2 db_synchronous_commit: "off"
3 db_shared_buffers: "256MB"
5 db_default_text_search_config: "pg_catalog.english"
10 db_checkpoint_segments: 6
11 db_logging_collector: off
12 db_log_min_duration_statement: 100
18 filename: /etc/service/unicorn/run
20 to: sv start postgres || exit 1
23 - exec: mkdir -p /shared/postgres_run
24 - exec: chown postgres:postgres /shared/postgres_run
25 - exec: chmod 775 /shared/postgres_run
26 - exec: rm -fr /var/run/postgresql
27 - exec: ln -s /shared/postgres_run /var/run/postgresql
28 - exec: socat /dev/null UNIX-CONNECT:/shared/postgres_run/.s.PGSQL.5432 || exit 0 && echo postgres already running stop container ; exit 1
29 - exec: rm -fr /shared/postgres_run/.s*
30 - exec: rm -fr /shared/postgres_run/*.pid
31 - exec: mkdir -p /shared/postgres_run/9.5-main.pg_stat_tmp
32 - exec: chown postgres:postgres /shared/postgres_run/9.5-main.pg_stat_tmp
34 path: /etc/service/postgres/run
39 echo -1000 >/proc/self/oom_score_adj
40 HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/9.5/bin/postmaster -D /etc/postgresql/9.5/main
43 path: /etc/runit/3.d/99-postgres
50 path: /root/upgrade_postgres
54 PG_MAJOR_OLD=`cat /shared/postgres_data/PG_VERSION`
56 if [ ! "9.5" = "$PG_MAJOR_OLD" ]; then
57 echo Upgrading PostgreSQL to from version ${PG_MAJOR_OLD} to 9.5
58 rm -fr /shared/postgres_data_new
59 install -d -m 0755 -o postgres -g postgres /shared/postgres_data_new && sudo -u postgres /usr/lib/postgresql/9.5/bin/initdb -D /shared/postgres_data_new || exit 0
61 apt-get install -y postgresql-${PG_MAJOR_OLD}
62 /etc/init.d/postgresql stop
63 rm -fr /shared/postgres_data/postmaster.pid
65 cp /etc/postgresql/${PG_MAJOR_OLD}/main/*.conf /shared/postgres_data
66 echo >> /shared/postgres_data/postgresql.conf
67 echo "data_directory = '/shared/postgres_data'" >> /shared/postgres_data/postgresql.conf
69 sudo -u postgres /usr/lib/postgresql/9.5/bin/pg_upgrade -d /shared/postgres_data -D /shared/postgres_data_new -b /usr/lib/postgresql/${PG_MAJOR_OLD}/bin -B /usr/lib/postgresql/9.5/bin || SUCCESS=false
71 if [[ "$SUCCESS" == 'false' ]]; then
72 echo -------------------------------------------------------------------------------------
73 echo UPGRADE OF POSTGRES FAILED
75 echo You are going to need to export your data and import into a clean instance:
78 if [ "$PG_MAJOR_OLD" = "9.2" ]; then
79 echo Add the line: 'base_image: "samsaffron/discourse:0.1.1"'
80 echo 'In containers/app.yml: Change "templates/postgres.template.yml" TO "templates/postgres.9.2.template.yml"'
84 if [ "$PG_MAJOR_OLD" = "9.3" ]; then
85 echo 'In containers/app.yml: Change "templates/postgres.template.yml" TO "templates/postgres.9.3.template.yml"'
89 echo Run "./launcher rebuild app" again
91 echo When your instance is running:
92 echo Run "./launcher enter app"
93 echo Run "cd /shared/postgres_backup && sudo -u postgres pg_dump discourse > backup.db"
95 echo Undo the base_image and postgres template from your container config
96 echo Run: "./launcher stop app"
97 echo Run: "sudo mv /var/discourse/shared/postgres_data /var/shared/postgres_data_old"
98 echo Run: "./launcher rebuild app"
100 echo Run: "./launcher enter app"
101 echo Run: "cd /shared/postgres_backup"
102 echo Run: "sv stop unicorn"
103 echo Run: "sudo -iu postgres dropdb discourse"
104 echo Run: "sudo -iu postgres createdb discourse"
105 echo Run: "sudo -iu postgres psql discourse < backup.db"
107 echo Run: "./launcher rebuild app"
111 mv /shared/postgres_data /shared/postgres_data_old
112 mv /shared/postgres_data_new /shared/postgres_data
114 echo -------------------------------------------------------------------------------------
115 echo UPGRADE OF POSTGRES COMPLETE
117 echo Old ${PG_MAJOR_OLD} database is stored at /shared/postgres_data_old
119 echo Please run "./launcher bootstrap" again
120 echo -------------------------------------------------------------------------------------
121 # Magic exit status to denote no failure
126 - chown -R root /var/lib/postgresql/9.5/main
127 - "[ ! -e /shared/postgres_data ] && install -d -m 0755 -o postgres -g postgres /shared/postgres_data && sudo -E -u postgres /usr/lib/postgresql/9.5/bin/initdb -D /shared/postgres_data || exit 0"
128 - chown -R postgres:postgres /shared/postgres_data
129 - chown -R postgres:postgres /var/run/postgresql
131 - exec: /root/upgrade_postgres
132 - exec: rm /root/upgrade_postgres
135 filename: "/etc/postgresql/9.5/main/postgresql.conf"
136 from: "data_directory = '/var/lib/postgresql/9.5/main'"
137 to: "data_directory = '/shared/postgres_data'"
139 # listen on all interfaces
141 filename: "/etc/postgresql/9.5/main/postgresql.conf"
142 from: /#?listen_addresses *=.*/
143 to: "listen_addresses = '*'"
145 # sync commit off is faster and less spiky, also marginally less safe
147 filename: "/etc/postgresql/9.5/main/postgresql.conf"
148 from: /#?synchronous_commit *=.*/
149 to: "synchronous_commit = $db_synchronous_commit"
151 # default is 128MB which is way too small
153 filename: "/etc/postgresql/9.5/main/postgresql.conf"
154 from: /#?shared_buffers *=.*/
155 to: "shared_buffers = $db_shared_buffers"
157 # default is 1MB which is too small
159 filename: "/etc/postgresql/9.5/main/postgresql.conf"
160 from: /#?work_mem *=.*/
161 to: "work_mem = $db_work_mem"
165 filename: "/etc/postgresql/9.5/main/postgresql.conf"
166 from: /#?default_text_search_config *=.*/
167 to: "default_text_search_config = '$db_default_text_search_config'"
169 # Necessary to enable backups
172 - install -d -m 0755 -o postgres -g postgres /shared/postgres_backup
175 filename: "/etc/postgresql/9.5/main/postgresql.conf"
176 from: /#?max_wal_senders *=.*/
177 to: "max_wal_senders = $db_max_wal_senders"
180 filename: "/etc/postgresql/9.5/main/postgresql.conf"
181 from: /#?wal_level *=.*/
182 to: "wal_level = $db_wal_level"
185 filename: "/etc/postgresql/9.5/main/postgresql.conf"
186 from: /#?checkpoint_segments *=.*/
187 to: "checkpoint_segments = $db_checkpoint_segments"
190 filename: "/etc/postgresql/9.5/main/postgresql.conf"
191 from: /#?logging_collector *=.*/
192 to: "logging_collector = $db_logging_collector"
195 filename: "/etc/postgresql/9.5/main/postgresql.conf"
196 from: /#?log_min_duration_statement *=.*/
197 to: "log_min_duration_statement = $db_log_min_duration_statement"
200 filename: "/etc/postgresql/9.5/main/pg_hba.conf"
201 from: /^#local +replication +postgres +peer$/
202 to: "local replication postgres peer"
204 # allow all to connect in with md5 auth
206 filename: "/etc/postgresql/9.5/main/pg_hba.conf"
207 from: /^host.*all.*all.*127.*$/
208 to: "host all all 0.0.0.0/0 md5"
212 # use fast shutdown for pg
214 cmd: HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/9.5/bin/postmaster -D /etc/postgresql/9.5/main
216 # give db a few secs to start up
219 - exec: su postgres -c 'createdb $db_name' || true
220 - exec: su postgres -c 'psql $db_name -c "create user $db_user;"' || true
221 - exec: su postgres -c 'psql $db_name -c "grant all privileges on database $db_name to $db_user;"' || true
222 - exec: su postgres -c 'psql $db_name -c "alter schema public owner to $db_user;"'
223 - exec: su postgres -c 'psql template1 -c "create extension if not exists hstore;"'
224 - exec: su postgres -c 'psql template1 -c "create extension if not exists pg_trgm;"'
225 - exec: su postgres -c 'psql $db_name -c "create extension if not exists hstore;"'
226 - exec: su postgres -c 'psql $db_name -c "create extension if not exists pg_trgm;"'
229 update pg_database set encoding = pg_char_to_encoding('UTF8') where datname = '$db_name' AND encoding = pg_char_to_encoding('SQL_ASCII');
230 cmd: sudo -u postgres psql $db_name
234 path: /var/lib/postgresql/take-database-backup
235 chown: postgres:postgres
240 FILENAME=/shared/postgres_backup/$ID.tar.gz
241 pg_basebackup --format=tar --pgdata=- --xlog --gzip --label=$ID > $FILENAME
245 path: /var/spool/cron/crontabs/postgres
247 # m h dom mon dow command
249 #0 */4 * * * /var/lib/postgresql/take-database-backup
253 cmd: "echo postgres installed!"