Re: [packer] Error executing packer build on Ubuntu VM (Xenial)

[Rickard von Essen]

Can you share your packer template?

On Jan 20, 2018 06:01, "HSB" <hsbawa.te...@gmail.com> wrote:

Hi, Created new VM Box using Vagrant. I can SSH and also connect to internet from that host.

But when I execute packer build (type: lxd) with shell commands for ubuntu updates, I get following error. I can CURL all of the following urls from command line successfully. I have name-servers setup properly. 

But, I am not sure why packer is complaining about it? Thoughts?

    xenial-container: Firewall stopped and disabled on system startup

    xenial-container: sudo: unable to resolve host packer-xenial-container: Connection refused

    xenial-container: Err:1 http://security.ubuntu.com/ubuntu xenial-security InRelease

    xenial-container:   Temporary failure resolving 'security.ubuntu.com'

    xenial-container: Err:2 http://archive.ubuntu.com/ubuntu xenial InRelease

    xenial-container:   Temporary failure resolving 'archive.ubuntu.com'

    xenial-container: Err:3 http://archive.ubuntu.com/ubuntu xenial-updates InRelease

    xenial-container:   Temporary failure resolving 'archive.ubuntu.com'

    xenial-container: Err:4 http://archive.ubuntu.com/ubuntu xenial-backports InRelease

    xenial-container:   Temporary failure resolving 'archive.ubuntu.com'

    xenial-container: W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease  Temporary failure resolving 'archive.ubuntu.com'

    xenial-container: W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease  Temporary failure resolving 'archive.ubuntu.com'

    xenial-container: W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease  Temporary failure resolving 'security.ubuntu.

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[HSB]

Thanks. After some debugging and playing around, I found that the issue was with Linux Container configuration and packer failed executing commands on Linux Container. 

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[Peter Goodall]

Hello,

Can you let me know what the problem was please. I am having the same issue.

I am building from 'ubuntu-daily:16.04' as a base, from a ubuntu 16.04  host.

Cheers,

--Peter G

On Sunday, January 21, 2018 at 6:11:27 AM UTC+11, HSB wrote:

Thanks. After some debugging and playing around, I found that the issue was with Linux Container configuration and packer failed executing commands on Linux Container. 

[...]

[Peter Goodall]

Hello Rickard,

I am using ‘ubuntu-daily:16.04’ as my base_image.
have attached relevant files. Project very similar to the example you posted for me some time ago.
Here is the output from running packer:

 packer build template.json
lxd-xenial output will be in this color.

==> lxd-xenial: Creating container...
==> lxd-xenial: Provisioning with shell script: /tmp/packer-shell321894822
    lxd-xenial: Distributor ID: Ubuntu
    lxd-xenial: No LSB modules are available.
    lxd-xenial: Description:    Ubuntu 16.04.4 LTS
    lxd-xenial: Release:        16.04
    lxd-xenial: Codename:       xenial
    lxd-xenial: # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
    lxd-xenial: #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
    lxd-xenial: ping: unknown host archive.ubuntu.com
==> lxd-xenial: Unregistering and deleting deleting container...

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[Peter Goodall]

Seems to be a timing issue. Runs OK with -debug flag on packer.

sleep 15s makes it suceed too:

"provisioners": [
      {
        "type": "shell",
        "inline": [ 
          "lsb_release -a",
          "sleep 15s",
          "cat /etc/resolv.conf",
          "ping -c 1 archive.ubuntu.com",
          "apt-get update && apt-get install -y python-minimal" ]
      },

 packer build -debug template.json
Debug mode enabled. Builds will not be parallelized.
lxd-xenial output will be in this color.

==> lxd-xenial: Creating container...
==> lxd-xenial: Pausing after run of step 'stepLxdLaunch'. Press enter to continue. 
==> lxd-xenial: Provisioning with shell script: /tmp/packer-shell373068117
    lxd-xenial: Distributor ID:    Ubuntu
    lxd-xenial: No LSB modules are available.
    lxd-xenial: Description:    Ubuntu 16.04.4 LTS
    lxd-xenial: Release:    16.04

    lxd-xenial: Codename:    xenial
    lxd-xenial: # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
    lxd-xenial: #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN

    lxd-xenial: nameserver 10.89.242.1
    lxd-xenial: search lxd
    lxd-xenial: PING archive.ubuntu.com (91.189.88.162) 56(84) bytes of data.
    lxd-xenial: 64 bytes from yukinko.canonical.com (91.189.88.162): icmp_seq=1 ttl=48 time=278 ms
    lxd-xenial:
    lxd-xenial: --- archive.ubuntu.com ping statistics ---
    lxd-xenial: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
    lxd-xenial: rtt min/avg/max/mdev = 278.910/278.910/278.910/0.000 ms
    lxd-xenial: Hit:1 http://archive.ubuntu.com/ubuntu xenial InRelease
    lxd-xenial: Get:2 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
    lxd-xenial: Get:3 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]
    lxd-xenial: Get:4 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages [463 kB]
    lxd-xenial: Get:5 http://archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]
    lxd-xenial: Get:6 http://archive.ubuntu.com/ubuntu xenial/universe amd64 Packages [7532 kB]

[Rickard von Essen]

Great troubleshooting. I don't know LXC/LXD very well but I expect that there is some network script that runs on startup and adjusts the network settings. Looks like it is possible to get in before that has completed. 

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