source: branches/fc11-dev/server/doc/install-howto.sh @ 1248

Last change on this file since 1248 was 1248, checked in by geofft, 13 years ago
install-howto: Explain how to beat your head against a wall
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1# This document is a how-to for installing a Fedora scripts.mit.edu server.
2
3set -e -x
4
5[ -e /scripts-boot-count ] || echo 0 > /scripts-boot-count
6
7source_server="old-faithful.mit.edu"
8
9boot=${1:$(cat /scripts-boot-count)}
10
11# XXX: let 'branch' be the current svn branch you are on
12
13doreboot() {
14    echo $(( $boot + 1 )) > /scripts-boot-count;
15    shutdown -r now "Rebooting for step $(cat /scripts-boot-count)"
16}
17
18YUM() {
19    NSS_NONLOCAL_IGNORE=1 yum "$@"
20}
21
22# Helper files for the install are located in server/fedora/config.
23
24# Start with a normal install of Fedora.
25
26if [ $boot = 0 ]; then
27# When the initial configuration screen comes up, under "Firewall
28# configuration", disable the firewall, and under "System services", leave
29# enabled (as of Fedora 9) acpid, anacron, atd, cpuspeed, crond,
30# firstboot, fuse, haldaemon, ip6tables, iptables, irqbalance,
31# kerneloops, mdmonitor, messagebus, microcode_ctl, netfs, network, nscd, ntpd,
32# sshd, udev-post, and nothing else.
33    echo "--disabled" > /etc/sysconfig/system-config-firewall
34    for i in NetworkManager avahi-daemon bluetooth cups isdn nfslock pcscd restorecond rpcbind rpcgssd rpcidmapd sendmail; do
35        chkconfig "$i" off
36    done
37
38# Edit /etc/selinux/config so it has SELINUX=disabled and reboot.
39    sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config
40    doreboot
41fi
42
43if [ $boot = 1 ]; then
44# Create a scripts-build user account, and set up rpm to build in
45# $HOME by doing a
46# cp config/home/scripts-build/.rpmmacros /home/scripts-build/
47# (If you just use the default setup, it will generate packages
48# in /usr/src/redhat.)
49    adduser scripts-build
50
51# Check out the scripts.mit.edu svn repository. Configure svn not to cache
52# credentials.
53
54    YUM install -y subversion
55
56    cd /srv
57    svn co svn://$source_server/$branch repository
58
59    sed -i 's/^(# *)*store-passwords.*/store-passwords = no/' /root/.subversion/config
60    sed -i 's/^(# *)*store-auth-creds.*/store-auth-creds = no/' /root/.subversion/config
61# The same tweaks should be made on /home/scripts-build/.subversion/config
62# once it exists (do something with svn as scripts-build)
63
64    chown -R scripts-build /srv/repository
65
66# cd to server/fedora in the svn repository.
67    cd /srv/repository/server/fedora
68
69# Run "make install-deps" to install various prereqs.  Nonstandard
70# deps are in /mit/scripts/rpm.
71    YUM install -y make
72    make install-deps
73
74# Install bind
75    YUM install -y bind
76
77# Check out the scripts /etc configuration
78    cd /root
79    svn co svn://scripts.mit.edu/$branch/server/fedora/config/etc etc
80    # backslash to make us not use the alias
81    \cp -a etc /
82
83# NOTE: You will have just lost DNS resolution and the abilit
84# to do password SSH in
85
86    service named start
87    chkconfig named on
88
89# XXX: This sometimes doesn't exist, but it really sucks if it
90# does exist. So check for it.
91# yum remove nss_ldap, because nss-ldapd conflicts with it
92
93# In the case of the Kerberos libraries, you'll be told that
94# there are conflicting files with the 64-bit versions of the packages,
95# which we scriptsify.  You'll have to use --force to install those
96# rpms despite the conflicts.  After doing that, you may want to
97# install the corresponding 64-bit scriptsified versions again, just
98# to be safe in case the 32-bit versions overwrite files that differ.
99# When you try this, it will complain that you already have the same
100# version installed; again, you'll need to use --force to do it anyway.
101
102# We need yumdownloader to force some RPMs
103    # XXX: This might be wrong. Sanity check what packages ou
104    # have when done
105    YUM install -y yum-utils
106    yumdownloader krb5-libs
107    # XXX: These version numbers are hardcoded, need some cli-fu to generalize
108    rpm -i krb5-libs-*.i586.rpm
109    rpm -U --force krb5-libs-*.scripts.1138.x86_64.rpm
110
111# env NSS_NONLOCAL_IGNORE=1 yum install scripts-base
112    YUM install -y scripts-base
113
114# Install mit-zephyr
115    YUM install -y mit-zephyr
116
117# Remember to set NSS_NONLOCAL_IGNORE=1 anytime you're setting up
118# anything, e.g. using yum. Otherwise useradd will query LDAP in a stupid way
119# that makes it hang forever. (This is why we're using YUM, not yum)
120
121# Reload the iptables config to take down the restrictive firewall
122    service iptables restart
123
124# Copy over root's dotfiles from one of the other machines.
125# Perhaps a useful change is to remove the default aliases
126    # On 2009-07-01, the dotfiles to transfer where:
127    #   .bashrc .ldapvirc .screenrc .ssh (<- directory) .vimrc
128    # Trying to scp from server to server won't work, as scp
129    # will attempt to negotiate a server-to-server connection.
130    # Instead, scp to your trusted machine as a temporary file,
131    # and then push to the other server
132
133# Replace rsyslog with syslog-ng by doing:
134    rpm -e --nodeps rsyslog
135    YUM install -y syslog-ng
136    chkconfig syslog-ng on
137
138# Install various dependencies of the scripts system, including
139# glibc-devel.i586 (ezyang: already installed for me),
140# python-twisted-core (ditto), mod_fcgid, nrpe, nagios-plugins-all.
141    YUM install -y mod_fcgid
142    YUM install -y nrpe
143    YUM install -y nagios-plugins-all
144
145# Disable NetworkManager with chkconfig NetworkManager off. Configure
146# networking on the front end and back end, and the routing table to send
147# traffic over the back end. Make sure that chkconfig reports "network" on, so
148# that the network will still be configured at next boot.
149# ezyang: For me, NetworkManager was not installed at this point, and
150# we had already done the basic config for networking front end and
151# back end (because I wanted ssh access, and not just conserver access)
152
153# Fix the openafs /usr/vice/etc <-> /etc/openafs mapping by changing
154#  /usr/vice/etc/cacheinfo to contain:
155#       /afs:/usr/vice/cache:10000000
156# Also fix ThisCell to contain athena.mit.edu in both directories
157    echo "/afs:/usr/vice/cache:10000000" > /usr/vice/etc/cacheinfo
158    # ezyang: ThisCell on b-k and c-w don't have anything special
159    # written here
160
161# Figure out why Zephyr isn't working. Most recently, it was because there
162# was a 64-bit RPM installed; remove it and install Joe's 32-bit one
163    YUM erase -y mit-zephyr
164    # mit-zephyr has a spurious dependency on mit-krb-config
165    yumdownloader mit-zephyr.i386
166    # if deps change, this breaks
167    YUM install -y libXaw.i586 libXext.i586 libXmu.i586 ncurses-libs.i586 readline.i58
168    rpm -i --nodeps mit-zephyr-2.1-6-linux.i386.rpm
169
170# Install the athena-base, athena-lprng, and athena-lprng-misc RPMs
171# from the Athena 9 build (these are present in our yum repo).  Note
172# that you will have to use --nodeps for at least one of the lprng
173# ones because it thinks it needs the Athena hesiod RPM.  It doesn't
174# really.  Before doing this, run it without --nodeps and arrange to
175# install the rest of the things it really does depend on.  This will
176# include a bunch of 32-bit rpms; go ahead and install the .i586 versions
177# of them.
178    YUM install -y athena-base
179    YUM install -y athena-lprng
180    yumdownloader athena-lprng-misc
181    # ezyang: I couldn't find any deps for this that existed in the repos
182    # You might get a "find: `/usr/athena/info': No such file or directory"
183    # error; this is fine
184    rpm -i --nodeps athena-lprng-misc-9.4-0.i386.rpm
185
186# Install the full list of RPMs that users expect to be on the
187# scripts.mit.edu servers.
188
189# ezyang: Running the below I got file conflicts. To fix (since I had
190# botched steps above), I manually compared package lists and installed
191# them.  If you've done the krb5 setup originally correctly, then
192# write down what you had to do here.
193    yumdownloader krb5-devel
194    rpm -i --force krb5-devel-*.i586.rpm
195    rpm -U --force krb5-devel-*.scripts.1138.x86_64.rpm
196    yumdownloader krb5-server
197    rpm -i --force krb5-server-*.scripts.1138.x86_64.rpm
198
199
200# on another server, run:
201rpm -qa --queryformat "%{Name}.%{Arch}\n" | sort > packages.txt
202# arrange for packages.txt to be passed to the server, then run:
203    # notice that yum is not capitalized
204    # Also notice skip-broken
205    cat packages.txt | NSS_NONLOCAL_IGNORE=1 xargs yum install -y --skip-broken
206
207# Check which packages are installed on your new server that are not
208# in the snapshot, and remove ones that aren't needed for some reason
209# on the new machine.  Otherwise, aside from bloat, you may end up
210# with undesirable things for security, like sendmail.
211    rpm -qa --queryformat "%{Name}.%{Arch}\n" | sort > newpackages.txt
212    diff -u packages.txt newpackages.txt  | less
213    # if all went well, you'll probably see multiple kernel versions
214    # as the only diff
215    # ezyang: I got exim installed as another package
216
217# Check out the scripts /usr/vice/etc configuration
218    cd /root
219    mkdir vice
220    cd vice
221    svn co svn://scripts.mit.edu/trunk/server/fedora/config/usr/vice/etc etc
222    \cp -a etc /usr/vice
223
224# Install the full list of perl modules that users expect to be on the
225# scripts.mit.edu servers.
226# - export PERL_MM_USE_DEFAULT=1
227# - Run 'cpan', accept the default configuration, and do 'o conf
228#   prerequisites_policy follow'.
229# - Parse the output of perldoc -u perllocal | grep head2 on an existing
230#   server, and "notest install" them from the cpan prompt.
231# TO DO THIS:
232# On another server, run:
233# perldoc -u perllocal | grep head2 | cut -f 3 -d '<' | cut -f 1 -d '|' | sort -u | perl -ne 'chomp; print "notest install $_\n" if system("rpm -q --whatprovides \"perl($_)\" >/dev/null 2>/dev/null")' > /mit/scripts/config/perl-packages.txt
234# Then on the server you're installing,
235#    cat perl-packages.txt | perl -MCPAN -e shell
236    export PERL_MM_USE_DEFAULT=1
237    # XXX: Some interactive gobbeldygook
238    cpan
239        o conf prerequisites_policy follow
240        o conf commit
241# on a reference server
242perldoc -u perllocal | grep head2 | cut -f 3 -d '<' | cut -f 1 -d '|' | sort -u | perl -ne 'chomp; print "notest install $_\n" if system("rpm -q --whatprovides \"perl($_)\" >/dev/null 2>/dev/null")' > perl-packages.txt
243# arrange for perl-packages.txt to be transferred to server
244    cat perl-packages.txt | perl -MCPAN -e shell
245
246# Install the Python eggs and Ruby gems and PEAR/PECL doohickeys that are on
247# the other scripts.mit.edu servers and do not have RPMs.
248# The general mode of operation will be to run the "list" command
249# on both servers, see what the differences are, check if those diffs
250# are packaged up as rpms, and install them (rpm if possible, native otherwise)
251# - Look at /usr/lib/python2.6/site-packages and
252#           /usr/lib64/python2.6/site-packages for Python eggs and modules.
253#   There will be a lot of gunk that was installed from packages;
254#   easy-install.pth will tell you what was easy_installed.
255#   First use 'yum search' to see if the relevant package is now available
256#   as an RPM, and install that if it is.  If not, then use easy_install.
257# - Look at `gem list` for Ruby gems.
258#   Again, use 'yum search' and prefer RPMs, but failing that, 'gem install'.
259#       ezyang: rspec-rails depends on rspec, and will override the Yum
260#       package, so... don't use that RPM yet
261# - Look at `pear list` for Pear fruits (or whatever they're called).
262#   Yet again, 'yum search' for RPMs before resorting to 'pear install'.  Note
263#   that for things in the beta repo, you'll need 'pear install package-beta'.
264#   (you might get complaints about the php_scripts module; ignore them)
265# - Look at `pecl list` for PECL things.  'yum search', and if you must,
266#   'pecl install' needed items.
267    # Automating this... will require a lot of batonning between
268    # the servers. Probably best way to do it is to write an actual
269    # script.
270
271# Setup some Python config
272    echo 'import site, os.path; site.addsitedir(os.path.expanduser("~/lib/python2.6/site-packages"))' > /usr/lib/python2.6/site-packages/00scripts-home.pth
273
274# Install the credentials.  There are a lot of things to remember here:
275#   o This will be different if you're setting up our build/update server.
276#   o You probably installed the machine keytab long ago
277    ls -l /etc/krb5.keytab
278#   o Use ktutil to combine the host/scripts.mit.edu and
279#     host/scripts-vhosts.mit.edu keys with host/this-server.mit.edu in
280#     the keytab.  Do not use 'k5srvutil change' on the combined keytab
281#     or you'll break the other servers. (real servers only)
282#   o The daemon.scripts keytab
283    ls -l /etc/daemon.keytab
284#   o The SSL cert private key (real servers only)
285#   o The LDAP password for the signup process (real servers only)
286#   o The SQL password for the signup process (real servers only)
287#   o The LDAP keytab for this server, which will be used later (real servers only)
288#   o Replace the ssh host keys with the ones common to all scripts servers (real servers only)
289#   o You'll install an LDAP certificate signed by the scripts CA later (real servers only)
290#   o Make sure root's .k5login is correct
291    cat /root/.k5login
292#   o Make sure logview's .k5login is correct (real servers only)
293
294# If you are setting up a test server, pay attention to
295# /etc/sysconfig/network-scripts and do not bind scripts' IP address.
296# You will also need to modify:
297#   o /etc/ldap.conf
298#       add: host scripts.mit.edu
299#   o /etc/nss-ldapd.conf
300#       replace: uri *****
301#       with: uri ldap://scripts.mit.edu/
302#   o /etc/openldap/ldap.conf
303#       add: URI ldap://scripts.mit.edu/
304#            BASE dc=scripts,dc=mit,dc=edu
305#   o /etc/httpd/conf.d/vhost_ldap.conf
306#       replace: VhostLDAPUrl ****
307#       with: VhostLDAPUrl "ldap://scripts.mit.edu/ou=VirtualHosts,dc=scripts,dc=mit,dc=edu"
308# to use scripts.mit.edu instead of localhost.
309# XXX: someone should write sed scripts to do this
310
311# If you are setting up a test server, afsagent's cronjob will attempt
312# to be renewing with the wrong credentials (daemon.scripts). Change this:
313    vim /home/afsagent/renew # replace all mentions of daemon.scripts.mit.edu
314
315# Install fedora-ds-base and set up replication (see ./HOWTO-SETUP-LDAP
316#   and ./fedora-ds-enable-ssl-and-kerberos.diff).
317
318# Make the services dirsrv, nslcd, nscd, postfix, and httpd start at
319# boot. Run chkconfig to make sure the set of services to be run is
320# correct.
321    chkconfig dirsrv on
322    chkconfig nslcd on
323    chkconfig nscd on
324    chkconfig postfix on
325    chkconfig httpd on
326
327# Postfix doesn't actually deliver mail; fix this
328    cd /etc/postfix
329    postmap virtual
330
331# Run fmtutil-sys --all, which does something that makes TeX work.
332    fmtutil-sys --all
333    # ezyang: I got errors on xetex
334
335# Ensure that PHP isn't broken:
336    mkdir /tmp/sessions
337    chmod 01777 /tmp/sessions
338
339# Ensure that fcgid isn't broken:
340    chmod 755 /var/run/httpd
341    # ezyang: The below didn't exist for me
342    chmod 755 /var/run/httpd/mod_fcgid
343    chmod 755 /var/run/mod_fcgid
344
345# Fix etc by making sure none of our config files got overwritten
346    cd /etc
347    svn status | grep M
348    # ezyang: I had to revert krb5.conf, nsswitch.conf and sysconfig/openafs
349
350# Reboot the machine to restore a consistent state, in case you
351# changed anything.
352    # ezyang: When I rebooted, the following things happened:
353    #   o Starting kdump failed (this is ok)
354    #   o postfix mailbombed us
355    #   o firstboot configuration screen popped up (ignored; manually will do
356    #     chkconfig after the fact)
357
358# (Optional) Beat your head against a wall.
359    chmod 755 /etc/httpd/run/mod_fcgid
360
361# Possibly perform other steps that I've neglected to put in this
362# document.
363#   o In the first install of not-backward, ThisCell got clobbered, resulting
364#     in trying to get tickets from openafs.org. Not sure when it got
365#     clobbered -- ezyang
366#   o For some reason, syslog-ng wasn't turning on automatically, so we weren't
367#     getting spew
368
369# Some info about changing hostnames: it appears to be in:
370#   o /etc/sysconfig/network
371#   o your lvm thingies; probably don't need to edit
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