Tilera - Revision history

Kir: /* Known issues */ + OS template cache (tile.tar.gz) is still very big

2011-05-04T11:08:21Z

‎Known issues: + OS template cache (tile.tar.gz) is still very big

Kir: added more exclusions

2011-05-04T11:04:35Z

added more exclusions

Kir: Added /* Basic container operations */

2011-05-04T10:44:28Z

Added ‎Basic container operations

Kir: Added /* Known issues */

2011-05-04T09:48:27Z

Added ‎Known issues

Kir: created

2011-04-29T17:31:06Z

created

New page

== Prerequisites ==

You have to have Tilera MDE installed in the following way:

gpg -d /path/to/tileramde-3.0.0.123096_tilepro.tar.bz2.gpg | tar xjf -
gpg -d /path/to/tileramde-3.0.0.123096_tilepro_src.tar.bz2.gpg | tar xjf -
eval $(TileraMDE-3.0.0.123096/tilepro/tile-env)
cd $TILERA_ROOT
gpg -d /path/to/tileramde-3.0.0.123096_tilepro_tile.tar.bz2.gpg | tar xjf -
cat << EOF > tile/.profile
HOME=/root
cd
EOF

In other words:
* tilepro and tilepro_src tarballs are unpacked to the same directory
* tilepro_tile tarball is unpacked under $TILERA_ROOT
* $TILERA_ROOT/tile/.profile is created as shown above

== Creating OpenVZ template ==

A template is just a tarball of a Linux distribution installed into
a chroot-like environment. Here, we can just use $TILERA_ROOT/tile contents,
omitting just some less-needed contents:

cd $TILERA_ROOT/tile
tar cvzf ../tile.tar.gz . \
--exclude ./boot \
--exclude ./lib/modules \
--exclude ./usr/share/doc \
--exclude ./usr/share/locale

== Compile/install vzctl ==

vzctl is a tool to control OpenVZ containers. To compile it:

cd $TILERA_ROOT
TAR=vzctl-tilera-20110429-3.tar.bz2
wget http://download.openvz.org/.kir/tilera/$TAR
tar xvjf $TAR
rm -rf vbuild
mkdir vbuild
cd vbuild
sh ../src/packages/vzctl/tile-extract
./tile-build --install

At this point you should have vzctl installed into $TILERA_ROOT/tile

In addition, put the OpenVZ template into an appropriate directory:

cd $TILERA_ROOT
cp tile.tar.gz tile/vz/template/cache/

== Compile/install OpenVZ kernel ==

This kernel is based on RHEL6-2.6.32 plus OpenVZ patches 042test008.1,
plus backported Tilera patches taken from Tilera MDE 3.0.0.123096
2.6.36 kernel source.

This is an initial port, with some known bugs and limitations.

FIXME: what options/features are not yet ported?

Here is how to compile OpenVZ kernel:

cd $TILERA_ROOT
TAR=kernel-rhel6-ovz-tilera-20110429.tar.bz2
wget http://download.openvz.org/.kir/tilera/$TAR
tar xjf $TAR
mkdir kbuild
cd kbuild
export ARCH=tile
sh $TILERA_ROOT/src/sys/rhel6-ovz-kernel/tile-prepare
make -j32
make modules_install INSTALL_MOD_PATH=$TILERA_ROOT/tile/

== Running OpenVZ ==

=== Preparing a chroot script ===

cat << EOF > $TILERA_ROOT/tile/chroot.sh
cd /mnt
mount --bind /sys sys
mount --bind /proc proc
mount -t tmpfs tmpfs /mnt/dev
cp -a /dev/ /mnt/
chroot . /bin/bash
# Rollback
umount /mnt/dev
umount /mnt/sys
umount /mnt/proc
EOF

=== Running kernel ===

cd $TILERA_ROOT/kbuild
tile-monitor --vmlinux vmlinux --pci --mount $TILERA_ROOT/tile/ /mnt/

=== Running OpenVZ ===

In another shell session, run screen in order to access console.

screen -S console /dev/ttyS1 115200

In the screen session, switch to chroot using the script prepared before:

/mnt/chroot.sh

You should now see bash prompt (bash-4.1#).

Next, start OpenVZ:

/etc/init.d/vzeventd start
/etc/init.d/vz start

Before creating a container, we should disable DISK_QUOTA in global
OpenVZ configuration file (vzquota utility is not yet ported to Tilera):

sed -i s/^DISK_QUOTA=.*$/DISK_QUOTA=no/ /etc/vz/vz.conf

Now we can create our first container. The following command will take the
tarball /vz/template/cache/tile.tar.gz and unpack it into /vz/private/101.
It also creates /vz/root/101 and a container config file
/etc/vz/conf/101.conf.

vzctl create 101 --ostemplate tile

NOTE: creation takes quite a long time because of sheperd-fuse mount being
used. I do not know of any better way to access a host system's FS from
inside the Tilera environment.

Next we can start the freshly created container:

vzctl start 101

← Older revision		Revision as of 11:08, 4 May 2011
Line 172:		Line 172:
	# Need to figure out networking setup in Tilera container		# Need to figure out networking setup in Tilera container
	# No RTC: <code>hwclock: can't open '/dev/misc/rtc': No such file or directory</code>		# No RTC: <code>hwclock: can't open '/dev/misc/rtc': No such file or directory</code>
		+	# OS template cache (tile.tar.gz) is still very big -- to solve it Tilera needs proper package management

@@ Line 111: / Line 111: @@
   /etc/init.d/vzeventd restart
   /etc/init.d/vz restart
 Before creating a container, we should disable DISK_QUOTA in global
@@ Line 131: / Line 133: @@
   vzctl start 101
 == Known issues ==

@@ Line 3: / Line 3: @@
 You have to have Tilera MDE installed in the following way:
-  gpg -d /path/to/tileramde-3.0.0.123096_tilepro.tar.bz2.gpg | tar xjf -
+  gpg -d /path/to/tileramde-3.0.0.123096_tilepro.tar.bz2.gpg | tar xjf —
-  gpg -d /path/to/tileramde-3.0.0.123096_tilepro_src.tar.bz2.gpg | tar xjf -
+  gpg -d /path/to/tileramde-3.0.0.123096_tilepro_src.tar.bz2.gpg | tar xjf —
   eval $(TileraMDE-3.0.0.123096/tilepro/tile-env)
   cd $TILERA_ROOT
-  gpg -d /path/to/tileramde-3.0.0.123096_tilepro_tile.tar.bz2.gpg | tar xjf -
+  gpg -d /path/to/tileramde-3.0.0.123096_tilepro_tile.tar.bz2.gpg | tar xjf —
   cat << EOF > tile/.profile
   HOME=/root
@@ Line 29: / Line 29: @@
    --exclude ./lib/modules \
    --exclude ./usr/share/doc \
-   --exclude ./usr/share/locale
+   --exclude ./usr/share/locale \
 == Compile/install vzctl ==

@@ Line 96: / Line 96: @@
   cd $TILERA_ROOT/kbuild
   tile-monitor --vmlinux vmlinux --pci --mount $TILERA_ROOT/tile/ /mnt/
 In another shell session, run screen in order to access console.
@@ Line 111: / Line 109: @@
 Next, start OpenVZ:
-  /etc/init.d/vzeventd start
+  /etc/init.d/vzeventd restart
-  /etc/init.d/vz start
+  /etc/init.d/vz restart
 Before creating a container, we should disable DISK_QUOTA in global
@@ Line 133: / Line 131: @@
   vzctl start 101