Move puppet configuration out of manifest and into extlookup() CSV
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Key: BIGTOP-313
URL: https://issues.apache.org/jira/browse/BIGTOP-313
Project: Bigtop
Issue Type: Improvement
Components: Deployment
Reporter: Patrick Taylor Ramsey
Priority: Minor
Previously, bigtop-deploy puppet could only be configured by editing puppet
manifests, or through a small number of environment variables that set facter
facts. I've rewritten cluster.pp to use extlookup to read configuration from a
site-specific CSV file with sane defaults for most options (only
hadoop_head_node and bigtop_yumrepo_uri are required to be set). These changes
should make it easier to automate deploying multiple clusters with different
configurations from the same manifests.
As written, the CSV files must live in $confdir/config/, where $confdir is the
puppet config directory. This means that if you are manually calling 'puppet
agent' on these manifests (rather than serving them from a puppet master), you
are now required to specify --confdir in addition to --modulepath.
At some point in the future, may be worth moving to hiera, as yaml is a lot
prettier and more flexible than CSV. I did this using extlookup so as not to
introduce external dependencies (since extlookup is now in puppet core).
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