Re: [Nix-dev] How to bootstrap a server using Nixops?
On Fri, 1 May 2015 08:46:14 +
Rob Vermaas wrote:
> Hi Jeff,
>
>
> On Thu, Apr 30, 2015 at 11:17 PM, Jeffrey David Johnson
> wrote:
>
> > It's possible I'm getting the wrong idea about what nixops is for, but I
> > used
> > it to set up an Amazon EC2 instance with the idea of logging into the
> > server
> > and administering it using local commands afterward.
>
>
> That's an interesting and unexpected usecase of nixops. I wouldn't use
> nixops at all if you plan on doing this. Why not just start instance in the
> Amazon AWS Console or using the command line tools of AWS? (for ami's see
> https://nixos.org/wiki/NixOS_on_Amazon_EC2)
You're right that looks more like what I wanted! Sorry just didn't see
it before. I'll post my scripts below for clarification but don't worry
about troubleshooting them. I wonder if the NixOps manual should
include a link to that page? Something like "If you just want to
install NixOS on the server, see here instead". It's the kind of
distinction, like installing the OS itself to a USB drive vs installing
the LiveCD installer, that seems obvious in hindsight but new
people might miss.
> > The initial install goes
> > fine. Afterward I clone my nixcfg repo (including nixpkgs submodule) and
> > try to
> > set it up the way I would a physical machine, by copying everything from
> > /etx/nixos/* into nixcfg/configs/cyno.nix and modifying it to
> > point inside the repo:
> >
> > { config, pkgs, ... }:
> >
> > {
> > imports = [
> > ../nixpkgs/nixos/modules/virtualization/amazon-config.nix
> > ];
> > ec2.hvm = true;
> > services.journald.rateLimitBurst = 0;
> > }
> >
> >
> > When I do a `nixos-rebuild` (part of install.sh) though, it gives this
> > error:
> >
> > [root@cyno:~/nixcfg]# ./install.sh test
> > building Nix...
> > error: getting status of
> > ‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No
> > such file or directory
> > (use ‘--show-trace’ to show detailed location information)
> > error: getting status of
> > ‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No
> > such file or directory
> > (use ‘--show-trace’ to show detailed location information)
> > building the system configuration...
> > error: getting status of
> > ‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No
> > such file or directory
> > (use ‘--show-trace’ to show detailed location information)
> >
> > Now I notice something strange:
> > /root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix
> > exists, but
> > `ls` throws an error when listing it:
> >
> > ls /root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix
> > ls: cannot access
> > /root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix: No
> > such file or directory
> >
> > If I approach it "slowly" by listing /root/nixcfg, then
> > /root/nixcfg/nixpkgs,
> > all the way to the full path it *does* work. I googled around a little and
> > according to this:
> >
> > http://superuser.com/questions/446280/no-such-file-or-directory
> >
> > The error can also mean a missing dynamically linked library. So I tried
> > ldd as
> > directed (though I don't understand the output), and got this:
> >
> > ldd $(which ls)
> > linux-vdso.so.1 (0x7fff01dec000)
> > libacl.so.1 =>
> > /nix/store/6mz0jhl389h7panazs5sayrydajia1s2-acl-2.2.52/lib/libacl.so.1
> > (0x7f55d0f54000)
> > libc.so.6 =>
> > /nix/store/93zfs0zzndi7pkjkjxawlafdj8m90kg5-glibc-2.20/lib/libc.so.6
> > (0x7f55d0bb7000)
> > libattr.so.1 =>
> > /nix/store/ndszpck395bi55jnz50ny99y4pvj6dqn-attr-2.4.47/lib/libattr.so.1
> > (0x7f55d09b3000)
> >
> > /nix/store/93zfs0zzndi7pkjkjxawlafdj8m90kg5-glibc-2.20/lib/ld-linux-x86-64.so.2
> > (0x7f55d115c000)
> >
> > Anyway I think there's something wrong with how the system is set up, but
> > not
> > sure what. Is there a correct way to bootstrap it to the point of using
> > the same config as my other machines?
> >
>
> Can you perhaps show us the contents of install.sh? Can you give us the AMI
> that was used (see AWS Console or commandline tools) ? Also, how did you
> copy the contents of /etc/nixos/* to /root/nixcfg ? I have never seen this
> behavior before, and tested something similar yesterday successfully.
install.sh is just a wrapper to point nixos-rebuild to my repo:
#!/usr/bin/env bash
# Automates rebuilding nixos from my repos.
# Takes the same args as nixos-rebuild.
# TODO also put NIXPKGS_CONFIG in here instead of home dir
NIXCFG="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
[[ -z "$@" ]] && NIXARGS="test --fast" || NIXARGS="$@"
nixos-rebuild \
-I mypkgs="${NIXCFG}/mypkgs" \
-I nixpkgs="${NIXCFG}/nixpkgs" \
-I nixos-config="${NIXCFG}/configs/$(hostname).nix" \
${NIXARGS}
Sorry I should have been clearer about "copied", I just meant I wrote
nixcfg/configs/cyno.nix to match what I thought the contents
of /etx/nixos did: import amazon-config.nix and set a couple ot
Re: [Nix-dev] How to bootstrap a server using Nixops?
Hi Jeff,
On Thu, Apr 30, 2015 at 11:17 PM, Jeffrey David Johnson
wrote:
> It's possible I'm getting the wrong idea about what nixops is for, but I
> used
> it to set up an Amazon EC2 instance with the idea of logging into the
> server
> and administering it using local commands afterward.
That's an interesting and unexpected usecase of nixops. I wouldn't use
nixops at all if you plan on doing this. Why not just start instance in the
Amazon AWS Console or using the command line tools of AWS? (for ami's see
https://nixos.org/wiki/NixOS_on_Amazon_EC2)
> The initial install goes
> fine. Afterward I clone my nixcfg repo (including nixpkgs submodule) and
> try to
> set it up the way I would a physical machine, by copying everything from
> /etx/nixos/* into nixcfg/configs/cyno.nix and modifying it to
> point inside the repo:
>
> { config, pkgs, ... }:
>
> {
> imports = [
> ../nixpkgs/nixos/modules/virtualization/amazon-config.nix
> ];
> ec2.hvm = true;
> services.journald.rateLimitBurst = 0;
> }
>
>
> When I do a `nixos-rebuild` (part of install.sh) though, it gives this
> error:
>
> [root@cyno:~/nixcfg]# ./install.sh test
> building Nix...
> error: getting status of
> ‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No
> such file or directory
> (use ‘--show-trace’ to show detailed location information)
> error: getting status of
> ‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No
> such file or directory
> (use ‘--show-trace’ to show detailed location information)
> building the system configuration...
> error: getting status of
> ‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No
> such file or directory
> (use ‘--show-trace’ to show detailed location information)
>
> Now I notice something strange:
> /root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix
> exists, but
> `ls` throws an error when listing it:
>
> ls /root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix
> ls: cannot access
> /root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix: No
> such file or directory
>
> If I approach it "slowly" by listing /root/nixcfg, then
> /root/nixcfg/nixpkgs,
> all the way to the full path it *does* work. I googled around a little and
> according to this:
>
> http://superuser.com/questions/446280/no-such-file-or-directory
>
> The error can also mean a missing dynamically linked library. So I tried
> ldd as
> directed (though I don't understand the output), and got this:
>
> ldd $(which ls)
> linux-vdso.so.1 (0x7fff01dec000)
> libacl.so.1 =>
> /nix/store/6mz0jhl389h7panazs5sayrydajia1s2-acl-2.2.52/lib/libacl.so.1
> (0x7f55d0f54000)
> libc.so.6 =>
> /nix/store/93zfs0zzndi7pkjkjxawlafdj8m90kg5-glibc-2.20/lib/libc.so.6
> (0x7f55d0bb7000)
> libattr.so.1 =>
> /nix/store/ndszpck395bi55jnz50ny99y4pvj6dqn-attr-2.4.47/lib/libattr.so.1
> (0x7f55d09b3000)
>
> /nix/store/93zfs0zzndi7pkjkjxawlafdj8m90kg5-glibc-2.20/lib/ld-linux-x86-64.so.2
> (0x7f55d115c000)
>
> Anyway I think there's something wrong with how the system is set up, but
> not
> sure what. Is there a correct way to bootstrap it to the point of using
> the same config as my other machines?
>
Can you perhaps show us the contents of install.sh? Can you give us the AMI
that was used (see AWS Console or commandline tools) ? Also, how did you
copy the contents of /etc/nixos/* to /root/nixcfg ? I have never seen this
behavior before, and tested something similar yesterday successfully.
Cheers,
Rob
--
Rob Vermaas
[email] rob.verm...@gmail.com
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[Nix-dev] How to bootstrap a server using Nixops?
It's possible I'm getting the wrong idea about what nixops is for, but I used
it to set up an Amazon EC2 instance with the idea of logging into the server
and administering it using local commands afterward. The initial install goes
fine. Afterward I clone my nixcfg repo (including nixpkgs submodule) and try to
set it up the way I would a physical machine, by copying everything from
/etx/nixos/* into nixcfg/configs/cyno.nix and modifying it to
point inside the repo:
{ config, pkgs, ... }:
{
imports = [
../nixpkgs/nixos/modules/virtualization/amazon-config.nix
];
ec2.hvm = true;
services.journald.rateLimitBurst = 0;
}
When I do a `nixos-rebuild` (part of install.sh) though, it gives this error:
[root@cyno:~/nixcfg]# ./install.sh test
building Nix...
error: getting status of
‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No such
file or directory
(use ‘--show-trace’ to show detailed location information)
error: getting status of
‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No such
file or directory
(use ‘--show-trace’ to show detailed location information)
building the system configuration...
error: getting status of
‘/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix’: No such
file or directory
(use ‘--show-trace’ to show detailed location information)
Now I notice something strange:
/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix exists, but
`ls` throws an error when listing it:
ls /root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix
ls: cannot access
/root/nixcfg/nixpkgs/nixos/modules/virtualization/amazon-config.nix: No such
file or directory
If I approach it "slowly" by listing /root/nixcfg, then /root/nixcfg/nixpkgs,
all the way to the full path it *does* work. I googled around a little and
according to this:
http://superuser.com/questions/446280/no-such-file-or-directory
The error can also mean a missing dynamically linked library. So I tried ldd as
directed (though I don't understand the output), and got this:
ldd $(which ls)
linux-vdso.so.1 (0x7fff01dec000)
libacl.so.1 =>
/nix/store/6mz0jhl389h7panazs5sayrydajia1s2-acl-2.2.52/lib/libacl.so.1
(0x7f55d0f54000)
libc.so.6 =>
/nix/store/93zfs0zzndi7pkjkjxawlafdj8m90kg5-glibc-2.20/lib/libc.so.6
(0x7f55d0bb7000)
libattr.so.1 =>
/nix/store/ndszpck395bi55jnz50ny99y4pvj6dqn-attr-2.4.47/lib/libattr.so.1
(0x7f55d09b3000)
/nix/store/93zfs0zzndi7pkjkjxawlafdj8m90kg5-glibc-2.20/lib/ld-linux-x86-64.so.2
(0x7f55d115c000)
Anyway I think there's something wrong with how the system is set up, but not
sure what. Is there a correct way to bootstrap it to the point of using
the same config as my other machines?
Thanks
Jeff
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