-hooks:
- after_cron:
- - file:
- path: /var/lib/postgresql/take-database-backup
- chown: postgres:postgres
- chmod: "+x"
- contents: |
- #!/bin/bash
- ID=db-$(date +%F_%T)
- FILENAME=/shared/postgres_backup/$ID.tar.gz
- pg_basebackup --format=tar --pgdata=- --xlog --gzip --label=$ID > $FILENAME
- echo $FILENAME
-
- - file:
- path: /var/spool/cron/crontabs/postgres
- contents: |
- # m h dom mon dow command
- #MAILTO=?
- 0 */4 * * * /var/lib/postgresql/take-database-backup
+params:
+ db_synchronous_commit: "off"
+ db_shared_buffers: "256MB"
+ db_work_mem: "10MB"
+ db_default_text_search_config: "pg_catalog.english"
+ db_name: discourse
+ db_user: discourse
+ db_wal_level: minimal
+ db_max_wal_senders: 0
+ db_checkpoint_segments: 6
+ db_logging_collector: off
+ db_log_min_duration_statement: 100
+
+hooks:
before_code:
- replace:
filename: /etc/service/unicorn/run
to: sv start postgres || exit 1
run:
- # temporary
- - exec: apt-get install -y socat
- exec: mkdir -p /shared/postgres_run
- exec: chown postgres:postgres /shared/postgres_run
- exec: chmod 775 /shared/postgres_run
- exec: socat /dev/null UNIX-CONNECT:/shared/postgres_run/.s.PGSQL.5432 || exit 0 && echo postgres already running stop container ; exit 1
- exec: rm -fr /shared/postgres_run/.s*
- exec: rm -fr /shared/postgres_run/*.pid
+ - exec: mkdir -p /shared/postgres_run/9.3-main.pg_stat_tmp
+ - exec: chown postgres:postgres /shared/postgres_run/9.3-main.pg_stat_tmp
- file:
path: /etc/service/postgres/run
chmod: "+x"
contents: |
#!/bin/sh
exec 2>&1
- exec sudo -u postgres /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main
+ echo -1000 >/proc/self/oom_score_adj
+ HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main
+
+ - file:
+ path: /etc/runit/3.d/99-postgres
+ chmod: "+x"
+ contents: |
+ #!/bin/bash
+ sv stop postgres
+
- file:
path: /root/upgrade_postgres
chmod: "+x"
echo
echo Then destroy your container "./launcher destroy standalone"
echo Undo the base_image and postgres.9.2 template from your container config
- echo Run: "sudo mv /var/docker/shared/postgres_data /var/shared/postgres_data_old"
+ echo Run: "sudo mv /var/discourse/shared/postgres_data /var/shared/postgres_data_old"
echo Run: "./launcher bootstrap"
echo
echo "Login to the blank site, and import your backup (remember to set the allow_restore site setting)"
- chown -R postgres:postgres /var/run/postgresql
- exec: /root/upgrade_postgres
+ - exec: rm /root/upgrade_postgres
+
- replace:
filename: "/etc/postgresql/9.3/main/postgresql.conf"
from: "data_directory = '/var/lib/postgresql/9.3/main'"
from: /#?listen_addresses *=.*/
to: "listen_addresses = '*'"
+ # sync commit off is faster and less spiky, also marginally less safe
+ - replace:
+ filename: "/etc/postgresql/9.3/main/postgresql.conf"
+ from: /#?synchronous_commit *=.*/
+ to: "synchronous_commit = $db_synchronous_commit"
+
+ # default is 128MB which is way too small
+ - replace:
+ filename: "/etc/postgresql/9.3/main/postgresql.conf"
+ from: /#?shared_buffers *=.*/
+ to: "shared_buffers = $db_shared_buffers"
+
+ # default is 1MB which is too small
+ - replace:
+ filename: "/etc/postgresql/9.3/main/postgresql.conf"
+ from: /#?work_mem *=.*/
+ to: "work_mem = $db_work_mem"
+
+ # allow for other
+ - replace:
+ filename: "/etc/postgresql/9.3/main/postgresql.conf"
+ from: /#?default_text_search_config *=.*/
+ to: "default_text_search_config = '$db_default_text_search_config'"
+
# Necessary to enable backups
- exec:
cmd:
- replace:
filename: "/etc/postgresql/9.3/main/postgresql.conf"
from: /#?max_wal_senders *=.*/
- to: "max_wal_senders = 4"
+ to: "max_wal_senders = $db_max_wal_senders"
- replace:
filename: "/etc/postgresql/9.3/main/postgresql.conf"
from: /#?wal_level *=.*/
- to: "wal_level = hot_standby"
+ to: "wal_level = $db_wal_level"
+
+ - replace:
+ filename: "/etc/postgresql/9.3/main/postgresql.conf"
+ from: /#?checkpoint_segments *=.*/
+ to: "checkpoint_segments = $db_checkpoint_segments"
+
+ - replace:
+ filename: "/etc/postgresql/9.3/main/postgresql.conf"
+ from: /#?logging_collector *=.*/
+ to: "logging_collector = $db_logging_collector"
+
+ - replace:
+ filename: "/etc/postgresql/9.3/main/postgresql.conf"
+ from: /#?log_min_duration_statement *=.*/
+ to: "log_min_duration_statement = $db_log_min_duration_statement"
- replace:
filename: "/etc/postgresql/9.3/main/pg_hba.conf"
- exec:
background: true
- cmd: "sudo -u postgres /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main"
+ # use fast shutdown for pg
+ stop_signal: INT
+ cmd: HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main
# give db a few secs to start up
- exec: "sleep 5"
- - exec: sudo -u postgres createdb discourse || exit 0
+ - exec: su postgres -c 'createdb $db_name' || true
+ - exec: su postgres -c 'psql $db_name -c "create user $db_user;"' || true
+ - exec: su postgres -c 'psql $db_name -c "grant all privileges on database $db_name to $db_user;"' || true
+ - exec: su postgres -c 'psql $db_name -c "alter schema public owner to $db_user;"'
+ - exec: su postgres -c 'psql template1 -c "create extension if not exists hstore;"'
+ - exec: su postgres -c 'psql template1 -c "create extension if not exists pg_trgm;"'
+ - exec: su postgres -c 'psql $db_name -c "create extension if not exists hstore;"'
+ - exec: su postgres -c 'psql $db_name -c "create extension if not exists pg_trgm;"'
- exec:
stdin: |
- create user discourse;
- cmd: sudo -u postgres psql discourse
+ update pg_database set encoding = pg_char_to_encoding('UTF8') where datname = '$db_name' AND encoding = pg_char_to_encoding('SQL_ASCII');
+ cmd: sudo -u postgres psql $db_name
raise_on_fail: false
- - exec:
- stdin: |
- grant all privileges on database discourse to discourse;
- cmd: sudo -u postgres psql discourse
- raise_on_fail: false
+ - file:
+ path: /var/lib/postgresql/take-database-backup
+ chown: postgres:postgres
+ chmod: "+x"
+ contents: |
+ #!/bin/bash
+ ID=db-$(date +%F_%T)
+ FILENAME=/shared/postgres_backup/$ID.tar.gz
+ pg_basebackup --format=tar --pgdata=- --xlog --gzip --label=$ID > $FILENAME
+ echo $FILENAME
- - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "alter schema public owner to discourse;"'
- - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "create extension if not exists hstore;"'
- - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "create extension if not exists pg_trgm;"'
- - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "create extension if not exists fuzzystrmatch;"'
+ - file:
+ path: /var/spool/cron/crontabs/postgres
+ contents: |
+ # m h dom mon dow command
+ #MAILTO=?
+ #0 */4 * * * /var/lib/postgresql/take-database-backup
- exec:
hook: postgres