create-user

   1 #!/bin/bash -ex
   2
   3 # MUST be executed:
   4 #  - on deleuze
   5 #  - as a user with an /etc/sudoers line
   6 #  - member of "wheel" unix group on deleuze
   7 #  - while holding tickets for a user who can 'ssh -K' to mire
   8 #     - and is a member of "wheel" on mire
   9 #  - while holding tokens for a user who is:
  10 #     - a member of system:administrator
  11 #     - listed in 'bos listusers deleuze'
  12 #  - and who has been set up with Domtool admin privileges by:
  13 #     - running 'domtool-adduser $USER' while holding AFS admin tokens as
  14 #       someone who is already a Domtool admin
  15 #     - running 'domtool-admin grant $USER priv all' as someone who is already a
  16 #       Domtool admin
  17 #       (To bootstrap yourself into admindom:
  18 #         1. Run '/etc/init.d/domtool-server stop' on deleuze.
  19 #         2. Run '/etc/init.d/domtool-slave stop' on all Domtool slave machines
  20 #            (e.g., mire).
  21 #         3. Edit ~domtool/acl, following the example of adamc_admin to grant
  22 #             yourself 'priv all'.
  23 #         4. Run '/etc/init.d/domtool-server start' on deleuze.
  24 #         5. Run '/etc/init.d/domtool-slave start' on all Domtool slave
  25 #            machines.
  26 #         6. Run 'domtool-adduser' as above.)
  27
  28 USER=$1
  29
  30 export PATH=$PATH:/afs/hcoop.net/common/bin/
  31
  32 if test -z "$USER"; then
  33         echo "Invoke as create-user <USERNAME>"
  34         exit 1
  35 fi
  36
  37 #
  38 # Helper functions
  39 #
  40
  41 # Run a command on both mire and deleuze; assumes that no escaping is
  42 # needed.
  43 function mire_and_deleuze() {
  44     $*
  45     ssh mire.hcoop.net $*
  46 }
  47
  48 #
  49 # Kerberos principals
  50 # (creat kerberos principals: fred, fred/cgi, fred/mailfilter)
  51 #
  52
  53 # We use -randkey for user's main principal as well, to make sure that
  54 # the creation process does not continue without having a main
  55 # principal. (But you who want to set password for a user, don't
  56 # worry - we'll invoke cpw later, so that it has the same effect
  57 # as setting password right now - while it is more error tolerant).
  58
  59 sudo kadmin.local -p root/admin -q "ank -policy user -randkey +requires_preauth $USER@HCOOP.NET"
  60 sudo kadmin.local -p root/admin -q "modprinc -maxlife 1day $USER@HCOOP.NET"
  61 sudo kadmin.local -p root/admin -q "ank -policy daemon -randkey +requires_preauth $USER/daemon@HCOOP.NET"
  62
  63 #
  64 # Create AFS users corresponding to krb5 principals.
  65 # (fred/cgi principal == fred.cgi AFS user)
  66 #
  67
  68 pts cu $USER || true
  69 ID=`pts examine $USER | head -n1 | sed 's_.*, id: *__' | sed 's_,.*__'`
  70 pts cu $USER.daemon || true
  71 ID_DAEMON=`pts examine $USER.daemon | head -n1 | sed 's_.*, id: *__' | sed 's_,.*__'`
  72
  73
  74 #
  75 # Construct various paths for later perusal.
  76 #
  77
  78 # (If it's not clear, for user fred, PATHBITS = f/fr/fred)
  79 PATHBITS=`echo $USER | head -c 1`/`echo $USER | head -c 2`/$USER
  80 HOMEPATH=/afs/hcoop.net/user/$PATHBITS
  81 MAILPATH=/afs/hcoop.net/common/email/$PATHBITS
  82 DBPATH=/afs/hcoop.net/common/.databases/$PATHBITS
  83 PGDIR=$DBPATH/postgres
  84 MYSQLDIR=$DBPATH/mysql
  85
  86
  87 #
  88 # Create LDAP entries. (With the whole libnss-ptdb, I kind of
  89 # lost the idea of what I want to do with LDAP, but we'll
  90 # see with time how well it integrates...)
  91 # The ID returned from AFS is important here, we want to make
  92 # sure those IDs match.
  93 #
  94
  95 # USER entry
  96 echo "
  97 dn: uid=$USER,ou=People,dc=hcoop,dc=net
  98 objectClass: top
  99 objectClass: person
 100 objectClass: posixAccount
 101 cn: $USER
 102 uid: $USER
 103 gidNumber: $ID
 104 sn: $USER
 105 host: abulafia
 106 host: mire
 107
 108 dn: cn=$USER,ou=Group,dc=hcoop,dc=net
 109 objectClass: top
 110 objectClass: posixGroup
 111 cn: $USER
 112 gidNumber: $ID
 113 memberUid: $USER
 114 " | sudo ldapadd -x -D cn=admin,dc=hcoop,dc=net -y /etc/ldap.secret || true
 115
 116 # USER.daemon entry
 117 echo "
 118 dn: uid=$USER.daemon,ou=People,dc=hcoop,dc=net
 119 objectClass: top
 120 objectClass: person
 121 objectClass: posixAccount
 122 cn: $USER.daemon
 123 uid: $USER.daemon
 124 gidNumber: $ID_DAEMON
 125 sn: $USER.daemon
 126
 127 dn: cn=$USER.daemon,ou=Group,dc=hcoop,dc=net
 128 objectClass: top
 129 objectClass: posixGroup
 130 cn: $USER.daemon
 131 gidNumber: $ID_DAEMON
 132 memberUid: $USER.daemon
 133 " | sudo ldapadd -x -D cn=admin,dc=hcoop,dc=net -y /etc/ldap.secret || true
 134
 135
 136 #
 137 # Export .mailfilter and .cgi keys to a keytab file
 138 #
 139
 140 # create a daemon keytab (used by /etc/exim4/get-token)
 141 # *only* if it does not exist!
 142 test -e /etc/keytabs/user.daemon/$USER || \
 143   sudo kadmin.local -p root/admin -q "ktadd -k /etc/keytabs/user.daemon/$USER $USER/daemon@HCOOP.NET"
 144
 145 # Properly chown/mod keytab files (must be $USER:www-data)
 146 sudo chown $USER:www-data /etc/keytabs/user.daemon/$USER
 147 sudo chmod 440            /etc/keytabs/user.daemon/$USER
 148
 149 # rsync keytabs to mire
 150 (cd /etc/keytabs
 151    sudo tar clpf - user.daemon/$USER | \
 152      ssh mire.hcoop.net cd /etc/keytabs\; sudo tar xlpf -)
 153
 154 #
 155 # Create/mount/set-perms on user's volumes (home, mail, databases, logs)
 156 #
 157
 158 # HOME VOLUME
 159 vos examine user.$USER 2>/dev/null || \
 160   vos create deleuze.hcoop.net /vicepa user.$USER -maxquota 400000
 161 mkdir -p `dirname $HOMEPATH`
 162 fs ls $HOMEPATH || test -L $HOMEPATH || fs mkm $HOMEPATH user.$USER
 163 chown $USER:nogroup $HOMEPATH
 164 fs sa $HOMEPATH $USER            all
 165 fs sa $HOMEPATH system:anyuser   l
 166
 167 # Apache logs
 168 mkdir -p $HOMEPATH/.logs
 169 chown $USER:nogroup $HOMEPATH/.logs
 170 mkdir -p $HOMEPATH/.logs/apache
 171 chown $USER:nogroup $HOMEPATH/.logs/apache
 172 fs sa $HOMEPATH/.logs/apache $USER.daemon rlwidk
 173 mkdir -p $HOMEPATH/.logs/mail
 174 fs sa $HOMEPATH/.logs/mail $USER.daemon rlwidk
 175 chown $USER:nogroup $HOMEPATH/.logs/mail
 176
 177 # public_html
 178 mkdir -p $HOMEPATH/public_html
 179 chown $USER:nogroup $HOMEPATH/public_html
 180 fs sa $HOMEPATH/public_html system:anyuser rl
 181
 182 # .procmail.d
 183 mkdir -p $HOMEPATH/.procmail.d
 184 chown $USER:nogroup $HOMEPATH/.procmail.d
 185 fs sa $HOMEPATH/.procmail.d system:anyuser rl
 186
 187 # .public
 188 mkdir -p $HOMEPATH/.public/
 189 chown $USER:nogroup $HOMEPATH/.public
 190 fs sa $HOMEPATH/.public system:anyuser rl
 191
 192 # .domtool
 193 mkdir -p $HOMEPATH/.public/.domtool
 194 chown $USER:nogroup $HOMEPATH/.public/.domtool
 195 test -e $HOMEPATH/.domtool || \
 196     test -L $HOMEPATH/.domtool || \
 197         ln -s $HOMEPATH/.public/.domtool $HOMEPATH/.domtool
 198
 199 # MAIL VOLUME
 200 vos examine mail.$USER 2>/dev/null || \
 201   vos create deleuze.hcoop.net /vicepa mail.$USER -maxquota 400000
 202 mkdir -p `dirname $MAILPATH`
 203 fs ls $MAILPATH || fs mkm $MAILPATH         mail.$USER
 204 fs ls $HOMEPATH/Maildir || fs mkm $HOMEPATH/Maildir mail.$USER
 205 chown $USER:nogroup $MAILPATH
 206 chown $USER:nogroup $HOMEPATH/Maildir
 207 fs sa $MAILPATH $USER        all
 208 fs sa $MAILPATH $USER.daemon all
 209
 210 # Set up shared SpamAssassin folder
 211 if test -f $HOMEPATH/Maildir/shared-maildirs; then
 212     # Deal with case where user rsync'd their Maildir from fyodor
 213     pattern='^SpamAssassin      /home/spamd'
 214     file=$HOMEPATH/Maildir/shared-maildirs
 215     if grep $pattern $file; then
 216         sed -i -r -e \
 217             's!^(SpamAssassin   )/home/spamd!\1/var/local/lib/spamd!1' \
 218             $file
 219     fi
 220
 221 # This does not yet seem to be needed, and it triggers an AFS issue,
 222 # so I've commented it out --mwolson.
 223 #
 224 #     NOTIFY=no
 225 #     for dir in $HOMEPATH/Maildir/shared-folders/SpamAssassin/*; do
 226 #         if ! test -d $dir; then
 227 #             NOTIFY=yes
 228 #         else
 229 #             dest=/var/local/lib/spamd/Maildir/.$(basename $dir)
 230 #             if test "$(readlink $dir/shared)" != "$dest"; then
 231 #                 ln -sf $dest $dir/shared
 232 #             fi
 233 #         fi
 234 #     done
 235 #     if test $NOTIFY = yes; then
 236 #         # This is probably going overboard, but oh well
 237 #         echo "$USER needs assistance on their shared spam dir" | \
 238 #             pagsh -c mail -s "[create-user] $USER needs assistance" \
 239 #               -e -a "From: admins@deleuze.hcoop.net" mwolson_admin
 240 #     fi
 241
 242 else
 243     maildirmake --add SpamAssassin=/var/local/lib/spamd/Maildir \
 244         $HOMEPATH/Maildir
 245 fi
 246
 247 # DATABASE VOLUME
 248 if ! vos examine db.$USER >/dev/null 2>/dev/null; then
 249   mkdir -p `dirname /afs/.hcoop.net/common/.databases/$PATHBITS`
 250   vos create -server afs -partition a -name db.$USER -maxquota 400000
 251   fs mkmount -dir /afs/.hcoop.net/common/.databases/$PATHBITS -vol db.$USER -rw
 252   vos release common.databases
 253   fs sa -dir $DBPATH -acl system:postgres l
 254   fs sa -dir $DBPATH -acl system:mysql    l
 255   fs sa -dir $DBPATH -acl system:backup   rl
 256 fi
 257
 258 # Create postgres user and tablespace placeholder within volume
 259 if ! test -d $PGDIR; then
 260   mkdir -p $PGDIR
 261   chown postgres:postgres $PGDIR
 262   fs sa -dir $PGDIR -acl system:postgres write
 263
 264  sudo -u postgres psql -c "CREATE TABLESPACE user_$USER OWNER postgres LOCATION '$PGDIR'" template1
 265 fi
 266
 267 # Create mysql user and databases placeholder within volume
 268 mkdir -p $MYSQLDIR
 269 chown mysql:mysql $MYSQLDIR
 270 fs sa -dir $MYSQLDIR -acl system:mysql  write
 271
 272
 273 #
 274 # Mount points for backup volumes
 275 #
 276
 277 mkdir -p `dirname /afs/hcoop.net/.old/user/$PATHBITS`
 278 mkdir -p `dirname /afs/hcoop.net/.old/mail/$PATHBITS`
 279 fs ls /afs/hcoop.net/.old/user/$PATHBITS || \
 280   fs mkm /afs/hcoop.net/.old/user/$PATHBITS user.$USER.backup
 281 fs ls /afs/hcoop.net/.old/mail/$PATHBITS || \
 282   fs mkm /afs/hcoop.net/.old/mail/$PATHBITS mail.$USER.backup
 283 vos release old
 284
 285 # technically this might not be necessary, but for good measure...
 286 vos syncserv deleuze
 287 vos syncvldb deleuze
 288
 289 # refresh volume location cache (takes ~2hrs otherwise)
 290 mire_and_deleuze fs checkvolumes
 291
 292 #
 293 # Non-AFS files and directories
 294 #
 295
 296 # Make per-user apache DAV lock directory -- the directory must be
 297 # both user and group-writable, which is silly.
 298 mire_and_deleuze sudo mkdir -p /var/lock/apache2/dav/$USER
 299 mire_and_deleuze sudo chown $USER:www-data /var/lock/apache2/dav/$USER
 300 mire_and_deleuze sudo chmod ug=rwx,o= /var/lock/apache2/dav/$USER
 301
 302 #
 303 # Domtool integration
 304 #
 305
 306 domtool-adduser $USER