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/sidekiq/run
  24        from: "# postgres"
  25        to: sv start postgres || exit 1
  26     - replace:
  27        filename: /etc/service/unicorn/run
  28        from: "# postgres"
  29        to: sv start postgres || exit 1
  30
  31 run:
  32   # temporary
  33   - exec: apt-get install -y socat
  34   - exec: mkdir -p /shared/postgres_run
  35   - exec: chown postgres:postgres /shared/postgres_run
  36   - exec: chmod 775 /shared/postgres_run
  37   - exec: rm -fr /var/run/postgresql
  38   - exec: ln -s /shared/postgres_run /var/run/postgresql
  39   - exec: socat /dev/null UNIX-CONNECT:/shared/postgres_run/.s.PGSQL.5432 || exit 0 && echo postgres already running stop container ; exit 1
  40   - exec: rm -fr /shared/postgres_run/.s*
  41   - exec: rm -fr /shared/postgres_run/*.pid
  42   - file:
  43      path: /etc/service/postgres/run
  44      chmod: "+x"
  45      contents: |
  46         #!/bin/sh
  47         exec 2>&1
  48         exec sudo -u postgres /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main
  49   - file:
  50      path: /root/upgrade_postgres
  51      chmod: "+x"
  52      contents: |
  53        #!/bin/bash
  54        if [ "9.2" = `cat /shared/postgres_data/PG_VERSION` ]; then
  55          echo Upgrading PostgreSQL to from version 9.2 to 9.3
  56          rm -fr /shared/postgres_data_new
  57          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
  58          apt-get update
  59          apt-get install -y postgresql-9.2
  60          /etc/init.d/postgresql stop
  61          rm -fr /shared/postgres_data/postmaster.pid
  62          cd ~postgres
  63          cp /etc/postgresql/9.2/main/*.conf /shared/postgres_data
  64          echo  >> /shared/postgres_data/postgresql.conf
  65          echo "data_directory = '/shared/postgres_data'" >> /shared/postgres_data/postgresql.conf
  66          SUCCESS=true
  67          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
  68
  69          if [[ "$SUCCESS" == 'false' ]]; then
  70            echo -------------------------------------------------------------------------------------
  71            echo UPGRADE OF POSTGRES FAILED
  72            echo
  73            echo You are going to need to export your data and import into a clean instance:
  74            echo
  75            echo Add the line: 'base_image: "samsaffron/discourse:0.1.1"'
  76            echo Change: "templates/postgres.template.yml TO templates/postgres.9.2.template.yml"
  77            echo
  78            echo Run "./launcher bootstrap" again
  79            echo
  80            echo When your instance is running:
  81            echo - Go to the admin UI, enable readonly and backup your site
  82            echo
  83            echo Then destroy your container "./launcher destroy standalone"
  84            echo Undo the base_image and postgres.9.2 template from your container config
  85            echo Run: "sudo mv /var/docker/shared/postgres_data /var/shared/postgres_data_old"
  86            echo Run: "./launcher bootstrap"
  87            echo
  88            echo Login to the blank site, and import your backup (remember to set the allow_restore site setting)
  89            echo Restart your container: "./launcher restart"
  90            echo -------------------------------------------------------------------------------------
  91            exit 1
  92          fi
  93
  94          exit 1
  95
  96          mv /shared/postgres_data /shared/postgres_data_old
  97          mv /shared/postgres_data_new /shared/postgres_data
  98
  99          echo -------------------------------------------------------------------------------------
 100          echo UPGRADE OF POSTGRES COMPLETE
 101          echo
 102          echo Old 9.2 database is stored at /shared/postgres_data_old
 103          echo
 104          echo Please run "./launcher bootstrap" again
 105          echo -------------------------------------------------------------------------------------
 106          exit 1
 107        fi
 108   - exec:
 109       cmd:
 110         - chown -R root /var/lib/postgresql/9.3/main
 111         - "[ ! -e /shared/postgres_data ] && install -d -m 0755 -o postgres -g postgres /shared/postgres_data && sudo -u postgres /usr/lib/postgresql/9.3/bin/initdb -D /shared/postgres_data || exit 0"
 112         - chown -R postgres:postgres /shared/postgres_data
 113         - chown -R postgres:postgres /var/run/postgresql
 114
 115   - exec: /root/upgrade_postgres
 116   - replace:
 117       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 118       from: "data_directory = '/var/lib/postgresql/9.3/main'"
 119       to: "data_directory = '/shared/postgres_data'"
 120
 121   # listen on all interfaces
 122   - replace:
 123       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 124       from: /#?listen_addresses *=.*/
 125       to: "listen_addresses = '*'"
 126
 127   # Necessary to enable backups
 128   - exec:
 129       cmd:
 130         - install -d -m 0755 -o postgres -g postgres /shared/postgres_backup
 131
 132   - replace:
 133       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 134       from: /#?max_wal_senders *=.*/
 135       to: "max_wal_senders = 4"
 136
 137   - replace:
 138       filename: "/etc/postgresql/9.3/main/postgresql.conf"
 139       from: /#?wal_level *=.*/
 140       to: "wal_level = hot_standby"
 141
 142   - replace:
 143       filename: "/etc/postgresql/9.3/main/pg_hba.conf"
 144       from: /^#local +replication +postgres +peer$/
 145       to: "local replication postgres  peer"
 146
 147   # allow all to connect in with md5 auth
 148   - replace:
 149       filename: "/etc/postgresql/9.3/main/pg_hba.conf"
 150       from: /^host.*all.*all.*127.*$/
 151       to: "host all all 0.0.0.0/0 md5"
 152
 153   - exec:
 154       background: true
 155       cmd: "sudo -u postgres /usr/lib/postgresql/9.3/bin/postmaster -D /etc/postgresql/9.3/main"
 156
 157   # give db a few secs to start up
 158   - exec: "sleep 5"
 159
 160   - exec: sudo -u postgres createdb discourse || exit 0
 161   - exec:
 162       stdin: |
 163         create user discourse;
 164       cmd: sudo -u postgres psql discourse
 165       raise_on_fail: false
 166
 167   - exec:
 168       stdin: |
 169         grant all privileges on database discourse to discourse;
 170       cmd: sudo -u postgres psql discourse
 171       raise_on_fail: false
 172
 173   - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "alter schema public owner to discourse;"'
 174   - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "create extension if not exists hstore;"'
 175   - exec: /bin/bash -c 'sudo -u postgres psql discourse <<< "create extension if not exists pg_trgm;"'
 176
 177   - exec:
 178       hook: postgres
 179       cmd: "echo postgres installed!"