| 1 | = Using Tracd with Nginx in Cluster Mode = |
| 2 | I am intensely dissatisfied with Trac and Apache. We have multiple vhosts, and multiple trac sites per vhost. When we tried upgrading form Subverison 1.2.3 we hit [http://trac.edgewall.org/ticket/2611# this bug]. |
| 3 | * apache/mod_python still occasionally segfaults. |
| 4 | * apache/mod_python was causing strange occasional delays. (Likely related to the segfaults). |
| 5 | * We would like to upgrade to SVN 1.4 |
| 6 | |
| 7 | '''Caveat''': Only use this with PostgreSQL. If you want to do this, but are on SQLite, then use Pacopablos [http://trac-hacks.org/wiki/SqliteToPgScript Sqlite-to-Pg]. We use it here, and it's great. |
| 8 | |
| 9 | == Tracd == |
| 10 | Run multiple tracd instances. This offers a speed benefit if you use [http://fasterfox.mozdev.org/ FasterFox], as well as good multi-user concurrency responsiveness. |
| 11 | |
| 12 | Using the Gentoo init system, it was easy to create simple init scripts (which I attatched to this page). Here is a simplified example, which makes for easier wiki'ing |
| 13 | |
| 14 | `start-meta-site.sh` |
| 15 | {{{ |
| 16 | #!sh |
| 17 | INSTANCES="3050 3051 3052 3053 3054 3055 3056" |
| 18 | USER="apache" |
| 19 | VERSION="0.10.1" |
| 20 | #ENV="/var/live/trac" |
| 21 | PIDFILE="/var/live/run/tracd" |
| 22 | ### Extra Args here, for instance --basic-auth |
| 23 | #ARGS="--basic-auth=${ENV},${ENV}/vccbob.pwd,FarQ" |
| 24 | ARGS="-e /var/live/trac" |
| 25 | PYTHON_EGG_CACHE="/var/live/egg_cache" |
| 26 | |
| 27 | function start(){ |
| 28 | export PYTHON_EGG_CACHE |
| 29 | for I in $INSTANCES; do |
| 30 | su ${USER} -c "/usr/bin/tracd -d -p ${I} --pidfile=${PIDFILE}.${I} --protocol=http ${ARGS} ${ENV}" |
| 31 | done |
| 32 | } |
| 33 | |
| 34 | function stop(){ |
| 35 | for x in `ls ${PIDFILE}.*}`; do |
| 36 | kill `cat ${x}` |
| 37 | done |
| 38 | } |
| 39 | }}} |
| 40 | |
| 41 | `start-single-site.sh` |
| 42 | {{{ |
| 43 | #!sh |
| 44 | INSTANCES="3050 3051 3052" |
| 45 | USER="apache" |
| 46 | VERSION="0.10.1" |
| 47 | ENV="/var/lib/trac-single" |
| 48 | PIDFILE="/var/lib/trac-single/run" |
| 49 | ### Extra Args here, for instance --basic-auth |
| 50 | #ARGS="--basic-auth=${ENV},${ENV}/vccbob.pwd,FarQ" |
| 51 | ARGS="--basic-auth=${ENV},${ENV}/vccbob.pwd,FarQ ${ENV}" |
| 52 | PYTHON_EGG_CACHE="${ENV}/egg_cache" |
| 53 | |
| 54 | function start(){ |
| 55 | export PYTHON_EGG_CACHE |
| 56 | for I in $INSTANCES; do |
| 57 | su ${USER} -c "/usr/bin/tracd -d -p ${I} --pidfile=${PIDFILE}.${I} --protocol=http ${ARGS} ${ENV}" |
| 58 | done |
| 59 | } |
| 60 | |
| 61 | function stop(){ |
| 62 | for x in `ls ${PIDFILE}.*}`; do |
| 63 | kill `cat ${x}` |
| 64 | done |
| 65 | } |
| 66 | |
| 67 | |
| 68 | }}} |
| 69 | |
| 70 | == Nginx == |
| 71 | Get [http://www.nginx.net/ Nginx], the Excellent Apache Replacement by [http://sysoev.ru/en/ Igor Sysoev]. Install it. I use Gentoo, and all of my examples are based on Gentoo. Gentoo packagers create /etc/nginx. |
| 72 | |
| 73 | /etc/nginx/nginx.conf |
| 74 | {{{ |
| 75 | http { |
| 76 | include /etc/nginx/mime.types; |
| 77 | default_type application/octet-stream; |
| 78 | |
| 79 | include /etc/nginx/nginx-defaults.conf; |
| 80 | |
| 81 | upstream live_trachosts_com { |
| 82 | server 127.0.0.1:3050; |
| 83 | server 127.0.0.1:3051; |
| 84 | #[... up to the number of instance, or more, if you want to be free to add more ...] |
| 85 | } |
| 86 | |
| 87 | server { |
| 88 | listen 192.168.1.254:80; |
| 89 | server_name live.trachosts.com live; |
| 90 | |
| 91 | access_log /var/log/nginx/live.access.log main; |
| 92 | error_log /var/log/nginx/live.error_log info; |
| 93 | |
| 94 | location / { |
| 95 | proxy_pass http://live_trachosts_com; |
| 96 | include /etc/nginx/proxy.conf; |
| 97 | } |
| 98 | |
| 99 | } |
| 100 | }}} |
| 101 | |
| 102 | == Nginx + SSL == |
| 103 | You might be asking about ssl - here is what we do for ssl: |
| 104 | /etc/nginx/nginx.conf |
| 105 | {{{ |
| 106 | http { |
| 107 | include /etc/nginx/mime.types; |
| 108 | default_type application/octet-stream; |
| 109 | |
| 110 | include /etc/nginx/nginx-defaults.conf; |
| 111 | |
| 112 | upstream live_trachosts_com { |
| 113 | server 127.0.0.1:3050; |
| 114 | server 127.0.0.1:3051; |
| 115 | #[... up to the number of instance, or more, if you want to be free to add more ...] |
| 116 | } |
| 117 | |
| 118 | server { |
| 119 | listen 192.168.1.254:80; |
| 120 | server_name live.trachosts.com live; |
| 121 | |
| 122 | access_log /var/log/nginx/live.access.log main; |
| 123 | error_log /var/log/nginx/live.error_log info; |
| 124 | |
| 125 | location / { |
| 126 | rewrite ^/(.*)$ https://imrlive.com/$1 redirect; |
| 127 | } |
| 128 | |
| 129 | } |
| 130 | server { |
| 131 | listen 192.168.1.254:443; |
| 132 | server_name live.trachosts.com live; |
| 133 | |
| 134 | access_log /var/log/nginx/live.access.log main; |
| 135 | error_log /var/log/nginx/live.error_log info; |
| 136 | |
| 137 | ssl on; |
| 138 | ssl_certificate /etc/nginx/ssl/_nginx.cert; |
| 139 | ssl_certificate_key /etc/nginx/ssl/traclive.key; |
| 140 | keepalive_timeout 70; |
| 141 | add_header Front-End-Https on; |
| 142 | |
| 143 | location / { |
| 144 | proxy_pass http://live_trachosts_com; |
| 145 | include /etc/nginx/proxy.conf; |
| 146 | } |
| 147 | |
| 148 | } |
| 149 | } |
| 150 | }}} |
| 151 | |
| 152 | |
| 153 | == Subversion == |
| 154 | We still need to get access to subversion via Apache mod_dav_svn. I created a vhost in apache for _only_ the svn URLs. Other people will not use this setup, which is good for them. |
| 155 | |
| 156 | {{{ |
| 157 | Listen 127.0.0.1:80 |
| 158 | <VirtualHost *:80> |
| 159 | ServerAdmin webmaster@trachosts.com |
| 160 | ServerName trachosts.com |
| 161 | DocumentRoot "/var/www/live.trachosts.com/htdocs" |
| 162 | |
| 163 | <Directory "/var/www/live.trachosts.com/htdocs"> |
| 164 | Options FollowSymLinks |
| 165 | AllowOverride None |
| 166 | Order allow,deny |
| 167 | Allow from all |
| 168 | </Directory> |
| 169 | |
| 170 | # Subversion Configuration |
| 171 | <IfModule mod_dav_svn.c> |
| 172 | <Location /svn> |
| 173 | DAV svn |
| 174 | SVNParentPath /var/live/svn |
| 175 | AuthType Basic |
| 176 | AuthName "Client Trac Sites - Subversion Repository" |
| 177 | AuthUserFile /var/live/conf/users |
| 178 | <IfModule !mod_authz_svn.c> |
| 179 | AuthzSVNAccessFile /var/live/conf/svnauthz |
| 180 | </IfModule> |
| 181 | Require valid-user |
| 182 | </Location> |
| 183 | </IfModule> |
| 184 | </VirtualHost> |
| 185 | }}} |
| 186 | |
| 187 | Add this to the server section of the Nginx config. (in the :80 line, or the :443, whatever) |
| 188 | {{{ |
| 189 | location /svn { |
| 190 | proxy_pass http://127.0.0.1:80; |
| 191 | include /etc/nginx/proxy.conf; |
| 192 | } |
| 193 | }}} |
| 194 | }}} |