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# roles/myrole/action_plugins/myshell.py

class ActionModule(ActionBase):

    def run(self, tmp=None, task_vars=None):

        super(ActionModule, self).run(tmp, task_vars)
        module_args = self._task.args.copy()
        module_args['_raw_params'] = module_args.get('cmd')
        module_args['_uses_shell'] = True

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OCP 4.2/4.3 All-In-One (UPI mode)

This document assume reader is familiar with the OCP4x installation process.

Before Deployment

• Setup the install-config.yaml to deploy a single master and no workers

  apiVersion: v1
  baseDomain: example.com
  

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root@98c54cfbe5b9:/examples# mpirun -np 1     -H localhost:1     -bind-to none -map-by slot     -x NCCL_DEBUG=INFO -x LD_LIBRARY_PATH     -mca pml ob1 -mca btl ^openib         python benchmarks-horovod_v2/scripts/tf_cnn_benchmarks/tf_cnn_benchmarks.py         --model resnet101         --batch_size 16         --variable_update horovod
/usr/local/lib/python3.5/dist-packages/h5py/__init__.py:36: FutureWarning: Conversion of the second argument of issubdtype from `float` to `np.floating` is deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type`.
  from ._conv import register_converters as _register_converters
TensorFlow:  1.5
Model:       resnet101
Dataset:     imagenet (synthetic)
Mode:        training
SingleSess:  False
Batch size:  16 global
             16.0 per device

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with tf.device("/job:ps/task:0"):
  weights_1 = tf.Variable(...)
  biases_1 = tf.Variable(...)
  ...
  
worker_devices = ["/job:worker/task:0/gpu:0", ..., "/job:worker/task:7/gpu:0"]
for worker_device in worker_devices:
  with tf.device(worker_device):
    with tf.device("/job:worker/task:7"):
    input, labels = ...

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# /etc/pdns/pdns.conf 

setuid=pdns
setgid=pdns
launch=gmysql
gmysql-host=localhost
gmysql-user=myid
gmysql-password=mypass
gmysql-dbname=powerdns
local-port=50

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#############################################################################
# current status check
#############################################################################

# suse version
cat /etc/os-release
  NAME="openSUSE Leap"
  VERSION="42.1"
  VERSION_ID="42.1"
  PRETTY_NAME="openSUSE Leap 42.1 (x86_64)"

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#!/opt/openstack/venv/bin/python
import MySQLdb
import sys
import json

connection = MySQLdb.connect(
    host=sys.argv[1], user="nova",
    passwd=sys.argv[2], db="nova")
cursor = connection.cursor()
cursor.execute("select network_info, instance_uuid from instance_info_caches where deleted=0")

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import signal, os, time

def handler(signum, frame):
    print 'Signal handler called with signal', signum
    raise IOError("Couldn't open device!")

# Set the signal handler and a 5-second alarm
signal.signal(signal.SIGALRM, handler)
signal.alarm(5)

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 - name: create repo file of myrepository
    ini_file: dest=/etc/yum.repos.d/myrepository.repo
            section="{{ item.section }}"
            option="{{ item.option }}"
            value="{{ item.value }}"
    with_items:
        - { section: 'myrepository', option: 'name', value: 'myrepository_repo'}
        - { section: 'myrepository', option: 'baseurl', value: 'http://xxx.xxx.xxx.xxx/'}
        - { section: 'myrepository', option: 'enabled', value: '1'}
        - { section: 'myrepository', option: 'gpgcheck', value: '0'}

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import oslo_db.sqlalchemy.engines as engines
import sqlalchemy
# change DBPASS and DBADDR suitable for your environment
url = sqlalchemy.engine.url.make_url('mysql+pymysql://keystone:DBPASS@DBADDR/keystone')
engine = sqlalchemy.create_engine(url)
con = engines._test_connection(engine, 10, 10)
rs = con.execute('show databases')
for row in rs:
  row