vm_remote

   1 #!/bin/sh
   2 set -e -f ${DRY_RUN:+-n} -u
   3 tool=$(readlink -e "${0%/*}")
   4 . "$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:src/vm
  31         git config --replace remote.host.push HEAD:refs/remotes/master
  32         git remote rm hosted || true
  33         git remote add hosted $vm_fqdn:src/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" "$@"
  43         )
  44  }
  45
  46 rule_ssh () {
  47         "$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
  60 rule__x509_site_key_decrypt () { # SYNTAX: $site
  61         local site="$1"; shift
  62         gpg --decrypt "$tool"/var/sec/x509/"$site"/key.pass.gpg |
  63         openssl rsa -passin 'stdin' \
  64          -in  var/sec/x509/"$site"/key.pem \
  65          -out '/dev/stdout'
  66  }
  67
  68 rule_luks_key_send () { # DESCRIPTION: envoie la clef de déchiffrement des partitions au démarrage de la VM.
  69         gpg --decrypt var/sec/luks/$vm_fqdn.key.gpg |
  70         "$tool"/lib/ssh root@$vm_fqdn "$@" \
  71          -o CheckHostIP=no \
  72          -o HostKeyAlias=init.$vm_fqdn \
  73          tee /lib/cryptsetup/passfifo \>/dev/null
  74  }
  75 rule_luks_key_backup () { # SYNTAX: ${gpg_options:---recipient $USER@} DESCRIPTION: sauvegarde localement les entêtes des partitions chiffrées.
  76         test "${*+set}" || set -- --recipient "$USER@"
  77         for part in root var home
  78          do
  79                 mkdir -p var/sec/luks
  80                 rule ssh -l root ' \
  81                         set -e -f -u;
  82                         exec 2>/dev/null;
  83                         tmp=$(mktemp -t "luks.'"$part"'.XXXXXXXX.tmp" --dry-run);
  84                         cryptsetup luksHeaderBackup >/dev/null \
  85                          /dev/'"$vm_lvm_vg"'/'"$vm_lvm_lv"'_'"$part"' \
  86                          --header-backup-file "$tmp"; \
  87                         cat "$tmp";
  88                         shred >/dev/null --remove "$tmp"; \
  89                  ' |
  90                 gpg "$@" --encrypt \
  91                  -o var/sec/luks/${vm_lvm_lv}_${part}.luks.gpg
  92          done
  93  }
  94
  95 rule_apache2_key_send () {
  96         local -; set +f
  97         for conf in "$tool"/etc/nginx/site.d/*/key_send
  98          do conf=${conf#"$tool"/etc/nginx/site.d/}
  99                 local site=${conf%/key_send}
 100                 rule _x509_site_key_decrypt \
 101                  "$(cat "$tool"/etc/apache2/site.d/"$site"/x509_host)" |
 102                 rule ssh -l root ' \
 103                         sudo install -d -m 770 -o '"$user"' -g '"$user"' \
 104                          /etc/apache2 \
 105                          /etc/apache2/x509.d \
 106                          /etc/apache2/x509.d/'"$site"'; \
 107                         sudo install -m 644 -o '"$user"' -g '"$user"' /dev/stdin \
 108                          /etc/apache2/x509.d/'"$site"'/.gitignore <<-EOF
 109                                 key.pem
 110                                 EOF
 111                         sudo install -m 400 -o root -g root \
 112                          /dev/stdin \
 113                          /etc/apache2/x509.d/'"'$site'"'/key.pem
 114                  '
 115          done
 116  }
 117 rule_dovecot_key_send () {
 118         rule _x509_site_key_decrypt imap."$vm_domainname" |
 119         rule ssh -l root ' \
 120                 sudo install -d -m 770 -o root -g root \
 121                  /etc/dovecot/'"$vm_domainname"'/ \
 122                  /etc/dovecot/'"$vm_domainname"'/imap \
 123                  /etc/dovecot/'"$vm_domainname"'/imap/x509 ; \
 124                 sudo install -m 644 -o root -g root /dev/stdin \
 125                  /etc/dovecot/'"$vm_domainname"'/imap/x509/.gitignore <<-EOF
 126                         key.pem
 127                         EOF
 128                 sudo install -m 400 -o root -g root \
 129                  /dev/stdin \
 130                  /etc/dovecot/"$vm_domainname"/imap/x509/key.pem
 131          '
 132  }
 133 rule_gitolite_git () {
 134         (
 135         cd "$tool"/etc/gitolite
 136         GIT_SSH=../../lib/ssh \
 137         ssh-agent sh -c ' \
 138                 SSH_ASKPASS='"$tool"'/lib/ssh-pass \
 139                 SSH_ID=git \
 140                 ssh-add '"$tool"'/var/sec/ssh/git </dev/null && \
 141                 git '"$*"
 142         )
 143  }
 144 rule_nginx_configure () {
 145         local -; set +f
 146         for conf in "$tool"/etc/nginx/site.d/*/site.conf
 147          do conf=${conf#"$tool"/etc/nginx/site.d/}
 148                 local site="${conf%/site.conf}"
 149                 if test -f "$tool"/etc/nginx/site.d/"$site"/x509_host
 150                  then
 151                         rule _x509_site_key_decrypt \
 152                          "$(cat "$tool"/etc/nginx/site.d/"$site"/x509_host)" |
 153                         rule ssh -l root ' \
 154                                 sudo install -d -m 770 -o root -g root \
 155                                  /etc/nginx \
 156                                  /etc/nginx/x509.d \
 157                                  /etc/nginx/x509.d/'"'$site'"'; \
 158                                 sudo install -m 644 -o root -g root /dev/stdin \
 159                                  /etc/nginx/x509.d/'"'$site'"'/.gitignore <<-EOF
 160                                         key.pem
 161                                         EOF
 162                                 sudo install -m 400 -o root -g root /dev/stdin \
 163                                  /etc/nginx/x509.d/'"'$site'"'/key.pem
 164                          '
 165                  fi
 166                 test ! -r "$tool"/etc/nginx/site.d/"$site"/remote.sh ||
 167                 .         "$tool"/etc/nginx/site.d/"$site"/remote.sh
 168          done
 169  }
 170 rule_postfix_key_send () {
 171         rule _x509_site_key_decrypt smtpd."$vm_domainname" |
 172         rule ssh -l root ' \
 173                 sudo install -d -m 770 -o root -g root \
 174                  /etc/postfix/'"$vm_domainname"'/ \
 175                  /etc/postfix/'"$vm_domainname"'/smtpd \
 176                  /etc/postfix/'"$vm_domainname"'/smtpd/x509; \
 177                 sudo install -m 644 -o root -g root /dev/stdin \
 178                  /etc/postfix/'"$vm_domainname"'/smtp/x509/.gitignore <<-EOF
 179                         key.pem
 180                         EOF
 181                 sudo install -m 644 -o root -g root /dev/stdin \
 182                  /etc/postfix/'"$vm_domainname"'/smtpd/x509/.gitignore <<-EOF
 183                         key.pem
 184                         EOF
 185                 install -m 400 -o root -g root \
 186                  /dev/stdin \
 187                  /etc/postfix/'"'$vm_domainname'"'/smtpd/x509/key.pem
 188          '
 189  }
 190
 191 rule=${1:-help}
 192 ${1+shift}
 193 case $rule in
 194  (help);;
 195  (*)
 196         assert 'test ! "$(hostname --fqdn)" = "$vm_fqdn"' vm_fqdn
 197         assert 'test ! "$(hostname --fqdn)" = "$vm_host"' vm_host
 198         ;;
 199  esac
 200 rule $rule "$@"