PostgreSQL 12 (#462)

PostgreSQL 12 (#462)

diff --git a/image/base/Dockerfile b/image/base/Dockerfile
index fa5bcdb..694dd26 100644
--- a/image/base/Dockerfile
+++ b/image/base/Dockerfile
@@ -2,7 +2,7 @@
 # VERSION:  release
 FROM debian:buster-slim
 
-ENV PG_MAJOR 10
+ENV PG_MAJOR 12
 ENV RUBY_ALLOCATOR /usr/lib/libjemalloc.so.1
 ENV RAILS_ENV production
 
diff --git a/templates/postgres.12.template.yml b/templates/postgres.12.template.yml
new file mode 100644
index 0000000..20cd5d8
--- /dev/null
+++ b/templates/postgres.12.template.yml
@@ -0,0 +1,173 @@
+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
+       from: "# postgres"
+       to: sv start postgres || exit 1
+
+run:
+  - exec: mkdir -p /shared/postgres_run
+  - exec: chown postgres:postgres /shared/postgres_run
+  - exec: chmod 775 /shared/postgres_run
+  - exec: rm -fr /var/run/postgresql
+  - exec: ln -s /shared/postgres_run /var/run/postgresql
+  - 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/12-main.pg_stat_tmp
+  - exec: chown postgres:postgres /shared/postgres_run/12-main.pg_stat_tmp
+  - file:
+     path: /etc/service/postgres/run
+     chmod: "+x"
+     contents: |
+        #!/bin/sh
+        exec 2>&1
+        HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/12/bin/postmaster -D /etc/postgresql/12/main
+
+  - file:
+     path: /etc/runit/3.d/99-postgres
+     chmod: "+x"
+     contents: |
+       #!/bin/bash
+       sv stop postgres
+
+  - exec:
+      cmd:
+        - chown -R root /var/lib/postgresql/12/main
+        - "[ ! -e /shared/postgres_data ] && install -d -m 0755 -o postgres -g postgres /shared/postgres_data && sudo -E -u postgres /usr/lib/postgresql/12/bin/initdb -D /shared/postgres_data || exit 0"
+        - chown -R postgres:postgres /shared/postgres_data
+        - chown -R postgres:postgres /var/run/postgresql
+
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: "data_directory = '/var/lib/postgresql/12/main'"
+      to: "data_directory = '/shared/postgres_data'"
+
+  # listen on all interfaces
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?listen_addresses *=.*/
+      to: "listen_addresses = '*'"
+
+  # sync commit off is faster and less spiky, also marginally less safe
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?synchronous_commit *=.*/
+      to: "synchronous_commit = $db_synchronous_commit"
+
+  # default is 128MB which is way too small
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?shared_buffers *=.*/
+      to: "shared_buffers = $db_shared_buffers"
+
+  # default is 1MB which is too small
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?work_mem *=.*/
+      to: "work_mem = $db_work_mem"
+
+  # allow for other
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?default_text_search_config *=.*/
+      to: "default_text_search_config = '$db_default_text_search_config'"
+
+  # Necessary to enable backups
+  - exec:
+      cmd:
+        - install -d -m 0755 -o postgres -g postgres /shared/postgres_backup
+
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?max_wal_senders *=.*/
+      to: "max_wal_senders = $db_max_wal_senders"
+
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?wal_level *=.*/
+      to: "wal_level = $db_wal_level"
+
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?checkpoint_segments *=.*/
+      to: "checkpoint_segments = $db_checkpoint_segments"
+
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?logging_collector *=.*/
+      to: "logging_collector = $db_logging_collector"
+
+  - replace:
+      filename: "/etc/postgresql/12/main/postgresql.conf"
+      from: /#?log_min_duration_statement *=.*/
+      to: "log_min_duration_statement = $db_log_min_duration_statement"
+
+  - replace:
+      filename: "/etc/postgresql/12/main/pg_hba.conf"
+      from: /^#local +replication +postgres +peer$/
+      to: "local replication postgres  peer"
+
+  # allow all to connect in with md5 auth
+  - replace:
+      filename: "/etc/postgresql/12/main/pg_hba.conf"
+      from: /^host.*all.*all.*127.*$/
+      to: "host all all 0.0.0.0/0 md5"
+
+  - exec:
+      background: true
+      # 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/12/bin/postmaster -D /etc/postgresql/12/main
+
+  # give db a few secs to start up
+  - exec: "sleep 5"
+
+  - 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 $db_name -c "create extension if not exists pg_trgm;"'
+  - exec:
+      stdin: |
+        update pg_database set encoding = pg_char_to_encoding('UTF8') where datname = '$db_name' AND encoding = pg_char_to_encoding('SQL_ASCII');
+      cmd: sudo -u postgres psql $db_name
+      raise_on_fail: false
+
+  - file:
+     path: /var/lib/postgresql/take-database-backup
+     chown: postgres:postgres
+     chmod: "+x"
+     contents: |
+        #!/bin/bash
+        ID=db-$(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
+
+  - exec:
+      hook: postgres
+      cmd: "echo postgres installed!"
diff --git a/templates/postgres.template.yml b/templates/postgres.template.yml
index 681551c..6731da0 100644
--- a/templates/postgres.template.yml
+++ b/templates/postgres.template.yml
@@ -28,15 +28,15 @@ 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/10-main.pg_stat_tmp
-  - exec: chown postgres:postgres /shared/postgres_run/10-main.pg_stat_tmp
+  - exec: mkdir -p /shared/postgres_run/12-main.pg_stat_tmp
+  - exec: chown postgres:postgres /shared/postgres_run/12-main.pg_stat_tmp
   - file:
      path: /etc/service/postgres/run
      chmod: "+x"
      contents: |
         #!/bin/sh
         exec 2>&1
-        HOME=/var/lib/postgresql USER=postgres exec thpoff chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/10/bin/postmaster -D /etc/postgresql/10/main

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GitHub sha: 4cdd4c8a

1 Like

This commit appears in #462 which was merged by Falco.