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[mc] Check writability of /data

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Document JVM_OPTS
For #176 and #177
This commit is contained in:
Geoff Bourne 2017-09-02 12:24:09 -05:00
parent 5afd98edd8
commit 463cc62b75
2 changed files with 16 additions and 1 deletions
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8
minecraft-server/README.md
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@ -683,7 +683,7 @@ To use this option pass the environment variable `REMOVE_OLD_MODS="TRUE"`, such
**NOTE:** This option will be taken into account only when option `MODPACK` is also used.
**WARNING:** All content of the `mods` or `plugins` directory will be deleted
**WARNING:** All content of the `mods` or `plugins` directory will be deleted
before unpacking new content from the zip file.
### Online mode
@ -710,3 +710,9 @@ The values of all three are passed directly to the JVM and support format/units
### /data ownership
In order to adapt to differences in `UID` and `GID` settings the entry script will attempt to correct ownership and writability of the `/data` directory. This logic can be disabled by setting `-e SKIP_OWNERSHIP_FIX=TRUE`.
### JVM Options
General JVM options can be passed to the Minecraft Server invocation by passing a `JVM_OPTS`
environment variable. Options like `-X` that need to proceed general JVM options can be passed
via a `JVM_XX_OPTS` environment variable.

9
minecraft-server/start-minecraft.sh
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@ -9,6 +9,10 @@ if [ ! -e /data/eula.txt ]; then
if [ "$EULA" != "" ]; then
echo "# Generated via Docker on $(date)" > eula.txt
echo "eula=$EULA" >> eula.txt
if [ $? != 0 ]; then
echo "ERROR: unable to write eula to /data. Please make sure attached directory is writable by uid=${UID}"
exit 2
fi
else
echo ""
echo "Please accept the Minecraft EULA at"
@ -20,6 +24,11 @@ if [ ! -e /data/eula.txt ]; then
fi
fi
if ! touch /data/.verify_access; then
echo "ERROR: /data doesn't seem to be writable. Please make sure attached directory is writable by uid=${UID} "
exit 2
fi
SERVER_PROPERTIES=/data/server.properties
FTB_DIR=/data/FeedTheBeast
VERSIONS_JSON=https://launchermeta.mojang.com/mc/game/version_manifest.json