[experiments] Add start/cancel/reset commands

As their name suggests, these commands will allow
to interact with the platform regarding the
execution of experiments.

beat/cmdline/experiments.py

@@ -39,6 +39,7 @@ import logging
 import glob
 import click
 import simplejson
+import six
 
 from beat.core.experiment import Experiment
 from beat.core.execution import DockerExecutor
@@ -835,3 +836,56 @@ def plot(ctx, names, force, remote, show, output_folder):
             {},
             output_folder,
         )
+
+
+@experiments.command()
+@click.argument("name", nargs=1)
+@click.pass_context
+def start(ctx, name):
+    """Start an experiment on the platform"""
+
+    config = ctx.meta.get("config")
+    with common.make_webapi(config) as webapi:
+        status, _ = webapi.post("/api/v1/experiments/{}/start/".format(name))
+
+    if status != six.moves.http_client.OK:
+        logger.error(
+            "failed to start {} on `{}', reason: {}".format(
+                name, webapi.platform, six.moves.http_client.responses[status]
+            )
+        )
+
+
+@experiments.command()
+@click.argument("name", nargs=1)
+@click.pass_context
+def cancel(ctx, name):
+    """Cancel an experiment on the platform"""
+
+    config = ctx.meta.get("config")
+    with common.make_webapi(config) as webapi:
+        status, _ = webapi.post("/api/v1/experiments/{}/cancel/".format(name))
+
+    if status != six.moves.http_client.OK:
+        logger.error(
+            "failed to cancel {} on `{}', reason: {}".format(
+                name, webapi.platform, six.moves.http_client.responses[status]
+            )
+        )
+
+
+@experiments.command()
+@click.argument("name", nargs=1)
+@click.pass_context
+def reset(ctx, name):
+    """Cancel an experiment on the platform"""
+
+    config = ctx.meta.get("config")
+    with common.make_webapi(config) as webapi:
+        status, _ = webapi.post("/api/v1/experiments/{}/reset/".format(name))
+        if status != six.moves.http_client.OK:
+            logger.error(
+                "failed to reset {} on `{}', reason: {}".format(
+                    name, webapi.platform, six.moves.http_client.responses[status]
+                )
+            )