Can't upload configset due to authentication being disabled by default

[gene-miller]

Following the documentation for setting up solr with zookeeper produced the following error when attempting to upload a config set:

 Configset upload failed with error code 400: Solr HTTP error: OK (400) { "responseHeader":{ "status":400, "QTime":66}, "error":{ "metadata":[ "error-class","org.apache.solr.common.SolrException", "root-error-class","org.apache.solr.common.SolrException"], "msg":"Trying to make an unstrusted ConfigSet update on a trusted configSet", "code":400}} 

This is caused by the fact that authentication is disabled by default.

it was necessary to manually enable authentication from inside the solr container using:

solr auth enable -type basicAuth -prompt true -z zookeeper:2181 -blockUnknown true

[csandanov]

init action should be run once zookeeper and solr started. You can run action from inside the container as make init -f /usr/local/bin/actions.mk. ZK_HOST env var must be set