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https://github.com/ilyakooo0/nixpkgs.git
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nixos/nix-daemon: work on buildMachines submodule
This commit is contained in:
Vincent Breitmoser
parent
1ed248eac2
commit
5395397fd6
@ -193,43 +193,60 @@ in
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};
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buildMachines = mkOption {
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type = types.loaOf (submodule ({ config }: {
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type = types.listOf (types.submodule ({
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options = {
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sshUser = mkOption {
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type = types.nullOr types.string;
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default = null;
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description = ''
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The user as who to SSH to the build machine.
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'';
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};
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hostName = mkOption {
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type = types.string;
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type = types.str;
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example = "nixbuilder.example.org";
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description = ''
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The hostname of the build machine.
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'';
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};
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system = mkOption {
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type = types.string;
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type = types.nullOr types.str;
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default = null;
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example = "x86_64-linux";
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description = ''
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The system type the build machine can execute derivations on.
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null if multiple are supported.
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Either this attribute or <varname>systems</varname> must be
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present, where <varname>system</varname> takes precedence if
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both are set.
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'';
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};
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systems = mkOption {
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type = types.listOf types.string;
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type = types.listOf types.str;
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default = [];
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example = [ "x86_64-linux" "aarch64-linux" ];
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description = ''
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The system types the build machine can execute derivations on.
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Either this attribute or <varname>system</varname> must be
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present, where <varname>system</varname> takes precedence if
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both are set.
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'';
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};
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sshUser = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "builder";
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description = ''
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The username to log in as on the remote host. This user must be
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able to log in and run nix commands non-interactively. It must
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also be privileged to build derivations, so must be included in
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<option>nix.trustedUsers</option>.
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'';
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};
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sshKey = mkOption {
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type = types.string;
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default = "-";
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type = types.nullOr types.str;
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default = null;
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example = "/root/.ssh/id_buildhost_builduser";
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description = ''
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The path to the SSH private key with which to authenticate with
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the build machine. <literal>"-"</literal> indicates falling back
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on defaults.
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The path to the SSH private key with which to authenticate on
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the build machine. The private key must not have a passphrase.
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If null, the building user (root on NixOS machines) must have an
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appropriate ssh configuration to log in non-interactively.
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Note that for security reasons, this path must point to a file
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in the local filesystem, *not* to the nix store.
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'';
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};
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maxJobs = mkOption {
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@ -237,7 +254,7 @@ in
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default = 1;
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description = ''
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The number of concurrent jobs the build machine supports. The
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build machine will enforce its own limits but this allows hydra
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build machine will enforce its own limits, but this allows hydra
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to schedule better since there is no work-stealing between build
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machines.
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'';
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@ -246,82 +263,41 @@ in
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type = types.int;
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default = 1;
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description = ''
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Something at indicates how fast the machine is relative to an
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arbitrary norm???
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The relative speed of this builder. This is an arbitrary integer
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that indicates the speed of this builder, relative to other
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builders. Higher is faster.
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'';
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};
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mandatoryFeatures = mkOptions {
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type = types.listOf types.string;
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mandatoryFeatures = mkOption {
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type = types.listOf types.str;
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default = [];
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decriptions = ''
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A list of features derivations built with this remote are
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required to opt into using. (See the documentation on Nix itself
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for what those features are.)
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example = [ "big-parallel" ];
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description = ''
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A list of features mandatory for this builder. The builder will
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be ignored for derivations that don't require all features in
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this list. All mandatory features are automatically included in
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<varname>supportedFeatures</varname>.
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'';
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};
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supportedFeatures = mkOptions {
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type = types.listOf types.string;
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supportedFeatures = mkOption {
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type = types.listOf types.str;
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default = [];
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decriptions = ''
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A list of features derivations built with this remote may choose
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to use or not. (See the documentation on Nix itself for what
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those features are.)
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example = [ "kvm" "big-parallel" ];
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description = ''
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A list of features supported by this builder. The builder will
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be ignored for derivations that require features not in this
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list.
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'';
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};
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};
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config = {
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assertions = [{
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assertion = config.system != null || config.systems != null;
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message = ''
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At least one system type (via <varname>system</varname> or
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<varname>systems</varname>) must be set for every build machine.
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'';
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}];
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};
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}));
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default = [];
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example = literalExample ''
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[ { hostName = "voila.labs.cs.uu.nl";
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sshUser = "nix";
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sshKey = "/root/.ssh/id_buildfarm";
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system = "powerpc-darwin";
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maxJobs = 1;
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}
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{ hostName = "linux64.example.org";
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sshUser = "buildfarm";
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sshKey = "/root/.ssh/id_buildfarm";
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system = "x86_64-linux";
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maxJobs = 2;
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speedFactor = 2;
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supportedFeatures = [ "kvm" ];
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mandatoryFeatures = [ "perf" ];
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}
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]
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'';
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description = ''
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This option lists the machines to be used if distributed
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builds are enabled (see
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<option>nix.distributedBuilds</option>). Nix will perform
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derivations on those machines via SSH by copying the inputs
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to the Nix store on the remote machine, starting the build,
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then copying the output back to the local Nix store. Each
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element of the list should be an attribute set containing
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the machine's host name (<varname>hostname</varname>), the
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user name to be used for the SSH connection
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(<varname>sshUser</varname>), the Nix system type
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(<varname>system</varname>, e.g.,
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<literal>"i686-linux"</literal>), the maximum number of
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jobs to be run in parallel on that machine
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(<varname>maxJobs</varname>), the path to the SSH private
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key to be used to connect (<varname>sshKey</varname>), a
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list of supported features of the machine
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(<varname>supportedFeatures</varname>) and a list of
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mandatory features of the machine
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(<varname>mandatoryFeatures</varname>). The SSH private key
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should not have a passphrase, and the corresponding public
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key should be added to
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<filename>~<replaceable>sshUser</replaceable>/authorized_keys</filename>
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on the remote machine.
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This option lists the machines to be used if distributed builds are
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enabled (see <option>nix.distributedBuilds</option>).
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Nix will perform derivations on those machines via SSH by copying the
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inputs to the Nix store on the remote machine, starting the build,
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then copying the output back to the local Nix store.
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'';
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};
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@ -548,7 +524,7 @@ in
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concatMapStrings (machine:
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"${if machine.sshUser != null then "${machine.sshUser}@" else ""}${machine.hostName} "
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+ (if machine.system != null then machine.system else concatStringsSep "," machine.systems)
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+ " ${machine.sshKey} ${toString machine.maxJobs} "
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+ " ${if machine.sshKey != null then machine.sshKey else "-"} ${toString machine.maxJobs} "
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+ toString (machine.speedFactor)
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+ " "
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+ concatStringsSep "," (machine.mandatoryFeatures ++ machine.supportedFeatures)
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