* Remove nixos-deploy-network. It has been superceded by Charon.

svn path=/nixos/trunk/; revision=33662
This commit is contained in:
Eelco Dolstra 2012-04-07 13:26:35 +00:00
parent 6e7859814c
commit 301c4d96b1
5 changed files with 1 additions and 309 deletions

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@ -1,112 +0,0 @@
<refentry xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refmeta>
<refentrytitle><command>nixos-deploy-network</command></refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="source">NixOS</refmiscinfo>
<!-- <refmiscinfo class="version"><xi:include href="version.txt" parse="text"/></refmiscinfo> -->
</refmeta>
<refnamediv>
<refname><command>nixos-deploy-network</command></refname>
<refpurpose>deploy a network of NixOS configurations into a network of machines</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>nixos-deploy-network</command>
<arg><option>--show-trace</option></arg>
<arg><option>--no-out-link</option></arg>
<arg><option>--help</option></arg>
<arg choice="plain"><replaceable>network.nix</replaceable></arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsection><title>Description</title>
<para>This command automatically deploys a network of NixOS
configurations into a network of machines.
First, it tries to build all the system derivations defined
in the network expression. Then it efficiently transfers
the closures to the machines in the network. Finally, the configurations
are activated. In case of a failure, a rollback is performed,
which brings all the updated configurations back into the previous
state.</para>
<para>A network Nix expression has the following structure:
<screen>
{
test1 = {pkgs, config, ...}:
{
services.openssh.enable = true;
nixpkgs.system = "i686-linux";
deployment.targetHost = "test1.example.net";
# Other NixOS options
};
test2 = {pkgs, config, ...}:
{
services.openssh.enable = true;
services.httpd.enable = true;
environment.systemPackages = [ pkgs.lynx ];
nixpkgs.system = "x86_64-linux";
deployment.targetHost = "test2.example.net";
# Other NixOS options
};
}
</screen>
Each attribute in the expression represents a machine in the network
(e.g. <varname>test1</varname> and <varname>test2</varname>)
referring to a function defining a NixOS configuration.
In each NixOS configuration, two attributes have a special meaning.
The <varname>deployment.targetHost</varname> specifies the address
(domain name or IP address)
of the system which is used by <command>ssh</command> to perform
remote deployment operations. The <varname>nixpkgs.system</varname>
attribute can be used to specify an architecture for the target machine,
such as <varname>i686-linux</varname> which builds a 32-bit NixOS
configuration. Omitting this property will build the configuration
for the same architecture as the host system.
</para>
</refsection>
<refsection><title>Options</title>
<para>This command accepts the following options:</para>
<variablelist>
<varlistentry>
<term><option>--show-trace</option></term>
<listitem>
<para>Shows a trace of the output.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-out-link</option></term>
<listitem>
<para>Do not create a 'result' symlink.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-h</option>, <option>--help</option></term>
<listitem>
<para>Shows the usage of this command to the user.</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
</refentry>

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@ -26,6 +26,6 @@
<xi:include href="man-configuration.xml" />
<xi:include href="man-nixos-rebuild.xml" />
<xi:include href="man-nixos-option.xml" />
<xi:include href="man-nixos-deploy-network.xml" />
<xi:include href="man-nixos-build-vms.xml" />
</reference>

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@ -1,121 +0,0 @@
{ nixos ? /etc/nixos/nixos
, nixpkgs ? /etc/nixos/nixpkgs
, networkExprs
, targetProperty ? "targetHost"
}:
let
pkgs = import nixpkgs {};
inherit (builtins) attrNames getAttr listToAttrs;
inherit (pkgs.lib) concatMapStrings zipAttrs;
networks = map (networkExpr: import networkExpr) networkExprs;
network = zipAttrs networks;
generateRollbackSucceededPhase = network: configs:
concatMapStrings (configurationName:
let
config = getAttr configurationName configs;
in
''
if [ "$rollback" != "$succeeded" ]
then
ssh $NIX_SSHOPTS ${getAttr targetProperty (config.deployment)} nix-env -p /nix/var/nix/profiles/system --rollback
ssh $NIX_SSHOPTS ${getAttr targetProperty (config.deployment)} /nix/var/nix/profiles/system/bin/switch-to-configuration switch
rollback=$((rollback + 1))
fi
''
) (attrNames network)
;
generateDistributionPhase = network: configs:
concatMapStrings (configurationName:
let
config = getAttr configurationName configs;
in
''
echo "=== copy system closure to ${getAttr targetProperty (config.deployment)} ==="
nix-copy-closure --to ${getAttr targetProperty (config.deployment)} ${config.system.build.toplevel}
''
) (attrNames network)
;
generateActivationPhase = network: configs:
concatMapStrings (configurationName:
let
config = getAttr configurationName configs;
in
''
echo "=== activating system configuration on ${getAttr targetProperty (config.deployment)} ==="
ssh $NIX_SSHOPTS ${getAttr targetProperty (config.deployment)} nix-env -p /nix/var/nix/profiles/system --set ${config.system.build.toplevel} ||
(ssh $NIX_SSHOPTS ${getAttr targetProperty (config.deployment)} nix-env -p /nix/var/nix/profiles/system --rollback; rollbackSucceeded)
ssh $NIX_SSHOPTS ${getAttr targetProperty (config.deployment)} /nix/var/nix/profiles/system/bin/switch-to-configuration switch ||
( ssh $NIX_SSHOPTS ${getAttr targetProperty (config.deployment)} nix-env -p /nix/var/nix/profiles/system --rollback
ssh $NIX_SSHOPTS ${getAttr targetProperty (config.deployment)} /nix/var/nix/profiles/system/bin/switch-to-configuration switch
rollbackSucceeded
)
succeeded=$((succeeded + 1))
''
) (attrNames network)
;
evaluateMachines = network:
listToAttrs (map (configurationName:
let
modules = getAttr configurationName network;
in
{ name = configurationName;
value = (import "${nixos}/lib/eval-config.nix" {
inherit nixpkgs;
modules =
modules ++
[ # Provide a default hostname and deployment target equal
# to the attribute name of the machine in the model.
{ key = "set-default-hostname";
networking.hostName = pkgs.lib.mkOverride 900 configurationName;
deployment.targetHost = pkgs.lib.mkOverride 900 configurationName;
}
];
extraArgs = { nodes = evaluateMachines network; };
}).config; }
) (attrNames (network)));
configs = evaluateMachines network;
in
pkgs.stdenv.mkDerivation {
name = "deploy-script";
# This script has a zillion dependencies and is trivial to build, so
# we don't want to build it remotely.
preferLocalBuild = true;
buildCommand =
''
ensureDir $out/bin
cat > $out/bin/deploy-systems << "EOF"
#! ${pkgs.stdenv.shell} -e
rollbackSucceeded()
{
rollback=0
${generateRollbackSucceededPhase network configs}
}
# Distribution phase
${generateDistributionPhase network configs}
# Activation phase
succeeded=0
${generateActivationPhase network configs}
EOF
chmod +x $out/bin/deploy-systems
'';
}

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@ -1,70 +0,0 @@
#! @shell@ -e
# Shows the usage of this command to the user
showUsage()
{
echo "Usage: $0 network_expr [network_expr2 ...]"
echo "Options:"
echo
echo "--show-trace Shows an output trace"
echo "--no-out-link Do not create a 'result' symlink"
echo "-h,--help Shows the usage of this command"
}
# Parse valid argument options
PARAMS=`getopt -n $0 -o h -l show-trace,no-out-link,help -- "$@"`
if [ $? != 0 ]
then
showUsage
exit 1
fi
eval set -- "$PARAMS"
# Evaluate valid options
while [ "$1" != "--" ]
do
case "$1" in
--show-trace)
showTraceArg="--show-trace"
;;
--no-out-link)
noOutLinkArg="--no-out-link"
;;
-h|--help)
showUsage
exit 0
;;
esac
shift
done
shift
# Validate the given options
if [ -z "$NIXOS" ]
then
NIXOS=/etc/nixos/nixos
fi
if [ "$@" = "" ]
then
echo "ERROR: At least one network Nix expression must be specified!" >&2
exit 1
else
for i in $@
do
networkExprs="$networkExprs \"$(readlink -f $i)\""
done
fi
# Deploy the network
vms=`nix-build $NIXOS/modules/installer/tools/nixos-deploy-network/deploy.nix --arg networkExprs "[ $networkExprs ]" --argstr nixos $NIXOS $showTraceArg $noOutLinkArg`
$vms/bin/deploy-systems

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@ -17,11 +17,6 @@ let
src = ./nixos-build-vms/nixos-build-vms.sh;
};
nixosDeployNetwork = makeProg {
name = "nixos-deploy-network";
src = ./nixos-deploy-network/nixos-deploy-network.sh;
};
nixosInstall = makeProg {
name = "nixos-install";
src = ./nixos-install.sh;