updates to incorporate cascade installer
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9
common/cascade-packages.nix
Normal file
9
common/cascade-packages.nix
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@ -0,0 +1,9 @@
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with import (toString ../functions);
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with builtins;
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{pkgs, ...}:
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{
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config.nixpkgs.overlays = attrValues (import-folder {path = (toString ../overlays);});
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}
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@ -1,36 +1,53 @@
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with builtins;
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with import (toString ../functions);
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{config, lib, ...}: {
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{pkgs, config, lib, ...}: {
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options = with lib; with types; {
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environment.cascade-source.enable = mkOption {
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cascade.source.enable = mkOption {
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default = true;
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type = bool;
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description = ''
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Include cascade source code configured for nixos-rebuild.
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'';
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};
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cascade.source.git-url = mkOption {
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default = "https://gitlab.com/jamesandariese/cascade";
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type = str;
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description = ''
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git URL where cascade sources can be found
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'';
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};
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cascade.source.set-nix-path = mkOption {
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default = true;
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type = bool;
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description = ''
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set cascade=/usr/src/cascade in NIX_PATH if cascade.source.enable is also true.
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if this option or cascade.source.enable are false, this will not be done.
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'';
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};
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};
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config = with lib; {
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system.activationScripts.cascade-source = mkMerge [
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(mkIf config.environment.cascade-source.enable ''
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mkdir -m 0755 -p /usr/src /etc/nixos
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[ -h /usr/src/cascade ] && rm /usr/src/cascade # do this first so the dir test that comes next won't read the symlink as a dir
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[ -d /usr/src/cascade ] && mv /usr/src/cascade /usr/src/cascade.before-nixos
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ln -sfn ${./..} /usr/src/cascade # but why isn't this atomic?
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ln -sf /usr/src/cascade/hosts/${config.networking.hostName}.nix /etc/nixos/configuration.nix
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(mkIf config.cascade.source.enable ''
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if [ ! -f /usr/src/cascade/.created-by-nixos ];then
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mkdir -m 0755 -p /usr/src /etc/nixos
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[ -e /usr/src/cascade ] && mv /usr/src/cascade /usr/src/cascade.before-nixos
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${pkgs.git}/bin/git clone ${config.cascade.source.git-url} /usr/src/cascade
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touch /usr/src/cascade/.created-by-nixos
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fi
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'')
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(mkIf (!config.environment.cascade-source.enable) ''
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# if we delete the symlink version of cascade, we delete a symlink in /etc/nixos as well
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[ -h /usr/src/cascade ] && rm /usr/src/cascade && \
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[ -h /etc/nixos/configuration.nix ] && rm /etc/nixos/configuration.nix
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(mkIf (!config.cascade.source.enable) ''
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# only cleanup if we actually created /usr/src/cascade
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if [ -f /usr/src/cascade/.created-by-nixos ];then
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rm -rf /usr/src/cascade && \
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[ -e /usr/src/cascade.before-nixos ] && mv /usr/src/cascade.before-nixos /usr/src/cascade
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fi
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'')
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];
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nix.nixPath = [
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"nixos-config=/etc/nixos/configuration.nix"
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];
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nix.nixPath = mkIf (config.cascade.source.set-nix-path && config.cascade.source.enable) [ "cascade=/usr/src/cascade" ];
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};
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}
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63
overlays/cascade-installer.nix
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63
overlays/cascade-installer.nix
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@ -0,0 +1,63 @@
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final: prev: {
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cascade-installer = prev.writeShellApplication {
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name="cascade-installer";
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runtimeInputs = with final; [ bash git parted util-linux jq ];
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text=''
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usage() {
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1>&2 echo "usage: cascade-installer HOSTNAME BLOCKDEVTONUKE PROFILE"
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}
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if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ];then
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usage
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exit 1
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fi
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HOSTNAME="$1"
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BLOCKDEVTONUKE="$2"
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PROFILE="$3"
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if ! [ -d /usr/src/cascade/profiles/"$PROFILE" ];then
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1>&2 echo "profile $PROFILE does not exist. possible options:"
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(cd /usr/src/cascade/profiles/ && 1>&2 printf " %s\n" [a-zA-Z0-9]*)
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exit 1
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fi
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mkdir -p /mnt
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# if the block device has children...
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if lsblk -J "$BLOCKDEVTONUKE" | jq -e '.blockdevices[]|.children' > /dev/null ; then
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1>&2 echo "$BLOCKDEVTONUKE still has partitions. please clear the block device before installing"
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exit 3
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fi
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parted "$BLOCKDEVTONUKE" -- mklabel gpt
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parted "$BLOCKDEVTONUKE" -- mkpart primary 512MiB -2GiB
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parted "$BLOCKDEVTONUKE" -- mkpart primary linux-swap -2GiB 100%
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parted "$BLOCKDEVTONUKE" -- mkpart ESP fat32 1MiB 512MiB
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parted "$BLOCKDEVTONUKE" -- set 3 esp on
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parted "$BLOCKDEVTONUKE" -- name 1 nixos
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parted "$BLOCKDEVTONUKE" -- name 2 nixos-swap
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parted "$BLOCKDEVTONUKE" -- name 3 ESP
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sync
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sleep 3
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BLK_NIXOS="$(lsblk -OJ "$BLOCKDEVTONUKE" | jq -r '.blockdevices[].children[]|select(.partlabel == "nixos")|.name')"
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BLK_SWAP="$(lsblk -OJ "$BLOCKDEVTONUKE" | jq -r '.blockdevices[].children[]|select(.partlabel == "nixos-swap")|.name')"
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BLK_ESP="$(lsblk -OJ "$BLOCKDEVTONUKE" | jq -r '.blockdevices[].children[]|select(.partlabel == "ESP")|.name')"
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mkfs.xfs -L nixos "$BLK_NIXOS"
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mkswap -L nixos-swap "$BLK_SWAP"
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mkfs.fat -F 32 -n BOOT "$BLK_ESP"
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mount "$BLK_NIXOS" /mnt
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mkdir -p /mnt/boot /mnt/etc/nixos
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sed -e '
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s#[(] *toString ../profiles/.*[)]#(toString /usr/src/cascade/profiles/'"$PROFILE"')#
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s#networking.hostName = "nixos";#networking.hostName = "'"$HOSTNAME"'";#
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' < /usr/src/cascade/hosts/_basic.nix > /etc/nixos/configuration.nix
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swapon "$BLK_SWAP"
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nixos-install
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'';
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};
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}
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@ -1,4 +1,5 @@
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{pkgs ? (import "${import ../../nixpkgs-path.nix}" {}), ...}:
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#{pkgs ? (import "${import ../../nixpkgs-path.nix}" {}), ...}:
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{pkgs, ...}:
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{
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imports = [
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(toString ../../common)
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@ -7,7 +8,7 @@
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# used for deployment. This is done automatically with shell.nix.
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];
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config = {
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environment.systemPackages = with pkgs; [ bridge-utils git ];
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environment.systemPackages = with pkgs; [ bridge-utils git cascade-installer ];
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programs.neovim.enable = true;
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programs.neovim.vimAlias = true;
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programs.neovim.viAlias = true;
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@ -28,6 +29,7 @@
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nix.nixPath = with pkgs; [
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"nixos-config=/etc/nixos/configuration.nix"
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"nixpkgs=${ import ../../nixpkgs-path.nix }"
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"home-manager=/usr/src/home-manager"
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"morph-options=${morph.lib}/options.nix"
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@ -2,7 +2,9 @@
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with lib;
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{
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imports = [ (toString ../qemu-vm) ];
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imports = [
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(toString ../qemu-vm)
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];
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config = {
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cascade.bridge-interface = mkForce null; # let it come up with its default interface with dhcp first
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@ -35,11 +35,6 @@ mkvirt() {
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return 1
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fi
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# free-ips.txt contains fre IPs, one per line
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# this is currently not being used in favor of DHCP towards the end
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#IPALLOC="$(head -1 free-ips.txt)"
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#sed -i -e '1d' free-ips.txt
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[ -f "result/nixos.img" ] || (
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1>&2 echo "you do not seem to have a result/nixos.img file. building one now."
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rebuild-nixos-image || errcho "could not build result/nixos.img." || return $?
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