diff options
Diffstat (limited to 'krebs/3modules/build/default.nix')
| -rw-r--r-- | krebs/3modules/build/default.nix | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/krebs/3modules/build/default.nix b/krebs/3modules/build/default.nix new file mode 100644 index 00000000..d6ee5c91 --- /dev/null +++ b/krebs/3modules/build/default.nix @@ -0,0 +1,264 @@ +{ config, lib, ... }: + +with import ../../4lib { inherit lib; }; + +let + target = config.krebs.build // { user.name = "root"; }; + + out = { + # TODO deprecate krebs.build.host + options.krebs.build.host = mkOption { + type = types.host; + }; + + # TODO make krebs.build.profile shell safe + options.krebs.build.profile = mkOption { + type = types.str; + default = "/nix/var/nix/profiles/system"; + }; + + # TODO make krebs.build.target.host :: host + options.krebs.build.target = mkOption { + type = with types; nullOr str; + default = null; + }; + + # TODO deprecate krebs.build.user + options.krebs.build.user = mkOption { + type = types.user; + }; + + options.krebs.build.scripts.deploy = lib.mkOption { + type = lib.types.str; + default = '' + set -efu + (${config.krebs.build.scripts._source}) + ${ssh-target '' + ${config.krebs.build.scripts._nix-env} + ${config.krebs.build.profile}/bin/switch-to-configuration switch + ''} + echo OK + ''; + }; + + options.krebs.build.scripts.infest = lib.mkOption { + type = lib.types.str; + default = '' + set -efu + + export RSYNC_RSH; RSYNC_RSH="$(type -p ssh) \ + -o 'HostName ${target.host.infest.addr}' \ + -o 'Port ${toString target.host.infest.port}' \ + " + ssh() { + eval "$RSYNC_RSH \"\$@\"" + } + + ${ssh-target '' + ${readFile ./infest/prepare.sh} + ${readFile ./infest/install-nix.sh} + ''} + + (${config.krebs.build.scripts._source}) + + ${ssh-target '' + export PATH; PATH=/root/.nix-profile/bin:$PATH + + src=$(type -p nixos-install) + cat_src() { + sed < "$src" "$( + sed < "$src" -n ' + /^if ! test -e "\$mountPoint\/\$NIXOS_CONFIG/,/^fi$/= + /^nixpkgs=/= + /^NIX_PATH=/,/^$/{/./=} + ' \ + | sed 's:$:s/^/#krebs#/:' + )" + } + + # Location to insert config.krebs.build.scripts._nix-env + i=$(sed -n '/^echo "building the system configuration/=' "$src") + + { + cat_src | sed -n "1,$i{p}" + cat ${doc config.krebs.build.scripts._nix-env} + cat_src | sed -n "$i,\''${$i!p}" + } > nixos-install + chmod +x nixos-install + + # Wrap inserted config.krebs.build.scripts._nix-env into chroot. + nix_env=$(cat_src | sed -n ' + s:.*\(/nix/store/[a-z0-9]*-nix-[0-9.]\+/bin/nix-env\).*:\1:p;T;q + ') + echo nix-env is $nix_env + sed -i ' + s:^nix-env:chroot $mountPoint '"$nix_env"': + ' nixos-install + + ./nixos-install + + ${readFile ./infest/finalize.sh} + ''} + ''; + }; + + options.krebs.build.scripts._nix-env = lib.mkOption { + type = lib.types.str; + default = '' + set -efu + NIX_PATH=${config.krebs.build.source.NIX_PATH} \ + nix-env \ + -f '<stockholm>' \ + -Q \ + --argstr user-name ${config.krebs.exec.user.name} \ + --argstr host-name ${target.host.name} \ + --profile ${config.krebs.build.profile} \ + --set \ + -A ${lib.escapeShellArg (lib.concatStringsSep "." [ + config.krebs.build.user.name + config.krebs.build.host.name + "system" + ])} + ''; + }; + + options.krebs.build.scripts._source = lib.mkOption { + type = lib.types.str; + default = '' + set -efu + ${ + lib.concatStringsSep "\n" + (lib.mapAttrsToList + (name: { scripts, url, ... }: "(${scripts._source})") + (config.krebs.build.source.dir // + config.krebs.build.source.git)) + } + ''; + }; + + options.krebs.build.source.NIX_PATH = mkOption { + type = types.str; + default = + lib.concatStringsSep ":" + (lib.mapAttrsToList (name: _: "${name}=/root/${name}") + (config.krebs.build.source.dir // + config.krebs.build.source.git)); + }; + + options.krebs.build.source.dir = mkOption { + type = + let + exec = config.krebs.exec; + in + types.attrsOf (types.submodule ({ config, ... }: + let + url = "file://${config.host.name}${config.path}"; + + can-link = config.host.name == target.host.name; + can-push = config.host.name == exec.host.name; + + push-method = '' + rsync \ + --exclude .git \ + --exclude .graveyard \ + --exclude old \ + --exclude tmp \ + --rsync-path='mkdir -p ${config.target-path} && rsync' \ + --delete-excluded \ + -vrLptgoD \ + ${config.path}/ \ + ${target.user.name}@${target.host.name}:${config.target-path} + ''; + in + { + options = { + host = mkOption { + type = types.host; + }; + path = mkOption { + type = types.str; + }; + scripts._source = mkOption { + type = types.str; + default = + #if can-link then link-method else + if can-push then push-method else + throw "cannot source ${url}"; + }; + target-path = mkOption { + type = types.str; + default = "/root/${config._module.args.name}"; + }; + url = mkOption { + type = types.str; + default = "file://${config.host.name}${config.path}"; + }; + }; + } + )); + default = {}; + }; + + options.krebs.build.source.git = mkOption { + type = + let + target = config.krebs.build // { user.name = "root"; }; + in + with types; attrsOf (submodule ({ config, ... }: + { + options = { + url = mkOption { + type = types.str; # TODO must be shell safe + }; + rev = mkOption { + type = types.str; + }; + scripts._source = mkOption { + type = types.str; + default = ssh-target '' + mkdir -p ${config.target-path} + cd ${config.target-path} + if ! test -e .git; then + git init + fi + if ! cur_url=$(git config remote.origin.url 2>/dev/null); then + git remote add origin ${config.url} + elif test "$cur_url" != ${config.url}; then + git remote set-url origin ${config.url} + fi + if test "$(git rev-parse --verify HEAD 2>/dev/null)" != ${config.rev}; then + git fetch origin + git checkout ${config.rev} -- . + git checkout -q ${config.rev} + git submodule init + git submodule update + fi + git clean -dxf + ''; + }; + target-path = mkOption { + type = types.str; + default = "/root/${config._module.args.name}"; + }; + }; + } + )); + default = {}; + }; + }; + + doc = s: + let b = "EOF${hashString "sha256" s}"; in + '' + <<\${b} + ${s} + ${b} + ''; + + ssh-target = script: + "ssh root@${target.host.name} -T ${doc '' + set -efu + ${script} + ''}"; + +in out |