clear-containers: Add script to launch base OS and kernel

This commit adds the script qemu.sh that will be used in a
docker container (created with Dockerfile).

This script will crate qemu instance to lauch a Clear Container
base OS with a kernel generated with moby.

Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>

projects/clear-containers/README.md

@@ -70,6 +70,17 @@ following command:
 ./bin/moby build ./projects/clear-containers/clear-containers.yml
 ```
 
+3. Test kernel
+
+The Makefile target `qemu-lite` from `projects/clear-containers/tools`
+will launch the Clear Containers base OS and the 
+with kernel built with moby. Use the `root` user to access to the test system,
+it will ask to setup a password.
+
+```
+cd projects/clear-containers/tools
+make qemu-lite
+```
 
 The file `clear-containers-bzImage`  is not a bzImage\*. The file
 is a vmlinux image, see TODO. The [cc-oci-runtime] project can be

projects/clear-containers/tools/Dockerfile

@@ -0,0 +1,10 @@
+FROM fedora:25
+
+RUN dnf install -y 'dnf-command(config-manager)'
+RUN dnf config-manager --add-repo \
+	http://download.opensuse.org/repositories/home:clearlinux:preview:clear-containers-2.1/Fedora\_25/home:clearlinux:preview:clear-containers-2.1.repo
+
+RUN dnf install -y  qemu-lite clear-containers-image linux-container
+COPY qemu.sh /bin/qemu.sh
+WORKDIR /root
+ENTRYPOINT ["qemu.sh"]

projects/clear-containers/tools/Makefile

@@ -0,0 +1,35 @@
+MKFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
+MKFILE_DIR := $(dir $(MKFILE_PATH))
+ifdef http_proxy
+	BUILD_PROXY = --build-arg http_proxy=$(http_proxy)
+	RUN_PROXY = --env http_proxy=$(http_proxy)
+endif
+
+ifdef https_proxy
+	BUILD_PROXY += --build-arg https_proxy=$(https_proxy)
+	RUN_PROXY += --env https_proxy=$(https_proxy)
+endif
+
+CMDLINE_FILE=clear-containers-cmdline
+KERNEL_FILE=clear-containers-bzImage
+
+IMAGE=qemu-lite
+
+docker_image: Dockerfile
+	docker build $(BUILD_PROXY) -t clearcontainers/$(IMAGE) .
+
+qemu-lite: docker_image $(KERNEL_FILE) $(CMDLINE_FILE)
+	docker run  --privileged --rm -ti \
+		-v $$(pwd)/$(CMDLINE_FILE):/root/clear-containers-cmdline \
+		-v $$(pwd)/$(KERNEL_FILE):/root/clear-containers-vmlinux \
+		clearcontainers/$(IMAGE) \
+		bash
+
+$(KERNEL_FILE):
+	$(MKFILE_DIR)/../../../bin/moby build $(MKFILE_DIR)/../clear-containers.yml
+
+push: docker_image
+	docker push clearcontainers/$(IMAGE)
+
+clean:
+	rm -rf *-bzImage *-cmdline *.img

projects/clear-containers/tools/qemu.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+set -e
+
+function die {
+	echo >&2 "$@"
+	exit 1
+}
+
+img=/usr/share/clear-containers/clear-containers.img
+img=$(readlink -f "$img")
+img_size=$(du -b "${img}" |  awk '{print $1}')
+
+kernel="$(pwd)/clear-containers-vmlinux"
+kernel_cmdline_file="$(pwd)/clear-containers-cmdline"
+[ -f "${img}" ] || die "Image s required"
+[ -f "${kernel}" ] || die "Kernel is required"
+[ -f ${kernel_cmdline_file} ] || \
+	die "Kernel cmdline file is required"
+
+kernel_cmdline=$(cat "$kernel_cmdline_file")
+
+cmd="/usr/bin/qemu-lite-system-x86_64"
+cmd="$cmd -machine pc-lite,accel=kvm,kernel_irqchip,nvdimm"
+cmd="$cmd -device nvdimm,memdev=mem0,id=nv0"
+#image
+cmd="$cmd -object memory-backend-file,id=mem0,mem-path=${img},size=${img_size}"
+#memory
+cmd="$cmd -m 2G,slots=2,maxmem=3G"
+#kernel
+cmd="$cmd -kernel ${kernel}"
+cmd="$cmd -append '${kernel_cmdline}'"
+#cpu
+cmd="$cmd -smp 2,sockets=1,cores=2,threads=1"
+cmd="$cmd -cpu host"
+#clock
+cmd="$cmd -rtc base=utc,driftfix=slew"
+cmd="$cmd -no-user-config"
+cmd="$cmd -nodefaults"
+cmd="$cmd -global"
+cmd="$cmd kvm-pit.lost_tick_policy=discard"
+#console
+cmd="$cmd -device virtio-serial-pci,id=virtio-serial0"
+cmd="$cmd -chardev stdio,id=charconsole0,signal=off"
+cmd="$cmd -device virtconsole,chardev=charconsole0,id=console0"
+cmd="$cmd -nographic"
+cmd="$cmd -vga none"
+
+eval "$cmd"