vm_remote

   1 #!/bin/sh
   2 set -e -f ${DRY_RUN:+-n} -u
   3 tool=${0%/*}
   4 . "$tool"/lib/rule.sh
   5 . "$tool"/etc/vm.sh
   6
   7 rule_help () { # SYNTAX: [--hidden]
   8         local hidden; [ ${1:+set} ] || hidden=set
   9         cat >&2 <<-EOF
  10                 DESCRIPTION:
  11                   ce script regroupe des règles pour administrer la VM ($vm_fqdn)
  12                   _depuis_ une machine distante ;
  13                   il sert à la fois d'outil (aisément bidouillable)
  14                   et de documentation (préçise).
  15                   Voir \`$tool/vm_host'   pour les règles côté machine hôte ($vm_host).
  16                   Voir \`$tool/vm_hosted' pour les règles côté VM hébergée ($vm_fqdn).
  17                 SYNTAX: $0 \$RULE \${RULE}_SYNTAX
  18                 RULES:
  19                 $(sed -ne "s/^rule_\(${hidden:+[^_]}[^ ]*\) () {\( *#.*\|\)/  \1\2/p" "$tool"/etc/vm.sh "$0")
  20                 ENVIRONMENT:
  21                   TRACE # affiche les commandes avant leur exécution
  22                 $(sed -ne 's/^readonly \([^ ][^ =]*\).*}\( *#.*\|\)$/\t$\1\2/p' "$tool"/etc/vm.sh "$0")
  23                 EOF
  24  }
  25
  26 rule_git_configure () { # DESCRIPTION: configure ./.git correctement
  27         (
  28         cd "$tool"
  29         git remote rm host || true
  30         git remote add host $vm_host:tool/vm
  31         git config --replace remote.host.push HEAD:refs/remotes/master
  32         git remote rm hosted || true
  33         git remote add hosted root@$vm_fqdn:tool/vm
  34         git config --replace remote.hosted.push HEAD:refs/remotes/master
  35         )
  36  }
  37 rule_git_push () { # SYNTAX: {host|hosted} $git_push_options
  38         (
  39         cd "$tool"
  40         local remote=${1#remote=}; shift
  41         GIT_SSH=./lib/ssh git push -v "$remote" "$@"
  42         info "penser à faire : vm_hosted git_reset"
  43         )
  44  }
  45
  46 rule_ssh () {
  47         "$tool"/lib/ssh $vm_fqdn "$@"
  48  }
  49 rule_mosh () {
  50         mosh --ssh="$tool/lib/ssh $*" $vm_fqdn
  51  }
  52 rule__ssh_known_hosts_update () {
  53         rule ssh \
  54          -o StrictHostKeyChecking=no \
  55          -o CheckHostIP=no \
  56          -o HashKnownHosts=no \
  57          whoami
  58  }
  59 rule_luks_key_send () { # NOTE: envoie la clef de déchiffrement des partitions au démarrage de la VM.
  60         gpg --decrypt var/sec/luks/$vm_fqdn.key.gpg |
  61         "$tool"/lib/ssh root@$vm_fqdn "$@" \
  62          -o CheckHostIP=no \
  63          -o HostKeyAlias=init.$vm_fqdn \
  64          tee /lib/cryptsetup/passfifo \>/dev/null
  65  }
  66 rule_luks_key_backup () { # NOTE: sauvegarde localement les entêtes des partitions chiffrées. ENVIRONMENT: $gpg_recipient
  67         for part in root var home
  68          do
  69                 mkdir -p var/sec/luks
  70                 rule ssh -l root ' \
  71                         set -e -f -u;
  72                         exec 2>/dev/null;
  73                         tmp=$(mktemp -t "luks.'"$part"'.XXXXXXXX.tmp" --dry-run);
  74                         cryptsetup luksHeaderBackup >/dev/null \
  75                          /dev/'"$vm_lvm_vg"'/'"$vm_lvm_lv"'_'"$part"' \
  76                          --header-backup-file "$tmp"; \
  77                         cat "$tmp";
  78                         shred >/dev/null --remove "$tmp"; \
  79                  ' |
  80                 gpg --encrypt --recipient "${gpg_recipient:-$USER@}" \
  81                  -o var/sec/luks/${vm_lvm_lv}_${part}.luks.gpg
  82          done
  83  }
  84
  85 rule=${1:-help}
  86 ${1+shift}
  87 case $rule in
  88  (help);;
  89  (*)
  90         assert 'test ! "$(hostname --fqdn)" = "$vm_fqdn"' vm_fqdn
  91         assert 'test ! "$(hostname --fqdn)" = "$vm_host"' vm_host
  92         ;;
  93  esac
  94 rule $rule "$@"