osbuilder: move code into tools directory

move all osbuilder files into `tools` directory to be able
to merge this into kata-containers repo.

Signed-off-by: Salvador Fuentes <salvador.fuentes@intel.com>

tools/osbuilder/rootfs-builder/clearlinux/Dockerfile.in

@@ -0,0 +1,43 @@
+#
+# Copyright (c) 2018 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+From docker.io/fedora:30
+
+@SET_PROXY@
+
+RUN dnf -y update && dnf install -y \
+    autoconf \
+    automake \
+    binutils \
+    chrony \
+    cmake \
+    coreutils \
+    curl \
+    curl \
+    gcc \
+    gcc-c++ \
+    git \
+    glibc-common \
+    glibc-devel \
+    glibc-headers \
+    glibc-static \
+    glibc-utils \
+    libseccomp \
+    libseccomp-devel \
+    libstdc++-devel \
+    libstdc++-static \
+    m4 \
+    make \
+    pkgconfig \
+    sed \
+    systemd \
+    tar \
+    vim \
+    which
+
+# This will install the proper golang to build Kata components
+@INSTALL_MUSL@
+@INSTALL_GO@
+@INSTALL_RUST@

tools/osbuilder/rootfs-builder/clearlinux/config.sh

@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2018 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+OS_NAME="Clear"
+REPO_NAME="clear"
+
+OS_VERSION=${OS_VERSION:-latest}
+
+clr_url="https://download.clearlinux.org"
+
+# resolve version
+[ "${OS_VERSION}" = "latest" ] && OS_VERSION=$(curl -sL "${clr_url}/latest")
+
+BASE_URL="${clr_url}/releases/${OS_VERSION}/${REPO_NAME}/${ARCH}/os/"
+
+PACKAGES="libudev0-shim kmod-bin"
+
+#Optional packages:
+# systemd: An init system that will start kata-agent if kata-agent
+#          itself is not configured as init process.
+[ "$AGENT_INIT" == "no" ] && PACKAGES+=" systemd chrony iptables-bin util-linux-bin" || true
+
+# Init process must be one of {systemd,kata-agent}
+INIT_PROCESS=systemd
+# List of zero or more architectures to exclude from build,
+# as reported by  `uname -m`
+ARCH_EXCLUDE_LIST=( aarch64 ppc64le s390x )
+
+[ "$SECCOMP" = "yes" ] && PACKAGES+=" libseccomp" || true