[lxc-users] Missing /proc/self after lxc-attach ?
Hi ! I am facing problem that /proc/self is missing after I enter container via lxc-attach. [1] When I log in to same container via lxc-start -F console, everything looks OK. [2] Is it bug or feature? It reduces usability of lxc-attach as many apps like top [3] and dynamic linking via RPATH [4] are not working :( Confirmed Ubuntu 14.04. [5]. TIA, regards, [1]: After lxc-attach entry to container: # ls -la /proc/self ls: cannot read symbolic link /proc/self: No such file or directory lrwxrwxrwx 1 root root 0 Feb 15 12:05 /proc/self [2]: After login via lxc-start console: # ls -la /proc/self lrwxrwxrwx 1 root root 0 Feb 15 12:05 /proc/self -> 1476 [3]: # top Error, do this: mount -t proc proc /proc [4]: LD_TRACE_LOADED_OBJECTS=1 ./java linux-vdso.so.1 (0x7ffd40fd8000) libjli.so => not found objdump -a -x java | grep -i rpath RPATH$ORIGIN/../lib/amd64/jli:/usr/jre/lib/amd64/jli: $ORIGIN/../lib/amd64:/usr/lib/amd64: $ORIGIN/../jre/lib/amd64:/usr/jre/lib/amd64 [5]: lxc-create -t download -n ubuntu_tursty_test -- -d ubuntu -r trusty -a amd64 -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] Missing /proc/self after lxc-attach ?
On Monday 15 February 2016 15:04:31 Wolfgang Bumiller wrote: > > On February 15, 2016 at 1:29 PM Mateusz Korniak > > wrote: [1]: After lxc-attach entry to > > container: > > # ls -la /proc/self > > ls: cannot read symbolic link /proc/self: No such file or directory > > lrwxrwxrwx 1 root root 0 Feb 15 12:05 /proc/self > > What is the exact command you used to attach? Just: # lxc-attach -n test-container > Because eg. if you only > enter the mount namespace but not the PID namespace, then you see the > container's /proc with the *container*'s processes and thus your PID > doesn't show up, making /proc/self a dead symlink. Both /proc looks similar, except in /proc from lxc-start console login I can see extra process entry: 1479 self -> 1479 I am confused, why I do not see that process entry from lxc-attach view of /proc regardless of missing /proc/self ? BTW, I have not mention it but its kernel 4.1.15 lxc 1.1.5 TIA, regards, -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
[lxc-users] systemd[1]: Starting of glusterfs.automount not supported (inside lxc 1.1.5 container)
Hi ! I am trying to have glusterfs automounted on demand inside lxc 1.1.5 container. /etc/fstab line which works on host machine: 10.30.3.31,10.30.3.32:/test_vol /mnt/glusterfs_biuro_test_vol glusterfs _netdev,x- systemd.automount,x-systemd.device-timeout=3m 0 0 when used inside container refuses to work [1]. I can, though, mount manually inside same container via: # mount /mnt/glusterfs_biuro_test_vol What am I doing wrong? TIA for any hints, regards, [1]: # systemctl status mnt-glusterfs_biuro_test_vol.automount ● mnt-glusterfs_biuro_test_vol.automount Loaded: loaded (/etc/fstab) Active: inactive (dead) Where: /mnt/glusterfs_biuro_test_vol Docs: man:fstab(5) man:systemd-fstab-generator(8) Jun 14 14:22:52 clients-www systemd[1]: Starting of mnt- glusterfs_biuro_test_vol.automount not supported. -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] Networking issue
On Wednesday 09 of November 2016 01:33:55 Saint Michael wrote: > lxc.network.type=macvlan > lxc.network.hwaddr = XX:XX:XX:XX:XX:XX > > Now suppose I have a machine, not a container, in the same broadcast domain > as the containers, same subnet. > It cannot ping or ssh into a container, which is accessible from outside my > network. > However, from inside the container the packets come and go perfectly, when > the connection is originated by the container. > (...) > Any idea? Make sure you do not have lxc.network.hwaddr duplicates (many containers with same hwaddr). Turn off container and make sure it stops being "accessible from outside my network" -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] Networking issue
On Wednesday 09 of November 2016 01:33:55 Saint Michael wrote: > Now suppose I have a machine, not a container, in the same broadcast domain > as the containers, same subnet. > It cannot ping or ssh into a container, which is accessible from outside my > network. > However, from inside the container the packets come and go perfectly, when > the connection is originated by the container. > A container can ping that host I mentioned, but the host cannot ping back > the container. Assuming you have container on host and external machine, if you can: machine ~]$ ping container but not (if I understand correctly): container ~]$ ping machine compare (tcpdump -e icmp -n ) of both pings on machine and host to see if they are different? check if they do not get filtered by rp_filter sysctl -a | grep [.]rp_filter -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
[lxc-users] How to set lxc.network.ipv4/hwaddr/ipv4.gateway=auto in LXD 2.6 managed container?
I am trying to move from LXC 1.1.x (macvlan) [1] containers to recent LXD [2].
I am stuck with problem:
- how can I set static ipv4/hwaddr and ipv4.gateway=auto?
I switched default profile to maclvan [3].
I created test container:
# lxc init ubuntu:16.04 ubuntu-1604-macvlan-test
Starting it confirms that macvlan iface works. Disbled DHCP configuration of
eth0@if2, and now setting IP# fails:
# lxc config device set ubuntu-1604-macvlan-test virt ipv4.address 10.30.3.205
error: The device doesn't exist
It's confusing as virt device is visible in lxc config show [4], but not in
lxc config device list ubuntu-1604-macvlan-test [5]?
TIA, regards,
[1]: Old LXC network config
lxc.network.type = macvlan
lxc.network.macvlan.mode = bridge
lxc.network.hwaddr = 00:16:3e:00:31:12
lxc.network.ipv4 = 10.30.3.112/23
lxc.network.ipv4.gateway = auto
[2]: versions:
lxc-2.0.6
lxd-2.6
[3]:
# lxc profile show default
name: default
config: {}
description: Default LXD profile
devices:
virt:
nictype: macvlan
parent: eth0
type: nic
usedby:
- /1.0/containers/ubuntu-1604-macvlan-test
[4]:
# lxc config show --expanded ubuntu-1604-macvlan-test
name: ubuntu-1604-macvlan-test
profiles:
- default
config:
image.architecture: amd64
image.description: ubuntu 16.04 LTS amd64 (release) (20161130)
image.label: release
image.os: ubuntu
image.release: xenial
image.serial: "20161130"
image.version: "16.04"
volatile.base_image:
fc6d723a6e662a5a4fe213eae6b7f4c79ee7dd566c99856d96a5ca677a99b15d
volatile.idmap.base: "0"
volatile.idmap.next:
'[{"Isuid":true,"Isgid":false,"Hostid":100,"Nsid":0,"Maprange":10},
{"Isuid":false,"Isgid":true,"Hostid":100,"Nsid":0,"Maprange":10}]'
volatile.last_state.idmap:
'[{"Isuid":true,"Isgid":false,"Hostid":100,"Nsid":0,"Maprange":10},
{"Isuid":false,"Isgid":true,"Hostid":100,"Nsid":0,"Maprange":10}]'
volatile.last_state.power: STOPPED
volatile.root.hwaddr: 00:16:3e:be:9b:1b
volatile.root.name: eth1
volatile.virt.hwaddr: 00:16:3e:e3:22:75
volatile.virt.name: eth0
devices:
root:
path: /
type: disk
virt:
nictype: macvlan
parent: eth0
type: nic
ephemeral: false
[5]:
# lxc config device list ubuntu-1604-macvlan-test
root: disk
--
Mateusz Korniak
"(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś,
krótko mówiąc - podpora społeczeństwa."
Nikos Kazantzakis - "Grek Zorba"
___
lxc-users mailing list
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Re: [lxc-users] no ping between host and lxc container
On Tuesday 20 of December 2016 17:04:08 Fajar A. Nugraha wrote: > What I did in my host, is create a macvlan interface for the host, and move > host's eth0 IP address there. > > (...) > ### from "lxc config show container_name" > devices: > eth0: > name: eth0 > nictype: macvlan > parent: eth0 > type: nic > > > So I use host eth0 (now without IP, as its ip is moved to v-0, which is a > macvlan interface) as "parent" in lxd (this should be "lxc.network.link" in > lxc). If you have problems with flockport's guide, try my setup. Are you able to set MAC address for lxc container? How do you setup IP# for container? TIA, regards, -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] no ping between host and lxc container
On Tuesday 20 of December 2016 18:06:38 Fajar A. Nugraha wrote: > > How do you setup IP# for container? > > (...) by default there's no way to > set (and restrict) IP address from the host side. It's a pity. [1]. Perhaps, any idea how one get LXC config lxc.network.ipv4.gateway = auto equivalent in LXD? BTW, what lxc/lxd versions you are using, as in my case network devices are visible only by: lxc config show --expanded not by simple: lxc config show as looks in your case ... [1]: I am confused though, as many tutorials claim that: lxc config device set CONT DEV ipv4.address 10.x.y.z should work :/ TIA, regards, -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
