amazon-init.nix: Don't run nixos-rebuild if we don't have to
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98b365386a
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@ -6,7 +6,7 @@ let
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bootScript = pkgs.writeScript "bootscript.sh" ''
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#!${pkgs.stdenv.shell} -eux
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echo "attempting to fetch configuration from user-data..."
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echo "attempting to fetch configuration from EC2 user data..."
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export PATH=${config.nix.package}/bin:${pkgs.wget}/bin:${pkgs.systemd}/bin:${pkgs.gnugrep}/bin:${pkgs.gnused}/bin:${config.system.build.nixos-rebuild}/bin:$PATH
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export NIX_PATH=/nix/var/nix/profiles/per-user/root/channels/nixos:nixos-config=/etc/nixos/configuration.nix:/nix/var/nix/profiles/per-user/root/channels
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@ -15,7 +15,7 @@ let
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wget -q --wait=1 --tries=0 --retry-connrefused -O - http://169.254.169.254/2011-01-01/user-data > "$userData"
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if [[ $? -eq 0 ]]; then
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echo "user-data fetched"
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# If the user-data looks like it could be a nix expression,
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# copy it over. Also, look for a magic three-hash comment and set
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# that as the channel.
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@ -30,17 +30,17 @@ let
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nix-channel --update
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fi
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echo "setting configuration"
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echo "setting configuration from EC2 user data"
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cp "$userData" /etc/nixos/configuration.nix
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else
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echo "user-data does not appear to be a nix expression; ignoring"
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echo "user data does not appear to be a Nix expression; ignoring"
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exit
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fi
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else
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echo "failed to fetch user-data"
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echo "failed to fetch user data"
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exit
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fi
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type -f nixos-rebuild
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nixos-rebuild switch
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'';
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in {
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