ppg-apply

   1 #!/bin/bash
   2
   3 if [[ -n "${PPG_DEBUG}" ]]; then
   4         set -x
   5 fi
   6
   7 pushd /etc/puppet >/dev/null || exit 1
   8
   9 PPG_EXEC_PATH=$( dirname $(realpath "${BASH_SOURCE[0]}" ) )
  10 GIT_EXEC_PATH=$(git --exec-path)
  11 GIT_DIR=$(git rev-parse --git-dir)
  12
  13 if [ -z "$GIT_DIR" ]; then
  14         echo >&2 "Not in a git checkout"
  15         exit 1
  16 fi
  17
  18 ## FIXME?: check whether these are overriden
  19 PUPPETCONF=/etc/puppet/puppet.conf
  20 REPORT_PATH=/var/lib/puppet/state/last_run_report.yaml
  21
  22 # puppet.conf syntax is compat with git config syntax
  23 # (both are INI style). How lucky can we be? :-)
  24 report_bool=$(git config -f $PUPPETCONF --bool --get agent.report)
  25
  26 # note: default is true
  27 if [ "$report_bool" = 'false' ]; then
  28         echo >&2 "ERROR: reports are disabled!"
  29         exit 1
  30 fi
  31 puppet apply --detailed-exitcodes $@
  32 pexit=$?
  33
  34 # From http://docs.puppetlabs.com/man/apply.html
  35 # 0 means ?? (guess: no changes)
  36 # 2 means there were changes
  37 # 4 means failures
  38 # 6 means changes & failures
  39 if [[ $pexit -eq 00 ]] || [[ $pexit -eq 2 ]]; then
  40         # mark as good
  41         lastgood_sha1=$(git rev-parse --revs-only refs/heads/ppg/lastgood)
  42         if [ -n "$lastgood_sha1" ]; then
  43                 git push . HEAD refs/heads/ppg/lastgood
  44         else
  45                 # setup with reflog - may be handy
  46                 # for diagnosis
  47                 git branch -l refs/heads/ppg/lastgood HEAD
  48         fi
  49 else
  50         ## TODO: do we want to warn in any way?
  51         :
  52 fi
  53
  54 # TODO: handle reports
  55 hostname=$(/usr/bin/hostname -f)
  56 worktree='/etc/puppet/.ppg/scratch-worktree'
  57 mkdir -p ${worktree}/reports
  58
  59 export GIT_DIR=/etc/puppet/.ppg
  60 pushd ${worktree} &>/dev/null
  61
  62 if ! git rev-parse --revs-only \
  63         refs/heads/${hostname} &>/dev/null ; then
  64         # it is going to be the first commit
  65         # FIXME: any special handling?
  66         :
  67 fi
  68 cp ${REPORT_PATH} ${worktree}/reports/${hostname}.yaml
  69 git update-index --add reports/${hostname}.yaml
  70 git commit -m 'ppg apply report'
  71
  72 headname=$(git rev-parse --symbolic-full-name --revs-only HEAD)
  73 if [[ "${headname}" != "refs/heads/${hostname}" ]]; then
  74         # we are in thefirst run, auto-created 'master' branch
  75         git branch ${hostname} HEAD
  76         git checkout ${hostname}
  77         git branch -D master
  78 fi
  79
  80 popd &>/dev/null
  81 unset GIT_DIR
  82
  83 $PPG_EXEC_PATH/ppg-push-reports
  84
  85 popd &>/dev/null