new: [docker-host] be much more strict in the way to handle creation of links and updates.

precise/host/hooks/install.d/70-0k.sh

@@ -71,7 +71,7 @@ fi
         git clone $GIT_0K_CLONE_OPTIONS "$GIT_0K_BASE/0k/0k-charm.git"
     fi
 
-    ln -sfn /opt/apps/0k-charm/bin/charm /usr/local/sbin/
+    ln -sfn /opt/apps/0k-charm/bin/charm /usr/local/sbin/charm
 )
 
 
@@ -147,7 +147,7 @@ fi
     ln -sfn /opt/apps/0k-docker/bin/* /usr/local/sbin/
     ln -sfn /opt/apps/0k-docker/bin/docker-clean /etc/cron.daily/docker-clean
     ## in update, will remove broken links to binaries that were removed
-    find -L /usr/local/sbin -maxdepth 1 -type l -delete
+    find -L /usr/local/sbin -maxdepth 1 -type l -ilname /opt/apps/0k-docker/\* -delete
 )
 
 
@@ -207,7 +207,7 @@ else
     mkdir -p /opt/apps && cd /opt/apps
     git clone "$GIT_0K_BASE"/0k/0k-compose.git
 fi
-[ -e /usr/local/bin/compose ] || ln -sfv /opt/apps/0k-compose/bin/compose /usr/local/bin/
+[ -e /usr/local/bin/compose ] || ln -sfnv /opt/apps/0k-compose/bin/compose /usr/local/bin/
 rm -rf /var/cache/compose
 
 
@@ -253,8 +253,8 @@ fi
         git checkout master
     fi
 
-    ln -sf /opt/apps/0k-pgm/bin/* /usr/local/bin/
+    ln -sfnv /opt/apps/0k-pgm/bin/* /usr/local/bin/
+    find -L /usr/local/bin -maxdepth 1 -type l -ilname /opt/apps/0k-pgm/bin/\* -delete
     apt-get install -y --force-yes pv buffer < /dev/null
     apt-get install -y postgresql-client </dev/null
-
 )