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[Xen-devel] [stage1-xen PATCH v2 04/11] build/fedora: Add `run` and `components/*` scripts



From: Rajiv M Ranganath <rajiv.ranganath@xxxxxxxxxxx>

In order to build stage1-xen we require three components -

1. Xen
2. Qemu
3. Rkt

These components are built using scripts in `build/fedora/components/`
directory. These scripts have constants (for example `XEN_PREFIX`) that can
be used to customize the build either on the host or while building inside
a container.

`run` script makes use of scripts in `components/` directory to build
stage1-xen artifacts in a container.

Signed-off-by: Rajiv Ranganath <rajiv.ranganath@xxxxxxxxxxx>
---
 build/fedora/components/qemu |   52 +++++++++++++++++++++++++++++++++++++
 build/fedora/components/rkt  |   59 ++++++++++++++++++++++++++++++++++++++++++
 build/fedora/components/xen  |   47 +++++++++++++++++++++++++++++++++
 build/fedora/run             |   56 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 214 insertions(+)
 create mode 100755 build/fedora/components/qemu
 create mode 100755 build/fedora/components/rkt
 create mode 100755 build/fedora/components/xen
 create mode 100755 build/fedora/run

diff --git a/build/fedora/components/qemu b/build/fedora/components/qemu
new file mode 100755
index 0000000..06538d8
--- /dev/null
+++ b/build/fedora/components/qemu
@@ -0,0 +1,52 @@
+#!/usr/bin/python2
+
+import shlex
+import subprocess
+import sys
+import os
+
+# Modify this if you would like to install Qemu elsewhere on your filesystem or
+# a different version of Qemu
+QEMU_PREFIX = '/opt/qemu-2.10.0'
+# This can be a git tag or branch
+QEMU_BRANCH = 'v2.10.0'
+
+# This should correspond to your Xen install prefix
+XEN_PREFIX = '/opt/xen-4.9.0'
+
+
+# helper function to capture stdout from a long running process
+def subprocess_stdout(cmd, cwd, env):
+    p = subprocess.Popen(
+        shlex.split(cmd), cwd=cwd, env=env, stdout=subprocess.PIPE)
+    while p.poll() is None:
+        l = p.stdout.readline()
+        sys.stdout.write(l)
+    if p.returncode != 0:
+        sys.exit(1)
+
+
+env = os.environ.copy()
+
+# build and install qemu
+print "Cloning qemu..."
+cmd = "git clone --branch %(branch)s git://git.qemu.org/qemu.git" % {
+    'branch': QEMU_BRANCH
+}
+subprocess.check_output(shlex.split(cmd), cwd='/root')
+
+steps = [
+    "./configure --prefix=%(qemu_prefix)s --enable-xen 
--target-list=i386-softmmu --extra-cflags=\"-I%(xen_prefix)s/include\" 
--extra-ldflags=\"-L%(xen_prefix)s/lib -Wl,-rpath,%(xen_prefix)s/lib\" 
--disable-kvm --enable-virtfs --enable-linux-aio"
+    % {
+        'qemu_prefix': QEMU_PREFIX,
+        'xen_prefix': XEN_PREFIX
+    }, 'make', 'make install'
+]
+for cmd in steps:
+    cwd = '/root/qemu'
+    subprocess_stdout(cmd, cwd, env)
+
+cmd = "cp i386-softmmu/qemu-system-i386 
%(xen_prefix)s/lib/xen/bin/qemu-system-i386" % {
+    'xen_prefix': XEN_PREFIX
+}
+subprocess.check_output(shlex.split(cmd), cwd='/root/qemu')
diff --git a/build/fedora/components/rkt b/build/fedora/components/rkt
new file mode 100755
index 0000000..a8d6541
--- /dev/null
+++ b/build/fedora/components/rkt
@@ -0,0 +1,59 @@
+#!/usr/bin/python2
+
+import shlex
+import subprocess
+import sys
+import os
+
+# `rkt` is installed in the same prefix as `stage1-xen`. Modify this if you
+# would like to install rkt elsewhere on your filesystem.
+STAGE1_XEN_PREFIX = '/opt/stage1-xen'
+RKT_PREFIX = STAGE1_XEN_PREFIX
+# This can be a git tag or branch
+RKT_BRANCH = 'v1.28.1'
+
+# Adjust this according to what RKT_BRANCH generates (see configure.ac)
+RKT_BUILD_VER = 'rkt-1.28.1'
+
+
+# helper function to capture stdout from a long running process
+def subprocess_stdout(cmd, cwd, env):
+    p = subprocess.Popen(
+        shlex.split(cmd), cwd=cwd, env=env, stdout=subprocess.PIPE)
+    while p.poll() is None:
+        l = p.stdout.readline()
+        sys.stdout.write(l)
+    if p.returncode != 0:
+        sys.exi(1)
+
+
+env = os.environ.copy()
+
+# build rkt
+print "Cloning rkt..."
+cmd = "git clone --branch %(branch)s https://github.com/rkt/rkt.git"; % {
+    'branch': RKT_BRANCH
+}
+subprocess.check_output(shlex.split(cmd), cwd='/root')
+
+steps = [
+    './autogen.sh', './configure --disable-tpm --with-stage1-flavors=coreos',
+    'make'
+]
+for cmd in steps:
+    cwd = '/root/rkt'
+    subprocess_stdout(cmd, cwd, env)
+
+# install rkt build artifacts to RKT_PREFIX
+steps = [
+    "mkdir -p %(prefix)s/bin" % {
+        'prefix': RKT_PREFIX
+    },
+    "cp /root/rkt/build-%(build_ver)s/target/bin/rkt %(prefix)s/bin/rkt" % {
+        'build_ver': RKT_BUILD_VER,
+        'prefix': RKT_PREFIX
+    }
+]
+for cmd in steps:
+    cwd = '/root/rkt'
+    subprocess_stdout(cmd, cwd, env)
diff --git a/build/fedora/components/xen b/build/fedora/components/xen
new file mode 100755
index 0000000..45d11f2
--- /dev/null
+++ b/build/fedora/components/xen
@@ -0,0 +1,47 @@
+#!/usr/bin/python2
+
+import shlex
+import subprocess
+import sys
+import os
+
+# Modify this if you would like to install Xen elsewhere on your filesystem or
+# a different version of Xen
+XEN_PREFIX = '/opt/xen-4.9.0'
+# This can be a git tag or branch
+XEN_BRANCH = 'RELEASE-4.9.0'
+
+
+# helper function to capture stdout from a long running process
+def subprocess_stdout(cmd, cwd, env):
+    p = subprocess.Popen(
+        shlex.split(cmd), cwd=cwd, env=env, stdout=subprocess.PIPE)
+    while p.poll() is None:
+        l = p.stdout.readline()
+        sys.stdout.write(l)
+    if p.returncode != 0:
+        sys.exit(1)
+
+
+env = os.environ.copy()
+
+# build and install xen
+print "Cloning xen..."
+cmd = "git clone --branch %(branch)s git://xenbits.xen.org/xen.git" % {
+    'branch': XEN_BRANCH
+}
+subprocess.check_output(shlex.split(cmd), cwd='/root')
+
+steps = [
+    "./configure --prefix=%(prefix)s 
--with-system-qemu=%(prefix)s/lib/xen/bin/qemu-system-i386 --disable-stubdom 
--disable-qemu-traditional --disable-rombios --sysconfdir=%(prefix)s/etc 
--enable-rpath --disable-systemd"
+    % {
+        'prefix': XEN_PREFIX
+    }, 'make',
+    "make install BOOT_DIR=%(prefix)s/boot DEBUG_DIR=%(prefix)s/lib/debug 
EFI_DIR=%(prefix)s/boot/efi/EFI/xen"
+    % {
+        'prefix': XEN_PREFIX
+    }
+]
+for cmd in steps:
+    cwd = '/root/xen'
+    subprocess_stdout(cmd, cwd, env)
diff --git a/build/fedora/run b/build/fedora/run
new file mode 100755
index 0000000..dc2d201
--- /dev/null
+++ b/build/fedora/run
@@ -0,0 +1,56 @@
+#!/usr/bin/python2
+
+import shlex
+import subprocess
+import sys
+import os
+
+# This scripts calls out to `xen`, `qemu` and `rkt` scripts in the
+# `components/` directory within a container. It is expected that components
+# directory is present at the same directory level as run script.
+STAGE1_XEN_COMPONENTS = ['xen', 'qemu', 'rkt']
+
+
+# helper function to capture stdout from a long running process
+def subprocess_stdout(cmd, cwd, env):
+    p = subprocess.Popen(
+        shlex.split(cmd), cwd=cwd, env=env, stdout=subprocess.PIPE)
+    while p.poll() is None:
+        l = p.stdout.readline()
+        sys.stdout.write(l)
+    if p.returncode != 0:
+        sys.exit(1)
+
+
+env = os.environ.copy()
+
+dirname = os.path.dirname(os.path.realpath(__file__))
+steps = [os.path.join(dirname, 'components', x) for x in STAGE1_XEN_COMPONENTS]
+for cmd in steps:
+    cwd = '/root'
+    subprocess_stdout(cmd, cwd, env)
+
+# build stage1-xen
+env['GOPATH'] = '/root/gopath'
+cwd = '/root/gopath/src/github.com/rkt/stage1-xen'
+cmd = 'bash build.sh'
+subprocess_stdout(cmd, cwd, env)
+
+# install build artifacts to `/opt/stage1-xen/aci` and create a tarball
+steps = [
+    'mkdir -p /opt/stage1-xen/aci',
+    'cp /root/gopath/src/github.com/rkt/stage1-xen/stage1-xen.aci 
/opt/stage1-xen/aci/stage1-xen.aci',
+    'cp /root/gopath/src/github.com/rkt/stage1-xen/build/fedora/source_path.sh 
/opt/stage1-xen/bin/source_path.sh',
+    'cp -r 
/root/gopath/src/github.com/rkt/stage1-xen/build/fedora/xen-4.9.0-runit 
/opt/xen-4.9.0-runit'
+]
+for cmd in steps:
+    cwd = '/root'
+    subprocess_stdout(cmd, cwd, env)
+
+cwd = '/opt'
+cmd = 'tar zcvf /root/stage1-xen-build.tar.gz qemu-2.10.0/ stage1-xen/ 
xen-4.9.0/ xen-4.9.0-runit/'
+subprocess_stdout(cmd, cwd, env)
+
+cwd = '/root'
+cmd = 'mv /root/stage1-xen-build.tar.gz /tmp'
+subprocess_stdout(cmd, cwd, env)


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