add hooks in debconf to create a special user to collect apache logs

debian/alternc-slave.config

@@ -164,6 +164,7 @@ db_input low alternc-slave/mysql/client || true
 db_input low alternc-slave/sql/backup_type || true
 db_input low alternc-slave/sql/overwrite || true
 db_input low alternc-slave/monitor_ip || true
+db_input low alternc-slave/mergelog-key || true
 db_go
 
 # vim: et sw=4

debian/alternc-slave.postinst

@@ -43,6 +43,18 @@ case "$1" in
     # ajoute l'user postfix au groupe sasl
     adduser --quiet postfix sasl
 
+    db_get "alternc-slave/mergelog-key"
+    if [ "X$ret" != "" ]; then
+        echo "Creating alternc-mergelog account"
+        adduser --quiet --system --home /var/run/alternc-mergelog --shell /bin/false --ingroup adm alternc-mergelog
+        if [ ! grep -q "$ret" /var/run/alternc-mergelog/.ssh/authorized_keys ]; then
+            mkdir -p /var/run/alternc-mergelog/.ssh
+            echo "$ret" >> /var/run/alternc-mergelog/.ssh/authorized_keys
+            chown -R alternc-mergelog:adm /var/run/alternc-mergelog/.ssh
+            chmod -R og-rwx /var/run/alternc-mergelog/.ssh
+        fi
+    fi
+
     # corriger les permissions du chroot
     mkdir -p /var/spool/postfix/var/run/saslauthd || true
     dpkg-statoverride --quiet --update --add root sasl 710 /var/spool/postfix/var/run/saslauthd  || true

debian/alternc-slave.templates

@@ -176,3 +176,14 @@ Type: boolean
 _Description: Should AlternC remove bind mailboxes ?
  If you accept all users e-mails will be deleted
 
+Template:alternc-slave/mergelog-key
+Type: string
+_Description: SSH key of the mergelog server:
+
+ The slave nodes can be configured to accept connexions from a central
+ server (the mergelog server) that will merge the apache logs from all
+ the slave servers.
+ .
+ To do this, the server needs to have an account created and a public
+ key. Enter the public key here and the account will be created. If
+ this field is left empty, no account will be created.