* first draft of scripts for gitian host creation

10 years ago · 51cd62186d
parent 29bacde903
commit 51cd62186d
4 changed files with 620 additions and 0 deletions
--- a/docker/gitian-host/Dockerfile
+++ b/docker/gitian-host/Dockerfile
@ -0,0 +1,69 @@
+## gitian-host
+##
+## VERSION 0.1.0
+##
+## gitian host privileged container
+## see also https://github.com/gdm85/tenku/tree/master/docker/gitian-builder-host.md
+##
+#
+
+## this image must be debootstrapped with build-wheezy.sh
+FROM wheezy
+
+MAINTAINER Giuseppe Mazzotta "gdm85@users.noreply.github.com"
+
+ENV     TERM xterm
+ENV     DEBIAN_FRONTEND noninteractive
+
+## can be customized
+ADD etc/timezone /etc/timezone
+RUN dpkg-reconfigure -f noninteractive tzdata
+
+## first line of packages is core, second necessary for gitian builds
+RUN echo "deb http://http.debian.net/debian wheezy main contrib non-free" > /etc/apt/sources.list.d/non-free.list
+RUN apt-get update && apt-get install -y htop tmux less locales openssh-server \
+						iptables ca-certificates sudo bridge-utils git python-cheetah qemu-utils parted kpartx ruby apt-cacher-ng
+
+RUN apt-get install -y lxc
+
+## can be customized
+ADD etc/locale.gen /etc/locale.gen
+RUN dpkg-reconfigure -f noninteractive locales
+
+## disable password logins, reverse DNS lookups & privilege separation (due to chroot issues on latest docker)
+RUN sed -i -e 's/^#PasswordAuthentication yes/PasswordAuthentication no/' -e 's/^UsePrivilegeSeparation.*$/UsePrivilegeSeparation no/' /etc/ssh/sshd_config && echo 'UseDNS no' >> /etc/ssh/sshd_config
+
+EXPOSE 22
+
+# the version of lxc-start in Debian Wheezy needs to run as root, so make sure
+# that the build script can exectute it without providing a password
+RUN echo "%sudo ALL=NOPASSWD: /usr/bin/lxc-start" > /etc/sudoers.d/gitian-lxc
+RUN echo 'debian ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/debian-sudo
+
+RUN useradd -m -s /bin/bash debian && adduser debian sudo
+
+## provide authorized keys to allow connections inside host
+ADD authorized_keys /home/debian/.ssh/authorized_keys
+RUN chmod -R go-rwx /home/debian/.ssh
+
+WORKDIR /home/debian
+
+## download in clear HTTP & check md5 right afterwards
+RUN wget http://archive.ubuntu.com/ubuntu/pool/universe/v/vm-builder/vm-builder_0.12.4+bzr489.orig.tar.gz && echo "ec12e0070a007989561bfee5862c89a32c301992dd2771c4d5078ef1b3014f03  vm-build$
+RUN tar -zxvf vm-builder_0.12.4+bzr489.orig.tar.gz && cd vm-builder-0.12.4+bzr489 && python setup.py install
+
+## these must always be loaded when you login as 'debian' user
+RUN echo 'export USE_LXC=1' >> .bash_profile
+RUN echo 'export GITIAN_HOST_IP=10.0.3.2' >> .bash_profile
+RUN echo 'export LXC_GUEST_IP=10.0.3.5' >> .bash_profile
+
+RUN git clone https://github.com/devrandom/gitian-builder.git --depth=1
+RUN chown -R debian.debian . && chown -R apt-cacher-ng.apt-cacher-ng /var/cache/apt-cacher-ng/
+
+## optional: run this image with volumes for pre-downloaded inputs and apt-cacher-ng cache
+
+## all necessary setup instructions (SSH, LXC)
+ADD setup.sh /usr/local/bin/setup.sh
+
+## on run failure, check logs to see if setup failed. on success connect via SSH
+CMD /usr/local/bin/setup.sh && /etc/init.d/apt-cacher-ng start && /usr/sbin/sshd -D
--- a/docker/gitian-host/etc/locale.gen
+++ b/docker/gitian-host/etc/locale.gen
@ -0,0 +1,446 @@
+# This file lists locales that you wish to have built. You can find a list
+# of valid supported locales at /usr/share/i18n/SUPPORTED, and you can add
+# user defined locales to /usr/local/share/i18n/SUPPORTED. If you change
+# this file, you need to rerun locale-gen.
+
+
+# aa_DJ ISO-8859-1
+# aa_DJ.UTF-8 UTF-8
+# aa_ER UTF-8
+# aa_ER@saaho UTF-8
+# aa_ET UTF-8
+# af_ZA ISO-8859-1
+# af_ZA.UTF-8 UTF-8
+# am_ET UTF-8
+# an_ES ISO-8859-15
+# an_ES.UTF-8 UTF-8
+# ar_AE ISO-8859-6
+# ar_AE.UTF-8 UTF-8
+# ar_BH ISO-8859-6
+# ar_BH.UTF-8 UTF-8
+# ar_DZ ISO-8859-6
+# ar_DZ.UTF-8 UTF-8
+# ar_EG ISO-8859-6
+# ar_EG.UTF-8 UTF-8
+# ar_IN UTF-8
+# ar_IQ ISO-8859-6
+# ar_IQ.UTF-8 UTF-8
+# ar_JO ISO-8859-6
+# ar_JO.UTF-8 UTF-8
+# ar_KW ISO-8859-6
+# ar_KW.UTF-8 UTF-8
+# ar_LB ISO-8859-6
+# ar_LB.UTF-8 UTF-8
+# ar_LY ISO-8859-6
+# ar_LY.UTF-8 UTF-8
+# ar_MA ISO-8859-6
+# ar_MA.UTF-8 UTF-8
+# ar_OM ISO-8859-6
+# ar_OM.UTF-8 UTF-8
+# ar_QA ISO-8859-6
+# ar_QA.UTF-8 UTF-8
+# ar_SA ISO-8859-6
+# ar_SA.UTF-8 UTF-8
+# ar_SD ISO-8859-6
+# ar_SD.UTF-8 UTF-8
+# ar_SY ISO-8859-6
+# ar_SY.UTF-8 UTF-8
+# ar_TN ISO-8859-6
+# ar_TN.UTF-8 UTF-8
+# ar_YE ISO-8859-6
+# ar_YE.UTF-8 UTF-8
+# as_IN.UTF-8 UTF-8
+# ast_ES ISO-8859-15
+# ast_ES.UTF-8 UTF-8
+# az_AZ.UTF-8 UTF-8
+# be_BY CP1251
+# be_BY.UTF-8 UTF-8
+# be_BY@latin UTF-8
+# bem_ZM UTF-8
+# ber_DZ UTF-8
+# ber_MA UTF-8
+# bg_BG CP1251
+# bg_BG.UTF-8 UTF-8
+# bn_BD UTF-8
+# bn_IN UTF-8
+# bo_CN UTF-8
+# bo_IN UTF-8
+# br_FR ISO-8859-1
+# br_FR.UTF-8 UTF-8
+# br_FR@euro ISO-8859-15
+# bs_BA ISO-8859-2
+# bs_BA.UTF-8 UTF-8
+# byn_ER UTF-8
+# ca_AD ISO-8859-15
+# ca_AD.UTF-8 UTF-8
+# ca_ES ISO-8859-1
+# ca_ES.UTF-8 UTF-8
+# ca_ES.UTF-8@valencia UTF-8
+# ca_ES@euro ISO-8859-15
+# ca_ES@valencia ISO-8859-15
+# ca_FR ISO-8859-15
+# ca_FR.UTF-8 UTF-8
+# ca_IT ISO-8859-15
+# ca_IT.UTF-8 UTF-8
+# crh_UA UTF-8
+# cs_CZ ISO-8859-2
+# cs_CZ.UTF-8 UTF-8
+# csb_PL UTF-8
+# cv_RU UTF-8
+# cy_GB ISO-8859-14
+# cy_GB.UTF-8 UTF-8
+# da_DK ISO-8859-1
+# da_DK.UTF-8 UTF-8
+# de_AT ISO-8859-1
+# de_AT.UTF-8 UTF-8
+# de_AT@euro ISO-8859-15
+# de_BE ISO-8859-1
+# de_BE.UTF-8 UTF-8
+# de_BE@euro ISO-8859-15
+# de_CH ISO-8859-1
+# de_CH.UTF-8 UTF-8
+# de_DE ISO-8859-1
+# de_DE.UTF-8 UTF-8
+# de_DE@euro ISO-8859-15
+# de_LI.UTF-8 UTF-8
+# de_LU ISO-8859-1
+# de_LU.UTF-8 UTF-8
+# de_LU@euro ISO-8859-15
+# dv_MV UTF-8
+# dz_BT UTF-8
+# el_CY ISO-8859-7
+# el_CY.UTF-8 UTF-8
+# el_GR ISO-8859-7
+# el_GR.UTF-8 UTF-8
+# en_AG UTF-8
+# en_AU ISO-8859-1
+# en_AU.UTF-8 UTF-8
+# en_BW ISO-8859-1
+# en_BW.UTF-8 UTF-8
+# en_CA ISO-8859-1
+# en_CA.UTF-8 UTF-8
+# en_DK ISO-8859-1
+# en_DK.ISO-8859-15 ISO-8859-15
+# en_DK.UTF-8 UTF-8
+# en_GB ISO-8859-1
+# en_GB.ISO-8859-15 ISO-8859-15
+en_GB.UTF-8 UTF-8
+# en_HK ISO-8859-1
+# en_HK.UTF-8 UTF-8
+# en_IE ISO-8859-1
+# en_IE.UTF-8 UTF-8
+# en_IE@euro ISO-8859-15
+# en_IN UTF-8
+# en_NG UTF-8
+# en_NZ ISO-8859-1
+# en_NZ.UTF-8 UTF-8
+# en_PH ISO-8859-1
+# en_PH.UTF-8 UTF-8
+# en_SG ISO-8859-1
+# en_SG.UTF-8 UTF-8
+# en_US ISO-8859-1
+# en_US.ISO-8859-15 ISO-8859-15
+en_US.UTF-8 UTF-8
+# en_ZA ISO-8859-1
+# en_ZA.UTF-8 UTF-8
+# en_ZM UTF-8
+# en_ZW ISO-8859-1
+# en_ZW.UTF-8 UTF-8
+# eo ISO-8859-3
+# eo.UTF-8 UTF-8
+# es_AR ISO-8859-1
+# es_AR.UTF-8 UTF-8
+# es_BO ISO-8859-1
+# es_BO.UTF-8 UTF-8
+# es_CL ISO-8859-1
+# es_CL.UTF-8 UTF-8
+# es_CO ISO-8859-1
+# es_CO.UTF-8 UTF-8
+# es_CR ISO-8859-1
+# es_CR.UTF-8 UTF-8
+# es_DO ISO-8859-1
+# es_DO.UTF-8 UTF-8
+# es_EC ISO-8859-1
+# es_EC.UTF-8 UTF-8
+# es_ES ISO-8859-1
+# es_ES.UTF-8 UTF-8
+# es_ES@euro ISO-8859-15
+# es_GT ISO-8859-1
+# es_GT.UTF-8 UTF-8
+# es_HN ISO-8859-1
+# es_HN.UTF-8 UTF-8
+# es_MX ISO-8859-1
+# es_MX.UTF-8 UTF-8
+# es_NI ISO-8859-1
+# es_NI.UTF-8 UTF-8
+# es_PA ISO-8859-1
+# es_PA.UTF-8 UTF-8
+# es_PE ISO-8859-1
+# es_PE.UTF-8 UTF-8
+# es_PR ISO-8859-1
+# es_PR.UTF-8 UTF-8
+# es_PY ISO-8859-1
+# es_PY.UTF-8 UTF-8
+# es_SV ISO-8859-1
+# es_SV.UTF-8 UTF-8
+# es_US ISO-8859-1
+# es_US.UTF-8 UTF-8
+# es_UY ISO-8859-1
+# es_UY.UTF-8 UTF-8
+# es_VE ISO-8859-1
+# es_VE.UTF-8 UTF-8
+# et_EE ISO-8859-1
+# et_EE.ISO-8859-15 ISO-8859-15
+# et_EE.UTF-8 UTF-8
+# eu_ES ISO-8859-1
+# eu_ES.UTF-8 UTF-8
+# eu_ES@euro ISO-8859-15
+# eu_FR ISO-8859-1
+# eu_FR.UTF-8 UTF-8
+# eu_FR@euro ISO-8859-15
+# fa_IR UTF-8
+# ff_SN UTF-8
+# fi_FI ISO-8859-1
+# fi_FI.UTF-8 UTF-8
+# fi_FI@euro ISO-8859-15
+# fil_PH UTF-8
+# fo_FO ISO-8859-1
+# fo_FO.UTF-8 UTF-8
+# fr_BE ISO-8859-1
+# fr_BE.UTF-8 UTF-8
+# fr_BE@euro ISO-8859-15
+# fr_CA ISO-8859-1
+# fr_CA.UTF-8 UTF-8
+# fr_CH ISO-8859-1
+# fr_CH.UTF-8 UTF-8
+# fr_FR ISO-8859-1
+# fr_FR.UTF-8 UTF-8
+# fr_FR@euro ISO-8859-15
+# fr_LU ISO-8859-1
+# fr_LU.UTF-8 UTF-8
+# fr_LU@euro ISO-8859-15
+# fur_IT UTF-8
+# fy_DE UTF-8
+# fy_NL UTF-8
+# ga_IE ISO-8859-1
+# ga_IE.UTF-8 UTF-8
+# ga_IE@euro ISO-8859-15
+# gd_GB ISO-8859-15
+# gd_GB.UTF-8 UTF-8
+# gez_ER UTF-8
+# gez_ER@abegede UTF-8
+# gez_ET UTF-8
+# gez_ET@abegede UTF-8
+# gl_ES ISO-8859-1
+# gl_ES.UTF-8 UTF-8
+# gl_ES@euro ISO-8859-15
+# gu_IN UTF-8
+# gv_GB ISO-8859-1
+# gv_GB.UTF-8 UTF-8
+# ha_NG UTF-8
+# he_IL ISO-8859-8
+# he_IL.UTF-8 UTF-8
+# hi_IN UTF-8
+# hne_IN UTF-8
+# hr_HR ISO-8859-2
+# hr_HR.UTF-8 UTF-8
+# hsb_DE ISO-8859-2
+# hsb_DE.UTF-8 UTF-8
+# ht_HT UTF-8
+# hu_HU ISO-8859-2
+# hu_HU.UTF-8 UTF-8
+# hy_AM UTF-8
+# hy_AM.ARMSCII-8 ARMSCII-8
+# ia UTF-8
+# id_ID ISO-8859-1
+# id_ID.UTF-8 UTF-8
+# ig_NG UTF-8
+# ik_CA UTF-8
+# is_IS ISO-8859-1
+# is_IS.UTF-8 UTF-8
+# it_CH ISO-8859-1
+# it_CH.UTF-8 UTF-8
+# it_IT ISO-8859-1
+# it_IT.UTF-8 UTF-8
+# it_IT@euro ISO-8859-15
+# iu_CA UTF-8
+# iw_IL ISO-8859-8
+# iw_IL.UTF-8 UTF-8
+# ja_JP.EUC-JP EUC-JP
+# ja_JP.UTF-8 UTF-8
+# ka_GE GEORGIAN-PS
+# ka_GE.UTF-8 UTF-8
+# kk_KZ PT154
+# kk_KZ RK1048
+# kk_KZ.UTF-8 UTF-8
+# kl_GL ISO-8859-1
+# kl_GL.UTF-8 UTF-8
+# km_KH UTF-8
+# kn_IN UTF-8
+# ko_KR.EUC-KR EUC-KR
+# ko_KR.UTF-8 UTF-8
+# kok_IN UTF-8
+# ks_IN UTF-8
+# ks_IN@devanagari UTF-8
+# ku_TR ISO-8859-9
+# ku_TR.UTF-8 UTF-8
+# kw_GB ISO-8859-1
+# kw_GB.UTF-8 UTF-8
+# ky_KG UTF-8
+# lg_UG ISO-8859-10
+# lg_UG.UTF-8 UTF-8
+# li_BE UTF-8
+# li_NL UTF-8
+# lo_LA UTF-8
+# lt_LT ISO-8859-13
+# lt_LT.UTF-8 UTF-8
+# lv_LV ISO-8859-13
+# lv_LV.UTF-8 UTF-8
+# mai_IN UTF-8
+# mg_MG ISO-8859-15
+# mg_MG.UTF-8 UTF-8
+# mi_NZ ISO-8859-13
+# mi_NZ.UTF-8 UTF-8
+# mk_MK ISO-8859-5
+# mk_MK.UTF-8 UTF-8
+# ml_IN UTF-8
+# mn_MN UTF-8
+# mr_IN UTF-8
+# ms_MY ISO-8859-1
+# ms_MY.UTF-8 UTF-8
+# mt_MT ISO-8859-3
+# mt_MT.UTF-8 UTF-8
+# my_MM UTF-8
+# nan_TW@latin UTF-8
+# nb_NO ISO-8859-1
+# nb_NO.UTF-8 UTF-8
+# nds_DE UTF-8
+# nds_NL UTF-8
+# ne_NP UTF-8
+# nl_AW UTF-8
+# nl_BE ISO-8859-1
+# nl_BE.UTF-8 UTF-8
+# nl_BE@euro ISO-8859-15
+# nl_NL ISO-8859-1
+nl_NL.UTF-8 UTF-8
+# nl_NL@euro ISO-8859-15
+# nn_NO ISO-8859-1
+# nn_NO.UTF-8 UTF-8
+# nr_ZA UTF-8
+# nso_ZA UTF-8
+# oc_FR ISO-8859-1
+# oc_FR.UTF-8 UTF-8
+# om_ET UTF-8
+# om_KE ISO-8859-1
+# om_KE.UTF-8 UTF-8
+# or_IN UTF-8
+# os_RU UTF-8
+# pa_IN UTF-8
+# pa_PK UTF-8
+# pap_AN UTF-8
+# pl_PL ISO-8859-2
+# pl_PL.UTF-8 UTF-8
+# ps_AF UTF-8
+# pt_BR ISO-8859-1
+# pt_BR.UTF-8 UTF-8
+# pt_PT ISO-8859-1
+# pt_PT.UTF-8 UTF-8
+# pt_PT@euro ISO-8859-15
+# ro_RO ISO-8859-2
+# ro_RO.UTF-8 UTF-8
+# ru_RU ISO-8859-5
+# ru_RU.CP1251 CP1251
+# ru_RU.KOI8-R KOI8-R
+# ru_RU.UTF-8 UTF-8
+# ru_UA KOI8-U
+# ru_UA.UTF-8 UTF-8
+# rw_RW UTF-8
+# sa_IN UTF-8
+# sc_IT UTF-8
+# sd_IN UTF-8
+# sd_IN@devanagari UTF-8
+# se_NO UTF-8
+# shs_CA UTF-8
+# si_LK UTF-8
+# sid_ET UTF-8
+# sk_SK ISO-8859-2
+# sk_SK.UTF-8 UTF-8
+# sl_SI ISO-8859-2
+# sl_SI.UTF-8 UTF-8
+# so_DJ ISO-8859-1
+# so_DJ.UTF-8 UTF-8
+# so_ET UTF-8
+# so_KE ISO-8859-1
+# so_KE.UTF-8 UTF-8
+# so_SO ISO-8859-1
+# so_SO.UTF-8 UTF-8
+# sq_AL ISO-8859-1
+# sq_AL.UTF-8 UTF-8
+# sq_MK UTF-8
+# sr_ME UTF-8
+# sr_RS UTF-8
+# sr_RS@latin UTF-8
+# ss_ZA UTF-8
+# st_ZA ISO-8859-1
+# st_ZA.UTF-8 UTF-8
+# sv_FI ISO-8859-1
+# sv_FI.UTF-8 UTF-8
+# sv_FI@euro ISO-8859-15
+# sv_SE ISO-8859-1
+# sv_SE.ISO-8859-15 ISO-8859-15
+# sv_SE.UTF-8 UTF-8
+# sw_KE UTF-8
+# sw_TZ UTF-8
+# ta_IN UTF-8
+# te_IN UTF-8
+# tg_TJ KOI8-T
+# tg_TJ.UTF-8 UTF-8
+# th_TH TIS-620
+# th_TH.UTF-8 UTF-8
+# ti_ER UTF-8
+# ti_ET UTF-8
+# tig_ER UTF-8
+# tk_TM UTF-8
+# tl_PH ISO-8859-1
+# tl_PH.UTF-8 UTF-8
+# tn_ZA UTF-8
+# tr_CY ISO-8859-9
+# tr_CY.UTF-8 UTF-8
+# tr_TR ISO-8859-9
+# tr_TR.UTF-8 UTF-8
+# ts_ZA UTF-8
+# tt_RU.UTF-8 UTF-8
+# tt_RU.UTF-8@iqtelif UTF-8
+# ug_CN UTF-8
+# uk_UA KOI8-U
+# uk_UA.UTF-8 UTF-8
+# ur_PK UTF-8
+# uz_UZ ISO-8859-1
+# uz_UZ.UTF-8 UTF-8
+# uz_UZ@cyrillic UTF-8
+# ve_ZA UTF-8
+# vi_VN UTF-8
+# vi_VN.TCVN TCVN5712-1
+# wa_BE ISO-8859-1
+# wa_BE.UTF-8 UTF-8
+# wa_BE@euro ISO-8859-15
+# wo_SN UTF-8
+# xh_ZA ISO-8859-1
+# xh_ZA.UTF-8 UTF-8
+# yi_US CP1255
+# yi_US.UTF-8 UTF-8
+# yo_NG UTF-8
+# zh_CN GB2312
+# zh_CN.GB18030 GB18030
+# zh_CN.GBK GBK
+# zh_CN.UTF-8 UTF-8
+# zh_HK BIG5-HKSCS
+# zh_HK.UTF-8 UTF-8
+# zh_SG GB2312
+# zh_SG.GBK GBK
+# zh_SG.UTF-8 UTF-8
+# zh_TW BIG5
+# zh_TW.EUC-TW EUC-TW
+# zh_TW.UTF-8 UTF-8
+# zu_ZA ISO-8859-1
+# zu_ZA.UTF-8 UTF-8
--- a/docker/gitian-host/etc/timezone
+++ b/docker/gitian-host/etc/timezone
@ -0,0 +1 @@
+Europe/Amsterdam
--- a/docker/gitian-host/setup.sh
+++ b/docker/gitian-host/setup.sh
@ -0,0 +1,104 @@
+#!/bin/bash
+## @author gdm85
+## this script is an adapted version of jpetazzo's original:
+## https://github.com/jpetazzo/dind/blob/master/wrapdocker
+## (thus most of the comment are his voice)
+#
+
+set -e
+
+## regenerate host keys
+/bin/rm -v /etc/ssh/ssh_host_*
+dpkg-reconfigure openssh-server
+
+# First, make sure that cgroups are mounted correctly.
+CGROUP=/sys/fs/cgroup
+
+[ -d $CGROUP ] ||
+	mkdir $CGROUP
+
+mountpoint -q $CGROUP ||
+	mount -n -t tmpfs -o uid=0,gid=0,mode=0755 cgroup $CGROUP || {
+		echo "Could not make a tmpfs mount. Did you use -privileged?"
+		exit 1
+	}
+
+if [ -d /sys/kernel/security ] && ! mountpoint -q /sys/kernel/security
+then
+    mount -t securityfs none /sys/kernel/security || {
+        echo "Could not mount /sys/kernel/security."
+        echo "AppArmor detection and -privileged mode might break."
+        exit 2
+    }
+fi
+
+# Mount the cgroup hierarchies exactly as they are in the parent system.
+for SUBSYS in $(cut -d: -f2 /proc/1/cgroup)
+do
+        [ -d $CGROUP/$SUBSYS ] || mkdir $CGROUP/$SUBSYS
+        mountpoint -q $CGROUP/$SUBSYS || 
+                mount -n -t cgroup -o $SUBSYS cgroup $CGROUP/$SUBSYS
+
+        # The two following sections address a bug which manifests itself
+        # by a cryptic "lxc-start: no ns_cgroup option specified" when
+        # trying to start containers withina container.
+        # The bug seems to appear when the cgroup hierarchies are not
+        # mounted on the exact same directories in the host, and in the
+        # container.
+
+        # Named, control-less cgroups are mounted with "-o name=foo"
+        # (and appear as such under /proc/<pid>/cgroup) but are usually
+        # mounted on a directory named "foo" (without the "name=" prefix).
+        # Systemd and OpenRC (and possibly others) both create such a
+        # cgroup. To avoid the aforementioned bug, we symlink "foo" to
+        # "name=foo". This shouldn't have any adverse effect.
+        echo $SUBSYS | grep -q ^name= && {
+                NAME=$(echo $SUBSYS | sed s/^name=//)
+                ln -s $SUBSYS $CGROUP/$NAME
+        }
+
+        # Likewise, on at least one system, it has been reported that
+        # systemd would mount the CPU and CPU accounting controllers
+        # (respectively "cpu" and "cpuacct") with "-o cpuacct,cpu"
+        # but on a directory called "cpu,cpuacct" (note the inversion
+        # in the order of the groups). This tries to work around it.
+        [ $SUBSYS = cpuacct,cpu ] && ln -s $SUBSYS $CGROUP/cpu,cpuacct
+done
+
+# Note: as I write those lines, the LXC userland tools cannot setup
+# a "sub-container" properly if the "devices" cgroup is not in its
+# own hierarchy. Let's detect this and issue a warning.
+grep -q :devices: /proc/1/cgroup ||
+	echo "WARNING: the 'devices' cgroup should be in its own hierarchy."
+grep -qw devices /proc/1/cgroup ||
+	echo "WARNING: it looks like the 'devices' cgroup is not mounted."
+
+# Now, close extraneous file descriptors.
+pushd /proc/self/fd >/dev/null
+for FD in *
+do
+	case "$FD" in
+	# Keep stdin/stdout/stderr
+	[012])
+		;;
+	# Nuke everything else
+	*)
+		eval exec "$FD>&-"
+		;;
+	esac
+done
+popd >/dev/null
+
+source /home/debian/.bash_profile
+## at this point environment should be ready
+
+## bridge to be used by gitian LXC container
+brctl addbr br0 && \
+ifconfig br0 ${GITIAN_HOST_IP}/16 up || exit $?
+
+## temporary workaround until this bug is fixed: https://bugs.launchpad.net/ubuntu/+source/sysvinit/+bug/891045
+umount /dev/shm
+rmdir /dev/shm
+ln -s /run/shm /dev/shm
+
+echo "Gitian host configuration for LXC guests completed successfully"