def vault_login(role_id, secret_id, aws_role):
+    """ Log into Vault to retrieve secret """
+    access_key = None
+    secret_key = None
+    security_token = None
+    # Since this code doesn't run on an EC2 instance, we use the AppRole
+    # authentication method.
+    data = {
+        "role_id": role_id,
+        "secret_id": secret_id
+    }
+    r = requests.post(
+        "https://login.linaro.org:8200/v1/auth/approle/login",
+        json=data,
+        timeout=30
+    )
+    # That gets us the vault token. Now get the credentials for the specified
+    # profile/account name.
+    header = {
+        "X-Vault-Token": r.json()["auth"]["client_token"]
+    }
+    r = requests.post(
+        f"https://login.linaro.org:8200/v1/aws/sts/{aws_role}",
+        headers=header,
+        timeout=30
+    )
+    if r.status_code == 200:
+        result = r.json()
+        access_key = result["data"]["access_key"]
+        secret_key = result["data"]["secret_key"]
+        security_token = result["data"]["security_token"]
+    # Now revoke the client token
+    requests.post(
+        "https://login.linaro.org:8200/v1/auth/token/revoke-self",
+        headers=header,
+        timeout=30)
+    return access_key, secret_key, security_token
+
+def main(argv):
+    """ Main! """
+    role_id = None
+    secret_id = None
+    aws_role = None
+    try:
+        opts, _ = getopt.getopt(argv, "i:s:r:")
+    except Exception:
+        print(
+            "get_aws_creds.py"
+            " -i <role ID>"
+            " -s <secret ID>"
+            " -r <AWS role>")
+        sys.exit(1)
+    for opt, arg in opts:
+        if opt == "-i":
+            role_id = arg
+        if opt == "-s":
+            secret_id = arg
+        if opt == "-r":
+            aws_role = arg
+    if (role_id is None or
+            secret_id is None or
+            aws_role is None):
+        print(
+            "get_aws_creds.py"
+            " -i <role ID>"
+            " -s <secret ID>"
+            " -r <AWS role>")
+        sys.exit(1)
+    access, secret, token = vault_login(
+        role_id,
+        secret_id,
+        aws_role
+    )
+    if access is None:
+        print("Failed to authenticate or invalid role specified.")
+        sys.exit(1)
+    print(f"export AWS_ACCESS_KEY_ID={access}")
+    print(f"export AWS_SECRET_ACCESS_KEY={secret}")
+    print(f"export AWS_SESSION_TOKEN={token}")
+
+
+if __name__ == "__main__":
+    main(sys.argv[1:])