From bfe0723728ae2d995b99f22fe9783a34889b1828 Mon Sep 17 00:00:00 2001 From: tv Date: Thu, 1 Oct 2015 01:48:15 +0200 Subject: move config scripts to krebs --- krebs/default.nix | 263 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 263 insertions(+) create mode 100644 krebs/default.nix (limited to 'krebs/default.nix') diff --git a/krebs/default.nix b/krebs/default.nix new file mode 100644 index 00000000..0ec4c607 --- /dev/null +++ b/krebs/default.nix @@ -0,0 +1,263 @@ +{ current-date +, current-host-name +, current-user-name +}@current: rec { + + deploy = + { system ? current-host-name + , target ? system + }@args: let + config = lib.get-config system; + in '' + #! /bin/sh + # ${current-date} ${current-user-name}@${current-host-name} + # krebs.deploy + set -efu + (${lib.populate args}) + ${lib.rootssh target '' + ${lib.install args} + ${config.krebs.build.profile}/bin/switch-to-configuration switch + ''} + echo OK + ''; + + infest = + { system ? current-host-name + , target ? system + }@args: let + in '' + #! /bin/sh + # ${current-date} ${current-user-name}@${current-host-name} + # krebs.infest + set -efu + + # XXX type -p is non-standard + #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 \"\$@\"" + #} + + ${lib.rootssh target '' + ${builtins.readFile ./4lib/infest/prepare.sh} + ${builtins.readFile ./4lib/infest/install-nix.sh} + ''} + + (${lib.populate args}) + + ${lib.rootssh target '' + export PATH; PATH=/root/.nix-profile/bin:$PATH + + src=$(type -p nixos-install) + cat_src() { + sed < "$src" "$( + { sed < "$src" -n ' + /^if ! test -e "\$mountPoint\/\$NIXOS_CONFIG/,/^fi$/= + /^nixpkgs=/= + /^NIX_PATH=/,/^$/{/./=} + + # Disable: Copy the NixOS/Nixpkgs sources to the target as + # the initial contents of the NixOS channel. + /^srcs=/,/^ln -sfn /= + ' + } | sed 's:$:s/^/#krebs#/:' + )" + } + + # Location to insert lib.install + i=$(sed -n '/^echo "building the system configuration/=' "$src") + + { + cat_src | sed -n "1,$i{p}" + cat ${lib.doc (lib.install args)} + cat_src | sed -n "$i,\''${$i!p}" + } > nixos-install + chmod +x nixos-install + + ## Wrap inserted lib.install 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 + + ${builtins.readFile ./4lib/infest/finalize.sh} + ''} + ''; + + init = + { system ? current-host-name + }@args: let + config = lib.get-config system; + in '' + #! /bin/sh + # ${current-date} ${current-user-name}@${current-host-name} + # krebs.init + set -efu + + system=${lib.shell.escape system} + secrets_dir=${config.krebs.build.source.dir.secrets.path} + key_type=ed25519 + key_file=$secrets_dir/ssh.id_$key_type + key_comment=$system + + if test -e "$key_file"; then + echo "Warning: privkey already exists: $key_file" >&2 + else + ssh-keygen \ + -C "$key_comment" \ + -t "$key_type" \ + -f "$key_file" \ + -N "" + rm "$key_file.pub" + fi + + pubkey=$(ssh-keygen -y -f "$key_file") + + cat<; } // rec { + + stockholm = import ../. current; + + get-config = system: + stockholm.${current-user-name}.${system}.config + or (abort "unknown system: ${system}"); + + doc = s: + let b = "EOF${builtins.hashString "sha256" s}"; in + '' + <<\${b} + ${s} + ${b} + ''; + + rootssh = target: script: + "ssh root@${target} -T ${lib.doc '' + set -efu + ${script} + ''}"; + + install = + { system ? current-host-name + , target ? system + }: + let + stockholm = import ../. { + inherit current-date; + inherit current-host-name; + inherit current-user-name; + }; + + config = stockholm.${current-user-name}.${system}.config + or (abort "unknown system: ${system}"); + + nix-path = + lib.concatStringsSep ":" + (lib.mapAttrsToList (name: _: "${name}=/root/${name}") + (config.krebs.build.source.dir // + config.krebs.build.source.git)); + in '' + set -efu + NIX_PATH=${lib.shell.escape nix-path} \ + nix-env \ + --show-trace \ + -f '' \ + -Q \ + --argstr current-date ${lib.shell.escape current-date} \ + --argstr current-host-name ${lib.shell.escape current-host-name} \ + --argstr current-user-name ${lib.shell.escape current-user-name} \ + --profile ${lib.shell.escape config.krebs.build.profile} \ + --set \ + -A ${lib.escapeShellArg (lib.concatStringsSep "." [ + config.krebs.build.user.name + config.krebs.build.host.name + "system" + ])} + ''; + + populate = + { system ? current-host-name + , target ? system + }@args: + let out = '' + #! /bin/sh + # ${current-date} ${current-user-name}@${current-host-name} + set -efu + ${lib.concatStringsSep "\n" + (lib.concatMap + (type: lib.mapAttrsToList (_: methods.${type}) + config.krebs.build.source.${type}) + ["dir" "git"])} + ''; + + stockholm = import ../. { + inherit current-date; + inherit current-host-name; + inherit current-user-name; + }; + + config = stockholm.${current-user-name}.${system}.config + or (abort "unknown system: ${system}"); + + current-host = config.krebs.hosts.${current-host-name}; + current-user = config.krebs.users.${current-user-name}; + + target-host = config.krebs.hosts.${system}; + + methods.dir = config: + let + can-link = config.host.name == target-host.name; + can-push = config.host.name == current-host.name; + push-method = '' + rsync \ + --exclude .git \ + --exclude .graveyard \ + --exclude old \ + --exclude tmp \ + --rsync-path='mkdir -p ${config.target-path} && rsync' \ + --delete-excluded \ + -vrLptgoD \ + ${config.path}/ \ + root@${target}:${config.target-path} + ''; + url = "file://${config.host.name}${config.path}"; + in + #if can-link then link-method else + if can-push then push-method else + throw "cannot source ${url}"; + + methods.git = config: + lib.rootssh 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 + ''; + in out; + }; +} -- cgit v1.2.3