Some kubernetes environments require running services as arbitrary UIDs. The Thredds image attempts to copy files to /opt/tomcat/content/thredds on startup which fails in these environments.
This PR mounts an emptyDir at /opt/tomcat/content/thredds to allow the startup procedure to write it's files. As a side effect, the catalog.xml and threddsConfig.xml baked into the image are overwritten with the empty directory. catalog.xml was already being mounted from a configMap so that hasn't changed, but now threddsConfig.xml is also mounted from a separate configMap.
Both configMaps default to the same existing documents, but can now be overridden at deploy time with something like --set-file data.thredds.config."catalog\.xml"=/path/to/local/catalog.xml
Some kubernetes environments require running services as arbitrary UIDs. The Thredds image attempts to copy files to
/opt/tomcat/content/threddson startup which fails in these environments.This PR mounts an
emptyDirat/opt/tomcat/content/threddsto allow the startup procedure to write it's files. As a side effect, thecatalog.xmlandthreddsConfig.xmlbaked into the image are overwritten with the empty directory.catalog.xmlwas already being mounted from aconfigMapso that hasn't changed, but nowthreddsConfig.xmlis also mounted from a separateconfigMap.Both
configMaps default to the same existing documents, but can now be overridden at deploy time with something like--set-file data.thredds.config."catalog\.xml"=/path/to/local/catalog.xml