From: Ian Kelling <ian@iankelling.org>
Date: Fri, 28 Oct 2016 15:29:01 +0000 (-0700)
Subject: add helper scripts, docs
X-Git-Url: https://iankelling.org/git/?p=automated-distro-installer;a=commitdiff_plain;h=bcdb96792264d6cda20e6d2fa176728a67c87862

add helper scripts, docs
---

diff --git a/README b/README
index b7bfa78..a3b16b7 100644
--- a/README
+++ b/README
@@ -40,11 +40,14 @@ Main scripts meant to be called interactively:
 arch-init-remote # install arch (after it's been booted into it's setup env)
 chboot # Set grub to boot into a different distro (installed earlier)
 dsfull # install & setup a new fai distro (if data partition already synced)
+eboot # reboot and keep disks encrypted
+fai-kexec # kexec to fai tftp server that pxe would normally point to
 fai-revm  # test fai on a fresh vm
 faiserver-revm # create a vm which is a fai server using pxe & preseed file
 faiserver-uninstall # uninstall fai-server
 faiserver-setup # install fai-server on the current machine
 fresize # resize swap or boot partitions in a host
+myfai-chboot # Sets up tftp pxe config on fai server
 pxe-server # temporarily enable (usually) fai or arch boot server
 wrt-setup-remote  # setup my router
 ubuntu-xenial-live-fai-kexec # do fai install from xenial live cd using kexec
diff --git a/dsfull b/dsfull
index e24c549..06af7f8 100755
--- a/dsfull
+++ b/dsfull
@@ -1,10 +1,17 @@
 #!/bin/bash -l
 # Copyright (C) 2016 Ian Kelling
 
-# distro setup full using fai. (assuming we already synced data files to the host)
-# Usage: dsfull [-r] HOST
-# -r for no reboot.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
 
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 set -eE -o pipefail
 cleanup() { :; }
@@ -16,27 +23,63 @@ if [[ $1 == -r ]]; then
     shift
 fi
 
+usage() {
+    cat <<EOF
+Usage: ${0##*/} [OPTIONS] HOST
+distro setup full using fai. (assuming we already synced data files to the host)
+
+--no-r     Don't ssh to host and reboot.
+-k         ssh to host and kexec, don't use pxe. implies --no-r
+-h|--help  Print help and exit.
+
+Note: Uses GNU getopt options parsing style
+EOF
+    exit $1
+}
+
+##### begin command line parsing ########
+
+reboot=true
+kexec=false
+temp=$(getopt -l help,no-r hk "$@") || usage 1
+eval set -- "$temp"
+while true; do
+    case $1 in
+        --no-r) reboot=false; shift ;;
+        -k) kexec=true; reboot=false; shift ;;
+        -h|--help) usage ;;
+        --) shift; break ;;
+        *) echo "$0: Internal error!" ; exit 1 ;;
+    esac
+done
 host=$1
 
-if [[ ! $host || $host == -h ]]; then
+##### end command line parsing ########
+
+
+if [[ ! $host ]]; then
     echo "$0: error: expected 1 arg of hostname"
     exit 1
 fi
 
-set -x
-
-cleanup() { pxe-server; }
-pxe-server $host fai
+e() { echo "$@"; "$@"; }
+if $kexec; then
+    e fai-redep
+    e myfai-chboot $host
+    e fai-kexec $host ||:
+else
+    cleanup() { pxe-server; }
+    e pxe-server $host fai
 
+    if $reboot; then
+        # untested, this caused hang using here doc.
+        ssh $host "touch /tmp/keyscript-off; sudo reboot" ||: &
+    fi
 
-if $reboot; then
-    # untested, this caused hang using here doc.
-    ssh $host "touch /tmp/keyscript-off; sudo reboot" ||: &
+    e pxe-server -a
+    cleanup() { :; }
 fi
 
-pxe-server -a
-cleanup() { :; }
-
 error=true
 for ((i=0; i<240; i++)); do
     if timeout -s 9 10 ssh $host :; then
@@ -49,4 +92,4 @@ if $error; then
     echo "$0: error: timeout"
     exit 1
 fi
-dsremote $host
+e dsremote $host
diff --git a/eboot b/eboot
new file mode 100755
index 0000000..cb487cb
--- /dev/null
+++ b/eboot
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# reboot and keep disks encrypted.
+touch /tmp/keyscript-off
+[[ $EUID == 0 ]] || s=sudo
+$s reboot "$@"
diff --git a/fai-kexec b/fai-kexec
new file mode 100755
index 0000000..5e10ac2
--- /dev/null
+++ b/fai-kexec
@@ -0,0 +1,26 @@
+#!/bin/bash
+# Copyright (C) 2016 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# kexec to fai tftp server that pxe would normally point to
+
+set -eE -o pipefail
+trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
+
+if [[ $1 ]]; then
+    prefix="ssh root@$1"
+fi
+$prefix touch /tmp/keyscript-off
+$prefix pxe-kexec -n --ignore-whitelist -l fai-generated faiserver
diff --git a/pxe-server b/pxe-server
index bac22c1..9c3f917 100755
--- a/pxe-server
+++ b/pxe-server
@@ -34,7 +34,8 @@ One line description
 TYPE is one of arch, plain, fai.
 HOST is a hostname known to the dhcp server, or default for all, or none to disable
 
--r         Don't redeploy fai config.
+-r         Don't redeploy fai config. For example, if there is a different host
+           that is mid-install.
 -a         Wait for 2 dhcp acks, then disable the pxe server after a delay.
            First ack is for pxe boot, 2nd ack is for os boot. Sometimes
            on debian, there is a 3rd one shortly after the 2nd. I can't remember