vm_remote

   1 #!/bin/sh
   2 set -e -f ${DRY_RUN:+-n} -u
   3 tool=$(cd "${0%/*}"; cd -)
   4 . "$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" "$@"
  43         )
  44  }
  45
  46 rule_ssh () {
  47         "$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_service_key_send_deciphered () { # SYNTAX: $service $remote_destination ${ssh_options-}
  61         local service="$1"; shift
  62         local remote_destination="$1"; shift
  63         gpg --decrypt "var/sec/x509/$vm_domainname/$service/key.pass.gpg" |
  64         openssl rsa -passin 'stdin' \
  65          -in  "var/sec/x509/$vm_domainname/$service/key.pem" \
  66          -out '/dev/stdout' |
  67         rule ssh "$@"  ' \
  68                 install -m 400 -o root -g root \
  69                  /dev/stdin \
  70                  '"$remote_destination"' \
  71          '
  72  }
  73
  74 rule_luks_key_send () { # DESCRIPTION: envoie la clef de déchiffrement des partitions au démarrage de la VM.
  75         gpg --decrypt var/sec/luks/$vm_fqdn.key.gpg |
  76         "$tool"/lib/ssh root@$vm_fqdn "$@" \
  77          -o CheckHostIP=no \
  78          -o HostKeyAlias=init.$vm_fqdn \
  79          tee /lib/cryptsetup/passfifo \>/dev/null
  80  }
  81 rule_luks_key_backup () { # SYNTAX: ${gpg_options:---recipient $USER@} DESCRIPTION: sauvegarde localement les entêtes des partitions chiffrées.
  82         test "${*+set}" || set -- --recipient "$USER@"
  83         for part in root var home
  84          do
  85                 mkdir -p var/sec/luks
  86                 rule ssh -l root ' \
  87                         set -e -f -u;
  88                         exec 2>/dev/null;
  89                         tmp=$(mktemp -t "luks.'"$part"'.XXXXXXXX.tmp" --dry-run);
  90                         cryptsetup luksHeaderBackup >/dev/null \
  91                          /dev/'"$vm_lvm_vg"'/'"$vm_lvm_lv"'_'"$part"' \
  92                          --header-backup-file "$tmp"; \
  93                         cat "$tmp";
  94                         shred >/dev/null --remove "$tmp"; \
  95                  ' |
  96                 gpg "$@" --encrypt \
  97                  -o var/sec/luks/${vm_lvm_lv}_${part}.luks.gpg
  98          done
  99  }
 100
 101 rule_apache2_key_send () {
 102         local -; set +f
 103         for conf in "$tool"/etc/apache2/site.d/*/VirtualHost.conf
 104          do conf=${conf#"$tool"/etc/apache2/site.d/}
 105                 local port domain
 106                 IFS=. read -r port domain <<-EOF
 107                         ${conf%\/VirtualHost\.conf}
 108                         EOF
 109                 assert 'test "${port:+set}"'
 110                 assert 'test "${domain:+set}"'
 111                 local site="$port.$domain"
 112                 case $port in
 113                  (443)
 114                         rule ssh -l root ' \
 115                                 sudo install -d -m 770 -o '"$user"' -g '"$user"' \
 116                                  /etc/apache2 \
 117                                  /etc/apache2/site.d/'"$site"' \
 118                                  /etc/apache2/site.d/'"$site"'/x509; \
 119                                 sudo install -m 644 -o '"$user"' -g '"$user"' /dev/stdin \
 120                                  /etc/apache2/site.d/'"$site"'/x509/.gitignore <<-EOF
 121                                         key.pem
 122                                         EOF
 123                          '
 124                         rule _x509_service_key_send_deciphered $service \
 125                          /etc/apache2/"$site"/x509/key.pem -l root "$@"
 126                         ;;
 127                  esac
 128          done
 129  }
 130 rule_dovecot_key_send () {
 131         rule ssh -l root ' \
 132                 sudo install -d -m 770 -o root -g root \
 133                  /etc/dovecot/'"$vm_domainname"'/ \
 134                  /etc/dovecot/'"$vm_domainname"'/imap \
 135                  /etc/dovecot/'"$vm_domainname"'/imap/x509 ; \
 136                 sudo install -m 644 -o root -g root /dev/stdin \
 137                  /etc/dovecot/'"$vm_domainname"'/imap/x509/.gitignore <<-EOF
 138                         key.pem
 139                         EOF
 140          '
 141         rule _x509_service_key_send_deciphered imap \
 142          /etc/dovecot/$vm_domainname/$service/x509/key.pem -l root "$@"
 143  }
 144 rule_gitolite_configure () {
 145         (
 146         cd "$tool"/etc/gitolite
 147         GIT_SSH=../../lib/ssh \
 148         ssh-agent sh -c ' \
 149                 SSH_ASKPASS='"$tool"'/lib/ssh-pass \
 150                 SSH_ID=git \
 151                 ssh-add '"$tool"'/var/sec/ssh/git </dev/null && \
 152                 git push -v origin '"$*"
 153         )
 154  }
 155 rule_nginx_key_send () {
 156         local -; set +f
 157         for conf in "$tool"/etc/nginx/site.d/*/server.conf
 158          do conf=${conf#"$tool"/etc/nginx/site.d/}
 159                 local port domain
 160                 IFS=. read -r port domain <<-EOF
 161                         ${conf%\/server\.conf}
 162                         EOF
 163                 assert 'test "${port:+set}"'
 164                 assert 'test "${domain:+set}"'
 165                 local site="$port.$domain"
 166                 case $port in
 167                  (443)
 168                         rule ssh -l root ' \
 169                                 sudo install -d -m 770 -o root -g root \
 170                                  /etc/nginx \
 171                                  /etc/nginx/site.d \
 172                                  /etc/nginx/site.d/'"$site"' \
 173                                  /etc/nginx/site.d/'"$site"'/x509; \
 174                                 sudo install -m 644 -o root -g root /dev/stdin \
 175                                  /etc/nginx/site.d/'"$site"'/x509/.gitignore <<-EOF
 176                                         key.pem
 177                                         EOF
 178                          '
 179                         rule _x509_service_key_send_deciphered $service \
 180                          /etc/nginx/"$site"/x509/key.pem -l root "$@"
 181                         ;;
 182                  esac
 183          done
 184  }
 185 rule_postfix_key_send () {
 186         rule ssh -l root ' \
 187                 sudo install -d -m 770 -o root -g root \
 188                  /etc/postfix/'"$vm_domainname"'/ \
 189                  /etc/postfix/'"$vm_domainname"'/smtpd \
 190                  /etc/postfix/'"$vm_domainname"'/smtpd/x509; \
 191                 sudo install -m 644 -o root -g root /dev/stdin \
 192                  /etc/postfix/'"$vm_domainname"'/smtp/x509/.gitignore <<-EOF
 193                         key.pem
 194                         EOF
 195                 sudo install -m 644 -o root -g root /dev/stdin \
 196                  /etc/postfix/'"$vm_domainname"'/smtpd/x509/.gitignore <<-EOF
 197                         key.pem
 198                         EOF
 199          '
 200         rule _x509_service_key_send_deciphered smtpd \
 201          /etc/postfix/$vm_domainname/smtpd/x509/key.pem -l root "$@"
 202  }
 203
 204 rule=${1:-help}
 205 ${1+shift}
 206 case $rule in
 207  (help);;
 208  (*)
 209         assert 'test ! "$(hostname --fqdn)" = "$vm_fqdn"' vm_fqdn
 210         assert 'test ! "$(hostname --fqdn)" = "$vm_host"' vm_host
 211         ;;
 212  esac
 213 rule $rule "$@"