feat(sdk): port cli code from v1 to v2 (#7547)

* port cli

* fix docker mock

sdk/python/kfp/cli/__init__.py

@@ -0,0 +1,13 @@
+# Copyright 2018 The Kubeflow Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.

sdk/python/kfp/cli/cli.py

@@ -0,0 +1,82 @@
+# Copyright 2018 The Kubeflow Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+import sys
+
+import click
+import typer
+from kfp.cli import components
+from kfp.cli.diagnose_me_cli import diagnose_me
+from kfp.cli.experiment import experiment
+from kfp.cli.output import OutputFormat
+from kfp.cli.pipeline import pipeline
+from kfp.cli.recurring_run import recurring_run
+from kfp.cli.run import run
+from kfp.client import Client
+
+_NO_CLIENT_COMMANDS = ['diagnose_me', 'components']
+
+
+@click.group()
+@click.option('--endpoint', help='Endpoint of the KFP API service to connect.')
+@click.option('--iap-client-id', help='Client ID for IAP protected endpoint.')
+@click.option(
+    '-n',
+    '--namespace',
+    default='kubeflow',
+    show_default=True,
+    help='Kubernetes namespace to connect to the KFP API.')
+@click.option(
+    '--other-client-id',
+    help='Client ID for IAP protected endpoint to obtain the refresh token.')
+@click.option(
+    '--other-client-secret',
+    help='Client ID for IAP protected endpoint to obtain the refresh token.')
+@click.option(
+    '--output',
+    type=click.Choice(list(map(lambda x: x.name, OutputFormat))),
+    default=OutputFormat.table.name,
+    show_default=True,
+    help='The formatting style for command output.')
+@click.pass_context
+def cli(ctx: click.Context, endpoint: str, iap_client_id: str, namespace: str,
+        other_client_id: str, other_client_secret: str, output: OutputFormat):
+    """kfp is the command line interface to KFP service.
+
+    Feature stage:
+    [Alpha](https://github.com/kubeflow/pipelines/blob/07328e5094ac2981d3059314cc848fbb71437a76/docs/release/feature-stages.md#alpha)
+    """
+    if ctx.invoked_subcommand in _NO_CLIENT_COMMANDS:
+        # Do not create a client for these subcommands
+        return
+    ctx.obj['client'] = Client(endpoint, iap_client_id, namespace,
+                               other_client_id, other_client_secret)
+    ctx.obj['namespace'] = namespace
+    ctx.obj['output'] = output
+
+
+def main():
+    logging.basicConfig(format='%(message)s', level=logging.INFO)
+    cli.add_command(run)
+    cli.add_command(recurring_run)
+    cli.add_command(pipeline)
+    cli.add_command(diagnose_me, 'diagnose_me')
+    cli.add_command(experiment)
+    cli.add_command(typer.main.get_command(components.app))
+    try:
+        cli(obj={}, auto_envvar_prefix='KFP')
+    except Exception as e:
+        click.echo(str(e), err=True)
+        sys.exit(1)