Merge branch 10 into develop (#113)

* Fix typo in helper script

* Port work in develop to 10 branch (#90)

* Port 9.6 to develop (#89)

* Part one of porting work from 9.6 to 10

* Backported more scripts from 9.6 branch

* Added missing apt update in dockerfile

* Updates to entrypoint to reference image and update docker-compose to reference 10 pg

* Added sample and docs from 9.6 branch

* Removed my diagram as Rizky had already added one

* Fix env paths for pg 10

* Fixes for backporting work from 9.6 to 10 - dbb now spins up and accepts connections properly

* Update README.md

* Backport from branch: 9.6-2.4

Fix default datadir

- Change into default datadir
- Add small unittest

* Optimise PostgreSQL performance and align with the changes done in 9.6
version

* Fix version numbers

* Minor change to correct env file

* Merged 10 branch into develop

* Remove reduntant conf file from dockerfile

* Remove reduntant conf file directive from setup script

* Remove reduntant conf file directive from  script
pull/114/head
mazano 2019-01-25 14:57:23 +02:00 zatwierdzone przez GitHub
rodzic 6f30fba235
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@ -35,11 +35,7 @@ ADD setup-pg_hba.sh /
ADD setup-replication.sh /
ADD setup-ssl.sh /
ADD setup-user.sh /
ADD postgresql.conf /tmp/postgresql.conf
RUN chmod +x /docker-entrypoint.sh
# Optimise postgresql
RUN echo "kernel.shmmax=543252480" >> /etc/sysctl.conf
RUN echo "kernel.shmall=2097152" >> /etc/sysctl.conf
ENTRYPOINT /docker-entrypoint.sh

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@ -4,7 +4,7 @@
A simple docker container that runs PostGIS
Visit our page on the docker hub at: https://registry.hub.docker.com/u/kartoza/postgis/
Visit our page on the docker hub at: https://hub.docker.com/r/kartoza/postgis/
There are a number of other docker postgis containers out there. This one
differentiates itself by:
@ -14,14 +14,12 @@ differentiates itself by:
* template_postgis database template is created for you
* a default database 'gis' is created for you so you can use this container 'out of the
box' when it runs with e.g. QGIS
* supports single master replication
* replication support included
We will work to add more security features to this container in the future with
the aim of making a PostGIS image that is ready to be used in a production
environment (though probably not for heavy load databases).
## Tutorial
There is a nice 'from scratch' tutorial on using this docker image on Alex Urquhart's
blog [here](https://alexurquhart.com/post/set-up-postgis-with-docker/) - if you are
just getting started with docker, PostGIS and QGIS, we really recommend that you use it.
@ -62,7 +60,7 @@ since deb packages need to be refetched each time you build) do:
docker build -t kartoza/postgis git://github.com/kartoza/docker-postgis
```
To build with apt-cache (and minimised download requirements) do you need to
To build with apt-cacher (and minimise download requirements) you need to
clone this repo locally first and modify the contents of 71-apt-cacher-ng to
match your cacher host. Then build using a local url instead of directly from
github.
@ -102,7 +100,14 @@ user is set to 'docker' with password 'docker'.
You can open up the PG port by using the following environment variable. By default
the container will allow connections only from the docker private subnet.
* -e ALLOW_IP_RANGE=<0.0.0.0/0>
* -e ALLOW_IP_RANGE=<0.0.0.0/0> By default
t
Postgres conf is setup to listen to all connections and if a user needs to restrict which IP address
PostgreSQL listens to you can define it with the following environment variable. The default is set to listen to
all connections.
* -e IP_LIST=<*>
## Convenience docker-compose.yml
@ -137,10 +142,10 @@ psql -h localhost -U docker -p 25432 -l
You can then go on to use any normal postgresql commands against the container.
Under ubuntu 14.04 the postgresql client can be installed like this:
Under ubuntu 16.04 the postgresql client can be installed like this:
```
sudo apt-get install postgresql-client-9.5
sudo apt-get install postgresql-client-9.6
```
@ -163,55 +168,55 @@ Replication allows you to maintain two or more synchronised copies of a database
single **master** copy and one or more **replicant** copies. The animation below illustrates
this - the layer with the red boundary is accessed from the master database and the layer
with the green fill is accessed from the replicant database. When edits to the master
layer are saved, they are automatically propogated to the replicant. Note also that the
layer are saved, they are automatically propagated to the replicant. Note also that the
replicant is read-only.
![qgis](https://user-images.githubusercontent.com/178003/37755610-dd3b774a-2dae-11e8-9fa1-4877e2034675.gif)
This image is provided with replication abilities. We can
categorize an instance of the container as `master` or `replicant`. A `master`
instance means that a particular container have a role as a single point of
instance means that a particular container has a role as a single point of
database write. A `replicant` instance means that a particular container will
mirror database content from a designated master. This replication scheme allows
us to sync database. However a `replicant` is only of read-only transaction, thus
we can't write new data on it.
us to sync databases. However a `replicant` is only for read-only transaction, thus
we can't write new data to it. The whole database cluster will be replicated.
To experiment with the replication abilities, you can see a (docker-compose.yml)[sample/replication/docker-compose.yml]
sample provided. There are several environment variables that you can set, such as:
sample. There are several environment variables that you can set, such as:
Master settings:
- **ALLOW_IP_RANGE**: A pg_hba.conf domain format which will allow certain host
to connect into the container. This is needed to allow `slave` to connect
into `master`, so specifically this settings should allow `slave` address.
- Both POSTGRES_USER and POSTGRES_PASS will be used as credentials for slave to
connect, so make sure you changed this into something secure.
- **ALLOW_IP_RANGE**: A pg_hba.conf domain format which will allow specified host(s)
to connect into the container. This is needed to allow the `slave` to connect
into `master`, so specifically this settings should allow `slave` address. It is also needed to allow clients on other hosts to connect to either the slave or the master.
- Both POSTGRES_USER and POSTGRES_PASS will be used as credentials for the slave to
connect, so make sure you change this into something secure.
Slave settings:
- **REPLICATE_FROM**: This should be the domain name, or ip address of `master`
instance. It can be anything from docker resolved name like written in the sample,
- **REPLICATE_FROM**: This should be the domain name or IP address of the `master`
instance. It can be anything from the docker resolved name like that written in the sample,
or the IP address of the actual machine where you expose `master`. This is
useful to create cross machine replication, or cross stack/server.
- **REPLICATE_PORT**: This should be the port number of `master` postgres instance.
Will default to 5432 (default postgres port), if not specified.
- **DESTROY_DATABASE_ON_RESTART**: Default is `True`. Set to otherwise to prevent
- **DESTROY_DATABASE_ON_RESTART**: Default is `True`. Set to 'False' to prevent
this behaviour. A replicant will always destroy its current database on
restart, because it will try to sync again from `master` and avoid inconsistencies.
- **PROMOTE_MASTER**: Default none. If set to any value, then the current replicant
- **PROMOTE_MASTER**: Default none. If set to any value then the current replicant
will be promoted to master.
In some cases when `master` container has failed, we might want to use our `replicant`
as `master` for a while. However promoted replicant will break consistencies and
is not able to revert to replicant anymore, unless the were destroyed and resynced
In some cases when the `master` container has failed, we might want to use our `replicant`
as `master` for a while. However, the promoted replicant will break consistencies and
is not able to revert to replicant anymore, unless it is destroyed and resynced
with the new master.
To run sample replication, do the following instructions:
To run the sample replication, follow these instructions:
Do manual image build by executing `build.sh` script
Do a manual image build by executing the `build.sh` script
```
./build.sh
```
Go into `sample/replication` directory and experiment with the following Make
Go into the `sample/replication` directory and experiment with the following Make
command to run both master and slave services.
```
@ -237,7 +242,7 @@ You can try experiment with several scenarios to see how replication works
You can use any postgres database tools to create new tables in master, by
connecting using POSTGRES_USER and POSTGRES_PASS credentials using exposed port.
In the sample, master database were exposed in port 7777.
In the sample, the master database was exposed on port 7777.
Or you can do it via command line, by entering the shell:
```
@ -246,8 +251,8 @@ make master-shell
Then made any database changes using psql.
After that, you can see that replicant follows the changes by inspecting
slave database. You can, again, uses database management tools using connection
After that, you can see that the replicant follows the changes by inspecting the
slave database. You can, again, use database management tools using connection
credentials, hostname, and ports for replicant. Or you can do it via command line,
by entering the shell:
@ -259,27 +264,30 @@ Then view your changes using psql.
### Promoting replicant to master
You will notice that you cannot make changes in replicant, because it was read-only.
You will notice that you cannot make changes in replicant, because it is read-only.
If somehow you want to promote it to master, you can specify `PROMOTE_MASTER: 'True'`
into slave environment and set `DESTROY_DATABASE_ON_RESTART: 'False'`.
After this, you can make changes to your replicant, but master and replicant will not
be in sync anymore. This is useful if replicant needs to take over a failover master.
However it was recommended to take additional action, such as creating backup from
slave, so a dedicated master can be created again.
be in sync anymore. This is useful if the replicant needs to take over a failover master.
However it is recommended to take additional action, such as creating a backup from the
slave so a dedicated master can be created again.
### Preventing replicant database destroy on restart
You can optionally set `DESTROY_DATABASE_ON_RESTART: 'False'` after successful sync
to prevent the database from destroyed on restart. With this settings, you can
shutdown your replicant and restart it later and it will continue to sync using existing
database (as long as there is no consistencies conflicts).
to prevent the database from being destroyed on restart. With this setting you can
shut down your replicant and restart it later and it will continue to sync using the existing
database (as long as there are no consistencies conflicts).
However, you should note that this option doesn't mean anything if you didn't
persist your database volumes. Because if it is not persisted, then it will be lost
persist your database volume. Because if it is not persisted, then it will be lost
on restart because docker will recreate the container.
## Credits
Tim Sutton (tim@kartoza.com)
May 2014
Gavin Fleming (gavin@kartoza.com)
Risky Maulana (rizky@kartoza.com)
Admire Nyakudya (admire@kartoza.com)
December 2018

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@ -1,2 +1,3 @@
#!/usr/bin/env bash
docker build -t kartoza/postgis:manual-build .
docker build -t kartoza/postgis:10.0-2.4 .

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@ -40,13 +40,13 @@ done
if [ $# -eq 0 ];
then
echo "Postgres initialisation process completed .... restarting in foreground"
cat /tmp/postgresql.conf > ${CONF}
su - postgres -c "$SETVARS $POSTGRES -D $DATADIR -c config_file=$CONF"
fi
# If arguments passed, run postgres with these arguments
# This will make sure entrypoint will always be executed
if [ "${1:0:1}" = '-' ]; then
if [[ "${1:0:1}" = '-' ]]; then
# append postgres into the arguments
set -- postgres "$@"
fi

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@ -3,6 +3,7 @@
DATADIR="/var/lib/postgresql/10/main"
ROOT_CONF="/etc/postgresql/10/main"
CONF="$ROOT_CONF/postgresql.conf"
WAL_ARCHIVE="/opt/archivedir"
RECOVERY_CONF="$ROOT_CONF/recovery.conf"
POSTGRES="/usr/lib/postgresql/10/bin/postgres"
INITDB="/usr/lib/postgresql/10/bin/initdb"
@ -49,6 +50,9 @@ if [ -z "${PG_WAL_KEEP_SEGMENTS}" ]; then
PG_WAL_KEEP_SEGMENTS=100
fi
if [ -z "${IP_LIST}" ]; then
IP_LIST='*'
fi
# Compatibility with official postgres variable
# Official postgres variable gets priority

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@ -1,652 +0,0 @@
# -----------------------------
# PostgreSQL configuration file
# -----------------------------
#
# This file consists of lines of the form:
#
# name = value
#
# (The "=" is optional.) Whitespace may be used. Comments are introduced with
# "#" anywhere on a line. The complete list of parameter names and allowed
# values can be found in the PostgreSQL documentation.
#
# The commented-out settings shown in this file represent the default values.
# Re-commenting a setting is NOT sufficient to revert it to the default value;
# you need to reload the server.
#
# This file is read on server startup and when the server receives a SIGHUP
# signal. If you edit the file on a running system, you have to SIGHUP the
# server for the changes to take effect, or use "pg_ctl reload". Some
# parameters, which are marked below, require a server shutdown and restart to
# take effect.
#
# Any parameter can also be given as a command-line option to the server, e.g.,
# "postgres -c log_connections=on". Some parameters can be changed at run time
# with the "SET" SQL command.
#
# Memory units: kB = kilobytes Time units: ms = milliseconds
# MB = megabytes s = seconds
# GB = gigabytes min = minutes
# TB = terabytes h = hours
# d = days
#------------------------------------------------------------------------------
# FILE LOCATIONS
#------------------------------------------------------------------------------
# The default values of these variables are driven from the -D command-line
# option or PGDATA environment variable, represented here as ConfigDir.
data_directory = '/var/lib/postgresql/10/main' # use data in another directory
# (change requires restart)
hba_file = '/etc/postgresql/10/main/pg_hba.conf' # host-based authentication file
# (change requires restart)
ident_file = '/etc/postgresql/10/main/pg_ident.conf' # ident configuration file
# (change requires restart)
# If external_pid_file is not explicitly set, no extra PID file is written.
external_pid_file = '/var/run/postgresql/10-main.pid' # write an extra PID file
# (change requires restart)
#------------------------------------------------------------------------------
# CONNECTIONS AND AUTHENTICATION
#------------------------------------------------------------------------------
# - Connection Settings -
#listen_addresses = 'localhost' # what IP address(es) to listen on;
# comma-separated list of addresses;
# defaults to 'localhost'; use '*' for all
# (change requires restart)
port = 5432 # (change requires restart)
max_connections = 100 # (change requires restart)
#superuser_reserved_connections = 3 # (change requires restart)
unix_socket_directories = '/var/run/postgresql' # comma-separated list of directories
# (change requires restart)
#unix_socket_group = '' # (change requires restart)
#unix_socket_permissions = 0777 # begin with 0 to use octal notation
# (change requires restart)
#bonjour = off # advertise server via Bonjour
# (change requires restart)
#bonjour_name = '' # defaults to the computer name
# (change requires restart)
# - Security and Authentication -
#authentication_timeout = 1min # 1s-600s
ssl = on # (change requires restart)
#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
# (change requires restart)
#ssl_prefer_server_ciphers = on # (change requires restart)
#ssl_ecdh_curve = 'prime256v1' # (change requires restart)
ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem' # (change requires restart)
ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key' # (change requires restart)
#ssl_ca_file = '' # (change requires restart)
#ssl_crl_file = '' # (change requires restart)
#password_encryption = on
#db_user_namespace = off
#row_security = on
# GSSAPI using Kerberos
#krb_server_keyfile = ''
#krb_caseins_users = off
# - TCP Keepalives -
# see "man 7 tcp" for details
#tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
# 0 selects the system default
#tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
# 0 selects the system default
#tcp_keepalives_count = 0 # TCP_KEEPCNT;
# 0 selects the system default
#------------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#------------------------------------------------------------------------------
# - Memory -
# Recommended 75 % of the database memory
shared_buffers = 512MB # min 128kB
# (change requires restart)
#huge_pages = try # on, off, or try
# (change requires restart)
#temp_buffers = 8MB # min 800kB
#max_prepared_transactions = 0 # zero disables the feature
# (change requires restart)
# Caution: it is not advisable to set max_prepared_transactions nonzero unless
# you actively intend to use prepared transactions.
work_mem = 16MB # min 64kB
maintenance_work_mem = 128MB # min 1MB
#replacement_sort_tuples = 150000 # limits use of replacement selection sort
#autovacuum_work_mem = -1 # min 1MB, or -1 to use maintenance_work_mem
#max_stack_depth = 2MB # min 100kB
dynamic_shared_memory_type = posix # the default is the first option
# supported by the operating system:
# posix
# sysv
# windows
# mmap
# use none to disable dynamic shared memory
# (change requires restart)
# - Disk -
#temp_file_limit = -1 # limits per-process temp file space
# in kB, or -1 for no limit
# - Kernel Resource Usage -
#max_files_per_process = 1000 # min 25
# (change requires restart)
#shared_preload_libraries = '' # (change requires restart)
# - Cost-Based Vacuum Delay -
#vacuum_cost_delay = 0 # 0-100 milliseconds
#vacuum_cost_page_hit = 1 # 0-10000 credits
#vacuum_cost_page_miss = 10 # 0-10000 credits
#vacuum_cost_page_dirty = 20 # 0-10000 credits
#vacuum_cost_limit = 200 # 1-10000 credits
# - Background Writer -
#bgwriter_delay = 200ms # 10-10000ms between rounds
#bgwriter_lru_maxpages = 100 # 0-1000 max buffers written/round
#bgwriter_lru_multiplier = 2.0 # 0-10.0 multiplier on buffers scanned/round
#bgwriter_flush_after = 512kB # measured in pages, 0 disables
# - Asynchronous Behavior -
#effective_io_concurrency = 1 # 1-1000; 0 disables prefetching
max_worker_processes = 8 # (change requires restart)
max_parallel_workers_per_gather = 2 # taken from max_worker_processes
#old_snapshot_threshold = -1 # 1min-60d; -1 disables; 0 is immediate
# (change requires restart)
#backend_flush_after = 0 # measured in pages, 0 disables
#------------------------------------------------------------------------------
# WRITE AHEAD LOG
#------------------------------------------------------------------------------
# - Settings -
#wal_level = minimal # minimal, replica, or logical
# (change requires restart)
#fsync = on # flush data to disk for crash safety
# (turning this off can cause
# unrecoverable data corruption)
#synchronous_commit = on # synchronization level;
# off, local, remote_write, remote_apply, or on
#wal_sync_method = fsync # the default is the first option
# supported by the operating system:
# open_datasync
# fdatasync (default on Linux)
# fsync
# fsync_writethrough
# open_sync
#full_page_writes = on # recover from partial page writes
#wal_compression = off # enable compression of full-page writes
#wal_log_hints = off # also do full page writes of non-critical updates
# (change requires restart)
wal_buffers = 1 # min 32kB, -1 sets based on shared_buffers
# (change requires restart)
#wal_writer_delay = 200ms # 1-10000 milliseconds
#wal_writer_flush_after = 1MB # measured in pages, 0 disables
#commit_delay = 0 # range 0-100000, in microseconds
#commit_siblings = 5 # range 1-1000
# - Checkpoints -
#checkpoint_timeout = 5min # range 30s-1d
#max_wal_size = 1GB
#min_wal_size = 80MB
#checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 - 1.0
#checkpoint_flush_after = 256kB # measured in pages, 0 disables
#checkpoint_warning = 30s # 0 disables
# - Archiving -
#archive_mode = off # enables archiving; off, on, or always
# (change requires restart)
#archive_command = ''
# placeholders: %p = path of file to archive
# %f = file name only
# e.g. 'test ! -f /opt/archivedir/%f && cp %p /opt/archivedir/%f'
#archive_timeout = 0 # force a logfile segment switch after this
# number of seconds; 0 disables
#------------------------------------------------------------------------------
# REPLICATION
#------------------------------------------------------------------------------
# - Sending Server(s) -
# Set these on the master and on any standby that will send replication data.
max_wal_senders = 8 # max number of walsender processes
# (change requires restart)
wal_keep_segments = 100 # in logfile segments, 16MB each; 0 disables
#wal_sender_timeout = 60s # in milliseconds; 0 disables
#max_replication_slots = 0 # max number of replication slots
# (change requires restart)
#track_commit_timestamp = off # collect timestamp of transaction commit
# (change requires restart)
# - Master Server -
# These settings are ignored on a standby server.
#synchronous_standby_names = '' # standby servers that provide sync rep
# number of sync standbys and comma-separated list of application_name
# from standby(s); '*' = all
#vacuum_defer_cleanup_age = 0 # number of xacts by which cleanup is delayed
# - Standby Servers -
# These settings are ignored on a master server.
#hot_standby = off # "on" allows queries during recovery
# (change requires restart)
#max_standby_archive_delay = 30s # max delay before canceling queries
# when reading WAL from archive;
# -1 allows indefinite delay
#max_standby_streaming_delay = 30s # max delay before canceling queries
# when reading streaming WAL;
# -1 allows indefinite delay
#wal_receiver_status_interval = 10s # send replies at least this often
# 0 disables
#hot_standby_feedback = off # send info from standby to prevent
# query conflicts
#wal_receiver_timeout = 60s # time that receiver waits for
# communication from master
# in milliseconds; 0 disables
#wal_retrieve_retry_interval = 5s # time to wait before retrying to
# retrieve WAL after a failed attempt
#------------------------------------------------------------------------------
# QUERY TUNING
#------------------------------------------------------------------------------
# - Planner Method Configuration -
#enable_bitmapscan = on
#enable_hashagg = on
#enable_hashjoin = on
#enable_indexscan = on
#enable_indexonlyscan = on
#enable_material = on
#enable_mergejoin = on
#enable_nestloop = on
#enable_seqscan = on
#enable_sort = on
#enable_tidscan = on
# - Planner Cost Constants -
seq_page_cost = 1.0 # measured on an arbitrary scale
random_page_cost = 2.0 # same scale as above
#cpu_tuple_cost = 0.01 # same scale as above
#cpu_index_tuple_cost = 0.005 # same scale as above
#cpu_operator_cost = 0.0025 # same scale as above
#parallel_tuple_cost = 0.1 # same scale as above
#parallel_setup_cost = 1000.0 # same scale as above
#min_parallel_relation_size = 8MB
effective_cache_size = 512MB
# - Genetic Query Optimizer -
#geqo = on
#geqo_threshold = 12
#geqo_effort = 5 # range 1-10
#geqo_pool_size = 0 # selects default based on effort
#geqo_generations = 0 # selects default based on effort
#geqo_selection_bias = 2.0 # range 1.5-2.0
#geqo_seed = 0.0 # range 0.0-1.0
# - Other Planner Options -
#default_statistics_target = 100 # range 1-10000
#constraint_exclusion = partition # on, off, or partition
#cursor_tuple_fraction = 0.1 # range 0.0-1.0
#from_collapse_limit = 8
#join_collapse_limit = 8 # 1 disables collapsing of explicit
# JOIN clauses
#force_parallel_mode = off
#------------------------------------------------------------------------------
# ERROR REPORTING AND LOGGING
#------------------------------------------------------------------------------
# - Where to Log -
#log_destination = 'stderr' # Valid values are combinations of
# stderr, csvlog, syslog, and eventlog,
# depending on platform. csvlog
# requires logging_collector to be on.
# This is used when logging to stderr:
#logging_collector = off # Enable capturing of stderr and csvlog
# into log files. Required to be on for
# csvlogs.
# (change requires restart)
# These are only used if logging_collector is on:
#log_directory = 'pg_log' # directory where log files are written,
# can be absolute or relative to PGDATA
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
# can include strftime() escapes
#log_file_mode = 0600 # creation mode for log files,
# begin with 0 to use octal notation
#log_truncate_on_rotation = off # If on, an existing log file with the
# same name as the new log file will be
# truncated rather than appended to.
# But such truncation only occurs on
# time-driven rotation, not on restarts
# or size-driven rotation. Default is
# off, meaning append to existing files
# in all cases.
#log_rotation_age = 1d # Automatic rotation of logfiles will
# happen after that time. 0 disables.
#log_rotation_size = 10MB # Automatic rotation of logfiles will
# happen after that much log output.
# 0 disables.
# These are relevant when logging to syslog:
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'
#syslog_sequence_numbers = on
#syslog_split_messages = on
# This is only relevant when logging to eventlog (win32):
# (change requires restart)
#event_source = 'PostgreSQL'
# - When to Log -
#client_min_messages = notice # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# log
# notice
# warning
# error
#log_min_messages = warning # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# log
# fatal
# panic
#log_min_error_statement = error # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# log
# fatal
# panic (effectively off)
#log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
# and their durations, > 0 logs only
# statements running at least this number
# of milliseconds
# - What to Log -
#debug_print_parse = off
#debug_print_rewritten = off
#debug_print_plan = off
#debug_pretty_print = on
#log_checkpoints = off
#log_connections = off
#log_disconnections = off
#log_duration = off
#log_error_verbosity = default # terse, default, or verbose messages
#log_hostname = off
log_line_prefix = '%m [%p] %q%u@%d ' # special values:
# %a = application name
# %u = user name
# %d = database name
# %r = remote host and port
# %h = remote host
# %p = process ID
# %t = timestamp without milliseconds
# %m = timestamp with milliseconds
# %n = timestamp with milliseconds (as a Unix epoch)
# %i = command tag
# %e = SQL state
# %c = session ID
# %l = session line number
# %s = session start timestamp
# %v = virtual transaction ID
# %x = transaction ID (0 if none)
# %q = stop here in non-session
# processes
# %% = '%'
# e.g. '<%u%%%d> '
#log_lock_waits = off # log lock waits >= deadlock_timeout
#log_statement = 'none' # none, ddl, mod, all
#log_replication_commands = off
#log_temp_files = -1 # log temporary files equal or larger
# than the specified size in kilobytes;
# -1 disables, 0 logs all temp files
log_timezone = 'UTC'
# - Process Title -
cluster_name = '10.0/main' # added to process titles if nonempty
# (change requires restart)
#update_process_title = on
#------------------------------------------------------------------------------
# RUNTIME STATISTICS
#------------------------------------------------------------------------------
# - Query/Index Statistics Collector -
#track_activities = on
#track_counts = on
#track_io_timing = off
#track_functions = none # none, pl, all
#track_activity_query_size = 1024 # (change requires restart)
stats_temp_directory = '/var/run/postgresql/'
# - Statistics Monitoring -
#log_parser_stats = off
#log_planner_stats = off
#log_executor_stats = off
#log_statement_stats = off
#------------------------------------------------------------------------------
# AUTOVACUUM PARAMETERS
#------------------------------------------------------------------------------
#autovacuum = on # Enable autovacuum subprocess? 'on'
# requires track_counts to also be on.
#log_autovacuum_min_duration = -1 # -1 disables, 0 logs all actions and
# their durations, > 0 logs only
# actions running at least this number
# of milliseconds.
#autovacuum_max_workers = 3 # max number of autovacuum subprocesses
# (change requires restart)
#autovacuum_naptime = 1min # time between autovacuum runs
#autovacuum_vacuum_threshold = 50 # min number of row updates before
# vacuum
#autovacuum_analyze_threshold = 50 # min number of row updates before
# analyze
#autovacuum_vacuum_scale_factor = 0.2 # fraction of table size before vacuum
#autovacuum_analyze_scale_factor = 0.1 # fraction of table size before analyze
#autovacuum_freeze_max_age = 200000000 # maximum XID age before forced vacuum
# (change requires restart)
#autovacuum_multixact_freeze_max_age = 400000000 # maximum multixact age
# before forced vacuum
# (change requires restart)
#autovacuum_vacuum_cost_delay = 20ms # default vacuum cost delay for
# autovacuum, in milliseconds;
# -1 means use vacuum_cost_delay
#autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
# autovacuum, -1 means use
# vacuum_cost_limit
#------------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#------------------------------------------------------------------------------
# - Statement Behavior -
#search_path = '"$user", public' # schema names
#default_tablespace = '' # a tablespace name, '' uses the default
#temp_tablespaces = '' # a list of tablespace names, '' uses
# only default tablespace
#check_function_bodies = on
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#default_transaction_deferrable = off
#session_replication_role = 'origin'
#statement_timeout = 0 # in milliseconds, 0 is disabled
#lock_timeout = 0 # in milliseconds, 0 is disabled
#idle_in_transaction_session_timeout = 0 # in milliseconds, 0 is disabled
#vacuum_freeze_min_age = 50000000
#vacuum_freeze_table_age = 150000000
#vacuum_multixact_freeze_min_age = 5000000
#vacuum_multixact_freeze_table_age = 150000000
#bytea_output = 'hex' # hex, escape
#xmlbinary = 'base64'
xmloption = 'document'
#gin_fuzzy_search_limit = 0
#gin_pending_list_limit = 4MB
# - Locale and Formatting -
datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
timezone = 'UTC'
#timezone_abbreviations = 'Default' # Select the set of available time zone
# abbreviations. Currently, there are
# Default
# Australia (historical usage)
# India
# You can create your own file in
# share/timezonesets/.
#extra_float_digits = 0 # min -15, max 3
#client_encoding = sql_ascii # actually, defaults to database
# encoding
# These settings are initialized by initdb, but they can be changed.
lc_messages = 'C.UTF-8' # locale for system error message
# strings
lc_monetary = 'C.UTF-8' # locale for monetary formatting
lc_numeric = 'C.UTF-8' # locale for number formatting
lc_time = 'C.UTF-8' # locale for time formatting
# default configuration for text search
default_text_search_config = 'pg_catalog.english'
# - Other Defaults -
#dynamic_library_path = '$libdir'
#local_preload_libraries = ''
#session_preload_libraries = ''
#------------------------------------------------------------------------------
# LOCK MANAGEMENT
#------------------------------------------------------------------------------
#deadlock_timeout = 1s
#max_locks_per_transaction = 64 # min 10
# (change requires restart)
#max_pred_locks_per_transaction = 64 # min 10
# (change requires restart)
#------------------------------------------------------------------------------
# VERSION/PLATFORM COMPATIBILITY
#------------------------------------------------------------------------------
# - Previous PostgreSQL Versions -
#array_nulls = on
#backslash_quote = safe_encoding # on, off, or safe_encoding
#default_with_oids = off
#escape_string_warning = on
#lo_compat_privileges = off
#operator_precedence_warning = off
#quote_all_identifiers = off
#sql_inheritance = on
#standard_conforming_strings = on
#synchronize_seqscans = on
# - Other Platforms and Clients -
#transform_null_equals = off
#------------------------------------------------------------------------------
# ERROR HANDLING
#------------------------------------------------------------------------------
#exit_on_error = off # terminate session on any error?
#restart_after_crash = on # reinitialize after backend crash?
#------------------------------------------------------------------------------
# CONFIG FILE INCLUDES
#------------------------------------------------------------------------------
# These options allow settings to be loaded from files other than the
# default postgresql.conf.
include_dir = 'conf.d' # include files ending in '.conf' from
# directory 'conf.d'
#include_if_exists = 'exists.conf' # include file only if it exists
#include = 'special.conf' # include file
#------------------------------------------------------------------------------
# CUSTOMIZED OPTIONS
#------------------------------------------------------------------------------
# Add settings for extensions here
listen_addresses = '*'
port = 5432
ssl = true
ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem'
ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key'
wal_level = hot_standby
max_wal_senders = 8
wal_keep_segments = 100
hot_standby = on

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@ -7,9 +7,27 @@ source /env-data.sh
# Refresh configuration in case environment settings changed.
cat $CONF.template > $CONF
# This script will setup necessary configuration to optimise for PostGIS and to enable replications
cat >> $CONF <<EOF
wal_level = hot_standby
max_wal_senders = $PG_MAX_WAL_SENDERS
wal_keep_segments = $PG_WAL_KEEP_SEGMENTS
hot_standby = on
listen_addresses = '${IP_LIST}'
shared_buffers = 500MB
work_mem = 16MB
maintenance_work_mem = 128MB
wal_buffers = 1MB
# uncomment checkpoint_segments below if postgresql <= 9.4
# checkpoint_segments = 6
random_page_cost = 2.0
xmloption = 'document'
#archive_mode=on
#archive_command = 'test ! -f ${WAL_ARCHIVE}/%f && cp -r %p ${WAL_ARCHIVE}/%f'
EOF
# Optimise PostgreSQL shared memory for PostGIS
# shmall units are pages and shmmax units are bytes(?) equivalent to the desired shared_buffer size set in setup_conf.sh - in this case 500MB
echo "kernel.shmmax=543252480" >> /etc/sysctl.conf
echo "kernel.shmall=2097152" >> /etc/sysctl.conf

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@ -30,7 +30,7 @@ fi
trap "echo \"Sending SIGTERM to postgres\"; killall -s SIGTERM postgres" SIGTERM
echo "Use modified postgresql.conf for greater speed (spatial and replication)"
cat /tmp/postgresql.conf > ${CONF}
su - postgres -c "${POSTGRES} -D ${DATADIR} -c config_file=${CONF} ${LOCALONLY} &"