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         git submodule update --init
  36         )
  37  }
  38 rule_git_push () { # SYNTAX: {host|hosted} $git_push_options
  39         (
  40         cd "$tool"
  41         local remote=${1#remote=}; shift
  42         GIT_SSH=./lib/ssh git push -v "$remote" "$@"
  43         info "penser à faire : vm_hosted git_reset"
  44         )
  45  }
  46
  47 rule_ssh () {
  48         "$tool"/lib/ssh $vm_fqdn "$@"
  49  }
  50 rule_mosh () {
  51         mosh --ssh="$tool/lib/ssh $*" $vm_fqdn
  52  }
  53 rule__ssh_known_hosts_update () {
  54         rule ssh \
  55          -o StrictHostKeyChecking=no \
  56          -o CheckHostIP=no \
  57          -o HashKnownHosts=no \
  58          whoami
  59  }
  60
  61 rule__x509_service_key_send_deciphered () { # SYNTAX: $service $remote_destination ${ssh_options-}
  62         local service="$1"; shift
  63         local remote_destination="$1"; shift
  64         gpg --decrypt "var/sec/x509/service/$service/key.pass.gpg" |
  65         openssl rsa -passin 'stdin' \
  66          -in  "var/sec/x509/service/$service/key.pem" \
  67          -out '/dev/stdout' |
  68         rule ssh "$@"  ' \
  69                 install -m 400 -o root -g root \
  70                  /dev/stdin \
  71                  "'"$remote_destination"'" \
  72          '
  73  }
  74
  75 rule_luks_key_send () { # DESCRIPTION: envoie la clef de déchiffrement des partitions au démarrage de la VM.
  76         gpg --decrypt var/sec/luks/$vm_fqdn.key.gpg |
  77         "$tool"/lib/ssh root@$vm_fqdn "$@" \
  78          -o CheckHostIP=no \
  79          -o HostKeyAlias=init.$vm_fqdn \
  80          tee /lib/cryptsetup/passfifo \>/dev/null
  81  }
  82 rule_luks_key_backup () { # SYNTAX: ${gpg_options:---recipient $USER@} DESCRIPTION: sauvegarde localement les entêtes des partitions chiffrées.
  83         test "${*+set}" || set -- --recipient "$USER@"
  84         for part in root var home
  85          do
  86                 mkdir -p var/sec/luks
  87                 rule ssh -l root ' \
  88                         set -e -f -u;
  89                         exec 2>/dev/null;
  90                         tmp=$(mktemp -t "luks.'"$part"'.XXXXXXXX.tmp" --dry-run);
  91                         cryptsetup luksHeaderBackup >/dev/null \
  92                          /dev/'"$vm_lvm_vg"'/'"$vm_lvm_lv"'_'"$part"' \
  93                          --header-backup-file "$tmp"; \
  94                         cat "$tmp";
  95                         shred >/dev/null --remove "$tmp"; \
  96                  ' |
  97                 gpg "$@" --encrypt \
  98                  -o var/sec/luks/${vm_lvm_lv}_${part}.luks.gpg
  99          done
 100  }
 101 rule_dovecot_key_send () {
 102         rule ssh -l root ' \
 103                 sudo install -d -m 770 -o root -g root \
 104                  /etc/dovecot/'"$vm_domainname"'/ \
 105                  /etc/dovecot/'"$vm_domainname"'/imap \
 106                  /etc/dovecot/'"$vm_domainname"'/imap/x509 ; \
 107                 sudo install -m 644 -o root -g root /dev/stdin \
 108                  /etc/dovecot/'"$vm_domainname"'/imap/x509/.gitignore <<-EOF
 109                         key.pem
 110                         EOF
 111          '
 112         rule _x509_service_key_send_deciphered imap \
 113          /etc/dovecot/$vm_domainname/imap/x509/key.pem -l root "$@"
 114  }
 115 rule_postfix_key_send () {
 116         rule ssh -l root ' \
 117                 sudo install -d -m 770 -o root -g root \
 118                  /etc/postfix/'"$vm_domainname"'/ \
 119                  /etc/postfix/'"$vm_domainname"'/smptd \
 120                  /etc/postfix/'"$vm_domainname"'/smptd/x509; \
 121                 sudo install -m 644 -o root -g root /dev/stdin \
 122                  /etc/postfix/'"$vm_domainname"'/smtp/x509/.gitignore <<-EOF
 123                         key.pem
 124                         EOF
 125                 sudo install -m 644 -o root -g root /dev/stdin \
 126                  /etc/postfix/'"$vm_domainname"'/smtpd/x509/.gitignore <<-EOF
 127                         key.pem
 128                         EOF
 129          '
 130         rule _x509_service_key_send_deciphered smtpd \
 131          /etc/postfix/$vm_domainname/smtpd/x509/key.pem -l root "$@"
 132  }
 133
 134 rule=${1:-help}
 135 ${1+shift}
 136 case $rule in
 137  (help);;
 138  (*)
 139         assert 'test ! "$(hostname --fqdn)" = "$vm_fqdn"' vm_fqdn
 140         assert 'test ! "$(hostname --fqdn)" = "$vm_host"' vm_host
 141         ;;
 142  esac
 143 rule $rule "$@"