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Easier way to make Fabric init BigchainDB on only 1 node

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This commit is contained in:
troymc 2016-04-25 16:51:38 +02:00
parent dca29ffe9f
commit 3f02329cdf
2 changed files with 9 additions and 31 deletions
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30
deploy-cluster-aws/fabfile.py vendored
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@ -5,7 +5,7 @@ BigchainDB, including its storage backend (RethinkDB).
from __future__ import with_statement, unicode_literals
from fabric.api import sudo, env
from fabric.api import sudo, env, hosts
from fabric.api import task, parallel
from fabric.contrib.files import sed
from fabric.operations import run, put
@ -30,28 +30,6 @@ newrelic_license_key = 'you_need_a_real_license_key'
######################################################################
# DON'T PUT @parallel
@task
def set_hosts(hosts):
"""A helper function to change env.hosts from the
command line.
Args:
hosts (str): 'one_node' or 'two_nodes'
Example:
fab set_hosts:one_node init_bigchaindb
"""
if hosts == 'one_node':
env.hosts = public_dns_names[:1]
elif hosts == 'two_nodes':
env.hosts = public_dns_names[:2]
else:
raise ValueError('Invalid input to set_hosts.'
' Expected one_node or two_nodes.'
' Got {}'.format(hosts))
# Install base software
@task
@parallel
@ -141,10 +119,10 @@ def configure_bigchaindb():
# Initialize BigchainDB
# i.e. create the database, the tables,
# the indexes, and the genesis block.
# (This only needs to be run on one node.)
# Call using:
# fab set_hosts:one_node init_bigchaindb
# (The @hosts decorator is used to make this
# task run on only one node. See http://tinyurl.com/h9qqf3t )
@task
@hosts(public_dns_names[0])
def init_bigchaindb():
run('bigchaindb init', pty=False)

10
deploy-cluster-aws/startup.sh
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@ -94,11 +94,11 @@ fab configure_bigchaindb
# TODO: Add list of public keys to keyring of all nodes
# Send a "bigchaindb init" command to one node
# to initialize the BigchainDB database
# i.e. create the database, the tables,
# the indexes, and the genesis block.
fab set_hosts:one_node init_bigchaindb
# Initialize BigchainDB (i.e. Create the RethinkDB database,
# the tables, the indexes, and genesis glock). Note that
# this will only be sent to one of the nodes, see the
# definition of init_bigchaindb() in fabfile.py to see why.
fab init_bigchaindb
# Start BigchainDB on all the nodes using "screen"
fab start_bigchaindb