Move common code to utils. Add option to run cmd over ssh

src/tripleo_aio_helpers/os_migrate_setup.py

@@ -4,23 +4,7 @@ Quick and dirty script to help setup project, flavors, networks, images
 import argparse
 import json
 
-import os
+from .utils import get_from_env,openstack_cmd
-import subprocess
-import sys
-
-
-def openstack_cmd(cmd, args):
-    """Utility function to run an openstack command agains the standalone cloud"""
-    cmd = "OS_CLOUD=standalone openstack " + cmd
-
-    if args.dry_run:
-        print("dry-run specified. Not executing cmd. cmd was:")
-        print(cmd)
-        return
-    
-    result = subprocess.check_output(cmd, shell=True, universal_newlines=True)
-    return result
-
 
 def parse_args():
     """Parse the command line arguments"""
@@ -41,6 +25,7 @@ def parse_args():
     parser.add_argument("--public-net-end")
     parser.add_argument("--dns-server")
     parser.add_argument("--dry-run", action="store_true")
+    parser.add_argument("--ssh", help="Connection string to run commands on a remote host.")
 
     # export OS_CLOUD=standalone
     # export STANDALONE_HOST=10.76.23.39
@@ -62,26 +47,14 @@ def parse_args():
     if not args.dns_server:
         args.dns_server = get_from_env("--dns-server", "AIO_DNS_SERVER")
 
+    if not args.ssh:
+        args.ssh = get_from_env("--ssh", "AIO_SSH", required=False)
+
     return args
 
-def get_from_env(name, envvar):
-    value = os.environ.get(envvar)
-
-    if value is None:
-        print(
-            f"You must specify {name}, either on the commandline or using "
-            f"the {envvar} environment varauble."
-            )
-        sys.exit(1)
-    
-    return value
-
 def create_project(args):
     """Create the project if it doesn't already exist"""
 
-    if args.dry_run:
-        print("Dry run specified. Not creating project")
-        return
     
     cmd = "project list -f json"
     project_exists = [

src/tripleo_aio_helpers/utils.py

@@ -0,0 +1,31 @@
+import os
+import subprocess
+import sys
+
+def get_from_env(name, envvar, required=True):
+    value = os.environ.get(envvar)
+
+    if value is None and required:
+        print(
+            f"You must specify {name}, either on the commandline or using "
+            f"the {envvar} environment varauble."
+            )
+        sys.exit(1)
+    
+    return value
+
+def openstack_cmd(cmd, args):
+    """Utility function to run an openstack command agains the standalone cloud"""
+    cmd = "OS_CLOUD=standalone openstack " + cmd
+
+    if args.ssh:
+        cmd = f"ssh {args.ssh} \"{cmd}\""
+
+    if args.dry_run:
+        print("dry-run specified. Not executing cmd. cmd was:")
+        print(cmd)
+        return
+    
+    result = subprocess.check_output(cmd, shell=True, universal_newlines=True)
+    return result
+