templates/postgres.9.3.template.yml

   1 params:
   2   db_synchronous_commit: "off"
   3   db_shared_buffers: "256MB"
   4   db_work_mem: "10MB"
   5   db_default_text_search_config: "pg_catalog.english"
   6   db_name: discourse
   7   db_user: discourse
   8   db_wal_level: minimal
   9   db_max_wal_senders: 0
  10   db_checkpoint_segments: 6
  11   db_logging_collector: off
  12   db_log_min_duration_statement: 100
  13
  14
  15 hooks:
  16   before_code:
  17     - replace:
  18        filename: /etc/service/unicorn/run
  19        from: "# postgres"
  20        to: sv start postgres || exit 1
  21
  22 run:
  23   - exec: apt-get remove -y postgresql-9.5
  24   - exec: apt-get update && apt-get install -y postgresql-9.3
  25   - exec: /etc/init.d/postgresql stop
  26   - exec: mkdir -p /shared/postgres_run
  27   - exec: chown postgres:postgres /shared/postgres_run
  28   - exec: chmod 775 /shared/postgres_run
  29   - exec: rm -fr /var/run/postgresql
  30   - exec: ln -s /shared/postgres_run /var/run/postgresql
  31   - exec: socat /dev/null UNIX-CONNECT:/shared/postgres_run/.s.PGSQL.5432 || exit 0 && echo postgres already running stop container ; exit 1
  32   - exec: rm -fr /shared/postgres_run/.s*
  33   - exec: rm -fr /shared/postgres_run/*.pid
  34   - exec: mkdir -p /shared/postgres_run/9.3-main.pg_stat_tmp
  35   - exec: chown postgres:postgres /shared/postgres_run/9.3-main.pg_stat_tmp
  36   - file:
  37      path: /etc/service/postgres/run
  38      chmod: "+x"
  39      contents: |
  40         #!/bin/sh
  41         exec 2>&1
  42         echo -1000 >/proc/self/oom_score_adj
  43         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
  44
  45   - file:
  46      path: /etc/runit/3.d/99-postgres
  47      chmod: "+x"
  48      contents: |
  49        #!/bin/bash
  50        sv stop postgres
  51
  52   - exec:
  53       cmd:
  54         - chown -R root /var/lib/postgresql/9.3/main
  55         - "[ ! -e /shared/postgres_data ] && install -d -m 0755 -o postgres -g postgres /shared/postgres_data && sudo -E -u postgres /usr/lib/postgresql/9.3/bin/initdb -D /shared/postgres_data || exit 0"
  56         - chown -R postgres:postgres /shared/postgres_data
  57         - chown -R postgres:postgres /var/run/postgresql
  58
  59   - replace:
  60       filename: "/etc/postgresql/9.3/main/postgresql.conf"
  61       from: "data_directory = '/var/lib/postgresql/9.3/main'"
  62       to: "data_directory = '/shared/postgres_data'"
  63
  64   # listen on all interfaces
  65   - replace:
  66       filename: "/etc/postgresql/9.3/main/postgresql.conf"
  67       from: /#?listen_addresses *=.*/
  68       to: "listen_addresses = '*'"
  69
  70   # sync commit off is faster and less spiky, also marginally less safe
  71   - replace:
  72       filename: "/etc/postgresql/9.3/main/postgresql.conf"
  73       from: /#?synchronous_commit *=.*/
  74       to: "synchronous_commit = $db_synchronous_commit"
  75
  76   # default is 128MB which is way too small
  77   - replace:
  78       filename: "/etc/postgresql/9.3/main/postgresql.conf"
  79       from: /#?shared_buffers *=.*/
  80       to: "shared_buffers = $db_shared_buffers"
  81
  82   # default is 1MB which is too small
  83   - replace:
  84       filename: "/etc/postgresql/9.3/main/postgresql.conf"
  85       from: /#?work_mem *=.*/
  86       to: "work_mem = $db_work_mem"
  87
  88   # allow for other
  89   - replace:
  90       filename: "/etc/postgresql/9.3/main/postgresql.conf"
  91       from: /#?default_text_search_config *=.*/
  92       to: "default_text_search_config = '$db_default_text_search_config'"
  93
  94   # Necessary to enable backups
  95   - exec:
  96       cmd:
  97         - install -d -m 0755 -o postgres -g postgres /shared/postgres_backup
  98
  99   - replace:
 100       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 101       from: /#?max_wal_senders *=.*/
 102       to: "max_wal_senders = $db_max_wal_senders"
 103
 104   - replace:
 105       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 106       from: /#?wal_level *=.*/
 107       to: "wal_level = $db_wal_level"
 108
 109   - replace:
 110       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 111       from: /#?checkpoint_segments *=.*/
 112       to: "checkpoint_segments = $db_checkpoint_segments"
 113
 114   - replace:
 115       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 116       from: /#?logging_collector *=.*/
 117       to: "logging_collector = $db_logging_collector"
 118
 119   - replace:
 120       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 121       from: /#?log_min_duration_statement *=.*/
 122       to: "log_min_duration_statement = $db_log_min_duration_statement"
 123
 124   - replace:
 125       filename: "/etc/postgresql/9.3/main/pg_hba.conf"
 126       from: /^#local +replication +postgres +peer$/
 127       to: "local replication postgres  peer"
 128
 129   # allow all to connect in with md5 auth
 130   - replace:
 131       filename: "/etc/postgresql/9.3/main/pg_hba.conf"
 132       from: /^host.*all.*all.*127.*$/
 133       to: "host all all 0.0.0.0/0 md5"
 134
 135   - exec:
 136       background: true
 137       # use fast shutdown for pg
 138       stop_signal: INT
 139       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
 140
 141   # give db a few secs to start up
 142   - exec: "sleep 5"
 143
 144   - exec: su postgres -c 'createdb $db_name' || true
 145   - exec: su postgres -c 'psql $db_name -c "create user $db_user;"' || true
 146   - exec: su postgres -c 'psql $db_name -c "grant all privileges on database $db_name to $db_user;"' || true
 147   - exec: su postgres -c 'psql $db_name -c "alter schema public owner to $db_user;"'
 148   - exec: su postgres -c 'psql template1 -c "create extension if not exists hstore;"'
 149   - exec: su postgres -c 'psql template1 -c "create extension if not exists pg_trgm;"'
 150   - exec: su postgres -c 'psql $db_name -c "create extension if not exists hstore;"'
 151   - exec: su postgres -c 'psql $db_name -c "create extension if not exists pg_trgm;"'
 152   - exec:
 153       stdin: |
 154         update pg_database set encoding = pg_char_to_encoding('UTF8') where datname = '$db_name' AND encoding = pg_char_to_encoding('SQL_ASCII');
 155       cmd: sudo -u postgres psql $db_name
 156       raise_on_fail: false
 157
 158   - file:
 159      path: /var/lib/postgresql/take-database-backup
 160      chown: postgres:postgres
 161      chmod: "+x"
 162      contents: |
 163         #!/bin/bash
 164         ID=db-$(date +%F_%T)
 165         FILENAME=/shared/postgres_backup/$ID.tar.gz
 166         pg_basebackup --format=tar --pgdata=- --xlog --gzip --label=$ID > $FILENAME
 167         echo $FILENAME
 168
 169   - file:
 170      path: /var/spool/cron/crontabs/postgres
 171      contents: |
 172         # m h  dom mon dow   command
 173         #MAILTO=?
 174         #0 */4 * * * /var/lib/postgresql/take-database-backup
 175
 176   - exec:
 177       hook: postgres
 178       cmd: "echo postgres installed!"