Templates

Note: This information is heavily outdated as it was last time checked years ago.

Here is a list of results in attempts to checkpoint/resume containers with vzctl + criu bundle running on vanilla 3.13 kernel. Note the tests were done with Andrey Vagin patches applied to vzctl: "hook_ct: remove the non-working with devpts", "hook_ct: bind mount the host /dev directory in CT". Also the vz configs require LOCAL_UID="0" and LOCAL_GID="0" (also no net features were used).

template	start /stop	suspend /resume	status	comments
centos-6 [1]	+	+/-		drop udev as "rpm -e udev --nodeps" in container (as Andrew explained, because we don't support user-namespace the udev might generate ADD events which do not reach container but hit the node itself causing weird effects on host system
fedora-20 [2]	+	-		(00.037318) Error (namespaces.c:155): Can't dump nested mnt namespace for 2640
ubuntu-10.04-minimal [3]	+	+		-
arch [4]	+	-		starts with warning "Failed to get D-Bus connection: No connection to service manager", suspend fails with "Error (files-reg.c:529): Unaccessible path opened 5:5354, need 64257:311335"
debian-7-minimal [5]	+	-	in-progress	(00.187218) Error (mount.c:548): Can't bind-mount 47:/run to /tmp/cr-tmpfs.L1kDQI: No such file or directory
oracle-6 [6]	+	+		-
owl-3 [7]	+	-		(00.082286) Error (sk-unix.c:173): Unix socket 0x9071 not found
scientific-6-x86_64-20131201 [8]	+	+		-
slackware-13.37-x86_64-minimal [9]	+	-		(00.079770) Error (sk-unix.c:220): Unix socket 0xb914 without peer 0xb4ac
suse-9.3 [10]	-	-		Failed to mount /sys: No such file or directory. Can't rmdir vzctl-old-root.9eSTPo: Device or resource busy

Precreated official templates

Testing with https://github.com/avagin/vzctl @master

template	start /enter /stop	suspend /resume	comments
centos-6 [11]	+/+/+	+/+	local-uid/gid = 0
debian-7 [12]	+/-/-	-/?	with userns (dump: Error (mount.c:352): 47:/lib/x86_64-linux-gnu/security/pam_loginuid.so doesn't have a proper root mount, enter: Unable to open pty: No such file or directory)
debian-7 [13]	+/+/+	-/?	local-uid/gid = 0 (Error (mount.c:548): Can't bind-mount 52:/run to /tmp/cr-tmpfs.wYvT1r: No such file or directory)
fedora-20 [14]	+/+/+	-/?	local-uid/gid = 0 (Error (namespaces.c:155): Can't dump nested mnt namespace for 14590)
scientific-6 [15]	?	?	untested
suse-12.3 [16]	?	?	untested
ubuntu-10.04 [17]	+/+/+	+/+	local-uid/gid = 0
ubuntu-13.10 [18]	?	?	untested