Add fio bundle

src/.config

@@ -65,6 +65,12 @@ DROPBEAR_SOURCE_URL=http://matt.ucc.asn.au/dropbear/releases/dropbear-2017.75.ta
 #
 FELIX_SOURCE_URL=http://archive.apache.org/dist/felix/org.apache.felix.main.distribution-5.6.8.tar.gz
 
+# You can find the latest fio source bundles here:
+#
+#   https://github.com/axboe/fio/releases
+#
+FIO_SOURCE_URL=https://github.com/axboe/fio/archive/fio-3.2.tar.gz
+
 # You need to manually download Oracle's JRE or JDK and set the property with
 # the absolute path to the downloaded archive. Example:
 #
@@ -221,6 +227,7 @@ COPY_SOURCE_ISO=true
 # dhcp       - DHCP and DNS functionality.
 # dropbear   - SSH server and client.
 # felix      - Apache Felix OSGi framework.
+# fio        - I/O load generator.
 # java       - installs Oracle's JRE or JDK. Manual preparations are required.
 # kbd        - keyboard utilities
 # links      - text browser for the web.

src/README

@@ -45,6 +45,10 @@ Currently available overlay bundles:
 
                This overlay bundle requires JRE or JDK.
 
+* fio        - I/O load generator that can simulate a wide variety of workloads
+               on RAM or disks.  fio is essential for troubleshooting data
+               bottlenecks.
+
 * JRE / JDK  - Oracle's JRE or JDK. Requires ~366MB additional space for JDK.
                This overlay bundle requires some manual preparation steps. Refer
                to the "JAVA_ARCHIVE" property in the ".config" file for more

src/minimal_overlay/bundles/fio/01_get.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+# Grab everything after the '=' character.
+DOWNLOAD_URL=$(grep -i FIO_SOURCE_URL $MAIN_SRC_DIR/.config | cut -f2 -d'=')
+
+# Grab everything after the last '/' character.
+ARCHIVE_FILE=${DOWNLOAD_URL##*/}
+
+# Read the 'USE_LOCAL_SOURCE' property from '.config'
+USE_LOCAL_SOURCE="$(grep -i USE_LOCAL_SOURCE $MAIN_SRC_DIR/.config | cut -f2 -d'=')"
+
+if [ "$USE_LOCAL_SOURCE" = "true" -a ! -f $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE  ] ; then
+  echo "Source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE is missing and will be downloaded."
+  USE_LOCAL_SOURCE="false"
+fi
+
+cd $MAIN_SRC_DIR/source/overlay
+
+if [ ! "$USE_LOCAL_SOURCE" = "true" ] ; then
+  # Downloading fio source bundle file. The '-c' option allows the download to resume.
+  echo "Downloading fio source bundle from $DOWNLOAD_URL"
+  wget -c $DOWNLOAD_URL
+else
+  echo "Using local fio source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE"
+fi
+
+# Delete folder with previously extracted fio.
+echo "Removing fio work area. This may take a while..."
+rm -rf $WORK_DIR/overlay/fio
+mkdir $WORK_DIR/overlay/fio
+
+# Extract fio to folder 'work/overlay/fio'.
+# Full path will be something like 'work/overlay/fio/fio-3.2'.
+tar -xvf $ARCHIVE_FILE -C $WORK_DIR/overlay/fio
+
+cd $SRC_DIR
+

src/minimal_overlay/bundles/fio/02_build.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+cd $WORK_DIR/overlay/fio
+
+DESTDIR="$PWD/fio_installed"
+
+# Change to the fio source directory which ls finds, e.g. 'fio-3.2'.
+cd $(ls -d fio-*)
+
+echo "Preparing fio work area. This may take a while..."
+make -j $NUM_JOBS clean
+
+rm -rf $DESTDIR
+
+echo "Configuring fio..."
+CFLAGS="$CFLAGS" ./configure \
+  --prefix=/usr
+
+echo "Building fio..."
+make -j $NUM_JOBS
+
+echo "Installing fio..."
+make -j $NUM_JOBS install DESTDIR=$DESTDIR
+
+echo "Reducing fio size..."
+strip -g $DESTDIR/usr/bin/*
+
+ROOTFS="$WORK_DIR/src/minimal_overlay/rootfs"
+
+cp -r $DESTDIR/* $ROOTFS
+
+echo "fio has been installed."
+
+cd $SRC_DIR

src/minimal_overlay/bundles/fio/bundle.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+SRC_DIR=$(pwd)
+
+./01_get.sh
+./02_build.sh
+
+cd $SRC_DIR
+