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https://github.com/Security-Onion-Solutions/securityonion.git
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66 lines
3.3 KiB
Plaintext
Executable File
66 lines
3.3 KiB
Plaintext
Executable File
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#!/bin/bash
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{%- if grains['role'] in ['so-node', 'so-heavynode'] %}
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{%- set ELASTICSEARCH_HOST = salt['pillar.get']('elasticsearch:mainip', '') -%}
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{%- set ELASTICSEARCH_PORT = salt['pillar.get']('elasticsearch:es_port', '') -%}
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{%- set LOG_SIZE_LIMIT = salt['pillar.get']('elasticsearch:log_size_limit', '') -%}
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{%- elif grains['role'] in ['so-eval', 'so-managersearch', 'so-standalone'] %}
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{%- set ELASTICSEARCH_HOST = salt['pillar.get']('manager:mainip', '') -%}
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{%- set ELASTICSEARCH_PORT = salt['pillar.get']('manager:es_port', '') -%}
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{%- set LOG_SIZE_LIMIT = salt['pillar.get']('manager:log_size_limit', '') -%}
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{%- endif -%}
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# Copyright 2014,2015,2016,2017,2018,2019,2020 Security Onion Solutions, LLC
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#. /usr/sbin/so-elastic-common
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#. /etc/nsm/securityonion.conf
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LOG="/opt/so/log/curator/so-curator-closed-delete.log"
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# Check for 2 conditions:
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# 1. Are Elasticsearch indices using more disk space than LOG_SIZE_LIMIT?
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# 2. Are there any closed indices that we can delete?
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# If both conditions are true, keep on looping until one of the conditions is false.
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while [[ $(du -hs --block-size=1GB /nsm/elasticsearch/nodes | awk '{print $1}' ) -gt "{{LOG_SIZE_LIMIT}}" ]] &&
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{% if grains['role'] in ['so-node','so-heavynode'] %}
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curl -s -k https://{{ELASTICSEARCH_HOST}}:{{ELASTICSEARCH_PORT}}/_cat/indices?h=index\&expand_wildcards=closed > /dev/null; do
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{% else %}
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curl -s {{ELASTICSEARCH_HOST}}:{{ELASTICSEARCH_PORT}}/_cat/indices?h=index\&expand_wildcards=closed > /dev/null; do
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{% endif %}
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# We need to determine OLDEST_INDEX:
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# First, get the list of closed indices using _cat/indices?h=index\&expand_wildcards=closed.
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# Then, sort by date by telling sort to use hyphen as delimiter and then sort on the third field.
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# Finally, select the first entry in that sorted list.
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{% if grains['role'] in ['so-node','so-heavynode'] %}
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OLDEST_INDEX=$(curl -s -k https://{{ELASTICSEARCH_HOST}}:{{ELASTICSEARCH_PORT}}/_cat/indices?h=index\&expand_wildcards=closed | sort -t- -k3 | head -1)
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{% else %}
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OLDEST_INDEX=$(curl -s {{ELASTICSEARCH_HOST}}:{{ELASTICSEARCH_PORT}}/_cat/indices?h=index\&expand_wildcards=closed | sort -t- -k3 | head -1)
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{% endif %}
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# Now that we've determined OLDEST_INDEX, ask Elasticsearch to delete it.
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{% if grains['role'] in ['so-node','so-heavynode'] %}
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curl -XDELETE -k https://{{ELASTICSEARCH_HOST}}:{{ELASTICSEARCH_PORT}}/${OLDEST_INDEX}
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{% else %}
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curl -XDELETE {{ELASTICSEARCH_HOST}}:{{ELASTICSEARCH_PORT}}/${OLDEST_INDEX}
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{% endif %}
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# Finally, write a log entry that says we deleted it.
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echo "$(date) - Used disk space exceeds LOG_SIZE_LIMIT ({{LOG_SIZE_LIMIT}} GB) - Index ${OLDEST_INDEX} deleted ..." >> ${LOG}
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done
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