During csar install, it crashes in a sun lib, this is due to fontconfig missing on alpine image

15:29:08.949 [pool-4-thread-3] ERROR org.onap.clamp.clds.sdc.controller.SdcSingleController - Unexpected exception caught during the notification processing
java.lang.NullPointerException: null
at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264)
at sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:219)
at sun.awt.FontConfiguration.init(FontConfiguration.java:107)
at sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:774)
at sun.font.SunFontManager$2.run(SunFontManager.java:431)
at java.security.AccessController.doPrivileged(Native Method)
at sun.font.SunFontManager.<init>(SunFontManager.java:376)