lcitool container: Add "run" subcommand

This adds the "run" subcommand to lcitool
which is used to run workload in a container
It is run with:
    lcitool container run --help

Validate the command line arguments for "run"
to ensure that --script is required, and it
works with and without --workload-dir argument

It also stops running if image doesn't exist locally.

Signed-off-by: Abdulwasiu Apalowo <abdulwasiuapalowo@gmail.com>

2 files changed, 55 insertions, 0 deletions

diff --git a/lcitool/application.py b/lcitool/application.py
index c5bbbab..a435a59 100644
--- a/lcitool/application.py
+++ b/lcitool/application.py
@@ -370,6 +370,46 @@ class Application:
         log.debug(f"Generated image tag --> {tag}")
         print(f"Image '{tag}' successfully built.")
 
+    def _action_container_run(self, args):
+        self._entrypoint_debug(args)
+
+        params = {}
+        client = self._get_client(args.engine)
+
+        container_tempdir = TemporaryDirectory(prefix="container",
+                                               dir=util.get_temp_dir())
+        params["tempdir"] = container_tempdir.name
+
+        if not client.image_exists(args.image):
+            print(f"Image '{args.image}' not found in local cache. Build it or pull from registry first.")
+            return
+
+        params["image"] = args.image
+        params["user"] = args.user
+        if args.user.isdecimal():
+            params["user"] = int(args.user)
+
+        if args.env:
+            params["env"] = args.env
+
+        if args.workload_dir:
+            workload_dir = Path(args.workload_dir)
+            if not workload_dir.is_dir():
+                raise ApplicationError(f"'{workload_dir}' is not a directory")
+            params["datadir"] = workload_dir.resolve()
+
+        script = Path(args.script)
+        if not script.is_file():
+            raise ApplicationError(f"'{script}' is not a file")
+        params["script"] = script.resolve()
+
+        params["container_cmd"] = "./script"
+
+        try:
+            client.run(**params)
+        except ContainerError as ex:
+            raise ApplicationError(ex.message)
+
     def run(self, args):
         try:
             util.set_extra_data_dir(args.data_dir)
diff --git a/lcitool/commandline.py b/lcitool/commandline.py
index 9e69c49..8835b4c 100644
--- a/lcitool/commandline.py
+++ b/lcitool/commandline.py
@@ -306,6 +306,13 @@ class CommandLine:
         )
         build_containerparser.set_defaults(func=Application._action_container_build)
 
+        run_containerparser = containersubparser.add_parser(
+            "run",
+            help="run container action",
+            parents=[imageopt, containeropt, engineopt, workload_diropt, scriptopt]
+        )
+        run_containerparser.set_defaults(func=Application._action_container_run)
+
     # Validate "container" args
     def _validate(self, args):
         """
@@ -327,6 +334,14 @@ class CommandLine:
                 else:
                     log.error("--target and --projects are required")
                     sys.exit(1)
+
+            if args.container == "run":
+                # "run" subcommand only requires "--script" argument;
+                # it works with or without "--workload-dir" argument
+                if not args.script:
+                    log.error("--script is required")
+                    sys.exit(1)
+
         return args
 
     def parse(self):