CODEWITHSUNDEEP
linuxdockerxqueryexist-db
B Polit
B Polit

Reputation: 190

eXist-DB Index setup fails during installation in Docker Container

I've created an eXist-DB based application. This application should be deployed inside a Docker container. My application relies on some heavy pre-computation, which should store the result in the db-index (lucene).

For example parts of my collection.xconflook like:

<?xml version="1.0" encoding="UTF-8"?>
<collection xmlns="http://exist-db.org/collection-config/1.0">
    <index xmlns:tei="http://www.tei-c.org/ns/1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema">
        <fulltext default="none" attributes="false"/>
        <lucene>
            <module uri="http://example.org/index" prefix="index" at="index_.xql"/>
            <text qname="tei:TEI">
                <!-- more fields here -->
                <field name="title" expression="index:get-title(.)"/>
            </text>
           <!-- more here-->
        </lucene>
    </index>
</collection>

For the calculation I am importing an external module (index_.xql), which is placed in the root of my application. This module holds more or less complex logic, which used here for the calculation.

When I am building and starting the container with a Mac OS (Apple Silicon) host everything works fine (using the default docker context). When I am switching to a Linux host (e.g. a VPS) things don't work as expected any longer. The logs show the following error-message:

[main] ERROR (AbstractFieldConfig.java [compile]:145) - Failed to compile expression: declare namespace tei="http://www.tei-c.org/ns/1.0";
declare namespace xs="http://www.w3.org/2001/XMLSchema";
import module namespace index="http://example.org/index" at "xmldb:exist:///db/apps/myapp/index_.xql";
index:get-title(.): err:XQST0059 error found while loading module index: Module location hint URI 'xmldb:exist:///db/apps/myapp/index_.xql' does not refer to anything.

I've thought maybe it could be a problem with file privileges, but everything seems to be right. I've also tried running with PUID=1000 and PGID=1000. But does not disappear.

For more context here is my Dockerfile

FROM docker.io/stadlerpeter/existdb:6

USER wegajetty

ARG BUILD_DIR

COPY --chown=wegajetty ${BUILD_DIR}/*.xar ${EXIST_HOME}/autodeploy/

I can reproduce the problem on my mac, if am switching to a different container runtime context like containerd. For me there seems to be no obvious reason for this problem.

So maybe anyone knows a way how to fix this problem. Thanks in advance!

Upvotes: 0

Views: 104

Answers (1)

YaHeWe
YaHeWe

Reputation: 11

Might be the docker UID Problem. Im currently facing something similar with Peters Docker setup. Initial copy of .xars doesn't really deploy apps on my linux server, on my MacBook it kinda works. Since docker has a history of problems with rights and permissions it might be the right thing to look into this a bit more. Maybe check this out. It also describes the differences between Mac and Linux.

Upvotes: 0

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