Add tool for creating users and groups

When executed in split user mode, Ganeti requires a specific set of users
and groups to be created in the appropriate way.

This commit introduces a tool that takes care of that automatically.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

.gitignore

@@ -99,6 +99,7 @@
 /tools/kvm-ifup
 /tools/burnin
 /tools/ensure-dirs
+/tools/users-setup
 /tools/vcluster-setup
 /tools/node-cleanup
 /tools/node-daemon-setup

Makefile.am

@@ -181,6 +181,7 @@ CLEANFILES = \
 	$(man_MANS) \
 	$(manhtml) \
 	tools/kvm-ifup \
+	tools/users-setup \
 	tools/vcluster-setup \
 	stamp-directories \
 	stamp-srclinks \
@@ -832,6 +833,7 @@ nodist_tools_python_scripts = \
 
 nodist_tools_SCRIPTS = \
 	$(nodist_tools_python_scripts) \
+	tools/users-setup \
 	tools/vcluster-setup
 
 pkglib_python_scripts = \
@@ -882,6 +884,7 @@ EXTRA_DIST = \
 	devel/upload \
 	devel/webserver \
 	tools/kvm-ifup.in \
+	tools/users-setup.in \
 	tools/vcluster-setup.in \
 	$(docinput) \
 	doc/html \
@@ -1254,6 +1257,10 @@ tools/kvm-ifup: tools/kvm-ifup.in $(REPLACE_VARS_SED)
 	sed -f $(REPLACE_VARS_SED) < $< > $@
 	chmod +x $@
 
+tools/users-setup: tools/users-setup.in $(REPLACE_VARS_SED)
+	sed -f $(REPLACE_VARS_SED) < $< > $@
+	chmod +x $@
+
 tools/vcluster-setup: tools/vcluster-setup.in $(REPLACE_VARS_SED)
 	sed -f $(REPLACE_VARS_SED) < $< > $@
 	chmod +x $@

tools/users-setup.in

+#!/bin/sh
+#Create common groups
+addgroup --system @GNTDAEMONSGROUP@
+addgroup --system @GNTADMINGROUP@
+
+#Create user-specific groups
+addgroup --system @GNTMASTERUSER@
+addgroup --system @GNTRAPIUSER@
+addgroup --system @GNTCONFDUSER@
+
+#Create users
+adduser --system --ingroup @GNTMASTERDGROUP@ @GNTMASTERUSER@
+adduser --system --ingroup @GNTRAPIGROUP@ @GNTRAPIUSER@
+adduser --system --ingroup @GNTCONFDGROUP@ @GNTCONFDUSER@
+adduser --system @GNTNODEDUSER@
+
+#Add users to extra groups
+for u in @GNTMASTERUSER@ @GNTCONFDUSER@ @GNTRAPIUSER@
+do
+  adduser $u @GNTDAEMONSGROUP@
+done
+
+for u in @GNTMASTERUSER@ @GNTRAPIUSER@
+do
+  adduser $u @GNTADMINGROUP@
+done