fickit: add helper script to simplify nsenter

configs/nsenter_iptables.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+if [ -d /containers/onboot/004-admin-ip-setup ]; then
+    LOWER=/containers/onboot/004-admin-ip-setup
+elif [ -d /containers/onboot/004-nginx-ip-setup ]; then
+    LOWER=/containers/onboot/004-nginx-ip-setup
+else
+    nsenter -t 1 -a "$0" $@
+    exit $?
+fi
+
+mount -t tmpfs none $LOWER/run
+
+chroot $LOWER iptables $@
+EXIT=$?
+
+umount $LOWER/run
+
+exit ${EXIT}

configs/nsenter_mysql.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+nsenter -t $(pgrep mysql | head -1) -a mysql $@

configs/nsenter_process.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+PROC="$1"
+shift
+
+nsenter -t $(pgrep "$PROC" | head -1) $@
+exit $?