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==Known issues== | ==Known issues== | ||
* Problems with SELinux | * Problems with SELinux | ||
** In version 4.4 we introduced new script for disable SELinux | ** In version 4.4 we introduced new script for disable SELinux <code>/usr/libexec/vzctl/scripts/vz-postinstall</code> | ||
* Random system freezes | * Random system freezes | ||
** {{bz | 982489}} | ** {{bz | 982489}} | ||
* Kernel older or equal 3.10 | * Kernel older or equal 3.10 | ||
** You shall execute | ** You shall execute <code>vzctl exec 101 killall udevd</code> | ||
===4.3.1 specific=== | ===4.3.1 specific=== | ||
* Doesn't work | * Doesn't work <code>vzctl exec 101 ps axf</code> (proc is not mounted) | ||
** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2658 2658] | ** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2658 2658] | ||
* criu: command not found | * criu: command not found | ||
** | ** <code>yum install crtools</code> (Patch sent to maintainers) | ||
* Doesn't work | * Doesn't work <code>vzctl restore 101</code> (VE_VETH_DEVS failure) | ||
** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2659 2659] | ** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2659 2659] | ||
==Bug Reports== | ==Bug Reports== | ||
* If something went wrong you can see dump.log in <code>/var/lib/vz/dump/Dump.101.fail/</code> and send bugreport. | * If something went wrong you can see dump.log in <code>/var/lib/vz/dump/Dump.101.fail/</code> and send bugreport. | ||
* For bugreport you shall create archive dump and attach to BZ. Create archive (as root): | * For bugreport you shall create archive dump and attach to BZ. Create archive (as root): | ||
<code>cd /var/lib/vz/dump/Dump.101.fail/ && tar -cJf /Dump.101.fail.tar.xz *</code> | |||
* [https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=vzctl New bug] | * [https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=vzctl New bug] | ||
|setup= | |setup= | ||
# Open terminal | # Open terminal | ||
# Switch to root user: | # Switch to root user: <code>su -</code> | ||
# Install: | # Install: <code>yum install vzctl</code> | ||
# Prepare sysctl settings for network: | |||
## <code>sysctl net.ipv4.ip_forward=1</code> | |||
## <code>sysctl net.ipv4.ip_forward=1</code> | |||
## <code>sysctl net.ipv4.conf.default.proxy_arp=0</code> | |||
## <code>sysctl net.ipv4.conf.all.rp_filter=1</code> | |||
## <code>sysctl net.ipv4.conf.default.send_redirects=1</code> | |||
## <code>sysctl net.ipv4.conf.all.send_redirects=0</code> | |||
|actions= | |actions= | ||
# Create new container: | # Create new container: <code>vzctl create 101 --ostemplate centos-6-x86_64</code> | ||
# Start container: | # Start container: <code>vzctl start 101</code> | ||
# Exec ps in container: | # Add network interface in container: <code>vzctl set 101 --netif_add em1</code> | ||
# Enter to container: | # Exec ps in container: <code>vzctl exec 101 ps axf</code> | ||
# Exec ps in container directly: | # Enter to container: <code>vzctl enter 101</code> | ||
# Exit from container: | # Enable network intarface: <code>ip link set em1 up</code> | ||
# Suspend container: | # Assign ip address to interface: <code>ip addr add 192.168.50.240/24 dev em1</code> | ||
# Restore container: | # Add route for interface: <code>ip route add default via 192.168.50.254 dev em1</code> | ||
# Stop container: | # Exec ps in container directly: <code>ps axf</code> | ||
# Exit from container: <code>logout</code> | |||
# Enable virtual net interface: <code>ip link set veth101.1 up</code> | |||
# Add route for virtual net interface: <code>ip route add 192.168.50.240/32 dev veth101.1</code> | |||
# Suspend container: <code>vzctl suspend 101</code> | |||
# Restore container: <code>vzctl restore 101</code> or <code>vzctl resume 101</code> | |||
# Enter to container: <code>vzctl enter 101</code> | |||
# Test network: <code>ping -c 3 8.8.8.8</code> | |||
# Exit from container: <code>logout</code> | |||
# Stop container: <code>vzctl stop 101</code> | |||
|results= | |results= | ||
The following must be true to consider this a successful test run. Be brief ... but explicit. | The following must be true to consider this a successful test run. Be brief ... but explicit. |
Revision as of 10:25, 22 July 2013
Description
Basic tests for OpenVZ Linux Containers and Checkpoint/Restore In Userspace (CRIU)
Known issues
- Problems with SELinux
- In version 4.4 we introduced new script for disable SELinux
/usr/libexec/vzctl/scripts/vz-postinstall
- In version 4.4 we introduced new script for disable SELinux
- Random system freezes
- RHBZ # 982489
- Kernel older or equal 3.10
- You shall execute
vzctl exec 101 killall udevd
- You shall execute
4.3.1 specific
- Doesn't work
vzctl exec 101 ps axf
(proc is not mounted)- OpenVZ # 2658
- criu: command not found
yum install crtools
(Patch sent to maintainers)
- Doesn't work
vzctl restore 101
(VE_VETH_DEVS failure)- OpenVZ # 2659
Bug Reports
- If something went wrong you can see dump.log in
/var/lib/vz/dump/Dump.101.fail/
and send bugreport. - For bugreport you shall create archive dump and attach to BZ. Create archive (as root):
cd /var/lib/vz/dump/Dump.101.fail/ && tar -cJf /Dump.101.fail.tar.xz *
Setup
- Open terminal
- Switch to root user:
su -
- Install:
yum install vzctl
- Prepare sysctl settings for network:
sysctl net.ipv4.ip_forward=1
sysctl net.ipv4.ip_forward=1
sysctl net.ipv4.conf.default.proxy_arp=0
sysctl net.ipv4.conf.all.rp_filter=1
sysctl net.ipv4.conf.default.send_redirects=1
sysctl net.ipv4.conf.all.send_redirects=0
How to test
- Create new container:
vzctl create 101 --ostemplate centos-6-x86_64
- Start container:
vzctl start 101
- Add network interface in container:
vzctl set 101 --netif_add em1
- Exec ps in container:
vzctl exec 101 ps axf
- Enter to container:
vzctl enter 101
- Enable network intarface:
ip link set em1 up
- Assign ip address to interface:
ip addr add 192.168.50.240/24 dev em1
- Add route for interface:
ip route add default via 192.168.50.254 dev em1
- Exec ps in container directly:
ps axf
- Exit from container:
logout
- Enable virtual net interface:
ip link set veth101.1 up
- Add route for virtual net interface:
ip route add 192.168.50.240/32 dev veth101.1
- Suspend container:
vzctl suspend 101
- Restore container:
vzctl restore 101
orvzctl resume 101
- Enter to container:
vzctl enter 101
- Test network:
ping -c 3 8.8.8.8
- Exit from container:
logout
- Stop container:
vzctl stop 101
Expected Results
The following must be true to consider this a successful test run. Be brief ... but explicit.
- All steps completes without error
- Steps #3, #5 shows the same. Like this:
Directory /proc/vz not found, assuming non-OpenVZ kernel PID TTY STAT TIME COMMAND 551 pts/0 R+ 0:00 ps axf 1 ? Ss 0:00 init 59 ? S<s 0:00 /sbin/udevd -d 299 ? S< 0:00 \_ /sbin/udevd -d 459 ? Sl 0:00 /sbin/rsyslogd -i /var/run/syslogd.pid -c 5 488 ? Ss 0:00 /usr/sbin/sshd 495 ? Ss 0:00 xinetd -stayalive -pidfile /var/run/xinetd.pid 502 ? Ss 0:00 /usr/sbin/saslauthd -m /var/run/saslauthd -a pam -n 2 503 ? S 0:00 \_ /usr/sbin/saslauthd -m /var/run/saslauthd -a pam -n 2 518 ? Ss 0:00 sendmail: accepting connections 526 ? Ss 0:00 sendmail: Queue runner@01:00:00 for /var/spool/clientmqueue 534 ? Ss 0:00 /usr/sbin/httpd 537 ? S 0:00 \_ /usr/sbin/httpd 542 ? Ss 0:00 crond
Optional
Optionally provide hints for exploratory testing.