85 lines
2.7 KiB
Bash
85 lines
2.7 KiB
Bash
#!/bin/bash
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#
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# Inspired by the solr.sh from jkaberg (https://github.com/jkaberg/mailinabox-sogo)
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# with some modifications
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#
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# IMAP search with lucene via solr
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# --------------------------------
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#
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# By default dovecot uses its own Squat search index that has awful performance
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# on large mailboxes. Dovecot 2.1+ has support for using Lucene internally but
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# this didn't make it into the Ubuntu packages, so we use Solr instead to run
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# Lucene for us.
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#
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# Solr runs as a tomcat process. The dovecot solr plugin talks to solr via its
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# HTTP interface, causing mail to be indexed when searches occur, and getting
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# results back.
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source setup/functions.sh # load our functions
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source /etc/mailinabox.conf # load global vars
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# Install packages and basic configuation
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# ---------------------------------------
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echo "Installing Solr..."
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# Install packages
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apt_install solr-tomcat dovecot-solr
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# Solr requires a schema to tell it how to index data, this is provided by dovecot
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cp /usr/share/dovecot/solr-schema.xml /etc/solr/conf/schema.xml
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# Update the dovecot plugin configuration
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#
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# Break-imap-search makes search work the way users expect, rather than the way
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# the IMAP specification expects
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tools/editconf.py /etc/dovecot/conf.d/10-mail.conf \
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mail_plugins="fts fts_solr"
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cat > /etc/dovecot/conf.d/90-plugin-fts.conf << EOF;
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plugin {
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fts = solr
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fts_autoindex = yes
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fts_solr = break-imap-search url=http://127.0.0.1:8080/solr/
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}
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EOF
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# Bump memory allocation for Solr.
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# Not needed? I'll let it sit here for a while.
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#echo 'export JAVA_OPTS=-Xms512M -Xmx1024M' > /usr/share/tomcat7/bin/setenv.sh
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# Install cronjobs to keep FTS up to date
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hide_output install -m 755 conf/cronjob/dovecot /etc/cron.daily/
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hide_output install -m 644 conf/cronjob/solr /etc/cron.d/
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# PERMISSIONS
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# Ensure configuration files are owned by dovecot and not world readable.
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chown -R mail:dovecot /etc/dovecot
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chmod -R o-rwx /etc/dovecot
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cat > /etc/systemd/system/tomcat9.d/solr-permissions.conf << EOF
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[Service]
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ReadWritePaths=/var/lib/solr/
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ReadWritePaths=/var/lib/solr/data/
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EOF
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# Restart services to reload solr schema & dovecot plugins
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restart_service tomcat9
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restart_service dovecot
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# Kickoff building the index
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# Per doveadm-fts manpage: Scan what mails exist in the full text search index
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# and compare those to what actually exist in mailboxes.
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# This removes mails from the index that have already been expunged and makes
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# sure that the next doveadm index will index all the missing mails (if any).
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doveadm fts rescan -A
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# Adds unindexed files to the fts database
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# * `-q`: Queues the indexing to be run by indexer process. (will background the indexing)
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# * `-A`: All users
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# * `'*'`: All folders
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doveadm index -q -A '*'
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