templates/postgres.template.yml

   1 hooks:
   2   after_cron:
   3     - file:
   4        path: /var/lib/postgresql/take-database-backup
   5        chown: postgres:postgres
   6        chmod: "+x"
   7        contents: |
   8           #!/bin/bash
   9           ID=db-$(date +%F_%T)
  10           FILENAME=/shared/postgres_backup/$ID.tar.gz
  11           pg_basebackup --format=tar --pgdata=- --xlog --gzip --label=$ID > $FILENAME
  12           echo $FILENAME
  13
  14     - file:
  15        path: /var/spool/cron/crontabs/postgres
  16        contents: |
  17           # m h  dom mon dow   command
  18           #MAILTO=?
  19           0 */4 * * * /var/lib/postgresql/take-database-backup
  20
  21   before_code:
  22     - replace:
  23        filename: /etc/service/unicorn/run
  24        from: "# postgres"
  25        to: sv start postgres || exit 1
  26
  27 run:
  28   # temporary
  29   - exec: apt-get install -y socat
  30   - exec: mkdir -p /shared/postgres_run
  31   - exec: chown postgres:postgres /shared/postgres_run
  32   - exec: chmod 775 /shared/postgres_run
  33   - exec: rm -fr /var/run/postgresql
  34   - exec: ln -s /shared/postgres_run /var/run/postgresql
  35   - exec: socat /dev/null UNIX-CONNECT:/shared/postgres_run/.s.PGSQL.5432 || exit 0 && echo postgres already running stop container ; exit 1
  36   - exec: rm -fr /shared/postgres_run/.s*
  37   - exec: rm -fr /shared/postgres_run/*.pid
  38   - file:
  39      path: /etc/service/postgres/run
  40      chmod: "+x"
  41      contents: |
  42         #!/bin/sh
  43         exec 2>&1
  44         exec sudo -u postgres /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main
  45   - file:
  46      path: /root/upgrade_postgres
  47      chmod: "+x"
  48      contents: |
  49        #!/bin/bash
  50        if [ "9.2" = `cat /shared/postgres_data/PG_VERSION` ]; then
  51          echo Upgrading PostgreSQL to from version 9.2 to 9.3
  52          rm -fr /shared/postgres_data_new
  53          install -d -m 0755 -o postgres -g postgres /shared/postgres_data_new && sudo -u postgres /usr/lib/postgresql/9.3/bin/initdb -D /shared/postgres_data_new || exit 0
  54          apt-get update
  55          apt-get install -y postgresql-9.2
  56          /etc/init.d/postgresql stop
  57          rm -fr /shared/postgres_data/postmaster.pid
  58          cd ~postgres
  59          cp /etc/postgresql/9.2/main/*.conf /shared/postgres_data
  60          echo  >> /shared/postgres_data/postgresql.conf
  61          echo "data_directory = '/shared/postgres_data'" >> /shared/postgres_data/postgresql.conf
  62          SUCCESS=true
  63          sudo -u postgres /usr/lib/postgresql/9.3/bin/pg_upgrade -d /shared/postgres_data -D /shared/postgres_data_new -b /usr/lib/postgresql/9.2/bin -B /usr/lib/postgresql/9.3/bin || SUCCESS=false
  64
  65          if [[ "$SUCCESS" == 'false' ]]; then
  66            echo -------------------------------------------------------------------------------------
  67            echo UPGRADE OF POSTGRES FAILED
  68            echo
  69            echo You are going to need to export your data and import into a clean instance:
  70            echo
  71            echo Add the line: 'base_image: "samsaffron/discourse:0.1.1"'
  72            echo Change: "templates/postgres.template.yml TO templates/postgres.9.2.template.yml"
  73            echo
  74            echo Run "./launcher bootstrap" again
  75            echo
  76            echo When your instance is running:
  77            echo - Go to the admin UI, enable readonly and backup your site
  78            echo
  79            echo Then destroy your container "./launcher destroy standalone"
  80            echo Undo the base_image and postgres.9.2 template from your container config
  81            echo Run: "sudo mv /var/docker/shared/postgres_data /var/shared/postgres_data_old"
  82            echo Run: "./launcher bootstrap"
  83            echo
  84            echo "Login to the blank site, and import your backup (remember to set the allow_restore site setting)"
  85            echo Restart your container: "./launcher restart"
  86            echo -------------------------------------------------------------------------------------
  87            exit 1
  88          fi
  89
  90          mv /shared/postgres_data /shared/postgres_data_old
  91          mv /shared/postgres_data_new /shared/postgres_data
  92
  93          echo -------------------------------------------------------------------------------------
  94          echo UPGRADE OF POSTGRES COMPLETE
  95          echo
  96          echo Old 9.2 database is stored at /shared/postgres_data_old
  97          echo
  98          echo Please run "./launcher bootstrap" again
  99          echo -------------------------------------------------------------------------------------
 100          exit 1
 101        fi
 102   - exec:
 103       cmd:
 104         - chown -R root /var/lib/postgresql/9.3/main
 105         - "[ ! -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"
 106         - chown -R postgres:postgres /shared/postgres_data
 107         - chown -R postgres:postgres /var/run/postgresql
 108
 109   - exec: /root/upgrade_postgres
 110   - replace:
 111       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 112       from: "data_directory = '/var/lib/postgresql/9.3/main'"
 113       to: "data_directory = '/shared/postgres_data'"
 114
 115   # listen on all interfaces
 116   - replace:
 117       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 118       from: /#?listen_addresses *=.*/
 119       to: "listen_addresses = '*'"
 120
 121   # Necessary to enable backups
 122   - exec:
 123       cmd:
 124         - install -d -m 0755 -o postgres -g postgres /shared/postgres_backup
 125
 126   - replace:
 127       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 128       from: /#?max_wal_senders *=.*/
 129       to: "max_wal_senders = 4"
 130
 131   - replace:
 132       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 133       from: /#?wal_level *=.*/
 134       to: "wal_level = hot_standby"
 135
 136   - replace:
 137       filename: "/etc/postgresql/9.3/main/pg_hba.conf"
 138       from: /^#local +replication +postgres +peer$/
 139       to: "local replication postgres  peer"
 140
 141   # allow all to connect in with md5 auth
 142   - replace:
 143       filename: "/etc/postgresql/9.3/main/pg_hba.conf"
 144       from: /^host.*all.*all.*127.*$/
 145       to: "host all all 0.0.0.0/0 md5"
 146
 147   - exec:
 148       background: true
 149       cmd: "sudo -u postgres /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main"
 150
 151   # give db a few secs to start up
 152   - exec: "sleep 5"
 153
 154   - exec: sudo -u postgres createdb discourse || exit 0
 155   - exec:
 156       stdin: |
 157         create user discourse;
 158       cmd: sudo -u postgres psql discourse
 159       raise_on_fail: false
 160
 161   - exec:
 162       stdin: |
 163         grant all privileges on database discourse to discourse;
 164       cmd: sudo -u postgres psql discourse
 165       raise_on_fail: false
 166
 167   - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "alter schema public owner to discourse;"'
 168   - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "create extension if not exists hstore;"'
 169   - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "create extension if not exists pg_trgm;"'
 170
 171   - exec:
 172       hook: postgres
 173       cmd: "echo postgres installed!"