Cloudify support for OOM

Issue-ID: OOM-106
Change-Id: Ie0a37ef378fd1907825da181c81502c6fbe9134c
Signed-off-by: Marek Wolczanski <marek.wolczanski@cloudify.co>

10 files changed, 0 insertions, 779 deletions

diff --git a/cloudify/scripts/configure_node.py b/cloudify/scripts/configure_node.py
deleted file mode 100644
index 9cfa206b54..0000000000
--- a/cloudify/scripts/configure_node.py
+++ /dev/null
@@ -1,49 +0,0 @@
-#!/usr/bin/env python
-
-import subprocess
-from cloudify import ctx
-from cloudify.state import ctx_parameters as inputs
-
-
-def execute_command(_command):
-
-    ctx.logger.debug('_command {0}.'.format(_command))
-
-    subprocess_args = {
-        'args': _command.split(),
-        'stdout': subprocess.PIPE,
-        'stderr': subprocess.PIPE
-    }
-
-    ctx.logger.debug('subprocess_args {0}.'.format(subprocess_args))
-
-    process = subprocess.Popen(**subprocess_args)
-    output, error = process.communicate()
-
-    ctx.logger.debug('command: {0} '.format(_command))
-    ctx.logger.debug('output: {0} '.format(output))
-    ctx.logger.debug('error: {0} '.format(error))
-    ctx.logger.debug('process.returncode: {0} '.format(process.returncode))
-
-    if process.returncode:
-        ctx.logger.error('Running `{0}` returns error.'.format(_command))
-        return False
-
-    return output
-
-
-if __name__ == '__main__':
-
-    join_command = inputs['join_command']
-    join_command = 'sudo {0} --skip-preflight-checks'.format(join_command)
-    execute_command(join_command)
-
-    # Install weave-related utils
-    execute_command('sudo curl -L git.io/weave -o /usr/local/bin/weave')
-    execute_command('sudo chmod a+x /usr/local/bin/weave')
-    execute_command('sudo curl -L git.io/scope -o /usr/local/bin/scope')
-    execute_command('sudo chmod a+x /usr/local/bin/scope')
-    execute_command('/usr/local/bin/scope launch')
-
-    hostname = execute_command('hostname')
-    ctx.instance.runtime_properties['hostname'] = hostname.rstrip('\n')
diff --git a/cloudify/scripts/create.py b/cloudify/scripts/create.py
deleted file mode 100644
index eb362a4558..0000000000
--- a/cloudify/scripts/create.py
+++ /dev/null
@@ -1,72 +0,0 @@
-#!/usr/bin/env python
-
-import subprocess
-from cloudify import ctx
-from cloudify.exceptions import OperationRetry
-
-
-def check_command(command):
-
-    try:
-        process = subprocess.Popen(
-            command.split()
-        )
-    except OSError:
-        return False
-
-    output, error = process.communicate()
-
-    ctx.logger.debug('command: {0} '.format(command))
-    ctx.logger.debug('output: {0} '.format(output))
-    ctx.logger.debug('error: {0} '.format(error))
-    ctx.logger.debug('process.returncode: {0} '.format(process.returncode))
-
-    if process.returncode:
-        ctx.logger.error('Running `{0}` returns error.'.format(command))
-        return False
-
-    return True
-
-
-def execute_command(_command):
-
-    ctx.logger.debug('_command {0}.'.format(_command))
-
-    subprocess_args = {
-        'args': _command.split(),
-        'stdout': subprocess.PIPE,
-        'stderr': subprocess.PIPE
-    }
-
-    ctx.logger.debug('subprocess_args {0}.'.format(subprocess_args))
-
-    process = subprocess.Popen(**subprocess_args)
-    output, error = process.communicate()
-
-    ctx.logger.debug('command: {0} '.format(_command))
-    ctx.logger.debug('output: {0} '.format(output))
-    ctx.logger.debug('error: {0} '.format(error))
-    ctx.logger.debug('process.returncode: {0} '.format(process.returncode))
-
-    if process.returncode:
-        ctx.logger.error('Running `{0}` returns error.'.format(_command))
-        return False
-
-    return output
-
-
-if __name__ == '__main__':
-
-    docker_command = 'docker ps'
-
-    if not check_command(docker_command):
-        raise OperationRetry('Waiting for docker to be installed.')
-
-    finished = False
-    ps = execute_command('ps -ef')
-    for line in ps.split('\n'):
-        if '/usr/bin/python /usr/bin/cloud-init modules' in line:
-            ctx.logger.error('in line')
-            raise OperationRetry('Waiting for Cloud Init to finish.')
-
-    ctx.logger.info('Docker is ready and Cloud Init finished.')
diff --git a/cloudify/scripts/onap/configure_docker_secret_workaround.py b/cloudify/scripts/onap/configure_docker_secret_workaround.py
deleted file mode 100644
index 6e9deff059..0000000000
--- a/cloudify/scripts/onap/configure_docker_secret_workaround.py
+++ /dev/null
@@ -1,40 +0,0 @@
-from fabric.api import run
-
-from cloudify import ctx
-from cloudify.exceptions import NonRecoverableError
-
-
-def _retrieve_namespace():
-    namespace = ctx.node.properties.get(
-        'namespace',
-        ctx.node.properties
-            .get('options', {})
-            .get('namespace', None)
-    )
-
-    if not namespace:
-        raise NonRecoverableError(
-            'Namespace is not defined (node={})'.format(ctx.node.name)
-        )
-
-    return namespace
-
-
-def configure_secret():
-    namespace = _retrieve_namespace()
-    ctx.logger.info(
-        'Configuring docker secrets for namespace: {0}'.format(namespace)
-    )
-
-    command = 'kubectl create secret ' \
-              'docker-registry onap-docker-registry-key ' \
-              '--docker-server=nexus3.onap.org:10001 ' \
-              '--docker-username=docker ' \
-              '--docker-password=docker ' \
-              '--docker-email=email@email.com ' \
-              '--namespace={0}'.format(namespace)
-
-    ctx.logger.info('Command "{0}" will be executed'.format(command))
-    run(command)
-
-    ctx.logger.info('Docker secrets configured successfully')
diff --git a/cloudify/scripts/onap/create_init_pod.py b/cloudify/scripts/onap/create_init_pod.py
deleted file mode 100644
index c82172d15f..0000000000
--- a/cloudify/scripts/onap/create_init_pod.py
+++ /dev/null
@@ -1,65 +0,0 @@
-import pip
-
-from cloudify import ctx
-from cloudify.exceptions import NonRecoverableError
-
-
-SERVICES_FILE_PARTS_SEPARATOR = '---'
-
-
-def _import_or_install():
-    try:
-        import yaml
-    except ImportError:
-        pip.main(["install", "pyaml"])
-
-    try:
-        import cloudify_kubernetes.tasks as kubernetes_plugin
-    except ImportError:
-        pip.main([
-            "install",
-            "https://github.com/cloudify-incubator/cloudify-kubernetes-plugin/archive/1.2.1rc1.zip"
-        ])
-
-    import yaml
-    import cloudify_kubernetes.tasks as kubernetes_plugin
-
-    return yaml, kubernetes_plugin
-
-
-def _retrieve_path():
-    return ctx.node.properties.get('init_pod', None)
-
-
-def _save_deployment_result(key):
-    result = ctx.instance.runtime_properties['kubernetes']
-    ctx.instance.runtime_properties[key] = result
-    ctx.instance.runtime_properties['kubernetes'] = {}
-
-
-def _do_create_init_pod(kubernetes_plugin, yaml):
-    ctx.logger.info('Creating init pod')
-    init_pod_file_path = _retrieve_path()
-
-    if not init_pod_file_path:
-        raise NonRecoverableError('Init pod file is not defined.')
-
-    temp_file_path = ctx.download_resource_and_render(
-        init_pod_file_path
-    )
-
-    with open(temp_file_path) as temp_file:
-        init_pod_file_content = temp_file.read()
-        init_pod_yaml_content = yaml.load(init_pod_file_content)
-
-        kubernetes_plugin.resource_create(definition=init_pod_yaml_content)
-        _save_deployment_result('init_pod')
-
-    ctx.logger.info('Init pod created successfully')
-
-
-if __name__ == '__main__':
-    yaml, kubernetes_plugin = _import_or_install()
-
-    _do_create_init_pod(kubernetes_plugin, yaml)
-
diff --git a/cloudify/scripts/onap/create_namespace.py b/cloudify/scripts/onap/create_namespace.py
deleted file mode 100644
index c0f1f19680..0000000000
--- a/cloudify/scripts/onap/create_namespace.py
+++ /dev/null
@@ -1,101 +0,0 @@
-import pip
-
-from cloudify import ctx
-from cloudify.exceptions import NonRecoverableError
-
-
-def _import_or_install():
-    try:
-        import yaml
-    except ImportError:
-        pip.main(["install", "pyaml"])
-
-    try:
-        import cloudify_kubernetes.tasks as kubernetes_plugin
-    except ImportError:
-        pip.main([
-            "install",
-            "https://github.com/cloudify-incubator/cloudify-kubernetes-plugin/archive/1.2.1rc1.zip"
-        ])
-
-    import yaml
-    import cloudify_kubernetes.tasks as kubernetes_plugin
-
-    return yaml, kubernetes_plugin
-
-
-def _retrieve_namespace():
-    namespace = ctx.node.properties.get(
-        'namespace',
-        ctx.node.properties
-            .get('options', {})
-            .get('namespace', None)
-    )
-
-    if not namespace:
-        raise NonRecoverableError(
-            'Namespace is not defined (node={})'.format(ctx.node.name)
-        )
-
-    return namespace
-
-
-def _prepare_namespace_resource_template(name):
-    return {
-        'definition': {
-            'apiVersion': 'v1',
-            'kind': 'Namespace',
-            'metadata': {
-                'name': name,
-                'labels': {
-                    'name': name
-                },
-            },
-        },
-        'api_mapping': {
-            'create': {
-                'api': 'CoreV1Api',
-                'method': 'create_namespace',
-                'payload': 'V1Namespace'
-            },
-            'read': {
-                'api': 'CoreV1Api',
-                'method': 'read_namespace',
-            },
-            'delete': {
-                'api': 'CoreV1Api',
-                'method': 'delete_namespace',
-                'payload': 'V1DeleteOptions'
-            }
-        }
-    }
-
-
-def _save_deployment_result(key):
-    result = ctx.instance.runtime_properties['kubernetes']
-    ctx.instance.runtime_properties[key] = result
-    ctx.instance.runtime_properties['kubernetes'] = {}
-
-
-def _do_create_namespace(kubernetes_plugin):
-    namespace = _retrieve_namespace()
-    ctx.logger.info('Creating namespace: {0}'.format(namespace))
-
-    namespace_resource_template = _prepare_namespace_resource_template(
-        namespace
-    )
-
-    ctx.logger.debug(
-        'Kubernetes object which will be deployed: {0}'
-            .format(namespace_resource_template)
-    )
-
-    kubernetes_plugin.custom_resource_create(**namespace_resource_template)
-    _save_deployment_result('namespace')
-    ctx.logger.info('Namespace created successfully')
-
-
-if __name__ == '__main__':
-    _, kubernetes_plugin = _import_or_install()
-
-    _do_create_namespace(kubernetes_plugin)
diff --git a/cloudify/scripts/onap/create_resources_services.py b/cloudify/scripts/onap/create_resources_services.py
deleted file mode 100644
index 8548e29b70..0000000000
--- a/cloudify/scripts/onap/create_resources_services.py
+++ /dev/null
@@ -1,131 +0,0 @@
-import pip
-
-from cloudify import ctx
-
-
-SERVICES_FILE_PARTS_SEPARATOR = '---'
-
-
-def _import_or_install():
-    try:
-        import yaml
-    except ImportError:
-        pip.main(["install", "pyaml"])
-
-    try:
-        import cloudify_kubernetes.tasks as kubernetes_plugin
-    except ImportError:
-        pip.main([
-            "install",
-            "https://github.com/cloudify-incubator/cloudify-kubernetes-plugin/archive/1.2.1rc1.zip"
-        ])
-
-    try:
-        import jinja2
-    except ImportError:
-        pip.main(["install", "jinja2"])
-
-    import yaml
-    import jinja2
-    import cloudify_kubernetes.tasks as kubernetes_plugin
-
-    return yaml, kubernetes_plugin, jinja2
-
-
-def _init_jinja(jinja2):
-    return jinja2.Environment(
-        loader=jinja2.BaseLoader()
-    )
-
-
-def _render_template(jinja_env, template_content, values):
-    template_content = template_content.replace('.Values', 'Values')
-
-    template = jinja_env.from_string(template_content)
-    rendered_template = template.render(Values=values)
-    return rendered_template
-
-
-def _retrieve_resources_paths():
-    return ctx.node.properties.get('resources', [])
-
-
-def _retrieve_services_paths():
-    return ctx.node.properties.get('services', None)
-
-
-def _retrieve_values(yaml):
-    values_file_path = ctx.node.properties.get('values', None)
-
-    if values_file_path:
-        return yaml.load(ctx.get_resource(values_file_path))
-
-    ctx.logger.warn('Values file not found')
-
-
-def _save_deployment_result(key):
-    result = ctx.instance.runtime_properties['kubernetes']
-    ctx.instance.runtime_properties[key] = result
-    ctx.instance.runtime_properties['kubernetes'] = {}
-
-
-def _do_create_resources(kubernetes_plugin, yaml, jinja_env, values):
-    for path in _retrieve_resources_paths():
-        ctx.logger.info('Creating resource defined in: {0}'.format(path))
-
-        template_content = ctx.get_resource(path)
-        yaml_content = _render_template(
-            jinja_env,
-            template_content,
-            values
-        )
-        content = yaml.load(yaml_content)
-
-        kubernetes_plugin.resource_create(definition=content)
-        _save_deployment_result(
-            'resource_{0}'.format(content['metadata']['name'])
-        )
-
-    ctx.logger.info('Resources created successfully')
-
-
-def _do_create_services(kubernetes_plugin, yaml, jinja_env, values):
-    ctx.logger.info('Creating services')
-    services_file_path = _retrieve_services_paths()
-
-    if not services_file_path:
-        ctx.logger.warn(
-            'Service file is not defined. Skipping services provisioning !'
-        )
-
-        return
-
-    template_content = ctx.get_resource(services_file_path)
-    yaml_content = _render_template(
-        jinja_env,
-        template_content,
-        values
-    )
-
-    yaml_content_parts = \
-        yaml_content.split(SERVICES_FILE_PARTS_SEPARATOR)
-
-    for yaml_content_part in yaml_content_parts:
-        content = yaml.load(yaml_content_part)
-
-        kubernetes_plugin.resource_create(definition=content)
-        _save_deployment_result(
-            'service_{0}'.format(content['metadata']['name'])
-        )
-
-    ctx.logger.info('Services created successfully')
-
-
-if __name__ == '__main__':
-    yaml, kubernetes_plugin, jinja2 = _import_or_install()
-    jinja_env = _init_jinja(jinja2)
-    values = _retrieve_values(yaml)
-
-    _do_create_resources(kubernetes_plugin, yaml, jinja_env, values)
-    _do_create_services(kubernetes_plugin, yaml, jinja_env, values)
-
diff --git a/cloudify/scripts/onap/delete_init_pod.py b/cloudify/scripts/onap/delete_init_pod.py
deleted file mode 100644
index 1da805b959..0000000000
--- a/cloudify/scripts/onap/delete_init_pod.py
+++ /dev/null
@@ -1,64 +0,0 @@
-import pip
-
-from cloudify import ctx
-from cloudify.exceptions import NonRecoverableError
-
-
-SERVICES_FILE_PARTS_SEPARATOR = '---'
-
-
-def _import_or_install():
-    try:
-        import yaml
-    except ImportError:
-        pip.main(["install", "pyaml"])
-
-    try:
-        import cloudify_kubernetes.tasks as kubernetes_plugin
-    except ImportError:
-        pip.main([
-            "install",
-            "https://github.com/cloudify-incubator/cloudify-kubernetes-plugin/archive/1.2.1rc1.zip"
-        ])
-
-    import yaml
-    import cloudify_kubernetes.tasks as kubernetes_plugin
-
-    return yaml, kubernetes_plugin
-
-
-def _retrieve_path():
-    return ctx.node.properties.get('init_pod', None)
-
-
-def _set_deployment_result(key):
-    result = ctx.instance.runtime_properties.pop(key)
-    ctx.instance.runtime_properties['kubernetes'] = result
-
-
-def _do_delete_init_pod(kubernetes_plugin, yaml):
-    ctx.logger.info('Deleting init pod')
-    init_pod_file_path = _retrieve_path()
-
-    if not init_pod_file_path:
-        raise NonRecoverableError('Init pod file is not defined.')
-
-    temp_file_path = ctx.download_resource_and_render(
-        init_pod_file_path
-    )
-
-    with open(temp_file_path) as temp_file:
-        init_pod_file_content = temp_file.read()
-        init_pod_yaml_content = yaml.load(init_pod_file_content)
-
-        _set_deployment_result('init_pod')
-        kubernetes_plugin.resource_delete(definition=init_pod_yaml_content)
-
-    ctx.logger.info('Init pod deleted successfully')
-
-
-if __name__ == '__main__':
-    yaml, kubernetes_plugin = _import_or_install()
-
-    _do_delete_init_pod(kubernetes_plugin, yaml)
-
diff --git a/cloudify/scripts/onap/delete_namespace.py b/cloudify/scripts/onap/delete_namespace.py
deleted file mode 100644
index 6973e59944..0000000000
--- a/cloudify/scripts/onap/delete_namespace.py
+++ /dev/null
@@ -1,101 +0,0 @@
-import pip
-
-from cloudify import ctx
-from cloudify.exceptions import NonRecoverableError
-
-
-def _import_or_install():
-    try:
-        import yaml
-    except ImportError:
-        pip.main(["install", "pyaml"])
-
-    try:
-        import cloudify_kubernetes.tasks as kubernetes_plugin
-    except ImportError:
-        pip.main([
-            "install",
-            "https://github.com/cloudify-incubator/cloudify-kubernetes-plugin/archive/1.2.1rc1.zip"
-        ])
-
-    import yaml
-    import cloudify_kubernetes.tasks as kubernetes_plugin
-
-    return yaml, kubernetes_plugin
-
-
-def _retrieve_namespace():
-    namespace = ctx.node.properties.get(
-        'namespace',
-        ctx.node.properties
-            .get('options', {})
-            .get('namespace', None)
-    )
-
-    if not namespace:
-        raise NonRecoverableError(
-            'Namespace is not defined (node={})'.format(ctx.node.name)
-        )
-
-    return namespace
-
-
-def _prepare_namespace_resource_template(name):
-    return {
-        'definition': {
-            'apiVersion': 'v1',
-            'kind': 'Namespace',
-            'metadata': {
-                'name': name,
-                'labels': {
-                    'name': name
-                },
-            },
-        },
-        'api_mapping': {
-            'create': {
-                'api': 'CoreV1Api',
-                'method': 'create_namespace',
-                'payload': 'V1Namespace'
-            },
-            'read': {
-                'api': 'CoreV1Api',
-                'method': 'read_namespace',
-            },
-            'delete': {
-                'api': 'CoreV1Api',
-                'method': 'delete_namespace',
-                'payload': 'V1DeleteOptions'
-            }
-        }
-    }
-
-
-def _set_deployment_result(key):
-    result = ctx.instance.runtime_properties.pop(key)
-    ctx.instance.runtime_properties['kubernetes'] = result
-
-
-def _do_delete_namespace(kubernetes_plugin):
-    namespace = _retrieve_namespace()
-    ctx.logger.info('Deleting namespace: {0}'.format(namespace))
-
-    namespace_resource_template = _prepare_namespace_resource_template(
-        namespace
-    )
-
-    ctx.logger.debug(
-        'Kubernetes object which will be deleted: {0}'
-            .format(namespace_resource_template)
-    )
-
-    _set_deployment_result('namespace')
-    kubernetes_plugin.custom_resource_delete(**namespace_resource_template)
-    ctx.logger.info('Namespace deleted successfully')
-
-
-if __name__ == '__main__':
-    _, kubernetes_plugin = _import_or_install()
-
-    _do_delete_namespace(kubernetes_plugin)
-
diff --git a/cloudify/scripts/onap/delete_resources_services.py b/cloudify/scripts/onap/delete_resources_services.py
deleted file mode 100644
index 305a7484bd..0000000000
--- a/cloudify/scripts/onap/delete_resources_services.py
+++ /dev/null
@@ -1,132 +0,0 @@
-import pip
-
-from cloudify import ctx
-from cloudify.exceptions import NonRecoverableError
-
-
-SERVICES_FILE_PARTS_SEPARATOR = '---'
-
-
-def _import_or_install():
-    try:
-        import yaml
-    except ImportError:
-        pip.main(["install", "pyaml"])
-
-    try:
-        import cloudify_kubernetes.tasks as kubernetes_plugin
-    except ImportError:
-        pip.main([
-            "install",
-            "https://github.com/cloudify-incubator/cloudify-kubernetes-plugin/archive/1.2.1rc1.zip"
-        ])
-
-    try:
-        import jinja2
-    except ImportError:
-        pip.main(["install", "jinja2"])
-
-    import yaml
-    import jinja2
-    import cloudify_kubernetes.tasks as kubernetes_plugin
-
-    return yaml, kubernetes_plugin, jinja2
-
-
-def _init_jinja(jinja2):
-    return jinja2.Environment(
-        loader=jinja2.BaseLoader()
-    )
-
-
-def _render_template(jinja_env, template_content, values):
-    template_content = template_content.replace('.Values', 'Values')
-
-    template = jinja_env.from_string(template_content)
-    rendered_template = template.render(Values=values)
-    return rendered_template
-
-
-def _retrieve_resources_paths():
-    return ctx.node.properties.get('resources', [])
-
-
-def _retrieve_services_paths():
-    return ctx.node.properties.get('services', None)
-
-
-def _retrieve_values(yaml):
-    values_file_path = ctx.node.properties.get('values', None)
-
-    if values_file_path:
-        return yaml.load(ctx.get_resource(values_file_path))
-
-    ctx.logger.warn('Values file not found')
-
-
-def _set_deployment_result(key):
-    result = ctx.instance.runtime_properties.pop(key)
-    ctx.instance.runtime_properties['kubernetes'] = result
-
-
-def _do_delete_resources(kubernetes_plugin, yaml, jinja_env, values):
-    for path in _retrieve_resources_paths():
-        ctx.logger.info('Deleting resource defined in: {0}'.format(path))
-
-        template_content = ctx.get_resource(path)
-        yaml_content = _render_template(
-            jinja_env,
-            template_content,
-            values
-        )
-        content = yaml.load(yaml_content)
-
-        _set_deployment_result(
-            'resource_{0}'.format(content['metadata']['name'])
-        )
-        kubernetes_plugin.resource_delete(definition=content)
-
-    ctx.logger.info('Resources deleted successfully')
-
-
-def _do_delete_services(kubernetes_plugin, yaml, jinja_env, values):
-    ctx.logger.info('Deleting services')
-    services_file_path = _retrieve_services_paths()
-
-    if not services_file_path:
-        ctx.logger.warn(
-            'Service file is not defined. Skipping services provisioning !'
-        )
-
-        return
-
-    template_content = ctx.get_resource(services_file_path)
-    yaml_content = _render_template(
-        jinja_env,
-        template_content,
-        values
-    )
-
-    yaml_content_parts = \
-        yaml_content.split(SERVICES_FILE_PARTS_SEPARATOR)
-
-    for yaml_content_part in yaml_content_parts:
-        content = yaml.load(yaml_content_part)
-
-        _set_deployment_result(
-            'service_{0}'.format(content['metadata']['name'])
-        )
-        kubernetes_plugin.resource_delete(definition=content)
-
-    ctx.logger.info('Services deleted successfully')
-
-
-if __name__ == '__main__':
-    yaml, kubernetes_plugin, jinja2 = _import_or_install()
-    jinja_env = _init_jinja(jinja2)
-    values = _retrieve_values(yaml)
-
-    _do_delete_services(kubernetes_plugin, yaml, jinja_env, values)
-    _do_delete_resources(kubernetes_plugin, yaml, jinja_env, values)
-
-
diff --git a/cloudify/scripts/tasks.py b/cloudify/scripts/tasks.py
deleted file mode 100644
index 035a780cb3..0000000000
--- a/cloudify/scripts/tasks.py
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env python
-
-from fabric.api import run
-
-
-def label_node(labels, hostname):
-    if labels:
-        label_list = []
-        for key, value in labels.items():
-            label_pair_string = '%s=%s' % (key, value)
-            label_list.append(label_pair_string)
-        label_string = ' '.join(label_list)
-        command = 'kubectl label nodes %s %s' % (hostname, label_string)
-        run(command)
-
-
-def stop_node(hostname):
-    command = 'kubectl drain %s' % (hostname)
-    run(command)
-
-
-def delete_node(hostname):
-    command = 'kubectl delete no %s' % (hostname)
-    run(command)