1 files changed, 104 insertions, 0 deletions
diff --git a/infest.d/cac-CentOS-7-64bit/prepare.sh b/infest.d/cac-CentOS-7-64bit/prepare.sh
new file mode 100644
index 000000000..f932e9c30
--- /dev/null
+++ b/infest.d/cac-CentOS-7-64bit/prepare.sh
@@ -0,0 +1,104 @@
+#! /bin/sh
+set -euf
+
+: $nix_url
+: $nix_sha256
+
+{
+  #
+  # prepare host
+  #
+
+  type bzip2 2>/dev/null || yum install -y bzip2
+  type rsync 2>/dev/null || yum install -y rsync
+
+  if ! getent group nixbld >/dev/null; then
+    groupadd -g 30000 -r nixbld
+  fi
+  for i in `seq 1 10`; do
+    if ! getent passwd nixbld$i 2>/dev/null; then
+      useradd \
+        -c "CentOS Nix build user $i" \
+        -d /var/empty \
+        -g 30000 \
+        -G 30000 \
+        -l \
+        -M \
+        -s /sbin/nologin \
+        -u $(expr 30000 + $i) \
+        nixbld$i
+      rm -f /var/spool/mail/nixbld$i
+    fi
+  done
+
+  # generate fake sudo because
+  # sudo: sorry, you must have a tty to run sudo
+  mkdir -p bin
+  printf '#! /bin/sh\nexec env "$@"\n' > bin/sudo
+  chmod +x bin/sudo
+
+  PATH=$PWD/bin:$PATH
+  export PATH
+
+  # install nix on host (cf. https://nixos.org/nix/install)
+  if ! test -e /root/.nix-profile/etc/profile.d/nix.sh; then
+    (
+      verify() {
+        echo $nix_sha256  $(basename $nix_url) | sha256sum -c
+      }
+      if ! verify; then
+        curl -C - -O "$nix_url"
+        verify
+      fi
+    )
+    tar jxf $(basename $nix_url)
+    $(basename $nix_url .tar.bz2)/install
+  fi
+
+  MANPATH=/var/empty . /root/.nix-profile/etc/profile.d/nix.sh
+
+  if ! type nixos-install 2>/dev/null; then
+    nixpkgs_expr='import <nixpkgs> { system = builtins.currentSystem; }'
+    nixpkgs_path=$(find /nix/store -mindepth 1 -maxdepth 1 -name *-nixpkgs-* -type d)
+    nix-env \
+      --arg config "{ nix.package = ($nixpkgs_expr).nix; }" \
+      --arg pkgs "$nixpkgs_expr" \
+      --arg modulesPath 'throw "no modulesPath"' \
+      -f $nixpkgs_path/nixpkgs/nixos/modules/installer/tools/tools.nix \
+      -iA config.system.build.nixos-install
+  fi
+
+  #
+  # mount install directory
+  #
+
+  if ! mount | grep -Fq '/dev/mapper/centos-root on /mnt type xfs'; then
+    mkdir -p /newshit
+    mount --bind /newshit /mnt
+  fi
+
+  if ! mount | grep -Fq '/dev/sda1 on /mnt/boot type xfs'; then
+    mkdir -p /mnt/boot
+    mount /dev/sda1 /mnt/boot
+  fi
+
+  if ! mount | grep -Fq '/dev/mapper/centos-root on /mnt/nix type xfs'; then
+    mkdir -p /mnt/nix
+    mount --bind /nix /mnt/nix
+  fi
+
+  mount | grep 'on /mnt\>' >&2
+
+  #
+  # prepare install directory
+  #
+  # XXX This should be done by (?)
+  #   remote_dir=/mnt ./cac pushconfig servername:c731445864-cloudpro-134581046 rmdir
+
+  mkdir -p /mnt/etc/nixos
+  mkdir -m 0555 -p /mnt/var/empty
+
+  # add eye candy
+  address=$(echo $SSH_CONNECTION | awk '{print$3}')
+  echo 'PS1='\''\[\e[1;31m\]\u@'"$address"'\[\e[m\] \[\e[1;32m\]\w\[\e[m\] '\' > .bashrc
+}