Install server and logging config into GRAYLOG_HOME/config #298
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We previously installed the configuration files into the GRAYLOG_HOME/data/config directory. We also documented that users should mount a volume to GRAYLOG_HOME/data to persist data. When using a volume mount, Docker will copy existing files in GRAYLOG_HOME/data to the new volume. When using a bind mount (e.g., local directory), the directory doesn't include existing files and the server refuses to start because it can't find the config files. With the config files outside of the data directory, this will not happen anymore. The entrypoint script will use existing config files in data/config to ensure existing setups with modified config files continue to work when updating to the new image. See Graylog2/docker-compose#99 for details. Also adjust list of directories that get created in GRAYLOG_HOME/data. We don't need the log and plugin directories.
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We previously installed the configuration files into the GRAYLOG_HOME/data/config directory. We also documented that users should mount a volume to GRAYLOG_HOME/data to persist data.
When using a volume mount, Docker will copy existing files in GRAYLOG_HOME/data to the new volume. When using a bind mount (e.g., local directory), the directory doesn't include existing files, and the server refuses to start because it can't find the config files.
With the config files outside the data directory, this will no longer happen.
The entrypoint script will use existing config files in data/config to ensure existing setups with modified config files continue to work when updating to the new image.
See Graylog2/docker-compose#99 for details.
Also, adjust the list of directories that get created in GRAYLOG_HOME/data. We don't need the log and plugin directories.