Add element for building ramdisk with ironic-python-agent

This element creates kernel and ramdisk files based on Fedora,
example:
disk-image-create -a i386 -o test fedora ironic-agent disable-selinux

Change-Id: Ifa133d1680b81cb87d32a405aa7d7b40fe91f835

bin/disk-image-create

@@ -246,5 +246,12 @@ else
   # by this point.
   rm $TMP_IMAGE_PATH
 fi
+
+case "$IMAGE_ELEMENT" in
+  *ironic-agent*)
+    rm $IMAGE_NAME.$IMAGE_TYPE
+    ;;
+esac
+
 # All done!
 trap EXIT

elements/ironic-agent/README.md

@@ -0,0 +1,2 @@
+Build ramdisk with ironic-python-agent.
+Works only on Fedora, therefore fedora element is mandatory.

elements/ironic-agent/cleanup.d/99-ramdisk-create

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -eu
+set -o pipefail
+
+[ -n "$TARGET_ROOT" ]
+
+source $_LIB/img-functions
+
+WORKDIR=$(pwd)
+cd $TARGET_ROOT
+
+echo "#disabled" > ./tmp/fstab.new
+sudo mv ./tmp/fstab.new ./etc/fstab
+sudo ln -s ./sbin/init ./
+
+sudo find . -path ./sys -prune -o -path ./proc -prune -o -print | sudo cpio -o -H newc | gzip > $WORKDIR/$IMAGE_NAME.initramfs
+
+select_boot_kernel_initrd $TARGET_ROOT
+sudo cp $BOOTDIR/$KERNEL $WORKDIR/$IMAGE_NAME.vmlinuz

elements/ironic-agent/element-deps

@@ -0,0 +1 @@
+source-repositories

elements/ironic-agent/element-provides

@@ -0,0 +1 @@
+ironic-python-agent

elements/ironic-agent/install.d/60-ironic-agent-install

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -eu
+set -o pipefail
+
+install-packages python-dev python-pip qemu-utils parted hdparm util-linux genisoimage gcc
+
+pip install -r /tmp/ironic-python-agent/requirements.txt
+pip install /tmp/ironic-python-agent
+
+sudo echo $'[Unit]
+Description=Ironic Python Agent\n
+[Service]
+ExecStart=/usr/bin/ironic-python-agent
+Restart=always
+RestartSec=30s\n' > /usr/lib/systemd/system/ironic-python-agent.service
+
+sudo systemctl enable ironic-python-agent.service

elements/ironic-agent/post-install.d/80-ironic-agent

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -eu
+set -o pipefail
+
+install-packages -e python-dev git cloud-init
+rm -rf /tmp/ironic-python-agent
+
+sudo systemctl disable iptables.service
+
+#configs for additional interfaces
+SYSCONFIG_PATH=/etc/sysconfig/network-scripts
+for IFACE_NUM in 1 2
+do
+    sudo cp $SYSCONFIG_PATH/ifcfg-eth0 $SYSCONFIG_PATH/ifcfg-eth$IFACE_NUM
+    sudo sed -i "s/eth0/eth$IFACE_NUM/g" $SYSCONFIG_PATH/ifcfg-eth$IFACE_NUM
+done

elements/ironic-agent/source-repository-ironic-agent

@@ -0,0 +1 @@
+agent git /tmp/ironic-python-agent git://git.openstack.org/openstack/ironic-python-agent